CN103408814A - High-temperature/pressure-resistant sealing gasket for heat exchangers and preparation method thereof - Google Patents
High-temperature/pressure-resistant sealing gasket for heat exchangers and preparation method thereof Download PDFInfo
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- CN103408814A CN103408814A CN2013102730856A CN201310273085A CN103408814A CN 103408814 A CN103408814 A CN 103408814A CN 2013102730856 A CN2013102730856 A CN 2013102730856A CN 201310273085 A CN201310273085 A CN 201310273085A CN 103408814 A CN103408814 A CN 103408814A
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Abstract
The invention discloses a high-temperature/pressure-resistant sealing gasket for heat exchangers and a preparation method thereof. The high-temperature/pressure-resistant sealing gasket for heat exchangers is prepared from butadiene styrene rubber, cis-1,4-polybutadiene rubber, poly-4-methyl-1-pentylene, glycerol triglycerin acid ester, modified nano ceramic, nano kieselguhr, carbon fiber, carbon black N660, talcum powder, aluminum hydroxide, di-n-butyl nylonic acid ester, epoxy soybean oil, N-4-(anilinophenyl)maleimide and other raw materials. By performing organic composite modification with nano aluminum nitride, nano titanium carbide, nano zirconium boride and many types of nano ceramic powder, the compatibility with rubber can be enhanced; and when being used for filling a modified rubber material to prepare the sealing gasket, the modified nano ceramic powder can obviously enhance the heat resistance, abrasion resistance, mechanical strength and other properties of the sealing gasket.
Description
Technical field
The present invention relates to a kind of gasket and preparation method thereof, be specifically related to a kind of high temperature high voltage resistant interchanger gasket and preparation method thereof.
Background technology
Gasket is an important component part of interchanger, is used for working medium is separated, and carries out thermal exchange by this plate.The Working environment of interchanger is very harsh, and extreme service presure can reach 32bar, and the use temperature scope is 40-170 ℃ usually, so the over-all properties of gasket, is the important indicator of weighing heat exchanger performance.The defects such as yet existing gasket sealing property is undesirable, thermotolerance is poor, ultimate compression strength is low, compression resilience is poor, oil-proofness is poor, far can not meet the common job requirement of interchanger, easily cause the phenomenons such as expansion, aging cracking, leakage of oil, thereby cause interchanger to work.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, provide a kind of high temperature resistant, ultimate compression strength is high, compression set is little interchanger with gasket and preparation method thereof.
The technical solution used in the present invention is as follows:
A kind of high temperature high voltage resistant interchanger gasket, raw material by following weight part is made: styrene-butadiene rubber(SBR) (SBR1712) 100-120, cis-1,4-polybutadiene rubber (BR9000) 30-50, poly--4-methyl-1-pentene 20-30, glycerol glycerinate 5-8, modified Nano pottery 15-25, nano diatomite 10-15, carbon fiber 5-10, carbon black N660 15-20, talcum powder 5-10, aluminium hydroxide 3-6, di-butyl nylonic acid ester 4-8, epoxy soybean oil 5-7, N-4 (anilino phenyl) maleimide 2-3, insoluble sulfur 2-3, 2-thiol group benzimidazolyl 1-2, magnesium oxide 2-3, lanthanum trioxide 1-2, calcium stearate 1-2, Zinic stearas 2-3, accelerant NOBS 1-2, promotor ZDMC 3-4.
Described modified Nano pottery is to be made by the raw material of following weight parts:
Nano aluminum nitride 20-30, nano titanium carbide 10-15, nanometer zirconium boride 99.5004323A8ure 8-12, glass powder 2-3, polyoxyethylenated alcohol sodium sulfate 3-5, polyvinylpyrrolidone 12-16, calcium lignin sulphonate 5-10, trifluoro propyl methyl-silicone oil 20-30, polyvinyl acetate emulsion 60-80, Di(dioctylpyrophosphato) ethylene titanate 2-3, butyl glycol ether 3-5, Lauryl Alcohol ester 4-7;
Nano aluminum nitride, nano titanium carbide, nanometer zirconium boride 99.5004323A8ure, glass powder are mixed and puts into ball mill, add polyoxyethylenated alcohol sodium sulfate, calcium lignin sulphonate and Di(dioctylpyrophosphato) ethylene titanate, 5000-8000rpm high speed ball milling 10-15min, take out and dry, with trifluoro propyl methyl-silicone oil, polyvinyl acetate emulsion, butyl glycol ether, Lauryl Alcohol ester, mix, 2000-3000rpm high speed dispersion 20-30min, filter, dry, pulverize porphyrize, cross the 200-300 mesh sieve and get final product.
A kind of high temperature high voltage resistant interchanger preparation method of gasket, comprise the following steps: get cis-1,4-polybutadiene rubber, poly--4-methyl-1-pentene, modified Nano pottery, glycerol glycerinate and add twin screw extruder in 155-175 ℃ of lower blending extrusion by formula rate, after placing 24-36h, add in mill in proportion with after styrene-butadiene rubber(SBR) mixes, add again all the other raw materials under 85-95 ℃, to refine glue 3-5min, 6-9 rear lower sheet of thin-pass; By film vulcanizing press compression moulding under 16-22MPa pressure, then carry out twice sulfidizing, the curing temperature of primary vulcanization is controlled at 175-185 ℃, curing time is 4-6min, vulcanize for the second time in baking oven and carry out, curing temperature is 205-215 ℃, and curing time is 3-4h, deburring, check, packing, get product.
Beneficial effect of the present invention:
The present invention adopts nano aluminum nitride, nano titanium carbide, the multiple nano ceramics of nanometer zirconium boride 99.5004323A8ure end to carry out the organic composite modification, can improve the consistency of itself and rubber, nano ceramics end after modification prepares gasket for filling-modified elastomeric material, can obviously improve the performances such as thermotolerance, wear resistance and physical strength of gasket.The gasket excellent combination property that the present invention produces, good sealing effect, physical strength is high, rebound resilience good, volume change is little, high oil resistant; Also have the advantages such as good chemical stability, high thermal resistance, ageing-resistant, wear resistance, durable in use.
Embodiment
A kind of high temperature high voltage resistant interchanger gasket, raw material by following weight (kg) is made: styrene-butadiene rubber(SBR) (SBR1712) 110, cis-1,4-polybutadiene rubber (BR9000) 40, poly--4-methyl-1-pentene 25, glycerol glycerinate 6, modified Nano pottery 20, nano diatomite 12, carbon fiber 8, carbon black N660 18, talcum powder 8, aluminium hydroxide 4, di-butyl nylonic acid ester 6, epoxy soybean oil 5, N-4 (anilino phenyl) maleimide 2, insoluble sulfur 3, 2-thiol group benzimidazolyl 1.5, magnesium oxide 2, lanthanum trioxide 2, calcium stearate 1.5, Zinic stearas 3, accelerant NOBS 2, promotor ZDMC 3.
Described modified Nano pottery is to be made by the raw material of following weight (kg):
Nano aluminum nitride 25, nano titanium carbide 12, nanometer zirconium boride 99.5004323A8ure 10, glass powder 2, polyoxyethylenated alcohol sodium sulfate 4, polyvinylpyrrolidone 14, calcium lignin sulphonate 8, trifluoro propyl methyl-silicone oil 25, polyvinyl acetate emulsion 70, Di(dioctylpyrophosphato) ethylene titanate 2, butyl glycol ether 4, Lauryl Alcohol ester 6;
Nano aluminum nitride, nano titanium carbide, nanometer zirconium boride 99.5004323A8ure, glass powder are mixed and puts into ball mill, add polyoxyethylenated alcohol sodium sulfate, calcium lignin sulphonate and Di(dioctylpyrophosphato) ethylene titanate, 6000rpm high speed ball milling 12min, take out and dry, with trifluoro propyl methyl-silicone oil, polyvinyl acetate emulsion, butyl glycol ether, Lauryl Alcohol ester, mix 3000rpm high speed dispersion 20min, filter, dry, pulverize porphyrize, cross 300 mesh sieves and get final product.
A kind of high temperature high voltage resistant interchanger preparation method of gasket, comprise the following steps: get cis-1,4-polybutadiene rubber, poly--4-methyl-1-pentene, modified Nano pottery, glycerol glycerinate and add twin screw extruder in 160 ℃ of lower blending extrusions by formula rate, after placing 36h, add in mill in proportion with after styrene-butadiene rubber(SBR) mixes, add all the other raw materials under 85 ℃, to refine glue 5min, thin-pass is descended sheet 8 times afterwards again; By film vulcanizing press compression moulding under 20MPa pressure, then carry out twice sulfidizing, the curing temperature of primary vulcanization is 180 ℃, curing time is 5min, vulcanize for the second time in baking oven and carry out, curing temperature is 210 ℃, and curing time is 3h, deburring, check, packing, get product.
Gasket Performance Detection of the present invention is as follows:
Claims (2)
1. high temperature high voltage resistant interchanger gasket, it is characterized in that, raw material by following weight part is made: styrene-butadiene rubber(SBR) (SBR1712) 100-120, cis-1,4-polybutadiene rubber (BR9000) 30-50, poly--4-methyl-1-pentene 20-30, glycerol glycerinate 5-8, modified Nano pottery 15-25, nano diatomite 10-15, carbon fiber 5-10, carbon black N660 15-20, talcum powder 5-10, aluminium hydroxide 3-6, di-butyl nylonic acid ester 4-8, epoxy soybean oil 5-7, N-4 (anilino phenyl) maleimide 2-3, insoluble sulfur 2-3, 2-thiol group benzimidazolyl 1-2, magnesium oxide 2-3, lanthanum trioxide 1-2, calcium stearate 1-2, Zinic stearas 2-3, accelerant NOBS 1-2, promotor ZDMC 3-4,
Described modified Nano pottery is to be made by the raw material of following weight parts:
Nano aluminum nitride 20-30, nano titanium carbide 10-15, nanometer zirconium boride 99.5004323A8ure 8-12, glass powder 2-3, polyoxyethylenated alcohol sodium sulfate 3-5, polyvinylpyrrolidone 12-16, calcium lignin sulphonate 5-10, trifluoro propyl methyl-silicone oil 20-30, polyvinyl acetate emulsion 60-80, Di(dioctylpyrophosphato) ethylene titanate 2-3, butyl glycol ether 3-5, Lauryl Alcohol ester 4-7;
Nano aluminum nitride, nano titanium carbide, nanometer zirconium boride 99.5004323A8ure, glass powder are mixed and puts into ball mill, add polyoxyethylenated alcohol sodium sulfate, calcium lignin sulphonate and Di(dioctylpyrophosphato) ethylene titanate, 5000-8000rpm high speed ball milling 10-15min, take out and dry, with trifluoro propyl methyl-silicone oil, polyvinyl acetate emulsion, butyl glycol ether, Lauryl Alcohol ester, mix, 2000-3000rpm high speed dispersion 20-30min, filter, dry, pulverize porphyrize, cross the 200-300 mesh sieve and get final product.
2. a high temperature high voltage resistant interchanger as claimed in claim 1 is by the preparation method of gasket, it is characterized in that comprising the following steps: get cis-1,4-polybutadiene rubber, poly--4-methyl-1-pentene, modified Nano pottery, glycerol glycerinate and add twin screw extruder in 155-175 ℃ of lower blending extrusion by formula rate, after placing 24-36h, add in mill in proportion with after styrene-butadiene rubber(SBR) mixes, add again all the other raw materials under 85-95 ℃, to refine glue 3-5min, 6-9 rear lower sheet of thin-pass; By film vulcanizing press compression moulding under 16-22MPa pressure, then carry out twice sulfidizing, the curing temperature of primary vulcanization is controlled at 175-185 ℃, curing time is 4-6min, vulcanize for the second time in baking oven and carry out, curing temperature is 205-215 ℃, and curing time is 3-4h, deburring, check, packing, get product.
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| CN2013102730856A CN103408814A (en) | 2013-07-01 | 2013-07-01 | High-temperature/pressure-resistant sealing gasket for heat exchangers and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104277272A (en) * | 2014-10-27 | 2015-01-14 | 安徽锐视光电技术有限公司 | High-elongation anti-aging synthetic rubber for color sorter and preparation method of high-elongation anti-aging synthetic rubber |
| CN104277264A (en) * | 2014-10-27 | 2015-01-14 | 安徽锐视光电技术有限公司 | High-temperature-resistant synthetic rubber for color sorter and preparation method of high-temperature-resistant synthetic rubber |
| CN104277265A (en) * | 2014-10-27 | 2015-01-14 | 安徽锐视光电技术有限公司 | Weatherproof synthetic rubber for color sorter and preparation method of weatherproof synthetic rubber |
| CN106084801A (en) * | 2016-06-06 | 2016-11-09 | 淮南曹庵润龙塑业有限公司 | Fluorubber sealing gasket that a kind of calcium titanium fiber strengthens and preparation method thereof |
| CN106751438A (en) * | 2016-12-16 | 2017-05-31 | 安徽亚兰密封件有限公司 | A kind of heat resistant and wear resistant modified rubber seal |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104277272A (en) * | 2014-10-27 | 2015-01-14 | 安徽锐视光电技术有限公司 | High-elongation anti-aging synthetic rubber for color sorter and preparation method of high-elongation anti-aging synthetic rubber |
| CN104277264A (en) * | 2014-10-27 | 2015-01-14 | 安徽锐视光电技术有限公司 | High-temperature-resistant synthetic rubber for color sorter and preparation method of high-temperature-resistant synthetic rubber |
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| CN104277265B (en) * | 2014-10-27 | 2016-06-15 | 安徽锐视光电技术有限公司 | A kind of color selector weathering resistance synthetic rubber and preparation method thereof |
| CN106084801A (en) * | 2016-06-06 | 2016-11-09 | 淮南曹庵润龙塑业有限公司 | Fluorubber sealing gasket that a kind of calcium titanium fiber strengthens and preparation method thereof |
| CN106751438A (en) * | 2016-12-16 | 2017-05-31 | 安徽亚兰密封件有限公司 | A kind of heat resistant and wear resistant modified rubber seal |
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