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
aminecontaining additive5-15
waterthe 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 seed75-80
aminecontaining additive5-13
drinking waterthe 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, or90-97
the composition of the above-mentioned components
seeds of berries)
aminecontaining additiverest

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.

Table 1
Examples of formulationsBasis, wt.%
fruitshell nuts (walnut, hazelnut, almond, pistachio, peanut, coconut, cedar, or their composition)bone berries
apricotspeachescherriesplumsgrapedogwood pomegranate
1----3070--
2-50---50--
32010--2050--
4-10---90--
530----70--
6--30--301030
720---20-2040
8102020-20-30-
9-30-20---50
10-30--3020-20
11 202010102010-10
12100------
13100------
14-100-----
15--100----
16- ---100---

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 2Components fillerThe content of components in the filler, wt.%example 1example 2example 3Base (crushed numb waste plant materials: seeds of fruits and/or shells of walnuts or composition of the above-mentioned components with seeds berries)909397Aminecontaining additive (ethanolamine or triethanolamine)1073Note: 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.

Table 3
The properties of the varnish, which contains the inventive fillerThe thickness of the layer of rust, mcmIndicators
examples of suggested songsThe filler according to the patent No. A
123
The corrosion rate St3 with rust layer (30 μm) in a 10-percentage extracts fillers, determined by the method of polarization resistance, mm/year3015,413,516,032,0
Degree of protection (inhibition) against corrosion, %3075837235
The strength of the blow Y-1 And evaluated after the test coatings for 25 days in thermohydrometer, cm5038453515
10028352512
Ohmic resistance determined after exposure for 25 days in 3% sodium chloride solution, Ohm·cm506900800071002200
1005600630059501800
The extent of the lesion (%) coatings evaluated after 25 days of exposure in thermohydrometer at a temperature of 45°C, relative humidity 95%5015101850
1002015 2575

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/or90-97
shells of walnuts, or compositions mentioned
components with seeds berries)
aminecontaining additiverest

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.



 

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cl, tbl, 2 ex

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1 tbl

Priming composition // 2322467

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5 tbl

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2 tbl, 16 ex

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1 tbl, 2 ex

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Rust transformer // 2286999

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EFFECT: improved and valuable properties of coating.

1 tbl

FIELD: chemistry.

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8 cl, 4 tbl

FIELD: production processes.

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3 cl, 1 dwg

FIELD: chemistry.

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3 cl, 2 tbl, 15 ex

FIELD: chemistry.

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.

4 tbl

FIELD: chemistry.

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.

4 tbl

FIELD: chemistry.

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

FIELD: chemistry.

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

FIELD: chemistry.

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

Mastic // 2368637

FIELD: construction.

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

FIELD: construction.

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

Heat protective dye // 2245350

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

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