Polymer binding agent for polymer concrete
SUBSTANCE: polymer binding agent contains polyester resin based on polyethyleneglycol maleate phthalate, a hardening agent - cobalt naphthenate, and as a hardening initiating agent - methylethylketone peroxide in a dimethyl phtalate solution, at the following component ratio (wt %): polyester resin based on polyethyleneglycol maleate phthalate 95.7-97.48, cobalt naphthenate 0.75-1.75, methylethylketone peroxide in dimethyl phtalate is the rest.
EFFECT: increasing strength properties of a polymer binding agent and polymer concretes on its basis.
The invention relates to the construction materials industry, in particular the production of polymer binders for the manufacture of polymer concrete.
Known mineral solution comprising a polyester binder, curing system, mineral filler, and the filler (Solomatov Century And. "Polymer concretes and,". - M.: stroiizdat, 1967, S. 86-88).
The closest technical solution is a polymeric binder containing as a binder an unsaturated polyester resin based polietilenglikolmonostearat, the hardening accelerator is cobalt naphthenate, initiator curing - hydroponics cumene, additive, oxal (SU # 1740389, IPC C08L 67/06, SC 5/00, WV 27/04, publ. 15.06.1992).
The technical result is to increase the strength properties of the polymer binder and polymer concretes based on it.
The invention consists in that the polymeric binder for the polymer contains a polyester resin-based polietilenglikolmonostearat, the hardening accelerator is cobalt naphthenate, and as a curing initiator methyl ethyl ketone peroxide in dimethylphthalate density 1,180 g/cm3when the following ratio of components (mass. %):
|polietilenglikolya is thalatha||95,7-97,48|
|the cobalt naphthenate||0.75 to about 1.75|
|Methyl ethyl ketone peroxide in dimethylphthalate||rest|
Polyester resin based polietilenglikolmonostearat brand MO-609-21M (GOST 27952-88) is a clear liquid from light brown to dark brown, without mechanical impurities, the viscosity at 20°C VZ-246 is 20-32 C density at 23°C is equal to 1,165-1,180 g/cm3.
The setting accelerator NK-2 - cobalt naphthenate (TU 2494-002-05015213-2006) - liquid from pink to dark purple color, without mechanical impurities, with the contents of cobalt 1,2-1,5%.
The curing initiator is methyl ethyl ketone peroxide in dimethylphthalate the following composition, %: methylethylketone 30-37, methyl ethyl ketone 1-5, dimethylphthalate 55-70 and water 1-3 with the following structural formula:
Density at 20°C - 1,180 g/cm3viscosity at 20°C 24 MPa·s (ButanoxRM-50 VR).
As fine and coarse aggregate in the manufacture of concretes used ground quartz sand Smolenskoe deposits of the Republic of Mordovia with fineness modulus Mkr=1.4 and granite gravel fraction 5-10 mm>
The specified binder is prepared in the following sequence of operations: operating the mixer gradually introduce the required amount of polyester resin on the basis of polietilenglikolmonostearat, methyl ethyl ketone peroxide in dimethylphthalate density equal to 1,180 g/cm3,and cobalt naphthenate and mix thoroughly. The prepared composition is placed in a form. The next day ready-made samples extracted from forms and thermoablative at a temperature of 80°C for 6 hours.
Testing hardened binder and polymer based produce, respectively, for samples of size 1×1×3 cm and 4×4×16 see tables 1 and 2 shows the compositions of binder and polymer concrete based on it and their physico-mechanical parameters.
From comparison of the binder and the polymer prepared to offer and known mixtures, it is necessary that the proposed composition of the polyester binder is more effective: increase physical and mechanical properties (compressive strength, bending modulus of elasticity).
|Components||The content of components in the compositions, %|
|The proposed formulations varuser the||The composition of the polymer with the proposed astringent|
|1||2||3||4||5||the placeholder||binder||the placeholder|
|Polyester resin-based polietilenglikolmonostearat||98,31||95,7||97,02||97,48||96,19||68||27,2||12,89|
|Methyl ethyl ketone peroxide, in solution dimethylphthalate||0,94||2,6||1,77||1,77||2,6||-||0,51||-|
|The cobalt naphthenate||0,75||1,7||1,21||0,75||1,21||7||0,42||3,57|
|G is draperies cumene||-||-||-||-||-||-||-||5|
|Quartz sand with fineness modulus Mkr=1,4||-||-||-||-||-||-||28,9||28,6|
|Granite gravel fraction 5-10 mm||-||-||-||-||-||-||42,1||42,8|
|Components||The performance properties of the compositions|
|The proposed composition of binder||The composition of the polymer with the proposed astringent||Known compounds|
|The limit of compressive strength, MPa||138||160||166||155||131||70||60||50|
|The tensile strength in bending, MPa||75||107||111||96||93||40||35||30|
|Mo is ul of elasticity, MPa||1138||1460||1465||1479||1165||3080||1150||2800|
Polymer binder for polymer comprising a polyester resin-based polietilenglikolmonostearat, the hardening accelerator is cobalt naphthenate and a curing initiator, characterized in that as a curing initiator contains methyl ethyl ketone peroxide in dimethylphthalate density 1,180 g/cm3in the following ratio of components, wt.%:
|The cobalt naphthenate||0.75 to about 1.75|
|Methyl ethyl ketone peroxide in dimethylphthalate||rest|
SUBSTANCE: curable body repair material contains a curable polymer resin and a plurality of hollow elements. The curable body repair contains less than 3% by number of hollow elements having a diameter greater than 80 mcm or greater than 70 mcm or greater than 60 mcm. The body repair method involves applying the curable compound, curing said compound and sanding the solid body repair material to expose the cavities of the hollow elements in the solid material.
EFFECT: improved properties of the compound.
19 cl, 5 tbl, 15 ex
SUBSTANCE: composition contains a radiation-curable olibomer, having glass transition temperature Tg and/or melting point Tm lower than 30°C. The radiation-curable oligomer is obtained through reactionof one or more carboxyl functional polyesters with one or more monoepoxides modified with a (meth)acrylic compound, and/or one or more polyepoxides and one or more α, β-unsaturated carboxylic acids.
EFFECT: obtaining coating compositions, having good chemical resistance, solvent resistance, scratch resistance and surface hardness coupled with improved flexibility, adhesion and scratching during flexure and fast deformation, improved corrosion resistance and improved heat resistance and good electrical insulation properties.
12 cl, 2 tbl, 29 ex
SUBSTANCE: hardening composition is obtained by selecting (i) a chemically active carrier from polyesters, epoxides and alkoxylates which do not contain styrene, or (ii) a chemically inactive carrier from phthalate and benzoate plasticisers, and short-chain saturated polyesters. Further, a peroxide catalyst is selected from ketone peroxides, cumyl hydroperoxides, dibenzoyl peroxides, peroxy esters, perox yketals and peroxy dicarbonates. Thickened and volumising agent - microspheres are then added and the carrier, catalyst and microspheres are mixed. Using said thickened hardening composition, a two-component thermo-reactive polyester resin is obtained.
EFFECT: invention enables to obtain hardening compositions which, at room temperature, remain stable for more than one year.
20 cl, 10 tbl, 7 ex
SUBSTANCE: at the first step (a) of the method of preparing fire-resistant binder, a hardener is added to liquid epoxy resin, having temperature not higher than approximately 30°C. At the second step (b), copper nanoparticles are added to the obtained mixture At the third step (c) the mixture is mixed with the added copper nanoparticles to obtain a stable suspension. At the fourth step (d) the obtained suspension is added to pre-accelerated cold-setting vinyl ether resin. Finally, at the fifth step (e) the formed mixture is stirred to obtain fire-resistant binder.
EFFECT: high fire resistance of composite materials prepared using said binder, while preserving mechanical characteristics of such materials, their physical-mechanical properties and manufacturability when processing using an infusion technique.
18 cl, 3 ex, 2 tbl
FIELD: chemistry, technological processes.
SUBSTANCE: method contains following stages: a. performing first deposition of mixture of powder-like fillers, selected from group including marble, granite, rocks, quartz, which have different granulometric composition and diameter less than 5 mm, isophthalic or bisphenol complex polyester resin, additives, selected from group including thickener, construction glass fibre, paraffin, calcium carbonate and quartz, into moulding or form; b. catalyzing mixture of said first deposition; c. covering of obtained in said method surface by film from isophthalic or bisphenol complex polyester resin; d. performing second deposition of mixture of powder-like fillers, which have different granulometric composition and diameter less than 5 mm, isophthalic or bisphenol complex polyester resin, additives, selected from group including thickener, construction glass fibre, paraffin, calcium carbonate and quartz; e. covering of obtained after application of second deposition surface with layer of construction component, consisting of glass fibre and glass C, and resin; f.polymerisation of obtained by such method intermediate product; g. covering of obtained in said method surface by layer of white gel coating and second layer of paraffin black gel coating; h.polymerisation of obtained in such way product; i. removal of product from the form; j. thermal processing of product.
EFFECT: product which feels and looks practical, has long operating life in terms of strength and colour, preserving homogeneity of product surface when subjected to mechanical blow and abrasion.
15 cl, 1 ex
FIELD: polymer materials.
SUBSTANCE: invention relates to polymer compositions based on unsaturated polyester resins utilized to obtain filling, impregnation, and molding materials widely employed in manufacture of products in electronic and radio industries, in automotive industry, in construction, and other areas. Composition according to invention contains, wt parts: unsaturated polyester resin 100, epoxide dian resin 50-100, aliphatic amine 18-20, and hexachloro-p-xylene 2.0-2.5. If needed, composition may further contain filler up to 250 wt parts and/or special-destination additives up to 10 wt parts.
EFFECT: improved strength characteristics and enabled hardening in absence of toxic and explosive peroxide compounds.
3 cl, 3 tbl, 10 ex
FIELD: petrochemical industry; building industry; electronic industry; other industries; methods and the devices for realization of the heat-energy-mass exchange.
SUBSTANCE: the invention is pertaining to production of the hardening systems for unsaturated polyester resins - the styrene solutions of the polyestermaleinates widely used in construction, electronic and electrical industries and in other fields of engineering. The problem of the invention is development of the hardening system for the polyestermaleinate resins, which is free from the peroxide and hydroperoxide compounds and ensuring production of the product, which is not yielding on the properties to the product produced at hardening by the peroxide systems. The invention presents the hardening system containing (in mass %) carbon tetrachloride - (50-75) and the aliphatic and-or aromatic amine - (25-50) and, if it is necessity, cobalt naphthenate - (10-20 mass % in terms of the total mass of the system).
EFFECT: the invention ensures development of the hardening system for the polyestermaleinate resins free from the peroxide and hydroperoxide compounds and ensuring production of the product, which is not yielding on the properties to the product produced at hardening by the peroxide systems.
1 cl, 2 tbl, 10 ex
FIELD: composition of polymer concrete mixes on base of unsaturated polyester resins and solid fillers.
SUBSTANCE: proposed composite material is used for manufacture of thin-walled facing panels whose thickness does not exceed 10 mm. Proposed polymer concrete mix contains unsaturated polyester resin used as binder (15-25 mass-%), benzoyl peroxide used as polymerization accelerating agent (2.0 mass-%) and mineral filler which includes marble (10-35 mass-%); micro-particles of mineral filler are equal to 60±12 mcm; compound contains additionally aluminum hydroxide used as inorganic filler (45-55 mass-%); finely cut glass fiber used as reinforcing material (5-10 mass-%); average diameter of this fiber is equal to 13±1 mcm at average length of 14±1 mcm; technological additives (5-10 mass-%) in form of pigments and titanium dioxide.
EFFECT: reduced power requirements and time required for manufacture; enhanced physico-mechanical and thermo-physical characteristics.
FIELD: manufacture of heat-resistant articles from composite materials working at high temperatures, mechanical loads and high doses of ionizing radiation.
SUBSTANCE: proposed composite material possesses high heat resistance; it is made on base of unsaturated polyesters produced with the use of radiation technology. Heat-resistant composite materials and articles made from them are produced on base of copolymers obtained from unsaturated polyester resins (33.3-41.4 mass-%) and triallyl cyanurate or triallyl isocyanurate (58.6-66.7 mass-%); copolymers are produced by chemical radiation method due to radical copolymerization. Proposed binders for production of prepregs by chemical radiation method are selected from components possessing different sensitivity to ionizing radiation and polymerization ability. Articles made from proposed materials are used in aeronautical and space engineering, shipbuilding and mechanical engineering.
EFFECT: enhanced heat resistance.
16 cl, 6 tbl, 11 ex
FIELD: polymer materials.
SUBSTANCE: invention provides polymer composition for sealing functional joints of aerodrome and road cement-concrete carpets subjected to important loading effects and temperature fluctuations. Composition contains, wt %: unsaturated polyether composition having reactive terminal hydroxyl groups as polymeric binder 56-58, liquid tolylene diisocyanate as curing agent 7-9, dibutyl phthalate as plasticizer 0.8-1, ground marble calcite as filler 26-28, agidol-21 antioxidant 1-2, burnt lime as antipore agent 1.5-2, industrial-grade vaseline or lithol 1-2, and drying catalyst (SZh1P-35) 1.4-1.5, proposed composition containing no organic solvents.
EFFECT: improved performance characteristics of composition and reduced cost.
2 tbl, 4 ex
SUBSTANCE: invention relates to structural materials used for heat insulation of industrial equipment and buildings for various purposes. The peat-wood moulding mixture for making heat insulation and structural-heat insulation articles contains peat dispersed in an aqueous medium as binder, sawdust as aggregate and tempering water, treated for 20-60 s with a magnetic field with magnetic induction of 40 mT, the tempering water being water subjected to preliminary ionisation before treatment with the magnetic field, and the binder being high or low moor peat dispersed in an aqueous medium or a mixture of low and high moor peat dispersed in an aqueous medium, with the following ratio of components, wt %: said peat or said mixture 20.5-28.5, sawdust 61.0-73.0, tempering water 6.5-10.5.
EFFECT: low water absorption and heat conductivity.
SUBSTANCE: invention relates to compositions of cement-based crude mixtures used to produce heat-insulation construction materials characterised by high fire-resistance. The peat-polymer mixture contains three components, wt %: peat which is nano-modified with a suspension of polyvinyl acetate and cyclone dust from cleaning industrial air (dry polyvinyl acetate in amount of 4-6% of the mass of peat and dust - 2-3%) 25-35%, portland cement CEM-I-42.5 35-45, water 25-35.
EFFECT: invention improves strength properties with the same density and heat-conductivity, increases uniformity of the structure and longevity of the heat-insulation material.
SUBSTANCE: composition for making a monolithic thermoplate, as a substitute for a flexible reinforced primer interlayer or pre-stressed reinforced concrete slabs, contains hot-melt adhesive as binder, aggregate in form of quartz sand of the fraction 0.7…1.5 mm, gravel of the fraction 15…20 mm, crushed waste glass of the fraction 0.8…5 mm, class A-IV, A-V pre-stressed steel wastes of the fraction 18…20 cm, granular blast-furnace slag and/or crushed rocks in form of debris, with the following ratio of components in wt %: hot-melt adhesive - 36.0-43.0, quartz sand - 16.0-17.0, gravel - 16.0-18.0, crushed waste glass - 10.0-12.0, granular blast-furnace slag and/or debris - 14.0-15.0, pre-stressed steel wastes - 1.0-2.0.
EFFECT: improved physical and mechanical properties of the obtained thermoplate.
3 cl, 1 dwg, 3 ex
SUBSTANCE: method of producing a protective and decorative coating (verisons). The invention relates to construction and specifically to methods of protective and decorative finishing of surfaces of concrete and brick structures. The method of producing a protective and decorative coating according to the first version involves preparation of the surface and depositing a coating on said surface. The coating is formed from elements. The elements used are coloured glass deposited on the inner side and a hardened composition, with the following ratio of components, pts.wt: polyvinyl acetate dispersion with content of dry substance of 49-51% 5-10; alabaster 7-8, mixture of dioxane alcohols and their high-boiling ethers with open-cup flash-point of 130-140°C 0.5-1.0, di(alkylpolyethylene glycol)ether of phosphoric acid 0.1-0.2, water 4-8. An adhesive composition is deposited on the hardened surface of said composition of each element, with the following ratio of components in pts.wt: cement 3.2-3.35, quartz sand 3.6-3.8, dolomite powder 1.2-1.3, water 1.8-2.1. A second version of the method of producing a protective and decorative coating on the surface of building structures is described.
EFFECT: high adhesion strength, water resistance and resistance to sodium hypochlorite solution.
2 cl, 2 tbl, 16 ex
SUBSTANCE: complex additive for a concrete mix including cement and sand contains 50-96 wt % of glycerine and 4-50 wt % of polyacrylamide. The concrete mix includes cement, sand and a complex additive. The complex additive contains relative to the cement weight 0.1-0.6% of glycerine and 0.025-0.1% of polyacrylamide.
EFFECT: increased strength of concrete stone.
6 cl, 1 tbl
SUBSTANCE: invention relates to construction materials and can be used to finish concrete and plastered surfaces. The composition contains the following in wt %: liquid sodium glass of density 1.46 g/cm3 with modulus 2.8 - 3.51-4.3, talc - 26.6-29.8, ground chalk - 36.0-42.3, aqueous dispersion of lacroten polymer E-21 - 1.8-3.5, 4% sol of ortho-silicic acid with pH=3.0-4.0 - 24.1-28.1.
EFFECT: invention accelerates hardening of the composition.
2 tbl, 5 ex
SUBSTANCE: invention relates to a novel method of making articles in form of slabs, porous slabs, blocks made from a conglomerate consisting of pieces of stone. The method is based on the existing technology of compaction by means of vacuum compression and involves preparation of a mixture consisting of a granulate and binder which is an aqueous dispersion of an acrylic prepolymer. The granulate is selected from stone-like materials. The mixture also contains a finely dispersed inorganic aggregate. The mixture is deposited in form of a layer onto a substrate or inside a mould and is compacted via vacuum vibro-compression. Further, the binder which is present in the moulded article is hardened. At the step for compaction using vacuum vibro-compression, the article hardens in conditions which enable to prevent removal of water from the mixture due to evaporation. When making porous slabs, at the compacting step, the article hardens in conditions which enable to remove water from the mixture. When making blocks, the mixture is deposited only inside the mould. When using the method, blocks can also be made, which can then be sawed.
EFFECT: articles have high mechanical strength, resistance to UV radiation and are environmentally safe.
18 cl, 3 ex
SUBSTANCE: composition contains moist glass fibres, gypsum, polyacrylates dispersed in water and binding polymer. Using it, multi-layer gypsum items and materials are produced as reinforced with glass fibres. Gypsum boards are produced by alternation of glass mat layers with layers of gypsum/polymer suspension.
EFFECT: items are water-resistant, fire-resistant and have improved mechanical properties.
16 cl, 10 tbl, 3 ex
SUBSTANCE: invention relates to production of road construction materials and specifically to binding compositions based on organic binding substances, which can be used in building or repairing roads and aerodrome surfaces. The invention pertains to a complex structured bitumen-rubber binder for road surface, containing devulcanised rubber crumbs and organic binder - construction bitumen, as well as water treatment wastes from oil refineries - floatation oil sludge containing the following, wt %: 50-70 % organic component (including hydrocarbons: methane 75-85%; naphthene 10-20%; aromatic 3-10%); 50-30% inorganic component (including particle size: less than 10 mcm 50-65%; less than 20 mcm 80-85%; less than 100 mcm 95-99%; greater than 100 mcm less than 2%) with specific surface area of 880-920 m2/kg; with moisture of not more than 15-20% (in excess of organic and inorganic components given in the composition), with the following ratio of components, wt %: bitumen 82.5-92.5; rubber crumbs 2.5-7.5; floatation oil sludge 5-10.
EFFECT: longevity of binder with improved rheological characteristics, considerable reduction in cost owing to longer life of the road asphalt coating.
SUBSTANCE: raw mix contains the following components, wt %: domestic and industrial wastes of polyethylene 25-30, granulated blast-furnace slag with size of 1-3 mm 25-30, granulated blast-furnace slag with size of 0-1 mm 15-20, pit sand - waste of iron ore dressing - balance. Method includes laying raw mix in mould, its compaction and heating. Layer of mix heated below binder melt temperature is laid in mould, reinforcement net of high-strength threads is laid over, the second layer of mixture is applied and exposed to hot pressing.
EFFECT: reduced duration of sheets manufacturing, exclusion of carcinogenic substance - asbestos and expensive low-quality binder - cement from mix composition, substitution of deficit cement with domestic and industrial wastes of polyethylene, increased flexural strength.
2 cl, 1 tbl
SUBSTANCE: invention relates to a method of obtaining ampholytic surface-active substances on the basis of a protein-containing raw material and can be used in the process of production of foam-concrete and foam-concrete constructions. In the method of obtaining a foam-generator for the production of foam-concrete and foam-concrete constructions, including the hydrolysis of the protein-containing raw material in the presence of calcium hydroxide, calcium hydroxide is formed, when calcium oxide is introduced in a hydrolysed reaction mixture, the hydrolysis process is carried out in one stage in a reactor-hydrolyser, provided with high-speed stirrer and an external circular loop with a pump for 5-9 hours at a temperature of 110-132°C with the weight ratio of initial ingredients "feather wastes:water:calcium oxide", equal to 100 : (350-400) : (3.5-3.7), with pH of the lime-feather mass at the beginning of hydrolysis varying within the interval of 12.0-12.4, and at the end of hydrolysis in the interval of 7.5-7.7.
EFFECT: obtaining the foam-generator with high foam-generating properties, which are achieved both with the application of moderately mineralised water and alkaline highly hard lime water.
1 ex, 1 tbl