Abstract

A high hardness and flame retardancy polysiloxane coating was prepared by the sol−gel method and its surface profile, thermal stability and flame retardancy were investigated. The physical properties and surface morphology were significantly effected by the m(R)/m(Si) values and types of silane coupling agents. The hardness of the polysiloxane coating films exhibited an increase as the ratio of m(R)/m(Si) decreases. The addition of KH560 to polysiloxane enabled the formation of hydrophobic property with high hardness and adhesive film on the polyacrylate substrate. The increase in cross-linking degree of the polysiloxane was found to be effective in improving the thermal stability. The microcalorimetry test confirmed that lowest peak heat release rate of polysiloxane was 30.44 W/g and the total heat release was 9.6 kJ/g. This article highlighted the high hardness and flame retardancy properties of the polysiloxane coating that has a potential use in protective films.

中文翻译：

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聚硅氧烷涂料的合成及其高硬度和阻燃性能的研究

摘要

通过溶胶-凝胶法制备了高硬度和阻燃性的聚硅氧烷涂料，并对其表面轮廓，热稳定性和阻燃性进行了研究。硅烷偶联剂的m（R）/ m（Si）值和类型显着影响物理性能和表面形态。随着m（R）/ m（Si）的比率降低，聚硅氧烷涂膜的硬度显示出增加。向聚硅氧烷中添加KH560可以在聚丙烯酸酯基材上形成具有高硬度的疏水性和粘合膜。发现提高聚硅氧烷的交联度对改善热稳定性是有效的。微量热法测试证实，聚硅氧烷的最低峰值放热速率为30.44W / g，总放热为9.6kJ / g。