共查询到20条相似文献,搜索用时 46 毫秒
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研究增塑剂对氢化丁腈橡胶(HNBR)胶料性能的影响。结果表明:添加增塑剂TOTM的HNBR胶料的硫化速度较慢,其硫化胶具有较小的压缩永久变形和优异的耐热空气老化性能;添加增塑剂TP-759的HNBR硫化胶同时具有较好的耐低温和耐热空气老化性能;添加增塑剂TP-90B,TP-759,TP-95和RS107的HNBR硫化胶在901#油中浸泡具有较好的耐抽出性,添加增塑剂DTDA和TOTM的HNBR硫化胶在903#油中浸泡具有较好的耐体积膨胀性。 相似文献
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研究不同牌号乙烯丙烯酸酯橡胶(AEM)及聚酯/聚醚混合型增塑剂种类和用量对硫化胶性能的影响。结果表明:AEM Vamac G硫化胶的耐低温性能较好,而AEM Vamac GLS硫化胶的物理性能、耐老化性能和耐油性能较好,选择并用比为50/50的AEM Vamac G/AEM Vamac GLS并用胶作为主体材料,硫化胶的物理性能、耐油性能和耐低温性能可更好地平衡;添加增塑剂TP-759的硫化胶的耐低温性能较好,添加增塑剂RS-735的硫化胶的耐热老化性能较好,两者耐油性能相当;随着增塑剂用量的增大,硫化胶的耐低温性能提高,拉伸强度降低,拉断伸长率和压缩永久变形增大,油浸泡后体积变化率减小。 相似文献
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研究国产星形支化丁基橡胶S-ⅡR1451混炼胶的门尼松弛性能、流变性能、硫化特性以及硫化胶的物理性能和耐热氧老化性能,并与进口ⅡR301胶料进行对比;以S-ⅡR1451为原材料批量制作了半钢轮胎和全钢轮胎用硫化胶囊进行轮胎生产的实际应用评价,并与ⅡR301商用硫化胶囊进行应用对比。结果表明:与ⅡR301胶料相比,S-ⅡR1451胶料的加工性能相近,但具有更低的挤出胀大比,硫化胶的物理性能和耐热氧老化性能均更优;采用S-ⅡR1451胶料制作的硫化胶囊表现出更优异的耐热氧老化性能,使用寿命比采用ⅡR301胶料的硫化胶囊提高20%以上。 相似文献
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研究国产星型支化丁基橡胶S-IIR1451混炼胶的门尼松弛性能、流变性能、硫化特性以及硫化胶的物理性能和耐热氧老化性能,并与进口IIR301胶料进行对比;以S-IIR1451为原材料批量制作了半钢轮胎和全钢轮胎用硫化胶囊进行轮胎生产的实际应用评价,并与IIR301商用硫化胶囊进行应用对比。结果表明:与IIR301胶料相比,S-IIR1451胶料的加工性能相近,但具有更低的挤出胀大比,硫化胶的物理性能和耐热氧老化性能均更优;采用S-IIR1451胶料制作的硫化胶囊表现出更优异的耐热氧老化性能,使用寿命比采用IIR301胶料的硫化胶囊提高20%以上。 相似文献
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<正>2017年9月17日,《橡胶工业》第10届编委会、《轮胎工业》第8届编委会及两刊通讯员工作会议在上海召开。两刊编委会主任委员马良清介绍了两刊过去两年的发展情况,对各编委和通讯员对两刊的支持表示衷心的感谢,肯定了期刊面对行业严峻形势所做出的努力,鼓励编辑部发扬优良传统,做出精品期刊。2015—2016年度,两刊期刊出版正常,无拖期、漏期、政治和重大技术错误。在第8届全国石油和化工行业优秀报刊评比中,《橡胶工业》《轮 相似文献
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Rubber blends based on epichlorohydrin rubber and carboxylated nitrile rubber can be used as adhesives for aluminium-aluminium bonding. The bond strength depends on blend composition and moulding conditions, such as time, temperature and pressure. Lewis acid/base type interaction is responsible for this type of adhesion. The failure mechanism of the composites was studied by SEM. 相似文献
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Rubber blends based on epichlorohydrin rubber and carboxylated nitrile rubber can be used as adhesives for aluminium-aluminium bonding. The bond strength depends on blend composition and moulding conditions, such as time, temperature and pressure. Lewis acid/base type interaction is responsible for this type of adhesion. The failure mechanism of the composites was studied by SEM. 相似文献
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橡胶颗粒型弹性地砖的研制 总被引:3,自引:0,他引:3
介绍了以环氧丙烷聚醚多元醇、甲苯二异氰酸酯、橡胶颗粒等为主要原料,采用预聚物法制备了橡胶胶粒型弹性橡胶地砖用聚氨酯胶粘剂,考察了聚醚多元醇种类、配比、异氰酸酯指数等对材料物理性能的影响,并对工艺性能进行了研究。结果表明,采用二官能度和三官能度混合聚醚(20~40:80~60),异氰酸酯指数为1.05~1.07,固化促进剂量为0.16%~0.24%时,材料的物理性能及工艺性能均较好。 相似文献
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The autohesion data are gathered for poly(dimethyl siloxane) (PDMS) with different molecular weights. The influence of molecular weight of the polymer is very pronounced. The data are interpreted on basis of the Wool-deGennes reptation theory; the application of first order kinetics of wetting is also tested. PDMS with a molecular weight only partially permitting the formation of entanglements exhibits a remarkably different and unusual behavior compared with the high molecular weight polymers. The latter develop tack in the form of logarithmic type curves, while the former show the presence of local maxima in the tack-time curves. 相似文献
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Blends of ENR (epoxidized natural rubber) with CR (chloroprene rubber) were prepared throughout the composition, and important properties of the vulcanizates, both unaged and aged (air and oil) rubber, were determined. Dynamic measurement showed a single tan δ peak for the blends, and the peak temperature monotonically decreased with increasing CR content, resulting also in an increase of resilience at room temperature. Flex crack resistance of CR above room temperature, and oil resistance of ENR were increased in the blends. 相似文献