Corrosion-resistant filler for lacquer coatings
FIELD: construction industry.
SUBSTANCE: invention refers to corrosion-resistant filler on the basis of lignified wastes of plant raw material, which is included in lacquer coatings and used for protection of metal surfaces against corrosion. Filler includes base made from lignified wastes of plant raw material crushed till powder is obtained, and amine-bearing addition. As lignified wastes of plant raw material, there used are fruit kernels (apricots, peaches, cherries, plums) and/or shells of nuts (walnuts, almond nuts, pistaches, coconuts, pine nuts, peanuts) or their composition with kernels of berries (grape, pomegranate, cornel), which are crushed to 5-40 mcm particle size. As amine-bearing addition, there used is monoethanolamine or triethanolamine.
EFFECT: filler has high corrosion-resisting properties and properties of rust solvent.
7 cl, 3 tbl
The invention relates to the anti-corrosion additives on the basis of numb waste plant materials that are used in coatings for corrosion protection of metal surfaces, and can be used in various industries such as mechanical engineering, shipbuilding, metallurgy, chemical and oil and gas industry and other
Known corrosion-resistant filler for paints and coatings (see the patent of Ukraine # 44949, C09D 5/12, publication date 15.03.2002, containing the basis numb from waste plant material, which is used as the bark of eucalyptus with a humidity of no more than 12-14 wt.%, derived from the trunks of the eucalyptus trees and crushed to a powder, aminecontaining additive and water in the following ratio, wt.%:
|powder of bark of eucalyptus with humidity|
|no more than 12-14%||75-80|
|water||the rest of it.|
A disadvantage of the known technical solution is relatively low and tocorrosion efficiency, due to a weak property to the inhibition of corrosion processes during the conversion of rust due to its low content of high molecular weight (14-C22) fatty acids in the extractive part of the bark of eucalyptus.
Known corrosion-resistant filler for paints and coatings (see the patent of Ukraine # 37536 AND, C09D 5/08, 5/12, date of publication, 15.01.2001, containing the basis numb from waste plant material, which is used as grape seeds, crushed to a powder, aminecontaining component monoethanolamine and drinking water in the following ratio, wt.%:
|powder grape seed||75-80|
|drinking water||the rest of it.|
The disadvantage of this technical solution is the low ability to inhibit corrosion (passivation)occurring on the metal surface with a layer of rust under the paint film coating operation, resulting in blistering and delamination of the coating. Low-inhibiting properties of the filler in the patent is No. 37536 And associated with the that extractive part of the filler, based on grape seed contains only low molecular weight (up to C8-C10fatty acids, which are aggressive and able only to dissolve corrosion products. These properties of this filler limit its scope solely to the rusted metal surfaces with rust layer is not less than 40-50 microns.
In addition, the composition of this song, as with analog, includes a component such as water, which causes the need for additional surgery drying of the final product and, thus, increases the cost of the filler and complicates the process of its manufacture.
The basis of the invention is the task of expanding the range of corrosion-resistant fillers through the creation of such a universal corrosion resistant filler for coatings based numb waste plant material, which due to the use of other plant components and their relationships between them provides increased durability (corrosion resistance) of the paint coating as a result of increasing inhibitory properties of the filler, while maintaining his converts rust properties. While the claimed composition does not require drying of the final product - anticorrosion the aqueous filler, that reduces the cost of its manufacture.
The problem is solved in that in the corrosion-resistant filler for coatings containing the basis numb from waste plant material, ground to a powder, and aminecontaining additive according to the invention as stiff waste plant material using fruit and/or nut shell or composition in combination with seed berries in the following ratio, wt.%:
|base (crushed stiff|
|waste plant materials: seeds|
|fruit and/or nut shell, or||90-97|
|the composition of the above-mentioned components|
|seeds of berries)|
As the seed of the fruit used, for example, apricot and/or pits of peaches and/or pits of cherries and/or bone loss.
As walnut shell is used, for example, schorl the PU walnuts, and/or the shell of almond nuts, and/or shell pistachio nuts and/or the shell peanuts, and/or coconut husks, and/or shell pine nuts.
As the seeds of the berries is used, for example, grape seeds and/or pomegranate seeds and/or seeds dogwood.
The content of the seed berries in the basis is not more than 90%.
As the base used stiff waste plant materials, crushed to a fraction of 5-40 microns.
As aminecontaining supplements use monoethanolamine or triethanolamine.
Using as a basis the proposed composition, for example, the crushed seeds of fruits and/or walnut shell, due to the additional presence in their extractive part of 5-15 wt.% anions of high molecular weight fatty acids, while the presence also of low molecular weight fatty acids, provides a slower degradation of the paint coating in the course of its operation by blocking layer of rust, and thus stopping its growth. The mechanism of this phenomenon is based on the extraction of chemically active components of the filler and chemical interactions with the atmospheric corrosion products on the surface of the metal. The moisture coming through the paint film, fills in the first place, the particles of the filler, which is what I sorbent moisture, and extracts chemically active substances contained therein. Reaching the surface layer of rust, moisture turns into the extract, which promotes passivation of corrosion products and turns them into insoluble compounds. Use as the basis of the composition of these components in combination with the seeds of berries allows you to save converts rust properties of the filler while improving its anti-corrosive properties. Thus, the claimed composition allows to obtain universal corrosion resistant filler which can be used in paint coatings that are designed to be prepared metal surface (in the absence of corrosion products)and corroded with layers of rust to 100 μm. In addition, the filler of the proposed structure does not require drying, which significantly simplifies the manufacture and reduces the cost.
We offer corrosion resistant filler for coatings prepared as follows.
Original stiff waste plant materials or composition in a predetermined ratio pre-ground, for example, in a ball mill or other grinding equipment to a powder with a grain size of 5-40 μm. In the resulting powder was added rasscetnocashbox aminecontaining supplements - ethanolamine or triethanolamine and continue grinding in a ball mill for 0.5-1.0 hours as a result the final product is corrosion resistant filler.
Characteristics of the final product: appearance - powder beige to dark brown (depending on components); odor - slaboumniy or odorless; the dispersion is not more than 5-40 μm; pH of 10% aqueous extract from 5 to 8 conventional units; solubility in water is from 3 to 10%.
Table 1 shows examples of formulations fundamentals of corrosion resistant filler depending on the components used stiff vegetative waste.
|Examples of formulations||Basis, wt.%|
|fruit||shell nuts (walnut, hazelnut, almond, pistachio, peanut, coconut, cedar, or their composition)||bone berries|
The choice of the composition of the base due to the main purpose of the filler in the paint coating and the thickness of the layer of corrosion products on the treated metal surface. For corrosion protection of the metal surface with thick layers of rust (90-120 microns) requires priming paint material with a filler, the composition includes up to 80-90 wt.% powder of seeds of the berries. With decreasing thickness of the layer of corrosion products are used for covering the filler composition, which is dominated by fruit and nut shell (60-80 wt.%). In the absence of the layer of corrosion products is recommended to use a filler containing only fruit and nut's shell.
Table 1 examples of compounds of the fundamentals of corrosion resistant filler are not only possible to achieve the above technical result and do not exclude other options compositions, which contain a collection of characteristics that are included in the invention.
Table 2 shows examples of the filler depending on the content of the framework and aminecontaining supplements.
Table 2 Components filler The content of components in the filler, wt.% example 1 example 2 example 3 Base (crushed numb waste plant materials: seeds of fruits and/or shells of walnuts or composition of the above-mentioned components with seeds berries) 90 93 97 Aminecontaining additive (ethanolamine or triethanolamine) 10 7 3 Note: in examples 1-3 used part 16 (table 1) fundamentals of corrosion resistant filler comprising (1:1) shell walnuts and pistachio nuts.
The use of corrosion-resistant filler is as follows: the filler in an amount up to 8 wt.% add to the binder, for example, to paint MA-15, varnish, enamel PF-115, epoxy putty EP-0010 and thoroughly dispersed. The resulting composition is applied by spray or brush on the surface of the metal. The full floor is merisalo cover - 10-15 days at a temperature of 20°C.
Table 3 shows the results of the tests we offer corrosion resistant filler in comparison with the filler under the patent of Ukraine №A in the composition of the paint coating.
|The properties of the varnish, which contains the inventive filler||The thickness of the layer of rust, mcm||Indicators|
|examples of suggested songs||The filler according to the patent No. A|
|The corrosion rate St3 with rust layer (30 μm) in a 10-percentage extracts fillers, determined by the method of polarization resistance, mm/year||30||15,4||13,5||16,0||32,0|
|Degree of protection (inhibition) against corrosion, %||30||75||83||72||35|
|The strength of the blow Y-1 And evaluated after the test coatings for 25 days in thermohydrometer, cm||50||38||45||35||15|
|Ohmic resistance determined after exposure for 25 days in 3% sodium chloride solution, Ohm·cm||50||6900||8000||7100||2200|
|The extent of the lesion (%) coatings evaluated after 25 days of exposure in thermohydrometer at a temperature of 45°C, relative humidity 95%||50||15||10||18||50|
Test corrosion resistant filler conducted as part of a system paint finish (1 coat paint primer GF-0119, which includes 7% filler and 1 layer of enamel PF-115). The total thickness of the paint coating is 80 μm. The thickness of the layer model of rust on the metal 50 and 100 microns.
Evaluation of corrosion rate St3 with rust layer (30 μm) in 10% extracts fillers carried out by the method of polarization resistance in accordance with DSTU 3895-99 (GOST 9.514-99) corrosion Inhibitors of metals to aquatic systems. Electrochemical method for the determination of protective ability.
The change of corrosion rate were recorded polarization method on the indicator polarization resistance R.
Corrosion products on the received samples in accordance with our own quick method of obtaining a uniform layer of rust by etching of metal samples for 10 minutes in 10% hydrochloric acid with a temperature of 40-50°C, followed by exposure for 15 minutes in distilled water at a constant intensive aeration and exposure to the air (at least 3 times). This treatment leads to the formation on the metal surface layer of rust, which is, according to the results of x-ray analysis, PR is maintained at a DRON-3 Co-α radiation, mainly of γ-Reaon and α-F.
The strength of the blow Y-1 And evaluated after the test coatings for 25 days in thermohydrometer. Assessing the safety impact is a standard indicator of the quality of the coating and carried out according to GOST 4765-73 on installing the Constant Y-1 A.
The ohmic resistance of the coatings is determined after exposure for 25 days in 3% sodium chloride solution. Evaluation of ohmic resistance conducted in accordance with DSTU 3895-99 (GOST 30662-99) rust Converters. Test methods protective properties of the coatings.
The extent of the lesion (%) coatings evaluated after 25 days of exposure in thermohydrometer at a temperature of 45°C, relative humidity 95% - according to DSTU 3895-99 (GOST 30662-99) rust Converters. Test methods protective properties of the coatings. Evaluation of the protective properties of coatings conducted in accordance with GOST 9.407-84.
The results of the tests, the reduction in table 3, show that the proposed corrosion-resistant filler is as high corrosion (any abscopal) properties, and the properties of rust Converter. These qualities provide a significant increase in service life of the paint coating. This composition allows to obtain universal corrosion-resistant filler, which you can use is to use as traditional paint and varnish coatings, and in soils-rust converters. The cost of this filler is reduced due to the reduction of energy consumption for drying and simplify synthesis technology.
1. Corrosion-resistant filler for coatings containing the basis numb from waste plant material, ground to a powder, and aminecontaining additive, characterized in that as numb waste plant material using fruit and/or nut shell, or the composition of the above-mentioned components with seeds of berries in the following ratio, wt.%:
|base (crushed numb waste|
|plant materials: seeds of fruit, and/or||90-97|
|shells of walnuts, or compositions mentioned|
|components with seeds berries)|
2. Corrosion-resistant filler according to claim 1, characterized in that as the seed of the fruit used, for example, apricot, and/or pits of peaches, and/or costock the cherries, and/or bone loss.
3. Corrosion-resistant filler according to claim 1, characterized in that as walnut shell is used, for example, walnut shells, and/or the shell of almond nuts, and/or shell pistachio nuts, and/or the shell peanuts, and/or coconut husks, and/or shell pine nuts.
4. Corrosion-resistant filler according to claim 1, characterized in that as the seed berries are used, for example, grape seeds, and/or pomegranate seeds and/or seeds dogwood.
5. Corrosion-resistant filler according to claim 1, characterized in that the content of the seed berries in the basis is not more than 90%.
6. Corrosion-resistant filler according to claim 1, characterized in that is used as a base numb waste plant materials, crushed to a fraction of 5-40 microns.
7. Corrosion-resistant filler according to claim 1, characterized in that as aminecontaining supplements use monoethanolamine or triethanolamine.
SUBSTANCE: invention concerns method of protection and recovery of corroded metal surfaces operating in abrasive wear conditions and aggressive media, e.g. in fertiliser transportation, and can be applied in power-producing, chemical and mining industry for rusted equipment repair. Method involves application of primer layer on metal surface with further drying till aftertack, insulation layer with further drying till aftertack, and external layer with further drying to complete hardening. Primer layer is made of composition including the following components, wt %: 20.0-30.0 of epoxy diane resin with epoxy equivalent weight of 450-500, 15.0-25.0 of Versamid 115 polyamide solidifier, 12.0-25.0 of pigments, 12.0-25.0 of fillers, 2.0-5.0 of amine-containing Cardolite NC 562 solidifier based on 3-n pentadecanylphenol, the rest is organic solvents. Insulation layer is made of composition including the following components, wt %: 20.0-35.0 of epoxy diane resin with epoxy equivalent weight of 450-500, 15.0-30.0 of Versamid 115 polyamide solidifier, 5.0-10.0 of fillers, 10.0-50.0 of micaceous iron ore, 2.0-5.0 of amine-containing Cardolite NC 562 solidifier based on 3-n pentadecanylphenol, 0.8-1.2 of structurising additive, the rest is organic solvents. External layer is made of composition including the following components, wt %: 20.0-40.0 of acrylic or polyether hydroxyl-containing resin, 11.0-22.0 of aliphatic isocyanate solidifier, 10.0-20.0 of pigments, 10.0-40.0 of micaceous iron ore, 5.0-10.0 of fillers, 0.2-0.6 of polysiloxane modified organically, 0.8-1.2 of structurising additive, 0.6-2.4 of aluminum powder, the rest is organic solvents. Composition of external layer includes additionally Metatin Catalyst tin dibutyllaurate in amount of 0.05-0.5 wt % as drying accelerator.
EFFECT: enhanced corrosion resistance of coating.
cl, tbl, 2 ex
SUBSTANCE: invention concerns antirust modificating coating obtained from composition of (mass %): orthophosphoric acid -25.0-40.0; graphite "ГЭ-3" - 12.0-30.0; acryl dispersion Diakam-11 -30.0-50.0; auxiliary substance "ОП-10" - 0.25-2.5; industrial flaxseed oil - 2.0-10.0; concrepol "B" based on water solution of poly-N-vinylpyrrolidone - 0.2-2.0.
EFFECT: application at temperature below zero possible; faster drying; wide range of storage temperature; longer storage without exfoliation and wider range of maintenance temperatures for a building covered with this coating.
FIELD: protecting materials.
SUBSTANCE: invention relates to priming compositions used for anticorrosive covers applied on surface of mainly ferrous metals in machine engineering, and woody and other materials. The priming composition comprises lacquer GF-01, red pigment, siccative, solvent, chalk of sort M-5 and lecithin as a disperser, siccative NF-1 as a siccative, and slime after dry scrubbing in electric steel melting production of the following chemical composition, wt.-%: SiO2, 7.76; phosphorus (P), 0.041; chrome (Cr) total, 1.0; Al2O3, 0.93; TiO2, 0.099; MnO, 2.29; CaO, 21.3; MgO, 24.5; FeO, 3.91; Fe2O3, 32.02; CaF2, 5.26; CaO (incompletely burned material), 0.89 in the following granulometric composition of slime, %: below 20 mcm, 15; from 20 to 25 mcm, 60, and from 25 to 100 mcm, 25. Invention provides decreasing cost and enhancing exploitation parameters of the priming in coating the broad spectrum of surfaces in machine engineering and building.
EFFECT: improved and valuable properties of priming composition.
FIELD: priming compositions for protection of metal surfaces working under atmospheric conditions against corrosion; application of primers and coats.
SUBSTANCE: proposed primer-enamel paint includes the following components, mass-%: 40.0-60.0 of epoxy diane resin,; 5.0-15.0 of 50-% polyvinyl acetate dispersion and 0.2-2.0 of synthetic oligopiperylene rubber used as film-forming agents, 0.03-0.1 of polyoxyethylene alkyl phenol ester used as surfactant; 2.0-5.0 of chromium (III) oxide, as well as 2.0-5.0 of aluminum hydroxide and 2.0-5.0 of cardinal red used as anti-corrosion pigments, 8.0-12.0 of polyethylene polyamine used as hardening agent, 0.3-0.7 of dibutyl phthalate used as plasticizing agent, 1.0-10.0 of butyl cellosolve used as cosolvent, 0.01-1.0 of orhto-phosphoric acid used as modifying additive, water, up to 100.
EFFECT: improved quality of coat; enhanced resistance to oils, gasoline, lubricating and cooling fluids and aggressive media.
2 tbl, 16 ex
FIELD: chemical industry; mechanical engineering; extractive industry; heat and power industry; other industries; methods of protection and recovery of the of the corroded metallic surfaces.
SUBSTANCE: the invention is pertaining to the method of protection and recovery of the corroded metallic surfaces working in conditions of the abrasive wear, action of the aggressive mediums, for example, at transportation of the fertilizers, in the heat and power industry, chemical industry and the extractive industry at the repairs of the rust through equipment. The method provides, that at first they apply on the metallic surface of the priming coating based on the composition containing the following components (in mass. %): 20.0-30.0 - the epoxy dian resin with the epoxy reacting weight of 450-500, the curing agent, 12.0-25.0 - pigments, 12.0-25.0 - fillers, 20.0-30.0 - polyamide curing agent Versamid 115, the rest - organic solvents, with the subsequent drying "up to detachment". After that they apply the second insulating layer having the following composition (in mass %): 20.0-35.0 - of the epoxy dian resin with the epoxy reacting weight of 450-500, 5.0-10.0 - pigments, 5.0-12.0 -fillers, 20.0-35.0 - polyamide curing agents Versamid 115, 10.0-30.0 - micaceous iron oxides, the rest - the organic dissolvents, with the subsequent "up to detachment". After that they apply the third outer layer from the composition containing the following components (in mass %): 20.0-40.0 - the acrylic or polyester hydroxyl-containing resin used as the binder, 10.0-20.0 - pigments, 5.0-10.0 - fillers, 11.0-22.0 - the curing agent - aliphatic polyisocyanate, 0.1-0.5 - the organically modified polysiloxane, the rest - the organic solvents, further the product is dried up to the complete solidification. The invention allows to increase the corrosion resistance of the coating.
EFFECT: the invention ensures the increased corrosion resistance of the coating.
1 tbl, 2 ex
FIELD: paint and varnish industry, anti-corrosive agents.
SUBSTANCE: invention relates to corrosion modifying agents used for covering metallic surfaces without their preliminary cleansing from corrosion products. The corrosion modifying agent comprises the following components, wt.-%: hydrolysis lignin, 19-23; oil as by-side product in caprolactam manufacturing, 5-10; thermic ortho-phosphoric acid in the concentration 70%, 17-26, and water, balance. Invention provides preparing a composition transforming rust corrosion with layer thickness up to 160 mcm that provides enhancing adhesion of applied paint and varnish materials after treatment with the proposed modifying agent significantly.
EFFECT: improved and valuable properties of agent.
FIELD: paint and varnish industry.
SUBSTANCE: invention relates to rust modifying agents that use used for coating rust metallic surfaces without their preliminary cleansing from rust, among them, with mazut and oily pollutions and can be exploited in the range of temperatures from -50°C to +500°C. Proposed rust transformer comprises the following components, wt.-%: ortho-phosphoric acid, 37.0-51.0; graphite, 24.0-34.0; concrepol B, 0.3-1.2; lignosulfonates, 0.5-1.0, and water, 18-27. Invention provides enhancing effectiveness and prevention of separating into layers of the transformer for liquid and solid phase at prolonged storage.
EFFECT: improved and valuable properties of transformer.
FIELD: building materials.
SUBSTANCE: invention relates to a method for preparing an aqueous epoxide corrosion-stable priming used for protection against corrosion and no containing hexavalent chrome compounds. Priming comprises aqueous epoxide compound based on bisphenol A diglycidyl ester, hardening agent and chromate-free pigment inhibiting corrosion. Hardening agent is taken among the group comprising aqueous modified adducts of amines or polyamidoamines decreasing the water content. Chromate-free pigment inhibiting corrosion comprises chromate-free pigment additive inhibiting corrosion that is taken among the group comprising mixtures of cerium molybdate with bismuth vanadate, cerium molybdate with strontium tungstate, cerium phosphate with strontium tungstate, bismuth vanadate with bismuth molybdate and strontium tungstate, and their mixtures also. Pigment-filling agents and hydrophobic hardening agent are added to the priming composite for enhancing waterproofness and corrosion resistance. Invention provides excluding the negative effect of hexavalent chrome on environment objects and human body.
EFFECT: improved and valuable properties of priming.
FIELD: protective materials.
SUBSTANCE: invention relates to a method for preparing priming coat for steel that is designated for assembly and applying upper coat. Steel in grounded with priming coat comprising a silicon dioxide-base binding substance containing silicon dioxide aqueous sol stabilized with aluminum oxide and, optionally, small amount of alkaline metal silicate. Indicated binding agent shows the mole ratio SiO2/M2O = at least 6:1 wherein M means the total amount of alkaline metal ions and ammonium ions. After drying the priming coat up to disappearance of stickiness in weal touch by a finger it is treated optionally with a solution that enhances the strength of the priming coat film.
EFFECT: improved and valuable properties of coat.
12 cl, 7 tbl, 21 ex
FIELD: paint and varnish industry.
SUBSTANCE: invention relates to rust modifying agents that are used for applying on corroded metal surfaces. The described anticorrosive modifying coating comprises the following components, weight %: acrylic dispersion "Diakam-11" as a film-forming agent, 36.0-48.0; graphite GE-3 as a pigment and filling agent, 14.0-23.0; 8-oxyquinoline as a chelating agent, 0.5-1.8; ortho-phosphoric acid as a modifying additive, 25.0-35.0; polyethylsiloxane liquid PES-5, 5.0-10.0; accessory agent OP-10, 0.2-0.5, and concrepol AD-1 based on poly-N-vinylpyrrolidone aqueous solution, 0.5-1.5. Invention provides the possibility for effective conversion of rust to neutral undercoat, prolonged exploitation time being both in corrosive and water-saturated media and under conditions of open atmosphere in the range of temperatures from -70°C to +200°C and without additional overcoating with paint and varnish materials and without applying on mazut-coated and oiled metallic surfaces without their degreasing.
EFFECT: improved and valuable properties of coating.
SUBSTANCE: anticorrosion coating composition which can be used for protecting steel structures, objects and equipment from corrosion in atmospheric conditions and aqueous media, contains finely dispersed zinc powder, polystyrene and/or a copolymer of styrene with rubber, organic solvent and a rheological additive, and additionally a binder in form of a polyisocyanate prepolymer - aromatic polyisocyanate prepolymer based on diphenylmethanediisocyanate and moisture-absorbing additives. The finely dispersed zinc powder is obtained through physical vapour deposition. The moisture-absorbing additive used is tosylisocyanate and/or micronised highly porous crystalline aluminium silicat. The rheological additive used is bentonite or montmorillonite. The organic solvent used is a solvent of oil or xylene or butylacetate or methoxypropylacetate or white spirit or mixture thereof.
EFFECT: improved physical and mechanical and protective properties of the coating based on the composition, reduced presence of defects in the coating, reduced consumption of the composition, with preservation of protective properties, increased stability during storage and longer storage life.
8 cl, 4 tbl
FIELD: production processes.
SUBSTANCE: blemished surface is covered with polyester resins Derakane 8084 as primer coat, after drying surface is covered with at least two layers of powder-bonded glass-fiber mat and three layers of surface film as reinforcing layer, these layers are resinated by Derakane 411-350, rolled, after drying protecting cover as wax top coat based on isophthalic polyester is applied.
EFFECT: improvement of coating service life.
3 cl, 1 dwg
SUBSTANCE: described is a heat resistant coating composition containing the following, wt %: polyorganosiloxane resin - 20-25, pentaphthalic lacquer - 8-14, isobutylmethacrylate polymer - 5-7, heat resistant pigment - 11-17, filler - 5-10, rheological additive - 1-2, thickener - 1-2 and organic solvent - the rest. The composition contains porous silicate in form of pearlite or kieselguhr, and the heat resistant pigment is aluminium powder or heat resistant pigments of different colours.
EFFECT: increased sedimentation resistance during storage and provision for coating with high resistance to physical and chemical effects.
3 cl, 2 tbl, 15 ex
SUBSTANCE: invention relates to anticorrosion zinc-containing coating compositions for corrosion protection of steel structures, objects and equipment used in average- and highly aggressive media and can be used in industrial and civil engineering, shipbuilding, motor car construction and bridge building for protecting engineering and hydraulic engineering structures, industrial and power installations, equipment of chemical and petrochemical industry, port structures. The anticorrosion composition contains finely dispersed zinc powder, zinc oxide, binder in form of chlorinated rubber, modified with alkyd resin with acidity of not more than 20 mgKOH/g and plasticised with chlorinated paraffin wax in a medium of organic solvent and target additives in form of polymerised amphoteric oil, organophilic bentonite and graphite.
EFFECT: obtaining one-pack anticorrosion composition with good processing characteristics with longer protection of coatings in average- and highly aggressive media.
SUBSTANCE: invention relates to compositions for anticorrosion zinc-containing coating material of first coating, paint and enamel type for corrosion protection of steel structures, objects and equipment used in average- and highly aggressive media and can be used in industrial and civil engineering, shipbuilding, motor car construction and bridge building for protecting engineering and hydraulic engineering structures, industrial and power installations, equipment of chemical and petrochemical industry, port structures. The composition contains finely dispersed zinc power, binder in form of chlorinated rubber, epoxy resin, chlorinated paraffin wax and an organic solvent and target additives in form of polymerised amphoteric oil based on aromatic oil distillates, organophilic bentonite and additionally graphite.
EFFECT: obtaining one-pack anticorrosion composition with good processing characteristics with longer protection of coatings in average- and highly aggressive media.
SUBSTANCE: base coat contains chlorine-containing polymer, pigment, plasticiser, organic solvent and rust solvent. The base coat also contains a texturing agent, a dispersing agent and an imidazole derivative. The chlorine-containing polymer used is a vinylchloride copolymer and components are in the following ratio, wt %: vinylchloride copolymer 10-20; plasticiser 3-6; texturing agent 0.2-0.6; dispersing agent 0.2-0.6; pigment 10-25; modifier-rust solvent 5-10; imidazole derivative 0.2-3.0; organic solvent - the rest.
EFFECT: use of the invention allows for depositing a base coat on an unprepared surface in a wide temperature range.
12 cl, 2 tbl
SUBSTANCE: invention relates to a cold drying wear-resistant polymer composition, which can be used for protecting metal and concrete structures, for making floors and for other purposes. The composition contains the following components with their ratio given in pts. wt: 100 epoxy resin, 30.0 to 60.0 modifier, 40.0 to 80.0 flake reinforcement, 5.0 to 10.0 aerosil and/or 1.0 to 20.0 microtalc, 8.0 to 28.0 amine hardening agent. If necessary, the composition can contain a solvent in amount of up to 120 pts. wt. The modifier is butadiene-nitrile low-molecular rubber, or polysulphide rubber, or acrylic resin. The flake reinforcement is flaked silicon or iron mica. The amine hardening agent is a product of condensing N-methylol caprolactam with an aliphatic amine hardening agent, selected from a group which consists of diethylene triamine, triethylene tetraamine, polyethylene polyamine, or a mixture of the above mentioned product of condensing aliphatic amine, selected from a group which consists of diethylene triamine, tetraethylene tetraamine, polyethylene polyamine, and/or with organosilicon amine.
EFFECT: invention increases resistance to type B-3V synthetic oils, light resistance, adhesion to metal or concrete, elasticity, wear-resistance, hardness.
2 tbl, 11 ex
SUBSTANCE: invention relates to heat-insulating coatings. The anticorrosion and heat-insulating coating is made from a water-suspension composition with viscosity ranging from 1 to 100 Pa·s. The water-suspension composition contains a mixture of 5 to 95 vol. % polymer binder with 5 to 95 vol % hollow microspheres. The polymer binder is a water-emulsion polymer latex composition, which contains from 10 to 90 vol. % (co)polymer, selected from a group which includes acrylate homopolymer, styrene-acrylate copolymer, butadiene-styrene copolymer, polystyrene, butadiene polymer, polychlorovinyl polymer, polyurethane polymer, vinylacetate polymer or copolymer, or their mixture and from 10 to 90 vol % mixture of water and surface active substance. The hollow microspheres are in form of microspheres with different sizes from 10 to 500 micrometres and different packed density from 50 to 650 kg/m3, selected form a group which includes hollow glass microspheres, hollow ceramic microspheres, hollow polymer microspheres, hollow technogenic microspheres or their mixture. The water-suspension composition also contains a mixture of polyatomic alcohol with polybasic carboxylic or amino acid in equimolecular ratio.
EFFECT: longer service life of composition in harsh climatic and industrial conditions.
2 tbl, 1 ex
SUBSTANCE: invention is related to materials for protection against corrosion of pipeline metal surfaces and electric cables in metal casing, and also to materials for sealing of accumulators. Mastic based on asmol contains oil dissolvent, ASM glue, plasticiser, bivinyl styrene thermoplastic elastomer DST and syndiotactic 1.2 polybutadiene. Mastic may additionally contain chalk.
EFFECT: mastic has high resistance to loads due to increase of its strength characteristics, when mastic is applied onto polymer base, possibility is provided to use tape at low temperatures (up to -20°C).
2 cl, 1 tbl
SUBSTANCE: filming agent represents distillation residue of 4,5,6,7-tetrahydroindole production.
EFFECT: filming agent is highly adhesive to metals and protects them efficiently against corrosion.
1 cl, 4 ex
FIELD: chemical industry, paint-vehicle systems, in particular heat protective dyes.
SUBSTANCE: claimed dye contains ceramic and corundum microspheres; resins, selected from group including silicone resin, polyesterepoxy resin, acrylic resin dispersions as binder; pigment; and aluminum powder as deflector. Such composition provides reduced heat loss into environment. Obtained dyes have thermal gradient, improved heat-retention properties and strength, and useful in corrosion and heat-loss protection of building construction, transport, gas and oil lines, heating systems, etc.
EFFECT: easier method for dye production; strength and homogenous heat protective dye layer of improved adhesiveness.
2 cl, 3 tbl