CN103724722A - Piston leather collar rubber - Google Patents

Abstract

The invention discloses a piston leather collar rubber which comprises the following raw materials in parts by weight: 100-107 parts of chemigum N41, 2-3 parts of lithopone, 0.4-1 part of potassium ferrocyanide, 10-13 parts of sericite powder, 6-8 parts of fluorapatite, 2-3 parts of calcium phosphate, 1-2 parts of sodium hexametaphosphate, 0.7-1 part of pyrithionc zinc, 3-4 parts of butyl methacrylate, 1-2 parts of N,N-dimethyl-1,3-propanediamine, 6-8 parts of 4,5-epoxy, 0.8-1 part of sulphur, 0.6-1 part of an age resister SP, 0.5-1 part of an age resister RD, 1-2 parts of zinc oxide and 10-16 parts of composite filler. The piston leather collar rubber is excellent in surface smoothness, high in wear resistance and water resistance, and excellent in rebound resilience, ageing resistance and comprehensive quality.

Description

A kind of piston apron rubber

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Technical field

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

Background technology

Paracril is mainly used in making oil-resistant article, as oil resistant pipe, adhesive tape, diaphragm of rubber and large-scale oil sac etc., be usually used in making all kinds of oil resistant pressings, as O shape circle, oil sealing, leather cup, diaphragm, valve, corrugated tube, sebific duct, sealing member, foaming etc., also for making offset plate and wear part.

Summary of the invention

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

The present invention is achieved by the following technical solutions:

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

Paracril N41 100-107, lithopone 2-3, yellow prussiate of potash 0.4-1, sericite in powder 10-13, fluorapatite 6-8, calcium phosphate 2-3, Sodium hexametaphosphate 99 1-2, Zinc Pyrithione 0.7-1, butyl methacrylate 3-4, dimethylaminopropylamine 1-2,4,5-epoxy 6-8, sulphur 0.8-1, antioxidant SP 0.6-1, anti-aging agent RD 0.5-1, zinc oxide 1-2, compounded mix 10-16;

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

Black earth 30-40, gibbsite 7-10, cuprichexafluorosilicate 1-2, polydimethylsiloxane 1-2, polyvinyl alcohol 2-3, Calucium Silicate powder 5-7, stannous octoate 0.1-0.3;

Above-mentioned black earth is calcined to 1-2 hour at 600-700 ℃, after discharging, mix and grind into powder with gibbsite, cuprichexafluorosilicate; Above-mentioned Calucium Silicate powder is mixed with polyvinyl alcohol, heated and stirred 3-5 minute at 60-70 ℃, reduction temperature is normal temperature, adds polydimethylsiloxane, is uniformly mixed; Above-mentioned raw material after treatment is mixed with the each raw material of residue, and ball milling, dries, and obtains described compounded mix.

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

Above-mentioned fluorapatite is mixed with calcium phosphate, add butyl methacrylate, at 60-70 ℃, be uniformly mixed 7-10 minute, mix with paracril N41, sericite in powder, compounded mix, drop in Banbury mixer, 10-16 minute plasticates at 70-75 ℃, after discharge is cooling, add in Banbury mixer, add the each raw material except zinc oxide, sulphur, mixing 10-20 minute, mixing rear slice is parked 20-24 hour, obtain film, add mill, add the each raw material of residue, vulcanize, obtain described piston apron rubber.

Advantage of the present invention is:

Apron rubber surface slipperiness of the present invention is good, and wear-resisting and waterproof is strong, and rebound resilience is good, and ageing resistance is good, and overall quality is good.

Embodiment

Embodiment 1

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

Paracril N41 107, lithopone 2, yellow prussiate of potash 0.4, sericite in powder 13, fluorapatite 8, calcium phosphate 2, Sodium hexametaphosphate 99 2, Zinc Pyrithione 0.7, butyl methacrylate 4, dimethylaminopropylamine 1,4,5-epoxy 8, sulphur 0.8-1, antioxidant SP 0.6, anti-aging agent RD 0.5, zinc oxide 2, compounded mix 16;

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

Black earth 30, gibbsite 10, cuprichexafluorosilicate 1, polydimethylsiloxane 2, polyvinyl alcohol 2, Calucium Silicate powder 5, stannous octoate 0.3;

Above-mentioned black earth is calcined 1 hour at 700 ℃, after discharging, mixed and grind into powder with gibbsite, cuprichexafluorosilicate; Above-mentioned Calucium Silicate powder is mixed with polyvinyl alcohol, heated and stirred 5 minutes at 70 ℃, reduction temperature is normal temperature, adds polydimethylsiloxane, is uniformly mixed; Above-mentioned raw material after treatment is mixed with the each raw material of residue, and ball milling, dries, and obtains described compounded mix.

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

Above-mentioned fluorapatite is mixed with calcium phosphate, add butyl methacrylate, at 70 ℃, be uniformly mixed 10 minutes, mix with paracril N41, sericite in powder, compounded mix, drop in Banbury mixer, at 75 ℃, plasticate 16 minutes, after discharge is cooling, add in Banbury mixer, add the each raw material except zinc oxide, sulphur, mixing 20 minutes, mixing rear slice is parked 24 hours, obtain film, add mill, add the each raw material of residue, vulcanize, obtain described piston apron rubber.

Performance test:

Tensile strength: 28.5Mpa;

Fracture elongation rate 428%;

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

23 ℃ × 72h biofuel weathering test: tensile strength 27.1 Mpa, fracture elongation rate are 411%;

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

Claims (2)

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

Paracril N41 100-107, lithopone 2-3, yellow prussiate of potash 0.4-1, sericite in powder 10-13, fluorapatite 6-8, calcium phosphate 2-3, Sodium hexametaphosphate 99 1-2, Zinc Pyrithione 0.7-1, butyl methacrylate 3-4, dimethylaminopropylamine 1-2,4,5-epoxy 6-8, sulphur 0.8-1, antioxidant SP 0.6-1, anti-aging agent RD 0.5-1, zinc oxide 1-2, compounded mix 10-16;

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

Black earth 30-40, gibbsite 7-10, cuprichexafluorosilicate 1-2, polydimethylsiloxane 1-2, polyvinyl alcohol 2-3, Calucium Silicate powder 5-7, stannous octoate 0.1-0.3;

Above-mentioned black earth is calcined to 1-2 hour at 600-700 ℃, after discharging, mix and grind into powder with gibbsite, cuprichexafluorosilicate; Above-mentioned Calucium Silicate powder is mixed with polyvinyl alcohol, heated and stirred 3-5 minute at 60-70 ℃, reduction temperature is normal temperature, adds polydimethylsiloxane, is uniformly mixed; Above-mentioned raw material after treatment is mixed with the each raw material of residue, and ball milling, dries, and obtains described compounded mix.

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

Above-mentioned fluorapatite is mixed with calcium phosphate, add butyl methacrylate, at 60-70 ℃, be uniformly mixed 7-10 minute, mix with paracril N41, sericite in powder, compounded mix, drop in Banbury mixer, 10-16 minute plasticates at 70-75 ℃, after discharge is cooling, add in Banbury mixer, add the each raw material except zinc oxide, sulphur, mixing 10-20 minute, mixing rear slice is parked 20-24 hour, obtain film, add mill, add the each raw material of residue, vulcanize, obtain described piston apron rubber.