CN103724740A - Rubber sheath for automobile universal joint - Google Patents

Abstract

The invention discloses a rubber sheath for an automobile universal joint. The rubber sheath comprises the following raw materials in parts by weight: 96-100 parts of neoprene S40V, 0.6-1 part of imarcaptoacetate dioctyltin, 1-2 parts of chlorine fluorine ethofenprox, 2-3 parts of beta-hydroxyalkylamide, 6-8 parts of anhydrous calcium chloride, 6-8 parts of triethyl acetocitrate, 1-2 parts of iron oxide red, 2-3 parts of glycerol triacetate, 1-2 parts of sodium sulfide, 10-14 parts of coal ash, 3-5 parts of calcium stearate, 1-2 parts of 2,6-Di-tert-butyl-4-methylphenol, 1-2 parts of an accelerating agent CZ, 0.8-1.2 parts of sulphur and 16-20 parts of a composite filler. The rubber sheath for the automobile universal joint, provided by the invention, has the effects of vibration reduction and sound insulation, and is good in water proofing and oil resistance, strong in abrasion resistance and excellent in comprehensive performance.

Description

A kind of rubber sheath of automobile gimbal

Technical field

The present invention relates generally to auto parts machinery field, relates in particular to a kind of rubber sheath of automobile gimbal.

Background technology

Chloroprene rubber has good physical and mechanical properties, and oil resistant is heat-resisting, resistance to combustion, resistance to daylight, resistance to ozone, acid and alkali-resistance, chemical-resistant reagent.Shortcoming is that winter hardiness and package stability are poor.Have higher tensile strength, elongation and reversible crystallinity, cementability is good.Ageing-resistant, heat-resisting.Oil resistant, chemical resistance excellence.Weathering resistance and resistance to ozone ageing are only second to ethylene-propylene rubber(EPR) and isoprene-isobutylene rubber.Thermotolerance and paracril are suitable, 230～260 ℃ of decomposition temperatures, short-term can be resistance to 120～150 ℃, 80～100 ℃ can life-time service, there is certain flame retardant resistance.Oil-proofness is only second to paracril.Inorganic acid resistance, caustic corrosion are good.Winter hardiness is slightly poor, and electrical insulating property is not good.Rubber poor storage stability, can produce " bin cure " phenomenon, and Mooney viscosity increases, and therefore with various additive compounds, improves the over-all properties of chloroprene rubber, can expand its use range.

Summary of the invention

The object of the invention is just to provide a kind of rubber sheath of automobile gimbal.

The present invention is achieved by the following technical solutions:

A rubber sheath for automobile gimbal, it is comprised of the raw material of following weight parts:

Chloroprene rubber S40V 96-100, Imarcaptoacetate dioctyltin 0.6-1, chlorine fluorine ether chrysanthemum ester 1-2, β-hydroxyalkyl amide 2-3, Calcium Chloride Powder Anhydrous 6-8, acetyl triethyl citrate 6-8, red iron oxide 1-2, Vanay 2-3, sodium sulphite 1-2, flyash 10-14, calcium stearate 3-5,2,6 ditertiary butyl p cresol 1-2, accelerant CZ 1-2, sulphur 0.8-1.2, compounded mix 16-20;

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

Black earth 40-45,10000 years grey 6-10, flyash 10-13, soda powder 2-3, two Imidurea 1-2, hexamethoxymethyl melamine resin 2-3, water are appropriate;

Above-mentioned soda powder is joined in 2-3 times of water, add 10000 years ashes after stirring, at 40-50 ℃, heated and stirred is dry to water, adds hexamethoxymethyl melamine resin, and 200-300 rev/min of dispersed with stirring 3-5 minute, obtains Preblend; Above-mentioned black earth and flyash are mixed, calcine after 1-2 hour and mix with above-mentioned Preblend at 600-700 ℃, abrasive dust, sieves, and obtains described compounded mix.

A preparation method for the rubber sheath of automobile gimbal, comprises the following steps:

Above-mentioned Calcium Chloride Powder Anhydrous is mixed with calcium stearate, after stirring, add β-hydroxyalkyl amide, at 40-50 ℃, be uniformly mixed 7-10 minute, mix with chloroprene rubber S40V, Imarcaptoacetate dioctyltin, chlorine fluorine ether chrysanthemum ester, red iron oxide, Vanay, adding Banbury mixer, is mixing 2-5 minute at 85-90 ℃ in temperature; Adding flyash, compounded mix, is at 80-90 ℃ in temperature again, mixing 4-10 minute; Adding each raw material of residue, is mixing 2-5 minute at 55-60 ℃ in temperature again, obtains the rubber sheath of described automobile gimbal.

Advantage of the present invention is:

The rubber sheath of automobile gimbal of the present invention has damping soundproof effect, and water-oil resistance is good, and resistance to abrasion is strong, and over-all properties is superior.

Embodiment

Embodiment 1

The rubber sheath of automobile gimbal, it by following weight parts (kilogram) raw material form:

Chloroprene rubber S40V 100, Imarcaptoacetate dioctyltin 0.6, chlorine fluorine ether chrysanthemum ester 2, β-hydroxyalkyl amide 3, Calcium Chloride Powder Anhydrous 8, acetyl triethyl citrate 8, red iron oxide 2, Vanay 2, sodium sulphite 2, flyash 14, calcium stearate 5,2,6 ditertiary butyl p cresol 1, accelerant CZ 2, sulphur 1.2, compounded mix 20;

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

Black earth 45,10000 years ashes 10, flyash 13, soda powder 3, two Imidurea 1, hexamethoxymethyl melamine resin 3, water are appropriate;

Above-mentioned soda powder is joined in 2 times of water, add 10000 years ashes after stirring, at 50 ℃, heated and stirred is dry to water, adds hexamethoxymethyl melamine resin, and 200 revs/min of dispersed with stirring 3 minutes, obtain Preblend; Above-mentioned black earth and flyash are mixed, calcine after 2 hours and mix with above-mentioned Preblend at 700 ℃, abrasive dust, sieves, and obtains described compounded mix.

A preparation method for the rubber sheath of automobile gimbal, comprises the following steps:

Above-mentioned Calcium Chloride Powder Anhydrous is mixed with calcium stearate, after stirring, add β-hydroxyalkyl amide, at 50 ℃, be uniformly mixed 10 minutes, mix with chloroprene rubber S40V, Imarcaptoacetate dioctyltin, chlorine fluorine ether chrysanthemum ester, red iron oxide, Vanay, adding Banbury mixer, is mixing 2-5 minute at 90 ℃ in temperature; Adding flyash, compounded mix, is at 90 ℃ in temperature again, mixing 10 minutes; Adding each raw material of residue, is at 60 ℃ mixing 5 minutes in temperature again, obtains the rubber sheath of described automobile gimbal.

Performance test:

Tensile strength: 18.3MPa;

Elongation at break: 393%;

Oil-proofness: 100 ℃ * 70h of 20# machine oil, elongation at break conservation rate 74.1%, tensile strength conservation rate 73.7%;

Resistance to ozone: 25 ℃, 24h, ozone concn 0.025%, without cracking;

Ageing-resistant: 120 ℃, 150h, tensile strength conservation rate 89.4%, elongation at break conservation rate 79.8%;

Cold-resistant experiment: (40 ℃, 4h): flawless.

Claims (2)

1. a rubber sheath for automobile gimbal, is characterized in that what it was comprised of the raw material of following weight parts:

Chloroprene rubber S40V 96-100, Imarcaptoacetate dioctyltin 0.6-1, chlorine fluorine ether chrysanthemum ester 1-2, β-hydroxyalkyl amide 2-3, Calcium Chloride Powder Anhydrous 6-8, acetyl triethyl citrate 6-8, red iron oxide 1-2, Vanay 2-3, sodium sulphite 1-2, flyash 10-14, calcium stearate 3-5,2,6 ditertiary butyl p cresol 1-2, accelerant CZ 1-2, sulphur 0.8-1.2, compounded mix 16-20;

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

Black earth 40-45,10000 years grey 6-10, flyash 10-13, soda powder 2-3, two Imidurea 1-2, hexamethoxymethyl melamine resin 2-3, water are appropriate;

Above-mentioned soda powder is joined in 2-3 times of water, add 10000 years ashes after stirring, at 40-50 ℃, heated and stirred is dry to water, adds hexamethoxymethyl melamine resin, and 200-300 rev/min of dispersed with stirring 3-5 minute, obtains Preblend; Above-mentioned black earth and flyash are mixed, calcine after 1-2 hour and mix with above-mentioned Preblend at 600-700 ℃, abrasive dust, sieves, and obtains described compounded mix.

2. a preparation method for the rubber sheath of automobile gimbal as claimed in claim 1, is characterized in that comprising the following steps:

Above-mentioned Calcium Chloride Powder Anhydrous is mixed with calcium stearate, after stirring, add β-hydroxyalkyl amide, at 40-50 ℃, be uniformly mixed 7-10 minute, mix with chloroprene rubber S40V, Imarcaptoacetate dioctyltin, chlorine fluorine ether chrysanthemum ester, red iron oxide, Vanay, adding Banbury mixer, is mixing 2-5 minute at 85-90 ℃ in temperature; Adding flyash, compounded mix, is at 80-90 ℃ in temperature again, mixing 4-10 minute; Adding each raw material of residue, is mixing 2-5 minute at 55-60 ℃ in temperature again, obtains the rubber sheath of described automobile gimbal.