CN102977581A - Nanometer meerschaum-modified chlorhydrin rubber gasket and preparation method thereof - Google Patents

Nanometer meerschaum-modified chlorhydrin rubber gasket and preparation method thereof Download PDF

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CN102977581A
CN102977581A CN2012104276882A CN201210427688A CN102977581A CN 102977581 A CN102977581 A CN 102977581A CN 2012104276882 A CN2012104276882 A CN 2012104276882A CN 201210427688 A CN201210427688 A CN 201210427688A CN 102977581 A CN102977581 A CN 102977581A
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parts
rubber
nanometer
modification
rubber gasket
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CN102977581B (en
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邢宝山
刘润东
陈坤
郑纤秀
卢佩庆
徐超
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Bengbu Triumph Engineering and Technology Co Ltd
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Bengbu Triumph Engineering and Technology Co Ltd
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Abstract

The invention discloses a nanometer meerschaum-modified chlorhydrin rubber gasket. Raw materials for the nanometer meerschaum-modified chlorhydrin rubber gasket comprise, by weight, 135 to 145 parts of chlorhydrin rubber H45, 10 to 15 parts of butyl rubber CBK139, 5 to 10 parts of chloroprene rubber A-90, 3 to 5 parts of triethyl acetyl citrate, 3 to 5 parts of dibutyl maleate, 1 to 2 parts of dibasic lead phosphate, 1 to 2 parts of sulphur, 3 to 5 parts of zinc oxide, 1 to 2 parts of sodium polyoxyethylene fatty alcohol ether sulfate, 40 to 50 parts of nanometer meerschaum powder, etc. The gasket provided by the invention has the advantages of good high temperature resistance, sealing performance and flame resistance, excellent resistance to corrosion, small changes in its volume and hardness when working in mediums like an acid, an alkali and oil for a long time, no adherency onto the surface of a metal, a small friction coefficient, good wear resistance, flexibility of bonding with a sealing surface, good resistance to weathering ageing and ozone ageing, durability, etc.

Description

Chlorohydrin rubber gasket of a kind of nanometer sepiolite modification and preparation method thereof
Technical field
The present invention relates to a kind of gasket, be specifically related to chlorohydrin rubber gasket of a kind of nanometer sepiolite modification and preparation method thereof.
Background technology
The chlorohydrin rubber gasket is a kind of for the inside such as machinery, equipment, pipeline, the material that seals.Be characterized in: the characteristics such as heat-proof aging and ozone resistance are good, warping strength, elasticity is good, oil resistant, anti-solvent, anti-burning, ventilation property is low, binding property is good, so over-all properties is better than paracril and chloroprene rubber, price is lower than viton and silicon rubber, is widely used in national defense industry and civilian industry.The defectives such as but existing chlorohydrin 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 novel chlorohydrin 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, chlorohydrin rubber gasket of a kind of nanometer sepiolite modification and preparation method thereof is provided.
The technical solution used in the present invention is as follows:
The chlorohydrin rubber gasket of a kind of nanometer sepiolite modification, the weight part of its constitutive material is: chlorohydrin rubber H45 135-145, Isoprene-isobutylene rubber CBK13910-15, chloroprene rubber A-90 5-10, acetyl triethyl citrate 3-5, dibutyl maleate 3-5, dibasic lead phosphite 1-2, sulphur 1-2, zinc oxide 3-5, Polyoxyethylenated alcohol sodium sulfate1-2, nanometer sepiolite powder 40-50, nanometer potter's clay 30-40, carbon black N220 10-15, sec.-propyl two oleic acid acyloxy (dioctyl phosphoric acid acyloxy) titanic acid ester 1-2, oxidation inhibitor 1035 2-3, antioxidant NBC 1-2, antioxidant MB 1-2, accelerant N a-22 1-2, altax 3-4, linking agent TAC 0.5-1, Silane coupling agent KH550 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 the chlorohydrin rubber gasket of nanometer sepiolite modification 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 present invention adds the nanometer sepiolite and chlorohydrin rubber is carried out modification, the wear resistance of the gasket that can obviously increase and physical strength by to formula adjustment.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
The chlorohydrin rubber gasket of a kind of nanometer sepiolite modification, the weight part of its constitutive material is: chlorohydrin rubber H45 142, Isoprene-isobutylene rubber CBK13915, chloroprene rubber A-90 8, acetyl triethyl citrate 4, dibutyl maleate 5, dibasic lead phosphite 1.6, sulphur 1.5, zinc oxide 4, Polyoxyethylenated alcohol sodium sulfate1.8, nanometer sepiolite powder 44, nanometer potter's clay 35, carbon black N220 12, sec.-propyl two oleic acid acyloxy (dioctyl phosphoric acid acyloxy) titanic acid ester 1.8, oxidation inhibitor 1,035 2, antioxidant NBC 1.6, antioxidant MB 1.5, accelerant N a-22 1.5, altax 3, linking agent TAC 0.8, Silane coupling agent KH550 1.5, modification trees ashes 1.5.
Wherein, described modification trees ashes are made by following methods: extremely neutral with deionized water wash again after using first 10% hydrogen peroxide dipping trees ashes 3h, and oven dry; Add and be equivalent to the nano-sized carbon of trees ashes weight 3%, 2% polyisobutene, 3% tributyl citrate, 2% ferrocene, 5% aluminium hydroxide, high speed 4800r/min stirs 30min, and ovendry power is broken into ultrafine powder.
The preparation method of the chlorohydrin rubber gasket of nanometer sepiolite modification 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 90 ℃, and the refining glue time is 15min;
(2) after refining glue is finished, the taking-up sizing material is paved, after placing at normal temperatures cooling 48h, send into and carry out twice sulfuration in the vulcanizing press, the curing temperature of primary vulcanization is controlled at 175 ℃, curing time 15min, primary vulcanization vulcanizes the second time by complete and then carrying out, sulfuration is 215 ℃ for the second time, curing time 8min, and twice sulfuration pressure is 16MPa;
(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 present embodiment prepares sees the following form 1.
Table 1
Figure BDA0000233809531

Claims (3)

1. the chlorohydrin rubber gasket of nanometer sepiolite modification, it is characterized in that the weight part of its constitutive material is: chlorohydrin rubber H45 135-145, isoprene-isobutylene rubber CBK139 10-15, chloroprene rubber A-90 5-10, acetyl triethyl citrate 3-5, dibutyl maleate 3-5, dibasic lead phosphite 1-2, sulphur 1-2, zinc oxide 3-5, polyoxyethylenated alcohol sodium sulfate 1-2, nanometer sepiolite powder 40-50, nanometer potter's clay 30-40, carbon black N220 10-15, sec.-propyl two oleic acid acyloxy (dioctyl phosphoric acid acyloxy) titanic acid ester 1-2, oxidation inhibitor 1035 2-3, antioxidant NBC 1-2, antioxidant MB 1-2, accelerant N a-22 1-2, altax 3-4, linking agent TAC 0.5-1, Silane coupling agent KH550 1-2, modification trees ashes 1-2.
2. the chlorohydrin rubber gasket of nanometer sepiolite according to claim 1 modification, 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 the chlorohydrin rubber gasket of a nanometer sepiolite as claimed in claim 1 modification 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.
CN201210427688.2A 2012-10-31 2012-10-31 Nanometer meerschaum-modified chlorhydrin rubber gasket and preparation method thereof Active CN102977581B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103509297A (en) * 2013-09-05 2014-01-15 安徽省科林电子有限公司 Anti-aging transformer sealing gasket and preparation method thereof
CN103613806A (en) * 2013-11-12 2014-03-05 铜陵市肆得科技有限责任公司 Novel sealing pad material and preparation method thereof
CN103756164A (en) * 2013-12-16 2014-04-30 芜湖万润机械有限责任公司 High-strength rubber sealing gasket material and preparation method thereof
CN107141810A (en) * 2017-05-18 2017-09-08 国家电网公司 A kind of modified silicon rubber and preparation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070075505A1 (en) * 2005-09-29 2007-04-05 Nichias Corporation Sheet-like gasket and process for manufacturing same
CN101386708A (en) * 2008-11-05 2009-03-18 刘金 Automobile sealed liner pad and producing method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070075505A1 (en) * 2005-09-29 2007-04-05 Nichias Corporation Sheet-like gasket and process for manufacturing same
CN101386708A (en) * 2008-11-05 2009-03-18 刘金 Automobile sealed liner pad and producing method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
刘生辉等: "耐油橡胶的研究应用进展", 《特种橡胶制品》 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103509297A (en) * 2013-09-05 2014-01-15 安徽省科林电子有限公司 Anti-aging transformer sealing gasket and preparation method thereof
CN103613806A (en) * 2013-11-12 2014-03-05 铜陵市肆得科技有限责任公司 Novel sealing pad material and preparation method thereof
CN103756164A (en) * 2013-12-16 2014-04-30 芜湖万润机械有限责任公司 High-strength rubber sealing gasket material and preparation method thereof
CN107141810A (en) * 2017-05-18 2017-09-08 国家电网公司 A kind of modified silicon rubber and preparation method thereof

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