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采用正交设计法研究硫化剂DCP/TCY并用硫化体系中硫化剂和促进剂用量对三元乙丙橡胶(EPDM)/丙烯酸酯橡胶(ACM)并用胶物理性能的影响。结果表明:硫黄和氧化锌用量对EPDM/ACM并用胶拉伸强度有显著影响,硫化剂DCP用量对拉伸强度有一定影响;硫化剂DCP、TCY和硫黄用量均对撕裂强度有显著影响,氧化锌用量对撕裂强度有一定影响;硫化剂DCP、促进剂DM和氧化锌用量对并用胶的耐热老化性能有影响;在正交设计试验范围内,并用胶综合性能较好的优化配方为:硫化剂DCP 3,硫化剂TCY 2,硫黄0.3,促进剂DM 0.25,氧化锌5。 相似文献
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研究过氧化物品种、硫化剂DCP和助交联剂TAIC用量以及硫化剂种类对氟橡胶性能的影响.结果表明:在过氧化物BIPB,DBPMH,DCP,DCBP和BPO中,DCP硫化的氟橡胶综合物理性能较好,压缩永久变形较小;随着硫化剂DCP用量的增大,氟橡胶的压缩永久变形呈减小趋势,硫化剂DCP用量为3份时,氟橡胶的物理性能较好,压缩永久变形较小;随着助交联剂TAIC用量的增大,氟橡胶的压缩永久变形呈减小趋势,助交联剂TAIC用量为5份时,氟橡胶的压缩永久变形较小;硫化剂DCP硫化的氟橡胶耐压缩永久变形性能优于3#硫化剂,但不如双酚AF/BPP. 相似文献
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通过对几种钻钼催化剂用硫化剂性能的对比,为苯加氢预反应器催化剂选定二甲基二硫(DMDS)为硫化剂。 相似文献
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研究硫化体系对丁苯橡胶(SBR)/天然橡胶(NR)并用胶性能的影响。结果表明:当硫化体系的总有效硫质量份为0.86时,在硫化剂S-80用量为0.8份、促进剂TMTD用量为0.4份、硫化剂DTDM-80用量为1.5份时,并用胶的综合性能最佳,适用于大多数橡胶制品的生产;在促进剂TMTD的用量为0.4份时,硫化剂S-80和DTDM-80的配比对并用胶的物理性能和耐热老化性能均有很大影响,通过调整硫化剂S-80和DTDM-80的用量,可以得到适用于不同场合的、综合性能优异的SBR/NR并用胶。 相似文献
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研究硫化剂DCP和助交联剂TAC用量对氢化丁腈橡胶(HNBR)胶料性能的影响。结果表明:当助交联剂TAC用量为3份时,随着硫化剂DCP用量的增大,HNBR胶料的焦烧时间和正硫化时间缩短,硫化胶的物理性能提高,压缩永久变形明显减小,耐热氧老化性能有所改善;当硫化剂DCP用量为4份时,随着助交联剂TAC用量的增大,HNBR胶料的门尼粘度降低,硫化胶的定伸应力增大,压缩永久变形减小,耐热氧老化性能变化不大;硫化剂DCP和助交联剂TAC用量对HNBR硫化胶浸油后的物理性能有一定影响,但对体积膨胀率影响不大。 相似文献
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ACM/FKM并用胶耐热性和耐油性研究 总被引:5,自引:1,他引:5
笔者是以ACM和FKM为主要原料研究耐热性和耐油性的材料,对其合成所采用的配合剂(如填充剂、加工助剂、加工助剂、防老剂、吸酸剂和硫化促进剂)、二段硫化条件及硫化条件对样品的性能(如耐热性、耐油性和压缩永久变形)进行了探讨,实验结果显示:ACM/FKM合金其耐热性接近氟橡胶,而耐油性接近ACM。 相似文献
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In this study, we aimed to reduce the cure time, and to lower the cure temperature of the benzoxazine compound. Therefore, curing reaction of benzoxazine with bisoxazoline or epoxy resin using the latent curing agent and the properties of the cured resins were investigated. The cure behavior of benzoxazine with bisoxazoline or epoxy resin using the latent curing agent was monitored by differential scanning calorimetry and measurements for storage modulus (G′). The properties of the cured resin were estimated by mechanical properties, electrical insulation, water resistance, heat resistance, and flame resistance. As a result, it was confirmed that by using the latent curing agent, cure time of benzoxazine and bisoxazoline or epoxy resin was reduced, and cure temperature was lowered. And it was found that the curing reaction using phenol‐novolac based benzoxazine (Na) as the benzoxazine compound could proceed more rapidly than that using bisphenol‐A based benzoxazine (Ba) as the benzoxazine compound. However, the cured resins from Ba and bisoxazoline or epoxy resin using the latent curing agent showed good heat resistance, flame resistance, and mechanical properties compared with those from Na and bisoxazoline or epoxy resin using the latent curing agent. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009 相似文献
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In this study, we aimed to prepare and characterize glass fiber‐reinforced composites (GFRP) based on benzoxazine resins. Therefore, the molten resin from benzoxazine and bisoxazoline with the latent curing agent was used as the matrix resin, and the properties of GFRP based on the molten resins were investigated. The properties of GFRP were estimated by mechanical properties, heat resistance, and flame resistance. As a result, it was found that GFRP based on the molten resins from benzoxazine and bisoxazoline with the latent curing agent showed good heat resistance, flame resistance, and mechanical properties compared with those of the conventional GFRP. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009 相似文献
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本文主要研究了多功能交联剂WY9188、HV-268、WK901对TBR胎面胶性能的影响。结果表明,多功能交联剂的加入一定程度上可改善胶料的抗硫化返原性能、物理机械性能、滚动阻力以及磨耗性能,其中,WY9188作为一种新型的多功能交联剂具有较为突出的综合优势,在填加量为0.5phr时胶料具有较好的力学性能并且能很好地平衡轮胎抗湿滑性、滚动阻力和磨耗特性。 相似文献
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氟橡胶(FKM)具有耐高温、耐油及耐多种化学药品侵蚀的特点,但加工性能不好,本文通过氟橡胶与氯醚橡胶(CO)并用改性,结果表明,CO的加入改善了FKM的加工性能,当CO并用份数少于40份时,FKM为连续相,CO超过40份时,CO转变为连续相。FKM/CO并用胶需用双硫化体系硫化,当FKM采用AF/BPP硫化时,CO采用NA-22/MgO或TCY/MgO/CaCO3硫化体系,并用胶有较好的硫化效果。 相似文献
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论述了SW861抗皱整理剂的合成、性能和使用条件.该整理剂系以新型的高分子脲醛、聚丙烯酸酯、有机硅酮体为主体的多功能抗皱整理剂,特别是真丝织物经SW861抗皱整理剂整理后,有在不影响其强力伸长的条件下,提高织物的抗皱弹性和耐磨性. 相似文献