氢化丁腈橡胶在油田射孔作业橡胶件中的应用

对兰化公司的LH-9901和LH9902进行了硫化剂、补强剂试验，采用DCP／TAIC／喷雾炭黑可以获得综合性能较好的胶料，并在油田射孔作业橡胶件中进行推广应用。     

氢化丁腈橡胶生产技术及市场发展

本文综述了国内外氢化丁腈橡胶技术进展情况,分析了国内市场应用前景,提出了我国氢化丁腈橡胶发展建议。     

NBR/HNBR共混胶性能的研究

研究了NBR/HNBR共混比对其共混胶硫化特性、力学性能、耐热空气老化性能及耐臭氧性能的影响。结果表明,随着HNBR用量的增大,共混胶硫化时间先缩短后延长,力学性能先降低后升高,耐热空气老化性能提高,耐臭氧老化性能也提高。     

氢化丁腈橡胶耐热老化性能的研究

研究了几种不同类型的防老剂对HNBR耐热空气老化的影响。结果表明,采用防老剂RD与MB并用体系硫化胶的综合性能最好;100份生胶中加入1份防老剂RD和1份防老剂MB,在170℃／15MPaxt90的条件下硫化后硫化胶的拉伸强度为28．3MPa,180℃热空气老化24h后其拉伸强度为274MPa,老化48h后其拉伸强度仍然可迭172MPa。     

氧化锌和氧化镁对HNBR过氧化物硫化体系性能的影响

本文主要研究了氧化锌和氧化镁单用用量及并用对HNBR过氧化物硫化体系性能的影响,结果表明金属氧化物能对过氧化物硫化体系产生活化作用提高胶料的交联密度及耐热性能且氧化锌活性要高于氧化镁,并随其用量增加耐热性能变优;热重分析表明HNBR胶料热降解呈现两个阶段,且5份氧化锌能显著提高胶料的热稳定性能;氧化锌和氧化镁并用比例为7/3时对胶料的耐热性能产生协同作用,耐热性能最佳,但氧化镁对胶料的压缩永久变形性能产生不利影响。     

Some interesting phenomena in silica‐filled HNBR with the addition of silane coupling agent

Hydrogenated nitrile rubber (HNBR)/silica nanocomposites were prepared by in‐situ modification dispersion technology, and the silane coupling agent γ‐methacryloxypropyl trimethoxy silane (KH570) was chosen to promote the interfacial strength between silica particles and HNBR matrix and further improve the dispersion of silica particles. Rubber Process Analyzer (RPA2000) was used to test the Payne effect of HNBR/silica compounds, from which some interesting phenomena were found: the Payne effect became stronger after KH570 was added to HNBR/silica compound at room temperature, which was a contrary result compared to SBR/silica system. However, after stored for a month at room temperature, the Payne effect weakened, which was contrary to the traditional phenomenon of storage hardening of filled rubber. All these results are related to filler–filler interaction and filler–rubber interaction. The modulus at small strain amplitude of HNBR/silica compound with KH570 gradually decreased with the increase of times of circulatory strain sweep but that of compound without KH570 had almost no change, which was explained by Fourier Transform Infrared (FTIR) results that the reaction between silica and KH570 almost completed at the test condition: 80°C and about 1 h. The effects of silane amount, heat‐treated temperature and time on the Payne effect of compounds and the mechanical properties of vulcanizates were also investigated. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012     

风机轴承用夹布油封的研制

研究风机轴承用夹布油封原材料的选择以及在线安装夹布油封的结构设计方法。结果表明:密封材料在热带可选氟橡胶,在寒带宜选耐低温的丁腈橡胶(NBR),海上则选用氢化丁腈橡胶较为适宜;NBR夹布橡胶硫化前吸水率可达4%,硫化后吸水率仍在0.5%～1%之间;NBR夹棉布橡胶的线膨胀系数在5×10-6～8×10-6℃-1之间。     

硅烷偶联剂原位改性白炭黑填充氢化丁腈橡胶（HNBR）复合材料性能研究

研究对比了硅烷偶联剂常温处理和原位改性白炭黑填充HNBR胶料性能,并进一步探索了不同种类的硅烷偶联剂原位改性白炭黑对HNBR复合材料性能的影响。结果表明,硅烷偶联剂原位改性白炭黑填充HNBR胶料的门尼粘度低、拉伸强度高、分散效果好和压缩永久变形小。使用硅烷偶联剂A151原位改性的HNBR胶料的门尼粘度较低,压缩永久变形最小。     

HNBR与EVM的并用研究

研究了丙烯腈质量分数为34%的HNBR橡胶、VA质量分数为70%的EVM橡胶以及两者不同比例的并用胶料的硫化特性、物理机械性能、耐热性、压缩永久变形性、耐油性和耐低温性能。     

氢化丁腈橡胶/有机蒙脱土纳米复合材料的性能

采用熔体插层法制备了氢化丁腈橡胶/有机蒙脱土纳米复合材料,采用透射电镜和X射线衍射仪对复合材料的结构进行了表征,并研究了复合材料的应力应变行为、耐老化性能、耐溶剂性能和动态力学性能。实验结果表明:制备了一种插层型纳米复合材料,复合材料的耐老化性能和耐溶剂性能良好,并且随蒙脱土含量的增大而增加;动态黏弹谱(DMA)测试显示,纳米复合材料的玻璃化转变温度升高,且具有较低的滚动阻力,复合材料的动态力学性能优良。