The composition for impregnation of textile materials

 

(57) Abstract:

The invention relates to the tire and rubber industry, in particular impregnating compositions that enhance the bond strength of a textile material with rubber. The composition for impregnation of the textile material contains a combination of latex DBA-1 - water dispersion of ternary copolymer of butadiene, butyl acrylate and methacrylic amide acid and SKD-1C - butadiene copolymer with methacrylic acid, taken in the mass ratio DBA-1: SKD-1C 30:70 to 50:50, calculated on the dry matter - 100.0 wt. o'clock, the condensed aqueous solution of resin-based resorcinol and formaldehyde 350 - 400 wt.h., obtained in the presence of caustic soda, aged 7-15 h at 20-30oWith, when the ratio of initial components, wt.h.: the resorcinol 25, aqueous solution of formaldehyde 37% concentration of 41.0 - 43,0, caustic soda 10% concentration - 19,0-21,0, water 760,0 - 780,0, ammonia water 25% to 8.0 - 10.0 wt.h., water 350-400 wt.h. The proposed structure increases the bond strength of textile materials to rubber. table 2.

The invention relates to the tire and rubber industry, in particular impregnating compositions that enhance the bond strength of a textile material with rubber.

Suramadu and lining fabric), which contains a latex of a copolymer of butadiene and vanillyl-methylamine, or (di-2-phenylalkyl)-methylamine in the following ratio, wt.h.:

The latex of copolymer of butadiene and generally-methylamine, or (di-2-phenylalkyl)-methylamine (dry residue) - 100,0

Resorcinolformaldehyde resin - 5 - 50

20% iodine ammonia solution of 1 - 10

Water is 800 - 2000

Also known composition for the treatment of textile materials, which further comprises a latex of a butadiene copolymer (methacrylic acid or vinyl(alkyl)pyridine in the following ratio, wt.h.:

The latex of copolymer of butadiene and generally-methylamine, or (di-2-phenylalkyl)-methylamine (dry residue) - 15 - 85

The latex of copolymer of butadiene and (meth)acrylic acid or vinyl(alkyl)pyridine (dry residue) - 15 - 85

Resorcinolformaldehyde resin - 5 - 50

20% iodine ammonia solution of 1 - 10

Water is 800 - 1000

SU 861362 from 07.09.1981 - the closest analogue.

Textile materials treated with the proposed components have a low bonding strength with rubber.

The aim of the invention is to increase the bond strength of textile materials to rubber.

The goal dostygarinova acid, including latex, resorcinolformaldehyde resin, ammonia water, water, as resorcinolformaldehyde resin it contains the condensed aqueous solution of resin-based resorcinol and formaldehyde obtained in the presence of caustic soda, aged 7-15 h at 20-30oWith, when the ratio of initial components, wt.h.:

resorcinol (1,3-dioxobenzo) - 25, an aqueous solution of formaldehyde 37% concentration - 41,0-43,0%, caustic soda 10% concentration - 19,0-21,0, water - 760,0-780,0, and it additionally contains latex DBA-1 - water dispersion triple-butadiene copolymer, amide acrylate and methacrylic acid in the weight ratio of the latex SKD-1 with from 30:70 to 50:50, respectively, in the following ratio of components, wt.h.:

The above combination of latex (in terms of dry substance) - 100,0

The above condensed aqueous solution of resin-based resorcinol and formaldehyde - 350 - 400

Ammonia water 25% - 8,0 - 10,0

Water - 350 - 400

The preparation of the impregnating composition is carried out in a mixer with a capacity of 2 m3the loading order of the components in the mixer when mixing the following:

1. Latex SKD-1C

2. Latex DBA-1

3. Water

4. The condensed aqueous solution of smo is t mixing an impregnating composition for 5-10 minutes

The duration of the cooking cycle structure 40 minutes.

The condensed aqueous solution of resin-based resorcinol and formaldehyde receive in the presence of caustic soda in the mixer 1 m3or 2 m3can withstand 7-15 h at 20-30oWith, when the ratio of initial components, wt.h.:

Resorcinol (1,3-dioxobenzo) - 25

An aqueous solution of formaldehyde 37% concentration - 41,0 - 43,0

Caustic soda 10% concentration - 19,0 - 21,0

Water - 760,0 - 780,0

The boot order of the components with stirring the following:

1. Water

2. Caustic soda

3. Resorcinol

4. An aqueous solution of formaldehyde 37% concentration

Mixing produce 8-10 minutes.

the pH of the solution of resin - 8,0-9,0.

Specific optical density dilution with water 1:1 and 1.5 to 3.5.

Examples of specific performance, the composition for impregnation of viscose, nylon and analnogo cords, the results of the evaluation of bond strength of impregnated cord with a control rubber-based isoprene rubber SKI-3 are shown in tables 1, 2.0

The composition for impregnation of textile materials-based latex SKD-1C - butadiene copolymer and methacrylic acid, including resorcinolformaldehyde resin is p an aqueous solution of the resin on the basis of resorcinol and formaldehyde, obtained in the presence of caustic soda, aged 7-15 h at 20-30oWith, when the ratio of initial components, wt.h. : resorcinol (1,3-dioxobenzo) 25, an aqueous solution of formaldehyde 37% concentration of 41.0 - 43,0, caustic soda 10% concentration 19,0-21,0, water 760-780,0 and it contains latex DBA-1 - water dispersion triple-butadiene copolymer, amide acrylate and methacrylic acid in the weight ratio of the latex SKD-1C, 30:70 to 50:50, respectively, in the following ratio of components, wt.h.:

The above combination of latex (in terms of dry substance) - 100,0

The above condensed aqueous solution of resin-based resorcinol and formaldehyde - 350-400

Ammonia water 25% - 8,0-10,0

Water - 350-e

 

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Friction material // 2265630

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SUBSTANCE: invention relates to a method for preparing friction material, which can be used for making friction unit parts for a variety of mechanisms and machines such as brake members of drum and disk brakes, motor car couplings, etc. Material contains, wt %: powderlike polyamine-imine resin (PAIS-104) 10-15, butadiene-nitrile rubber latex 2-5 (for solids), fibrous filler 15-25, carbon filler 2-7, alumina 10-15, bronze chippings 3-5, graphite 0.5-2.0, calcium hydroxide 0.5-1.0, and barite concentrate - the balance. Fibrous filler is a mixture of polyoxadiazole fiber (Oksalon), basalt fibers, and glass fibers at their ratio (1-2):(3-5):(1-2). Carbon filler is a product obtained by heat treatment of non-stoichiometric titanium carbide TiCx (0.5≤x≤1) impregnated with industrial machine oil, diesel fuel, exhausted oil, or mixture thereof, said heat treatment being carried out at 700-900°C under an inert atmosphere.

EFFECT: enhanced corrosion resistance of material and suppressed release of phenol during manufacture and use of material.

3 tbl, 3 ex

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EFFECT: increased bend resistance and size stability at room temperature and high temperatures.

10 cl, 1 dwg, 6 tbl, 5 ex

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SUBSTANCE: invention relates to a method and material for making elastomeric articles from nitrile rubber. The elastomeric article is made from carboxylated butadiene-nitrile rubber composition in latex form. The rubber composition consists of two acrylo-nitrile compositions - first and second, taken in ratio between 60:40 and 40:60. The rubber composition has glass transition temperature Tg between -15°C and -30°C. The composition contains a proportional amount of alkali metal and metal oxide, where the amount of metal hydroxide is equal to 0-1.5 parts, and the amount of the metal oxide is greater than 0.5 but less than or equal to 1.5 parts per 100 dry parts of rubber. The article has given thickness of up to 0.12 mm.

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EFFECT: good flexibility of polyamide-based materials and improved resistance to hydrolysis and oil swell.

33 cl, 4 dwg, 2 tbl, 1 ex

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