CN103073802A - Chlorosulfonated polyethylene rubber/chlorhydrin rubber sealing pad and preparation method - Google Patents

Chlorosulfonated polyethylene rubber/chlorhydrin rubber sealing pad and preparation method Download PDF

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Publication number
CN103073802A
CN103073802A CN2012104339913A CN201210433991A CN103073802A CN 103073802 A CN103073802 A CN 103073802A CN 2012104339913 A CN2012104339913 A CN 2012104339913A CN 201210433991 A CN201210433991 A CN 201210433991A CN 103073802 A CN103073802 A CN 103073802A
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China
Prior art keywords
parts
rubber
chlorosulfonated polyethylene
sealing pad
polyethylene rubber
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CN2012104339913A
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CN103073802B (en
Inventor
张蔓青
肖颖
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Pingxiang Xinxiu New Material Technology Co.,Ltd.
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Tongling Mingcheng Casting Co Ltd
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Abstract

The invention discloses a chlorosulfonated polyethylene rubber/chlorhydrin rubber sealing pad, which comprises the following raw materials by weight: 135-145 parts of chlorosulfonated polyethylene rubber CSM2305, 15-20 parts of chlorhydrin rubber H45, 10-15 parts of SG-8 type PVC resin, 3-5 parts of terephthalic acid ester, 3-5 parts of poly(1,2-propyleneglycol adipate), 2-3 parts of n-butyl methacrylate, 3-5 parts of magnesium oxide, 1-2 parts of sulphur and the like. The sealing pad has good high temperature resistance performance, sealing performance, flame resistance performance and good corrosion resistant performance, and enables long-term work in mediums such as acid, alkali, oil and the like, the change of volume and hardness is less, and the sealing pad is not adhered on the metal surface; the friction coefficient is small, the wear resistance is good, the sealing pad has flexibility for combining with a sealing surface; the weather aging resistance and ozone aging resistance performances are good, and the sealing pad is durable in use.

Description

A kind of chlorosulfonated polyethylene rubber/chlorohydrin rubber gasket and preparation method thereof
Technical field
The present invention relates to a kind of gasket, be specifically related to a kind of chlorosulfonated polyethylene rubber/chlorohydrin rubber gasket and preparation method thereof.
Background technology
Gasket is a kind of for the inside such as machinery, equipment, pipeline, the material that seals.The gasket that uses at present mostly is rubber gasket, be characterized in: high temperature resistant, anti-ozone, anti-natural weathering, vacuum-resistant, fuel oil resistance, anti-lubricating oil, powerful oxidation corrosion resistance agent, resistance to chemical reagents and electrical insulation capability are good, are widely used in national defense industry and civilian industry.The defectives such as but existing rubber gasket sealing effectiveness is undesirable, wear resistance is relatively poor, intensity is low far can not satisfy actual requirement.Therefore researching and developing a kind of high-performance rubber gasket has become the task of top priority.Summary of the invention
The objective of the invention is for the deficiencies in the prior art, a kind of chlorosulfonated polyethylene rubber of excellent property/chlorohydrin rubber gasket and preparation method thereof is provided.
The technical solution used in the present invention is as follows:
A kind of chlorosulfonated polyethylene rubber/chlorohydrin rubber gasket, the weight part of its constitutive material is: chlorosulfonated polyethylene rubber CSM2305 135-145, chlorohydrin rubber H45 15-20, SG-8 type polyvinyl chloride resin 10-15, terephthalate 3-5, hexanodioic acid propanediol polyester 3-5, n-BMA 2-3, magnesium oxide 3-5, sulphur 1-2, calcium stearate 1-2, dimethyl dimercapto 2-ethyl hexyl ethanoate tin 1-2, attapulgite 5-10, wollastonite powder 5-10, precipitated silica 40-45, carbon black N339 10-20, carbon black N660 5-15, antioxidant 1010 1-2,3-aminopropyl trimethoxysilane 2-3, linking agent TAC 1-2, accelerant CZ 1-2, accelerator CBS 0.5-1.5, anti-aging agent RD 1-2,2-thiol group benzimidazolyl 1-2, anti-aging agent OD 1-2, modification trees ashes 1-2.
Described modification trees ashes are made by following methods: extremely neutral with deionized water wash again after using first 10-15% hydrogen peroxide dipping trees ashes 2-3h, and oven dry; Add and be equivalent to the nano-sized carbon of trees ashes weight 2-3%, the polyisobutene of 1-2%, the tributyl citrate of 2-3%, the ferrocene of 1-2%, the aluminium hydroxide of 3-5%, high speed 4500-4800r/min stirs 20-30min, and ovendry power is broken into ultrafine powder.
The preparation method of chlorosulfonated polyethylene rubber/chlorohydrin rubber gasket may further comprise the steps:
(1) press above-mentioned formulation ratio, the raw material for preparing is sent into refined glue in the rubber mixing machine, glue furnacing temperature is controlled at 80-90 ℃, and the refining glue time is 15-20min;
(2) after refining glue is finished, the taking-up sizing material is paved, after placing at normal temperatures cooling 36-48h, send into and carry out twice sulfuration in the vulcanizing press, the curing temperature of primary vulcanization is controlled at 165-175 ℃, and curing time is 10-15min, primary vulcanization vulcanizes the second time by complete and then carrying out, for the second time sulfuration is 210-220 ℃, and curing time is 5-10min, and twice sulfuration pressure is 15-20MPa;
(3) goods that will finish sulfuration take out, and through the passer, can become finished product behind the finishing burr.
Beneficial effect of the present invention:
The present invention can improve flame retardant resistance and the erosion resistance of gasket by the trees ashes are carried out modification, and it is low to have a cost, the characteristics that effect is good.The inorganic powder materials such as attapulgite, wollastonite powder, precipitated silica have been added, the wear resistance of the gasket that can obviously increase and physical strength in the present invention's prescription.Gasket of the present invention has good resistance to elevated temperatures, sealing property and flame retardant properties; Corrosion resistance is good, in acid, and alkali, energy long term operation in the wet goods medium, its volume and changes in hardness are little, and do not stick on the metallic surface; Frictional coefficient is little, and wear resistance is good; Has the flexibility of being combined with trim; The advantages such as Weather-resistant and ozone ageing performance are good, and be durable in use.
Embodiment
The present invention is further illustrated below in conjunction with specific embodiment.
Embodiment
A kind of chlorosulfonated polyethylene rubber/chlorohydrin rubber gasket, the weight part of its constitutive material is: 142 parts of chlorosulfonated polyethylene rubber CSM2305,20 parts of chlorohydrin rubber H45,12 parts of SG-8 type polyvinyl chloride resins, 3 parts of terephthalate, 5 parts of hexanodioic acid propanediol polyesters, 3 parts of n-BMAs, 4 parts in magnesium oxide, 2 parts in sulphur, 1.5 parts of calcium stearates, 1.8 parts in dimethyl dimercapto 2-ethyl hexyl ethanoate tin, 8 parts of attapulgites, 10 parts of wollastonite powder, 42 parts of precipitated silicas, 15 parts of carbon black N339,10 parts of carbon black N660,2 parts of antioxidant 1010s, 2 parts of 3-aminopropyl trimethoxysilane, 1.5 parts of linking agent TAC, 1.6 parts of accelerant CZs, 0.8 part of accelerator CBS, 1.5 parts of anti-aging agent RDs, 2 parts of 2-thiol group benzimidazolyls, 1.5 parts of anti-aging agent OD, 2 parts in modification trees ashes.
Wherein, described modification trees ashes are made by following methods: extremely neutral with deionized water wash again after using first 12% hydrogen peroxide dipping trees ashes 3h, and oven dry; Add and be equivalent to the nano-sized carbon of trees ashes weight 2%, 2% polyisobutene, 3% tributyl citrate, 1.5% ferrocene, 4% aluminium hydroxide, high speed 4500r/min stirs 30min, and ovendry power is broken into ultrafine powder.
The preparation method of chlorosulfonated polyethylene rubber/chlorohydrin rubber gasket may further comprise the steps:
(1) press above-mentioned formulation ratio, the raw material for preparing is sent into refined glue in the rubber mixing machine, glue furnacing temperature is controlled at 85 ℃, and the refining glue time is 20min;
(2) after refining glue is finished, the taking-up sizing material is paved, after placing at normal temperatures cooling 45h, send into and carry out twice sulfuration in the vulcanizing press, the curing temperature of primary vulcanization is controlled at 165 ℃, and curing time is 15min, primary vulcanization vulcanizes the second time by complete and then carrying out, sulfuration is 220 ℃ for the second time, curing time 6min, and twice sulfuration pressure is 18MPa;
(3) goods that will finish sulfuration take out, and through the passer, can become finished product behind the finishing burr.
The salient features of the gasket that the present embodiment prepares sees the following form 1.
Table 1

Claims (3)

1. chlorosulfonated polyethylene rubber/chlorohydrin rubber gasket, it is characterized in that, the weight part of its constitutive material is: chlorosulfonated polyethylene rubber CSM2305 135-145, chlorohydrin rubber H45 15-20, SG-8 type polyvinyl chloride resin 10-15, terephthalate 3-5, hexanodioic acid propanediol polyester 3-5, n-BMA 2-3, magnesium oxide 3-5, sulphur 1-2, calcium stearate 1-2, dimethyl dimercapto 2-ethyl hexyl ethanoate tin 1-2, attapulgite 5-10, wollastonite powder 5-10, precipitated silica 40-45, carbon black N339 10-20, carbon black N660 5-15, antioxidant 1010 1-2,3-aminopropyl trimethoxysilane 2-3, linking agent TAC 1-2, accelerant CZ 1-2, accelerator CBS 0.5-1.5, anti-aging agent RD 1-2,2-thiol group benzimidazolyl 1-2, anti-aging agent OD 1-2, modification trees ashes 1-2.
2. chlorosulfonated polyethylene rubber according to claim 1/chlorohydrin rubber gasket, it is characterized in that, described modification trees ashes are made by following methods: extremely neutral with deionized water wash again after using first 10-15% hydrogen peroxide dipping trees ashes 2-3h, and oven dry; Add and be equivalent to the nano-sized carbon of trees ashes weight 2-3%, the polyisobutene of 1-2%, the tributyl citrate of 2-3%, the ferrocene of 1-2%, the aluminium hydroxide of 3-5%, high speed 4500-4800r/min stirs 20-30min, and ovendry power is broken into ultrafine powder.
3. the preparation method of chlorosulfonated polyethylene rubber as claimed in claim 1/chlorohydrin rubber gasket is characterized in that may further comprise the steps:
(1) press above-mentioned formulation ratio, the raw material for preparing is sent into refined glue in the rubber mixing machine, glue furnacing temperature is controlled at 80-90 ℃, and the refining glue time is 15-20min;
(2) after refining glue is finished, the taking-up sizing material is paved, after placing at normal temperatures cooling 36-48h, send into and carry out twice sulfuration in the vulcanizing press, the curing temperature of primary vulcanization is controlled at 165-175 ℃, and curing time is 10-15min, primary vulcanization vulcanizes the second time by complete and then carrying out, for the second time sulfuration is 210-220 ℃, and curing time is 5-10min, and twice sulfuration pressure is 15-20MPa;
(3) goods that will finish sulfuration take out, and through the passer, can become finished product behind the finishing burr.
CN201210433991.3A 2012-11-02 2012-11-02 A kind of chlorosulfonated polyethylene rubber/chlorohydrin rubber gasket and preparation method thereof Active CN103073802B (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103613871A (en) * 2013-11-12 2014-03-05 铜陵市肆得科技有限责任公司 Compounded rubber sealing gasket material and preparation method thereof
CN103627100A (en) * 2013-11-12 2014-03-12 铜陵市肆得科技有限责任公司 Sealing gasket material prepared by compositing various rubber and preparation method thereof
CN103642186A (en) * 2013-11-12 2014-03-19 铜陵市肆得科技有限责任公司 Elastic enhanced rubber gasket material and preparation method thereof
CN103642187A (en) * 2013-11-12 2014-03-19 铜陵市肆得科技有限责任公司 Composite rubber gasket material and preparation method thereof
CN103694582A (en) * 2013-11-29 2014-04-02 马鞍山市中澜橡塑制品有限公司 Gasket material formed by mixing compounded rubber and preparation method of gasket material
CN103694666A (en) * 2013-11-29 2014-04-02 马鞍山市中澜橡塑制品有限公司 High-strength sealed composite rubber sealing gasket material and preparation method thereof
CN103709714A (en) * 2013-12-16 2014-04-09 芜湖万润机械有限责任公司 Sealing gasket material prepared by mixing three types of rubber and preparation method of sealing gasket material
CN105585836A (en) * 2015-12-30 2016-05-18 张桂华 Anti-aging synthetic rubber formula and preparation method thereof
WO2022071279A1 (en) * 2020-09-30 2022-04-07 株式会社大阪ソーダ Rubber composition

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1590451A (en) * 2003-07-31 2005-03-09 早川橡胶株式会社 Radiation resistant cross linked polymer compositions and radiation resistant polymer products
CN102399385A (en) * 2011-11-17 2012-04-04 铜陵亿亨达电子有限责任公司 High-performance explosion-proof rubber sealing cover and preparation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1590451A (en) * 2003-07-31 2005-03-09 早川橡胶株式会社 Radiation resistant cross linked polymer compositions and radiation resistant polymer products
CN102399385A (en) * 2011-11-17 2012-04-04 铜陵亿亨达电子有限责任公司 High-performance explosion-proof rubber sealing cover and preparation method thereof

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103613871A (en) * 2013-11-12 2014-03-05 铜陵市肆得科技有限责任公司 Compounded rubber sealing gasket material and preparation method thereof
CN103627100A (en) * 2013-11-12 2014-03-12 铜陵市肆得科技有限责任公司 Sealing gasket material prepared by compositing various rubber and preparation method thereof
CN103642186A (en) * 2013-11-12 2014-03-19 铜陵市肆得科技有限责任公司 Elastic enhanced rubber gasket material and preparation method thereof
CN103642187A (en) * 2013-11-12 2014-03-19 铜陵市肆得科技有限责任公司 Composite rubber gasket material and preparation method thereof
CN103694582A (en) * 2013-11-29 2014-04-02 马鞍山市中澜橡塑制品有限公司 Gasket material formed by mixing compounded rubber and preparation method of gasket material
CN103694666A (en) * 2013-11-29 2014-04-02 马鞍山市中澜橡塑制品有限公司 High-strength sealed composite rubber sealing gasket material and preparation method thereof
CN103709714A (en) * 2013-12-16 2014-04-09 芜湖万润机械有限责任公司 Sealing gasket material prepared by mixing three types of rubber and preparation method of sealing gasket material
CN105585836A (en) * 2015-12-30 2016-05-18 张桂华 Anti-aging synthetic rubber formula and preparation method thereof
WO2022071279A1 (en) * 2020-09-30 2022-04-07 株式会社大阪ソーダ Rubber composition

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Patentee after: Pingxiang Xinxiu New Material Technology Co.,Ltd.

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Patentee before: TONGLING MINGCHENG CASTING Co.,Ltd.

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