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气相法二氧化硅是高科技纳米材料。介绍其赋予材料的与众不同的性能,论述发展气相法二氧化硅的重要性,重点分析国内气相法二氧化硅的生产状况、技术状况、存在的问题和市场情况。 相似文献
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纳米二氧化硅是一种多功能的添加剂,广泛应用于硅橡胶、涂料、油墨、医药、造纸、食品、化妆品、化学机械抛光等行业,可起到补强、增稠、触变、消光等作用,它是一种在世界范围内真正工业化的纳米材料。 相似文献
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Shen Diao Shengyou Zhang Zhizhou Yang Shengyu Feng Changqiao Zhang Zhaohua Wang Guogang Wang 《应用聚合物科学杂志》2011,120(4):2440-2447
Two kinds of treated fumed silica were prepared by treatment with either tetraphenylphenyltriethoxysilane (TPHTS) or both tetraphenylphenyltriethoxysilane and hexamethyldisilazane (TPHMTS), and were used as reinforcing filler for silicone rubber. The resistance to irradiation of the silicone rubber obtained was investigated by gamma ray of dose 500 kGy in air. The mechanical properties and the average molecular weight between crosslinking points (Mc) of the silicone rubber were determined before and after irradiation. The results show that the fumed silica treated by tetraphenylphenyltriethoxysilane (TPHPHS) can effectively improve the radiation resistance of silicone rubber while the fumed silica treated by both tetraphenylphenyltriethoxysilane and hexamethyldisilazane (MMN) cannot only effectively improve the radiation resistance of silicone rubber but also has excellent reinforcing effect on silicone rubber. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2011 相似文献
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氧化硅与氧化铝填充高硬度硅橡胶 总被引:4,自引:0,他引:4
以Wacker R401/70S为基础,通过加入气相二氧化硅或氧化铝获得了高硬度的硅橡胶。研究表明,通过加入气相二氧化硅和氧化铝可以由硬度为70(邵尔A)的硅橡胶制得硬度为90(邵尔A)的硅橡胶,为达到同样的硬度前者比后者的用量小得多,但采用后者作填料时具有更好的热稳定性;采用有机硅烷偶联剂可以显著改善高硬度硅橡胶的机械性能和热稳定性,用有机硅烷偶联剂对无机填料进行处理后再加入硅橡胶,比直接将偶联剂加入硅橡胶效果要好;加入氧化铈可以显著改善高硬度硅橡胶的热稳定性。 相似文献