共查询到19条相似文献,搜索用时 125 毫秒
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对比研究了环保醚酯类增塑剂RPL-1和几种常用增塑剂对丙烯酸酯橡胶(ACM)门尼黏度、硫化特性、物理机械性能、耐热性、耐低温性及耐油性的影响。结果表明,当增塑剂用量均为15份时,RPL-1比邻苯二甲酸二辛酯(DOP)的增塑效果更佳,添加RPL-1的ACM胶料的门尼黏度低,硫化胶的邵尔A硬度和100%定伸应力小,扯断伸长率和弹性高,耐低温性能优良;与己二酸二辛酯(DOA)相比,添加RPL-1的ACM硫化胶的耐热稳定性高,热空气老化后的物理机械性能变化率小,压缩永久变形大;RPL-1、己二酸二(丁氧基乙氧基乙)酯(TP 95)与ACM的相容性优于DOA和DOP,添加前两者的ACM硫化胶无喷油现象,且性能相当。 相似文献
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朗盛环保生态增塑剂Mesamoll®在NBR中的突出性能 总被引:3,自引:3,他引:0
Melanie Wiedemeier 《橡胶工业》2009,56(9):575-575
NBR因其优良的耐化学品性和物理性能而应用于接触油、燃料和溶剂的橡胶制品中,如胶管、垫圈、隔膜、密封件和输送带. 相似文献
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黑液/高岭土复合物在丁腈橡胶和丁苯橡胶中的应用研究 总被引:3,自引:2,他引:1
通过絮凝沉降法制备了一种复合补强剂——黑液/高岭土复合物(CLK),将其分别与丁腈橡胶(NBR)和丁苯橡胶(SBR)共混制备了NBR/CLK与SBR/CLK复合材料。考察了CLK的添加量对橡胶复合材料硫化特性、交联密度、力学性能、热氧老化性能以及热降解性能的影响。结果表明:随着CLK含量的增加,在NBR/CLK复合材料体系中,焦烧时间、正硫化时间和硫化速度指数先增加而后逐渐降低;交联密度和力学性能则逐渐增大;老化性能及热性能没有显著改善。在SBR/CLK复合材料中,焦烧时间、硫化速度指数先增加而后逐渐降低,正硫化时间先减少而后逐渐增加;交联密度和力学性能则逐渐增大;老化性能没有显著改善,但热性能得到了提高。 相似文献
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研究高芳烃含量的环烷基环保橡胶增塑剂HJA0810(以下简称增塑剂HJA0810)在工业橡胶板胶料中的应用,并与现用机油进行对比。结果表明:与添加机油的胶料相比,添加增塑剂HJA0810的胶料混炼工艺性能和硫化特性相当,硫化胶的物理性能和耐热老化性能提高;随着增塑剂HJA0810用量增大,硫化胶的物理性能和耐热老化性能提高,耐压缩疲劳性能先提高后降低;增塑剂HJA0810可等量或适当增量替代机油应用于工业橡胶板胶料中,改善工业橡胶板胶料的环保性能。 相似文献
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增塑剂在塑料的各种助剂中占有重要地位,采用固体超强酸代替浓硫酸催化合成增塑剂克服了传统方法中采用浓硫酸的许多缺点,将有很大的前景,本文对目前已经采用固体超强酸催化合成增塑剂的应用进行了总结. 相似文献
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研究对比国产石油系环保型橡胶增塑剂HJA1824与进口环保芳烃油(TDAE)和残余芳烃抽提物(RAE)在半钢子午线轮胎胎面胶中的应用。结果表明:增塑剂HJA1824,TDAE和RAE的芳碳率(C_A)均较大(大于18%),环保性能均达到欧盟要求;3种增塑剂胎面胶的混炼工艺性能和硫化特性相当,增塑剂HJA1824胎面胶的耐压缩疲劳性能略好,滚动阻力略低,耐磨性能介于TDAE和RAE胎面胶之间。增塑剂HJA1824可作为绿色轮胎的优选原材料。 相似文献
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以生物基腰果酚(cardanol)原料,对甲苯磺酸为催化剂,与乙酸酐进行酯化反应得到腰果酚乙酸酯(CA);然后,以甲酸为催化剂,双氧水为氧源合成环氧腰果酚乙酸酯(ECA)。考查了双氧水的浓度、甲酸和双氧水用量、反应温度、反应时间等对产品环氧值的影响。确定了最佳工艺条件:n (甲酸) : n (H2O2) : n (CA中双键)=0.2 : 1.5 : 1、反应温度为65 oC、反应时间为6 h。在最优条件下得到的产品为黄色透明油状液体,其环氧值可达到6.8 %。傅里叶红外 (FT-IR) 对CA及ECA进行结构表征,测定了ECA的酸值、加热减量、黏度、热重曲线等。结果表明,ECA符合环保增塑剂的产品性能要求。 相似文献
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《国际聚合物材料杂志》2012,61(14):1130-1146
The present paper investigates the interaction of silica filler in uncompatibilized and compatibilized styrene butadiene rubber/nitrile rubber (SBR/NBR) blends of varying compositions. The use of a dynamic mechanical analyzer as a tool for confirming the compatibility by the addition of dichlorocarbene modified styrene butadiene rubber (DCSBR) in these blends has been described. The addition of silica in uncompatibilized as well as compatibilized blends has been found to be increasing the rheometric-processing characteristics such as maximum viscosity and rate of cure. The magnitude of these values has been found to be higher for compatibilized blends and for 50/50 composition. The optimum cure time has been found to be decreasing with silica loading regardless of the presence of the compatibilizer. The magnitude of optimum cure time has been found to be higher for uncompatibilized system and for the composition with higher SBR content. Enhancement in mechanical properties with the addition of silica has been observed for compatibilized blends, more intensely than uncompatibilized samples. A good correlation between mechanical properties and solvent sorption behavior has also been observed. 相似文献
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Morteza Ganjaee Sari Mohammad Shahbazi Amir Saeid Pakdel 《Polymer-Plastics Technology and Engineering》2013,52(15):1561-1573
Polypropylene, as a thermoplastic polyolefin, possesses advantageous physical, mechanical and thermal characteristics, but also suffers from disapproving lesser properties such as poor dye- and coat-ability. Herein, nanoclay particles and a polyester-amide-based hyperbranched polymer are utilized to improve paint-ability along with mechanical properties. XRD and SEM results rationalize the idea that maleic anhydride-modified polypropylene and hyperbranched polymer together improve the nanoclay dispersion. The corresponding idea of “molecular skateboards” is also developed via rheology measurements. DMA data demonstrate that mechanical characteristics of the hyperbranched polymer-modified samples remain intact or even improved comparing neat polypropylene and contact angle measurements reveal reduction in θ values. 相似文献