CN103724726A - Piston cup rubber - Google Patents

Abstract

The invention discloses a piston cup rubber which comprises the following raw materials in parts by weight: 94-100 parts of chemigum N250S, 3-4 parts of carbon fiber, 3-5 parts of polyether-ether-ketone, 1-2 parts of diacetone alcohol, 0.8-1 part of tri-n-butyltin chloride, 12-17 parts of tritolyl phosphate, 5-8 parts of barium stearate, 10-16 parts of light calcium carbonate, 2-3 parts of palm wax, 2-4 parts of poly (butyl acrylate), 1-2 parts of aluminium oxide, 0.8-1 part of a vulcanizing agent PM, 1-2 parts of an accelerant BZ, 1-2 parts of an age resister 4010 and 15-20 parts of composite filler. The piston cup rubber is high in cold-resistant coefficient and biodiesel ageing resistance, can be used in low-temperature environment in the long run, and is excellent in environmental adaptability and broad in application range.

Description

A kind of piston cup rubber

Technical field

The present invention relates generally to auto parts machinery field, relates in particular to a kind of piston cup rubber.

Background technology

At present, automotive hydraulic brake rubber cup is for the brake fluid system of car, Light-duty Vehicle, minibus, part bogie and clutch operating system, to play the rubber seal of transmission of pressure and sealing function, and rubber cup is a kind of one of important rubber product of function that is widely used in rubber item.

Summary of the invention

The object of the invention is just to provide a kind of piston cup rubber.

The present invention is achieved by the following technical solutions:

A piston cup rubber, it is comprised of the raw material of following weight parts:

Paracril N250S 94-100, carbon fibre 3-4, polyether-ether-ketone 3-5, diacetone alcohol 1-2, tributyl tin trichloride 0.8-1, Tritolyl Phosphate 12-17, barium stearate 5-8, light calcium carbonate 10-16, palm wax 2-3, butyl polyacrylate 2-4, aluminum oxide 1-2, vulcanizing agent PM 0.8-1, accelerant B Z 1-2, antioxidant 4010 1-2, compounded mix 15-20;

Described compounded mix is comprised of the raw material of following weight parts:

Black earth 30-35, Kaolinite 10-14, chromium carbonate 2-3, sepiolite powder 4-6, tripoly phosphate sodium STPP 1-2, N.F,USP MANNITOL 2-3, dodecanedioic acid 0.6-1, water are appropriate;

Above-mentioned black earth, sepiolite powder are mixed, at 600-700 ℃, calcine 1-2 hour, cooling discharging, adds N.F,USP MANNITOL, mixes, and obtains Preblend; Tripoly phosphate sodium STPP is joined in 6-10 times of water, after stirring, add chromium carbonate, Kaolinite, 100-200 rev/min of dispersed with stirring 4-6 minute, mix with above-mentioned Preblend, after stirring, add each raw material of residue, mixed grinding, dry, cross 80-100 mesh sieve, obtain described compounded mix.

A preparation method for piston cup rubber, comprises the following steps:

Above-mentioned polyether-ether-ketone is mixed with palm wax, at 60-80 ℃, be uniformly mixed 3-4 minute, be cooled to normal temperature, add paracril N250S, carbon fibre, light calcium carbonate, compounded mix, mix, drop in Banbury mixer, 10-16 minute plasticates at 70-75 ℃, after discharge is cooling, add in Banbury mixer, add except vulcanizing agent PM, accelerant B Z, each raw material beyond aluminum oxide, mixing 10-20 minute, mixing rear slice is parked 20-24 hour, obtain film, add mill, add each raw material of residue, vulcanize, obtain described piston cup rubber.

Advantage of the present invention is:

The cold-resistant coefficient of rubber cup sizing material of the present invention is high, can meet the Working environment under long-term low temperature, and the aging of resistance to biofuel is strong, and good to the adaptability of environment, use range is extensive.

Embodiment

Embodiment 1

A piston cup rubber, it by following weight parts (kilogram) raw material form:

Paracril N250S 100, carbon fibre 3, polyether-ether-ketone 3, diacetone alcohol 1, tributyl tin trichloride 0.8, Tritolyl Phosphate 17, barium stearate 8, light calcium carbonate 16, palm wax 3, butyl polyacrylate 4, aluminum oxide 1, vulcanizing agent PM 0.8, accelerant B Z 1, antioxidant 4010 1, compounded mix 20;

Described compounded mix is comprised of the raw material of following weight parts:

Black earth 35, Kaolinite 14, chromium carbonate 2, sepiolite powder 6, tripoly phosphate sodium STPP 2, N.F,USP MANNITOL 3, dodecanedioic acid 0.6, water are appropriate;

Above-mentioned black earth, sepiolite powder are mixed, calcine 1 hour at 700 ℃, cooling discharging, adds N.F,USP MANNITOL, mixes, and obtains Preblend; Tripoly phosphate sodium STPP is joined in 10 times of water, after stirring, add chromium carbonate, Kaolinite, 200 revs/min of dispersed with stirring 6 minutes, mix with above-mentioned Preblend, after stirring, add each raw material of residue, mixed grinding, dry, cross 100 mesh sieves, obtain described compounded mix.

A preparation method for piston cup rubber, comprises the following steps:

Above-mentioned polyether-ether-ketone is mixed with palm wax, at 80 ℃, be uniformly mixed 4 minutes, be cooled to normal temperature, add paracril N250S, carbon fibre, light calcium carbonate, compounded mix, mix, drop in Banbury mixer, at 75 ℃, plasticate 16 minutes, after discharge is cooling, add in Banbury mixer, add each raw material except vulcanizing agent PM, accelerant B Z, aluminum oxide, mixing 20 minutes, mixing rear slice was parked 24 hours, obtains film, add mill, add each raw material of residue, vulcanize, obtain described piston cup rubber.

Performance test:

Tensile strength: 24.9Mpa;

Fracture elongation rate 421%;

(50 ℃) coefficient >=0.4 of resisting cold;

23 ℃ * 72h biofuel weathering test: tensile strength 22.8 Mpa, fracture elongation rate are 406%;

Ozone resistance: 500pphm * 40 ℃ * 70h, 20% flawless phenomenon stretches.

Claims (2)

1. a piston cup rubber, is characterized in that what it was comprised of the raw material of following weight parts:

Paracril N250S 94-100, carbon fibre 3-4, polyether-ether-ketone 3-5, diacetone alcohol 1-2, tributyl tin trichloride 0.8-1, Tritolyl Phosphate 12-17, barium stearate 5-8, light calcium carbonate 10-16, palm wax 2-3, butyl polyacrylate 2-4, aluminum oxide 1-2, vulcanizing agent PM 0.8-1, accelerant B Z 1-2, antioxidant 4010 1-2, compounded mix 15-20;

Described compounded mix is comprised of the raw material of following weight parts:

Black earth 30-35, Kaolinite 10-14, chromium carbonate 2-3, sepiolite powder 4-6, tripoly phosphate sodium STPP 1-2, N.F,USP MANNITOL 2-3, dodecanedioic acid 0.6-1, water are appropriate;

Above-mentioned black earth, sepiolite powder are mixed, at 600-700 ℃, calcine 1-2 hour, cooling discharging, adds N.F,USP MANNITOL, mixes, and obtains Preblend; Tripoly phosphate sodium STPP is joined in 6-10 times of water, after stirring, add chromium carbonate, Kaolinite, 100-200 rev/min of dispersed with stirring 4-6 minute, mix with above-mentioned Preblend, after stirring, add each raw material of residue, mixed grinding, dry, cross 80-100 mesh sieve, obtain described compounded mix.

2. a preparation method for piston cup rubber as claimed in claim 1, is characterized in that comprising the following steps:

Above-mentioned polyether-ether-ketone is mixed with palm wax, at 60-80 ℃, be uniformly mixed 3-4 minute, be cooled to normal temperature, add paracril N250S, carbon fibre, light calcium carbonate, compounded mix, mix, drop in Banbury mixer, 10-16 minute plasticates at 70-75 ℃, after discharge is cooling, add in Banbury mixer, add except vulcanizing agent PM, accelerant B Z, each raw material beyond aluminum oxide, mixing 10-20 minute, mixing rear slice is parked 20-24 hour, obtain film, add mill, add each raw material of residue, vulcanize, obtain described piston cup rubber.