Effects of phenylethynylsilicon compounds on heat-curable silicone rubber. Part 2.–Phenylethynylvinyldiethoxysilane
Effects of phenylethynylsilicon compounds on heat-curable silicone rubber. Part 2.–Phenylethynylvinyldiethoxysilane
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DOI：
10.1039/jm9920200529
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发表时间：
1992
影响因子：
--
通讯作者：
Shuqi Yu;Shengyu Feng-;Shijun Li;Jianhua Chen;Z. Du
中科院分区：
文献类型：
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作者：
Shuqi Yu;Shengyu Feng-;Shijun Li;Jianhua Chen;Z. Du
研究了（苯乙基）乙烯基二氧基硅烷（PVDES）作为交联剂对热固化硅橡胶（HCSR）的影响。PVDES是硅橡胶的良好交联剂，在一定的用量下可以改善硫化胶的力学性能。部分硫化胶的抗拉强度和撕裂强度可分别达到12.80 MPa和56.4 kN m - 1, 100%延伸时的弹性模量为4.10MPa。PVDES还可以作为硅橡胶的良好的加氢硅化硫化缓凝剂。在100份有机硅胶中加入0.05份或更多的PVDES，可在室温（20±1℃）下保存50天以上。测定了硫化胶的溶胶组分和交联密度。
The effects of (phenylethynyl)vinyldiethoxysilane (PVDES) as a crosslinker on heat-curable silicone rubber (HCSR) have been investigated. PVDES, which can, in certain specific amounts, improve the mechanical properties of vulcanizates, is a good crosslinker of silicone rubber. The tensile strength and the tear strength of some vulcanizates can reach 12.80 MPa and 56.4 kN m–1respectively, and the modulus of elasticity at 100% extension 4.10MPa. PVDES can also be used as a good hydrosilation curing retarder of silicone rubber. By adding 0.05 parts or more of PVDES to 100 parts of silicone gum the stocks could be stored at room temperature (20 ± 1 °C) for more than 50 days. The sol fractions and crosslinking density of the vulcanizates have been also measured.