CN102993585B - Chlorosulfonated polyethylene rubber/chloroprene rubber gasket and preparation method thereof - Google Patents
Chlorosulfonated polyethylene rubber/chloroprene rubber gasket and preparation method thereof Download PDFInfo
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- CN102993585B CN102993585B CN201210429869.9A CN201210429869A CN102993585B CN 102993585 B CN102993585 B CN 102993585B CN 201210429869 A CN201210429869 A CN 201210429869A CN 102993585 B CN102993585 B CN 102993585B
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Abstract
The invention discloses a chlorosulfonated polyethylene rubber/chloroprene rubber gasket. The gasket comprises the following raw materials in parts by weight: 135-145 parts of chlorosulfonated polyethylene rubber CSM2305, 10-15 parts of chloroprene rubber S40V, 10-15 parts of SG-2 type PVC (polyvinyl chloride) resins, 2-4 parts of propanediol sebacate polyester, 3-5 parts of n-butyl methacrylate, 1-2 parts of sodium bicarbonate, 0.5-1 part of sulfur, 1-2 parts of calcium stearate and the like. The gasket has the beneficial effects that the gasket has good high temperature resistance, sealability, flame retardance and corrosion resistance and can work in such media as acid, alkali and oil for a long time; the volume and hardness of the gasket are small in variation; the gasket does not adhere to metal surfaces; and the gasket has small friction coefficient and good abrasion resistance and has the advantages of softness of bonding with sealing surfaces, good weathering aging and ozone aging resistance, durability and the like.
Description
Technical field
The present invention relates to a kind of gasket, be specifically related to a kind of chlorosulfonated polyethylene rubber/Chloroprene rubber gasket and preparation method thereof.
Background technology
Gasket is a kind of for inside such as machinery, equipment, pipelines, the material sealed.The gasket of current use mostly is rubber gasket, be characterized in: high temperature resistant, resistance to ozone, resistance to natural weathering, vacuum-resistant, fuel oil resistance, resistance to 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.But the defects such as existing rubber gasket sealing effectiveness is undesirable, wear resistance is poor, intensity is low, far can not meet actual requirement.Therefore research and develop a kind of high-performance rubber gasket and become the task of top priority.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, chlorosulfonated polyethylene rubber/Chloroprene rubber gasket that a kind of excellent property is provided and preparation method thereof.
The technical solution used in the present invention is as follows:
A kind of chlorosulfonated polyethylene rubber/Chloroprene rubber gasket, the weight part of its constitutive material is: chlorosulfonated polyethylene rubber CSM2305 135-145, chloroprene rubber S40V 10-15, SG-2 type polyvinyl chloride resin 10-15, sebacic acid propanediol polyester 2-4, n-BMA 3-5, sodium bicarbonate 1-2, sulphur 0.5-1, calcium stearate 1-2, dimethyl dimercapto 2-ethyl hexyl ethanoate tin 1-2, Nano celestite powder 50-60, nano silicon 40-45, sec.-propyl three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 1-2, oxidation inhibitor 1035 1-2, 3-aminopropyl trimethoxysilane 3-4, dicumyl peroxide DCP1-2, accelerant CZ 1-2, accelerator CBS 0.5-1.5, accelerant N a-22 0.1-0.2, anti-aging agent ODA 1-2, anti-aging agent RD 1-2, modification tree ash 1-2.
Described modification tree ash is obtained by following methods: after first using 10-15% hydrogen peroxide dipping tree ash 2-3h, then with deionized water wash to neutral, dries; Add the nano-sized carbon, the polyisobutene of 1-2%, the tributyl citrate of 2-3%, the ferrocene of 1-2%, the aluminium hydroxide of 3-5% that are equivalent to tree ash weight 2-3%, high speed 4500-4800r/min stirs 20-30min, and ovendry power is broken into ultrafine powder.
The preparation method of chlorosulfonated polyethylene rubber/Chloroprene rubber gasket, comprises the following steps:
(1) by above-mentioned formulation ratio, sent in rubber mixing machine by the raw material prepared and carry out refining glue, glue furnacing temperature controls at 80-90 DEG C, and the refining glue time is 15-20min;
(2) after refining glue completes, taking-up sizing material is paved, after placing cooling 36-48h at normal temperatures, send in vulcanizing press and carry out twice sulfuration, the curing temperature of primary vulcanization controls at 165-175 DEG C, and curing time is 10-15min, and then primary vulcanization is complete carries out second time sulfuration, second time sulfuration is 210-220 DEG C, and curing time is 5-10min, and twice sulfuration pressure is 15-20MPa;
(3) goods completing sulfuration are taken out, through passer, after finishing burr, can finished product be become.
Beneficial effect of the present invention:
The present invention, by carrying out modification to tree ash, can improve flame retardant resistance and the erosion resistance of gasket, and it is low to have cost, the feature of excellent effect.The inorganic nano such as Nano celestite powder, nano silicon powder is with the addition of, the wear resistance of the gasket that can obviously increase and physical strength in the present invention's formula.Gasket of the present invention has good resistance to elevated temperatures, sealing property and flame retardant properties; Corrosion resistance is good, and in acid, alkali, can long term operation in wet goods medium, its volume and changes in hardness little, and do not adhere on the metal surface; Frictional coefficient is little, and wear resistance is good; There is the flexibility be combined with trim; Weather-resistant and ozone ageing performance good, the advantage such as durable in use.
Embodiment
Below in conjunction with specific embodiment, the present invention is further illustrated.
Embodiment
A kind of chlorosulfonated polyethylene rubber/Chloroprene rubber gasket, the weight part of its constitutive material is: chlorosulfonated polyethylene rubber CSM2305 140 parts, chloroprene rubber S40V 15 parts, SG-2 type polyvinyl chloride resin 10 parts, sebacic acid propanediol polyester 3 parts, n-BMA 4 parts, sodium bicarbonate 2 parts, 0.8 part, sulphur, calcium stearate 1.6 parts, 1.8 parts, dimethyl dimercapto 2-ethyl hexyl ethanoate tin, Nano celestite powder 52 parts, nano silicon 44 parts, sec.-propyl three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 1.8 parts, 1,035 1.5 parts, oxidation inhibitor, 3-aminopropyl trimethoxysilane 3 parts, dicumyl peroxide DCP 1 part, accelerant CZ 1.5 parts, accelerator CBS 1 part, accelerant N a-22 0.15 part, anti-aging agent ODA 1.5 parts, anti-aging agent RD 1.5 parts, modification tree ash 2 parts.
Wherein, described modification tree ash is obtained by following methods: after first using 12% hydrogen peroxide dipping tree ash 3h, then with deionized water wash to neutral, dries; Add the nano-sized carbon, the polyisobutene of 2%, tributyl citrate, the ferrocene of 1.5%, the aluminium hydroxide of 4% of 2% that are equivalent to tree ash weight 2%, high speed 4600r/min stirs 25min, and ovendry power is broken into ultrafine powder.
The preparation method of chlorosulfonated polyethylene rubber/Chloroprene rubber gasket, comprises the following steps:
(1) by above-mentioned formulation ratio, sent in rubber mixing machine by the raw material prepared and carry out refining glue, glue furnacing temperature controls at 88 DEG C, and the refining glue time is 16min;
(2) after refining glue completes, taking-up sizing material is paved, after placing cooling 48h at normal temperatures, send in vulcanizing press and carry out twice sulfuration, the curing temperature of primary vulcanization controls at 165 DEG C, and curing time is 15min, and then primary vulcanization is complete carries out second time sulfuration, second time sulfuration is 210 DEG C, and curing time is 8min, and twice sulfuration pressure is 20MPa;
(3) goods completing sulfuration are taken out, through passer, after finishing burr, can finished product be become.
The salient features of the gasket that the present embodiment prepares sees the following form 1.
Table 1
Claims (2)
1. chlorosulfonated polyethylene rubber/Chloroprene rubber gasket, it is characterized in that, the weight part of its constitutive material is: chlorosulfonated polyethylene rubber CSM2305 135-145, chloroprene rubber S40V 10-15, SG-2 type polyvinyl chloride resin 10-15, sebacic acid propanediol polyester 2-4, n-BMA 3-5, sodium bicarbonate 1-2, sulphur 0.5-1, calcium stearate 1-2, dimethyl dimercapto 2-ethyl hexyl ethanoate tin 1-2, Nano celestite powder 50-60, nano silicon 40-45, sec.-propyl three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 1-2, oxidation inhibitor 1035 1-2, 3-aminopropyl trimethoxysilane 3-4, dicumyl peroxide DCP1-2, accelerant CZ 1-2, accelerator CBS 0.5-1.5, accelerant N a-22 0.1-0.2, anti-aging agent ODA 1-2, anti-aging agent RD 1-2, modification tree ash 1-2, described modification tree ash is obtained by following methods: after first using 10-15% hydrogen peroxide dipping tree ash 2-3h, then with deionized water wash to neutral, dries, add the nano-sized carbon, the polyisobutene of 1-2%, the tributyl citrate of 2-3%, the ferrocene of 1-2%, the aluminium hydroxide of 3-5% that are equivalent to tree ash weight 2-3%, high speed 4500-4800r/min stirs 20-30min, and ovendry power is broken into ultrafine powder.
2. a preparation method for chlorosulfonated polyethylene rubber/Chloroprene rubber gasket as claimed in claim 1, is characterized in that comprising the following steps:
(1) by above-mentioned formulation ratio, sent in rubber mixing machine by the raw material prepared and carry out refining glue, glue furnacing temperature controls at 80-90 DEG C, and the refining glue time is 15-20min;
(2) after refining glue completes, taking-up sizing material is paved, after placing cooling 36-48h at normal temperatures, send in vulcanizing press and carry out twice sulfuration, the curing temperature of primary vulcanization controls at 165-175 DEG C, and curing time is 10-15min, and then primary vulcanization is complete carries out second time sulfuration, second time sulfuration is 210-220 DEG C, and curing time is 5-10min, and twice sulfuration pressure is 15-20MPa;
(3) goods completing sulfuration are taken out, through passer, after finishing burr, can finished product be become.
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| CN201210429869.9A CN102993585B (en) | 2012-10-31 | 2012-10-31 | Chlorosulfonated polyethylene rubber/chloroprene rubber gasket and preparation method thereof |
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| CN201210429869.9A CN102993585B (en) | 2012-10-31 | 2012-10-31 | Chlorosulfonated polyethylene rubber/chloroprene rubber gasket and preparation method thereof |
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| CN102993585B true CN102993585B (en) | 2015-06-17 |
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| CN103351495A (en) * | 2013-06-24 | 2013-10-16 | 安徽春辉仪表线缆集团有限公司 | Mixed solvent resistant chloroprene rubber sealing pad and preparation method thereof |
| CN103524930A (en) * | 2013-09-30 | 2014-01-22 | 芜湖航天特种电缆厂 | Cold-resistant PVC sheath material for cable and preparation method thereof |
| CN103524907B (en) * | 2013-09-30 | 2016-03-23 | 芜湖航天特种电缆厂 | A kind of Mine cable rubber sheath material and preparation method thereof |
| CN103613807A (en) * | 2013-11-12 | 2014-03-05 | 铜陵市肆得科技有限责任公司 | Attapulgite modified composite rubber sealing gasket material and preparation method thereof |
| CN105504416B (en) * | 2016-01-19 | 2017-10-13 | 山东美晨先进高分子材料科技有限公司 | A kind of high temperature resistant oil resistant neoprene preparation raw material |
| CN109796648A (en) * | 2019-02-19 | 2019-05-24 | 江苏骆氏减震件有限公司 | A kind of yielding rubber pad material prescription |
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| CN1786066A (en) * | 2005-11-17 | 2006-06-14 | 仝国磊 | Super strong acid resistant rubber material and its preparation method |
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| JP2005048129A (en) * | 2003-07-31 | 2005-02-24 | Japan Atom Energy Res Inst | Radiation-resistant crosslinked polymer composition and radiation-resistant polymer article |
| JP2007092904A (en) * | 2005-09-29 | 2007-04-12 | Nichias Corp | Sheet gasket and its manufacturing method |
| CN102399385B (en) * | 2011-11-17 | 2013-01-30 | 铜陵亿亨达电子有限责任公司 | High-performance explosion-proof rubber sealing cover and preparation method thereof |
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| CN1786066A (en) * | 2005-11-17 | 2006-06-14 | 仝国磊 | Super strong acid resistant rubber material and its preparation method |
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| Title |
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| 改性氯磺化聚乙烯橡胶的性能研究;梁星宇;《世界橡胶工业》;20100630;第37卷(第6期);第1-3页 * |
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