Epoxy binder, prepreg based thereon and article made therefrom. RU patent 2513916.

IPC classes for russian patent Epoxy binder, prepreg based thereon and article made therefrom. RU patent 2513916. (RU 2513916):

C08L63/00 - Compositions of epoxy resins; Compositions of derivatives of epoxy resins

C08K5/41 - Compounds containing sulfur bound to oxygen

C08J5/24 - Impregnating materials with prepolymers which can be polymerised ; in situ, e.g. manufacture of prepregs

Another patents in same IPC classes:

Composition of epoxy resin, pre-preg and fibre-reinforced composite material / 2513626
Invention relates to epoxy resin compositions and can be applied as matrix resin of fibre-reinforced composite material. Composition contains epoxy resin [A], amine-based hardening agent [B] and block-copolymer [C]. Epoxy resin [A] contains components [Aa] - epoxy resin of biphenyl type, which has biphenyl structure and [Ab]. Component [Ab] contains components [Ab1'] - diglycidyl aniline derivative, [Ab2] - liquid epoxy resin of bisphenol type and [Ab3] - solid epoxy resin of bisphenol type. Component [B] is dicyandiamide. Block-copolymer [C], at least, one block-copolymer, selected from group consisting of S-B-M, B-M and M-B-M. Block M represents block, consisting of polymethyl methacrylate homopolymer, or copolymer, containing, at least, 50 wt % of methyl methacrylate. Block B represents block, which does not mix with block M and has temperature of vitrifying 20°C or lower. Block S represents block, which does not mix with blocks B and M and has temperature of vitrifying higher than temperature of vitrifying of block B.

Composition of resin with chain mechanism of hardening and composite material re-enforced with fibres / 2511450
Claimed invention relates to composition of resin with chain mechanism of hardening for composite material re-enforced with fibres. Described are versions of composition of resin with chain mechanism of hardening for obtaining composite material re-enforced with fibres, which contains: alicyclic epoxide compound (A), which contains two cyclohexene oxides in a molecule; and modified epoxy resin (B) of bisphenol type A, represented by formula (1) given below, where in modified epoxy resin (B) of bisphenol type A each R1 represents -CH(CH3)-, and R2 represents oxyalkylene group, and content of alicyclic epoxy compound (A) constitutes from 25 to 90 wt %, where total amount of component (A) and component (B) is taken as 100 wt %: [Chemical compound 1]

Semiconductor band with improved chemical resistance / 2510649
Invention relates to production of semiconductive materials used for corona shielding of high-voltage windings of electrical machines. The invention suggests semiconductive band containing fibrous substrate with semiconductive compound applied on it including (wt %): chlorosulphonated polyethylene (6.5-12.0), epoxy resin (0.5-3.0), curing agent (0.01-0.2), current-carrying filler (6.0-40.0) and organic solvent (remains).

Semiconductor band with improved elasticity / 2510648
Invention relates to production of semiconductive materials used for corona shielding of high-voltage windings of electrical machines. The invention suggests semiconductive band containing fibrous substrate with semiconductive compound applied on its top including current-conductive filler and polymer binding agent made of chlorosulphonated polyethylene mixed up with polyfucntional and multifunctional epoxy resins, anhydride and aerosil.

Composite reinforcements / 2509653
Invention relates to reinforcements, particularly, to alternate-profile reinforcements for production of articles from concrete and aerated concrete by hot moulding at simultaneous effects of aggressive media. Composite reinforcements comprise bar with winding composed by fibrous filler impregnated with epoxy resin-based polymer binder and hardener. Proposed composition contains the following substances, in wt %: fibrous hardener - 60-80 and binder - 20-40 where binder comprises the following components in wt %: epoxy resin - 50-60, amine hardener - 40-50. Said resin comprises the following components, in wt %: diane epoxy resin - 47-80, modifier based on polyesters including glycidyl groups - 10-25, component produced by epoxidation of hydroxyphenylene oligomer from alkyl resorcinol - 10-28%.

Polymer composition / 2507227
Invention relates to high-strength polymer compositions intended for making articles from composite materials, applying anticorrosive and decorative coatings with high resistance to weather and ultraviolet radiation. The polymer composition contains an adduct of amines with epoxy resins, an active diluent and a product of reacting di- or polyepoxy compounds with nitrogen-containing components, where the nitrogen-containing component used is a mixture consisting of a compound having in its structure one or more tertiary nitrogen atoms and simultaneously one or more functional groups -NCO, -OH, -CH2OH and a compound containing, along with a tertiary nitrogen atom, a primary or secondary amino group, and the reaction is carried out by mixing at temperature ranging from 40°C to 220°C in 10-150 minutes.

Method of producing epoxy resin curing agents / 2507226
Invention relates to production of epoxy resin curing agents used to prepare epoxy compositions with improved processing properties and minimal toxicity, which enable to produce composite materials with high strength, thermophysical and dielectric properties. The method of producing epoxy resin curing agents involves reacting a liquid or molten aromatic, aliphatic, cycloaliphatic or alkylene aromatic di- or polyamine (B) with cycloaliphatic or aliphatic-cycloaliphatic dioxides (A) with excess amine, after which acrylate (V) and amino alcohol (G) are added to the obtained mixture and the reaction mixture is stirred for 20-180 minutes at T=30-180°C.

Polymer composition / 2506291
Present invention relates to production of polymer compositions based on epoxy resins and modified amine curing agents, intended for producing high-strength composite materials with high resistance to thermal deformation. Described is a polymer composition based on epoxy resin, active epoxy diluents and nitrogen-containing curing agents intended for producing high-strength composite materials with high resistance to thermal deformation, characterised by that the curing agent is a product of reaction of an amine component with monocarboxylic acids, using as the amine component a mixture consisting of a primary aromatic amine or a mixture of aromatic amines (A), a secondary aliphatic amino alcohol (B) and a tertiary aliphatic amino alcohol (C) in weight ratio A:B:C from 98:0.2:1.8 to 80:5:15, and a monocarboxylic acid (D) is added in form of a 25-80% solution to the monoatomic aliphatic or aromatic alcohol, or ester thereof with a mono- or dicarboxylic acid, in ratio (A+B+C):D from 90:10 to 60:40 per 100% acid, followed by reaction by mixing in a reactor at temperature ranging from 50 to 130°C for 20 to 120 minutes and mixer speed of 100 to 3000 rpm, and additionally contains a thickener, a pigment or a dye, wherein the composition contains the following in pts.wt: epoxy resin - 100, active epoxy diluent - 5-130, curing agent - 15-110, thickener - 5-50, pigment and dye - 0.5-25.

Epoxy binder for reinforced plastic / 2505568
Binder contains the following, pts.wt: 70-90 polyglycidyl derivative of low-molecular weight phenol-formaldehyde novolac, 10-30 epoxy-diane resin, 3-6 boron trifluoride and benzylamine complex, 60-80 2,2'-bis-(3,5-di-bromo-4-hydroxyphenyl)-propane, 1-3 bis-[3-(3,5-di-tert-butyl-4-oxyphenyl) propyl]phthalate and 90-160 alcohol-acetone mixture with weight ratio of alcohol to acetone of 1:1.

Press material for sealing integrated microcircuits / 2505567
Press material for sealing integrated microcircuits contains binder - o-cresol novolac epoxy resin with softening point of 50-65°C, a curing agent - cyan-acetic ester and diglycidyl ether of 1,4-butanediol, an accelerating atent - N1-(3,4-dichlorophenyl)-N,N-dimethylurea, filler - ground quartz, glycidyloxypropyltrimethoxy silane finishing agent, lubricant - oxidised polyethylene wax.

Stabilized elastomer composition, stabilizer, elastomer stabilization process, and a method for preventing decoloration of substrates / 2261258
Invention relates to compositions containing (i) elastomer sensitive to oxidative, thermal, dynamic, or light- and/or ozone-induced degradation and (ii), as stabilizer, at least one compound belonging to type of S-substituted 4-(3-mercaptosulfinyl-2-hydroxypropylamino)diphenylamine, as well as to a method for preventing decoloration of substrates coming into contact with elastomers and to a method for stabilizing elastomers consisting in introducing into the latter or coating them with at least one compound belonging to type of S-substituted 4-(3-mercaptosulfinyl-2-hydroxypropylamino)diphenylamine. Composition of stabilized elastomer comprises (a) natural-origin or synthetic elastomer sensitive to degradation as mentioned above and (b) stabilizer, in particular at least one compound having following general formula 1: [R-S(=O)mCH2-CH(OH)-CH2]n-N(R1)2-n-R2 (1), where R represents C4-C20-alkyl, hydroxy-substituted C4-C20-alkyl, phenyl, benzyl, α-methylbenzyl, α,α-dimethykbenzyl, cyclohexyl, or -(CH2)qCOOR3, and, when m=0, R can be and, when n=1 and R4 is hydrogen, can also be R2-R1N-CH2-CH(OH)-CH2-S(=O)m(CH2)x- or R2-R1N-CH2-CH(OH)-CH2-S(=O)m-CH2-CH2-(O-CH2-CH2)y-; R1 represents hydrogen, cyclohexyl, or C3-C12-alkyl; R2 represents group ; R3 C1-C18-alkyl; R4 hydrogen or CH2-CH(OH)-CH2-S(=O)m-R; X C1-C8-alkyl; Y C1-C8-alkyl; m=0 or 1, n=1 or 2, q=1 or q=2-6, and y=1 or 2. Compounds of formula 1 stabilize elastomers, especially low-colored ones, prevent oxidative, thermal, dynamic, or light- and/or ozone-induced degradation thereof, and prevent decoloration of substrates coming into contact with elastomers.

Epoxy resins and composite materials exhibiting improved combustion properties / 2494126
Invention relates to epoxy resin-based composite materials. The epoxy resin-based composition contains: a) 50-70 wt % of a component which is an epoxy resin containing one or more epoxy resins; b) 15-35 wt % of a mixture of thermoplastic materials containing polyetherimide and polyamideimide, where the weight ratio of polyetherimide to polyamideimide ranges from 5:1 to 1:5; and c) 5-25 wt % of a component which is a curing agent, where the epoxy resin composition has sulphur dioxide release level below 100 ppm. Also disclosed is a method of preparing a composition, a component made from an uncured composite, a component made from the composite, where a matrix of the epoxy resin is cured, and a method of producing a prepreg.

Perfected prepreg / 2491167
Invention relates to perfected prepregs and hardened laminates. Proposed prepreg comprises fiber matrix with multiple areas deposited thereat and lifted by, at least, five micrometers above said matrix. Lifted areas are formed by printing with deposition of materials by hardening by means of the process other than thermal treatment.

Improved epoxy systems for composite materials / 2487148
Composition contains a system of epoxy resin which includes a reaction product of epoxy resin and a curing agent. The curing agent contains a first compound with an amino group of formula R1R2R3N, where R1 and R2 are independently an aliphatic or cyclic organic functional group and R3 is an alkyl group with 2-18 carbon atoms in the backbone chain; and a second compound with an amino group, with one or more primary or secondary amino groups, with stoichiometric ratio of -NH bonds of the second compound with an amino group to epoxy groups of the epoxy resin component of about 1:20-19:20.

Method of making prepreg / 2484956
Invention relates to method of making prepreg used in production of multilayer polymer composites for aerospace engineering, car and ship building, etc, wherein heat protection materials with high heat resistance properties. Proposed method comprises placing workpiece into sealed container, evacuation of sealed container with workpiece, reiterated impregnation of workpiece in vacuum with polymer binder with subsequent reiterated drying. Pre-impregnation is performed before evacuation by dipping siliceous or siliceous-kapron workpiece in binder based on phenol-formaldehyde resin with content of solvent making 50-60 wt %. Note here that pre-impregnation and impregnation in vacuum are carried in fractions with total amount equal to design amount of binder while reiterated drying is performed at vacuum at P=0.08-0.1 MPa after every impregnation with exposure at t=25±10°C for 2-2.5 hours while final drying is performed at overpressure P=0.25-0.3 MPa with exposure at t=25±10°C for 12-13 h.

Laminar material / 2480339
Invention relates to multilayer article. Proposed material comprises: at least, one metal plate and, at least, one composite to adhere to one surface of said metal plate. Composite comprises reinforcing material composed of woven or nonwoven material located on metal plate surface and resin compound for bonding reinforcing material with metal plate on hardening said resin compound. Reinforcing material may represent: nylon fiber, polyester fiber, nylon/polyester multicomponent fiber, nylon/viscose multicomponent rayon, polyester/viscose multicomponent rayon, armamide rayon, carbon fiber, glass finer and metal fiber, or mixes thereof. Resin may represent: epoxy resin, resin modified by butadiene and acrylonitrile copolymer with end carboxyl groups (CTBN/urethane/epoxy polyurethane, acryl and unsaturated polyester, or mixes thereof.

Cold curing epoxide composition / 2479601
Epoxide composition can be used as a saturating composition and an adhesive composition and for protective coatings of metal and concrete surfaces. The cold curing epoxide composition contains an epoxide base which includes an epoxy-diane resin having molecular weight of 340-540, an epoxy-urethane resin and a curing system which contains an aromatic amine and an imidazole-type heterocyclic compound.

Impregnation with hybrid resins / 2475506
Invention relates to a hybrid resin which is particularly suitable for impregnating paper sheets. The hybrid resin contains: (i) melamine urea formaldehyde resin and (ii) unsaturated polyester resin and is used as an adhesive system or an impregnating resin. The invention also relates to use of the hybrid resin to impregnate materials in form of sheets made from fibrous material, to material impregnated with the hybrid resin and to a multilayer board which is coated on one side by a resin-soaked paper layer and on the opposite side by a resin-soaked stabilising layer, wherein the paper layer and/or stabilising layer is impregnated with the hybrid resin.

Epoxy binder, prepreg based thereon and article made therefrom / 2471829
Epoxide binder contains the following in pts.wt: epoxy-novolak resin 85-100, nitrogen-containing epoxy resin 85-100, a hardener, which is a product of reaction of 4,4'-diaminodiphenylsulpone and carboxylated nanotubes in weight ratio of 100:(1-10) 85-90, and a product of condensation of glycols with dimethyl terephthalate 5-20. The prepreg contains said epoxy binder and fibre filler - carbon bundles, tape and fabric, with the following ratio of components, wt %: said epoxy binder 30-50, said fibre filler 50-70.

FIELD: chemistry.

SUBSTANCE: invention relates to preparation of epoxy binder for polymer composite building materials based on carbon fibre filler, which can be used in aviation, space, car and shipbuilding industries, as well as other industries. The epoxy binder contains, wt %: polyfunctional epoxy resin 10.0-50.0, diglycidyl ether of resorcinol hydroxyl groups 10.0-50.0, polyisocyanate 0.1-3.5, curing agent 4,4'-diaminodiphenylsulphone 17.0-30.0, polyarylsulphone 5.0-30.0. Disclosed is a prepreg containing said epoxy binder and fibre filler in the following ratio, wt %: epoxy binder 30.0-50.0, carbon fibre filler 50.0-70.0. Articles are made by moulding the prepreg.

EFFECT: invention enables to produce high-strength articles with improved mechanical properties, which are resistant to unfavourable operational factors, thermal and moisture-induced ageing and capable of maintaining their properties after such action.

8 cl, 3 tbl,12 ex

The invention relates to the field of creation of epoxy binder for polymer composite materials (PCM), used for production of heavy-loaded constructions based on fibrous carbon fillers that can be used in aviation, space, automobile, ship-building industry and other areas of technology.

Known epoxy composition for reinforced plastics, including epoxy - multifunctional epoxy Novolac and digitally broadcast resorcinol (modifier), hardener 4,4'-diaminodiphenylmethane (A.S. The USSR №781205).

Prepreg received by impregnation of fabrics, T-10-60 (GOST 19170-73) specified middleware mortar technology. The product obtained by vacuum-autoclave processing of prepreg at the following mode: temperature 120±5C - 2 hours (vacuum 0.1 MPa)temperature 120±5 C - 3 hours (vacuum 0,1 MPa, pressure 0.6 MPa)temperature 140±5C - 2 hours (vacuum 0.1 MPa, pressure 0.6 MPa)temperature 160±5 C - 10 hours (vacuum 0.1 MPa, pressure 0.6 MPa)temperature 180±5C - 2 hours (vacuum 0.1 MPa, pressure 0.6 MPa).

The main disadvantages include low viscosity obtained composition, which makes it not technology for production of prepregs on a technology; long-lasting and energy-intensive curing cycle (up to 20 hours) at a temperature of up to 180 C and low strength properties of polymer composite materials and products made on the basis of the composition, after exposure to heat and humidity.

Known epoxy a composition for the RMB, including a mixture of epoxy Dianov resin and multifunctional epoxy resins, selected from a group-N,N-teatralizovannogo derived 3,3-dichloro-4,4-diaminodiphenylmethane, polyglycidyl-derived molecular phenol the novolak and triglycerides of paraaminobensana; modifier - Polyaris-sulfon; hardener dicyandiamide (RF patent №2230764).

Prepreg is obtained by applying the specified composition at temperatures from 100 to 140 degrees C in carbon tape ALOR-0,1 P (GOST 28006-88). Prepreg contains 30% by weight epoxy compositions and 70% by weight carbon filler. The product is produced by the method of vacuum-autoclave processing of prepreg at a temperature of 180±5 C for 3 h (vacuum 0.1 MPa, pressure 0.8 MPa).

The disadvantages of composition is its high viscosity, considerably complicating the process. The curing process is accompanied by strong exothermic effect, leading to self heating composition, and therefore the curing process can only be made in thin layers, which significantly limits its application in thick-walled large-size products and structures.

Most close analog adopted for the prototype is:

- epoxy binder, including multifunctional glycodelin epoxy resin, epoxy resin-based bisphenol a (epoxy Dianov resin), polymethylenepolyphenylene-izocianat, hardener 4,4'-diaminodiphenylmethane, thermoplastic resin - polyethersulfone characterized by the concentration of epoxy groups from 0.67 to 1,51 EQ./kg, containing from 70 to 95% by weight polyfunctional getidelement epoxy resin of the total mass of the mixture getidelement epoxy resin and epoxy resin on the basis of bisphenol a and 10 to 50 wt.% thermoplastic resins from the entire composition;

- prepreg, including specified binder, carbon cloth or unidirectional carbon fiber containing epoxy binder from 15 to 60 wt.%;

- the product obtained by the method of vacuum-autoclave processing of prepreg at a temperature of 180±5 C in for 2 h (vacuum 0.1 MPa, pressure 0,5 MPa) (patent EP №2311892).

The disadvantage of the prototype are reduced strength properties of products made of prepreg based on epoxy binder (compressive strength and interlaminar shear), and not enough high degree of conservation thermomechanical characteristics after long exposure to operational factors.

The object of the invention is the creation of epoxy binder, allowing to receive the prepreg and articles thereof with high strength characteristics (high durability at compression and interlaminar shear), resistant to unfavorable operating factors and heat and humidity aging, can save thermo-mechanical properties after these impacts.

To solve this problem is proposed epoxy binder, including epoxy poly resin and epoxy bifunktionalno resin, polyisocyanate, hardener - 4,4'-diaminodiphenylmethane and thermoplastic resin, wherein as bifunktionalno resin binder contains diglitseridy broadcast resorcinol with hydroxyl groups, and as thermoplastic resin use polarisation in the following ratio of components, mass%:

multifunctional epoxy resin

10,0-50,0

diglitseridy broadcast resorcinol

with hydroxyl groups

10,0-50,0

the polyisocyanate

0,1-3,5

hardener 4,4'-diaminodiphenylmethane

17,0-30,0

polarisation

5,0-30,0

As polyfunctional resin use the same epoxy resin, selected from the following groups: modified epoxyamine resin, resin on the basis of phenols, goldenprofitsis aromatic amines.

As thermoplastic resin use polarisation fenolftaleina, having in its structure fenolftaleina links from 30 to 90% or their mixtures.

As bifunktionalno resin can optionally use epoxy Dianov resin or a mixture of epoxy Dianov resins with molecular weight from 340 to 540 5,0-30,0% by weight from the whole composition.

A prepreg, including specified epoxy binder and carbon fibrous filler in the following ratio of components, mass%:

epoxy binder

30,0-50,0

carbon fibrous filler

50,0-70,0

As carbon fibrous filler used harness, cloth, tape.

The product is accomplished by the formation of the specified pre-preg.

It is established that diglitseridy broadcast resorcinol with hydroxyl groups, due to its molecular structure, containing a large number articulated oxygen bridges that can form elastic polymer network, bringing in its molecular structure of moving parts and thus providing the opportunity of fast relaxation of internal stresses binder. This leads to the formation of high-strength epoxy compositions, materials and products on its basis, characterized by elevated mechanical properties (strength at compression and interlaminar shear).

In addition, the use of the invention as thermoplastic resins more heat resistant and rigid polarisation instead of polyethersulfone, also provides an opportunity to significantly increase the strength and thermo-mechanical characteristics binder, materials and products based on it. While in epoxy system, polarisation during curing is not integrated into the polymer structure, and forms a separate phase. At loading of materials and products, made on the basis of the proposed epoxy binder containing polarisation growing cracks, meeting in the matrix plastic phase of thermoplastic, slow down, and for their further advancement requires more energy, which ultimately increases the overall cost of the energy needed for the complete destruction of the material. Introduction of polarisation in epoxy binder helps to increase its thermo-mechanical characteristics, strength of materials and products based on it when you shift when quasistatic velocity loading and significantly increases their strength at compression.

Curing developed epoxy connecting the stoichiometric quantity of hardener by polycondensation mechanism, unlike its prototype, leads to the formation of a more uniform polymer structure with involvement in the chemical interaction of all reactive epoxy groups and allows to achieve a high level stitching that promotes the formation resistant to heat and humidity influence of polymer binder, providing high resistance wetted material and products from it.

The additional use of low-viscosity epoxy Dianov resin or a mixture of epoxy resins with Dianov molecular weight 340-540 allows you to adjust the rheological characteristics of the developed spanning the change of the content used multifunctional epoxy resins and allows optimization of technological binding characteristics (viscosity and stickiness) for Paraguay technology.

As a multifunctional epoxy resin in the invention can be used: polyfunctional modified epoxyamine resin EPOX-01H (TU 2225-014-33452160-2004), poly resin on the basis of phenols grades up-643, EN-6 (TU 2225-605-11131395-2003), ETF (THE 2225-316-09201208-94) or goldenprofitsis aromatic amines grades up-610 (TU 2225-606-11131395-2003), the EDMS (TU 2225-607-11131395-2003), and other

As dipyridamole ether of resorcinol, containing in its structure hydroxyl functional groups can be used, for example, resin grades up-652 (TU 6-05-241-120-82), up-67 (TU 6-05-241-227-80), up-637 (TU 6-05-241-194-79), and other

As epoxy Dianov resin use tar low viscosity with molecular weight from 340 to 540, such as epoxy Dianov resin grades ED-22, ED-20 AND ED-16 (GOST 10587-93) or their mixtures. As MDI can be used, for example, Arizon ML (TU 113-03-29-7-82), polyisocyanate PIZ (TU 113-03-38-106-90), hexamethylenediisocyanate (TU 113-03-38-104-90) or other

As thermoplastic resins can be used polarisation fenolftaleina containing in its structure fenolftaleina links from 30%to 90%, for example, marks PSF-30 (TU 2224-455-0020349-2006), PSF-70, PSF-90 (TU 2226-480-00209349-2010) or their mixtures.

As a hardener use 4,4'-diaminodiphenylmethane (TU 6-14-17-95).

As carbon fibrous filler used harness brand HTS40 12K a Japanese firm Toho the Heat, fabric UT-900 (THE 916-155-05763346-95) or tape ALOR-P (GOST 28006-88).

Examples of the implementation of

Example 1.

Preparation of epoxy binder.

In a clean and dry reactor load 37 wt.% multifunctional epoxy-amine resin up-610, 25 wt.% bifunktionalno epoxyresins tar up-652. Include mixer, stirring, heated to a temperature of 100 degrees C. Then with stirring to mix resins add 0.5% MDI brand Arizon ML and sustain the reaction mixture at 100 degrees C during 2 hours

The temperature of the reaction mixture was promoted to 150 C, downloaded the small portions 12 wt.% polarisation brand PSF-70 and under stirring kept within 2 hours

Then downloaded the small portions stoichiometric amount of hardener 4,4'-diaminodiphenylmethane (26,0%Mas.) by stirring up full combination.

Getting pre-preg.

Prepreg was obtained by applying the 30% of epoxy resin at a temperature of 70-80 degrees C in harness brand Toho the Heat HTS40 12K a in the amount of 70%.

By the method of vacuum-autoclave processing of prepreg at a temperature of 180±5 C for 3 hours (vacuum 0.1 MPa, pressure of 0.3-0.7 MPa) received konstruktivnoye samples of the type slat.

Technology of production of epoxy binder and prepregs on the examples 2-12 used analogously to example 1.

Examples 3, 5, 9, 12 in epoxy binder is added epoxy Dianov resin or a mixture of epoxy Dianov resins.

Prepregs for examples 2, 3, 4 were made using guledani brand UT-900, and for examples 8, 9, 10, 12 - using plenty brand ALOR-P.

On the basis of made of prepregs on the examples 2-12 on technology, similar to example 1, by means of vacuum-autoclave processing of prepreg made konstruktivnoye samples of products: for example, 2 - type flaps, for example 3 - type rudder, for example 4 - type fold chassis, for example 5 - type panel wing, for example 6 - type panels of Kiel, for example 7 - type panel, centre-section, for example 8 - type of skin of the fuselage, for example 9 - type of covering the rudder, for example, a 10 - item type Aileron, for example 11 - item type elevon, for example 12 - type engine.

The structures binding on the invention and the prototype is shown in table 1, the composition of prepreg - in table 2 properties of the products according to the invention and the prototype in table 3.

Comparative data from table 3 show that the developed epoxy binder provides advantages in comparison with the prototype: the proposed composition ensures high strength properties of products (compressive strength 1050-1290 MPa and interlaminar shear 94-109 MPa), 10-28% exceeds the strength of the material of the prototype. Thermo-mechanical characteristics of materials (glass transition temperature Tg wet ) on the basis developed binding after the 14 - day teplovlazhnostnoj effects (temperature of 70 C, relative humidity 85%) are in the range 175-191 C (the material of the prototype Tg wet =169 C), and after 2 months heat and humidity of aging are in the range 153-161 C (the material of the prototype Tg wet =113 degrees C). There is a decrease of thermo-mechanical properties after heat and humidity exposure as for material on the basis of binding the prototype and for material on the basis of the developed binder. In the invention-the prototype of the selected method of assessment of level changes thermo-mechanical characteristics of the material on the basis of binding after the 14-day teplovlazhnostnoj impact (T=70 C, Phi=85%). This approach cannot be an objective assessment of the influence of heat and humidity aging to change the properties of the investigated materials, as their full blagodarenie and deterioration is observed for a longer exposure time - not less than 1 month (GOST 4650-80 "Plastic. Methods for determination of water absorption", GOST 9.707-81 "unified system of protection against corrosion and aging. The polymer materials. Accelerated tests on climate aging").

The characteristics of the materials on the basis of the developed after connecting heat and humidity impacts within 2 months confirm the possibility of its use for creation of articles, suitable for long-term operating temperatures up to 120 C, at the same time, thermo-mechanical characteristics of materials based binder-prototype because of their significant reduction (Tg wet =113 C) can not guarantee successful products operation at specified temperatures.

Developed composition, prepregs, made on its basis, enable the creation of high-strength products with enhanced mechanical properties (tensile strength at compression and interlaminar shear), resistant to unfavorable operational factors - heat and humidity aging well and able to keep its properties after such loads.

Table 2

Name components

The composition of the examples, wt.%

Prototype

1 2 3 4 5 6 7 8 9 10 11 12 Binder 30 32 46 41 48 39 44 37 33 35 34 50 43

Carbon harness Toho the Heat NTA gear E13

- - - - - - - - - - - - 57

Carbon harness Toho the Heat HTS40 12K a

- - 54 - - 61 - - 67 - - 50 -

The carbon fiber brand UT-900

- 68 - - 52 - - 63 - - 66 - -

Placenta brand ALOR-P

70 - - 59 - - 56 - - 65 - - -

Table 3 Name

No. of examples

Prototype

1 2 3 4 5 6 7 8 9 10 11 12

Tensile strength at compression, Sigma , MPa

1290 1050 1090 1080 1200 1230 1210 1100 1180 1170 1190 1040 990

Ultimate strength at interlaminar shear t xz , MPa

109 "96 "95 ~97 104 109 107 "94 103 101 106 102 85

The glass transition temperature of the dry material, Tg dry , C

195 211 187 197 194 193 188 200 199 210 192 194 216

The glass transition temperature of the wet material, after exposure to heat and humidity chamber at 70 C and 85% humidity within 14 days Tg web, C

188 189 175 187 182 187 178 189 189 191 180 188 169

The glass transition temperature of the wet material, after exposure to heat and humidity chamber at 70 C and 85% humidity within 2 months Tg wet , C

157 ""161 151 158 154 157 153 160 159 160 156 155 113

1. Epoxy binder, including multifunctional epoxy resin and epoxy bifunktionalno resin, polyisocyanate, hardener 4,4'-diaminodiphenylmethane and thermoplastic resin notable as bifunktionalno resin binder contains diglitseridy broadcast resorcinol with hydroxyl groups, and as a thermoplastic resin use polarisation in the following ratio of components, mass%:

multifunctional epoxy resin

10,0-50,0

diglycidyl ether of resorcinol

with hydroxyl groups

10,0-50,0

the polyisocyanate

0,1-3,5

the hardener-4,4'-diaminodiphenylmethane

17,0-30,0

polarisation

5,0-30,0

2. Epoxy binder according to claim 1, characterized in that, as a polyfunctional resin use epoxy resin, selected from the following groups: modified epoxyamine resin, resin on the basis of phenols, goldenprofitsis aromatic amines.

3. Epoxy binder according to claim 1, characterized in that the quality thermoplastic resin use polarisation fenolftaleina containing in its structure fenolftaleina links from 30 to 90% or their mixtures.

4. Epoxy binder according to claim 1, wherein as bifunktionalno resin use advanced epoxy Dianov resin or a mixture of epoxy Dianov resins with molecular weight from 340 to 540 5,0-30,0% by weight all binder.

5. Prepreg, including epoxy binder and carbon fibrous filler, wherein as epoxy binder use binder according to claim 1.

6. Prepreg according to claim 5, wherein contains components in the following ratio, mass%:

epoxy binder

30,0-50,0

fibrous filler

50,0-70,0

7. Prepreg of claim 6, wherein the carbon fibrous filler is made in the form of a loom, cloth, tape.

8. The product is made of prepreg-pressing method, wherein as a prepreg use a markup p.5.