关于硼酸酯偶联剂的简略介绍？
无机粉体外表经铝酸酯偶联剂改性后用于复合制品中，偶联剂的亲无机端与亲有机端能分别与无机填料外表和有机树脂产生化学反应或形成缠结结构。
硅烷偶联剂：硅烷偶联剂的结构和机理
偶联剂是一种重要的、应用领域日渐广泛的处理剂，主要用作高分子复合材料的助剂。偶联剂分子结构的特点是分子中含有化学性质不同的两个基团，一个是亲无机物的基团易与无机物表面起化学反应；另一个是亲有机物的基团，能与合成树脂或其它聚合物发生化学反应或生成氢键溶于其中。
硅烷偶联剂：硅烷偶联剂的功能
一、交联
硅烷偶联剂一旦被接枝到聚合物主链中，它可以通过硅氧烷键的形成将聚合物分子连接到一起，从而产生一个三维的网状结构。这种“交联”被周围的潮气活化，这种活化在室温下即可进行。硅烷可为涂料、粘合剂、密封剂和复合材料提供更佳的的热稳定性，抗蠕变性、硬度和抗化学性。
偶联剂：根据不同填料选择适当的偶联剂
偶联剂按化学结构一般可分为：硅烷偶联剂、钛酸酯偶联剂及其他类偶联剂。一般来说，偶联剂两端的官能团分别与填料的分散相和基质聚合物进行反应。因填料不同，偶联效果差别很大，例如硅烷偶联剂对于二氧化硅、三氧化二铝、玻璃纤维、陶土、硅酸盐、碳化硅等有显著效果，对滑石粉、粘土、氢氧化铝、硅灰石、铁粉、氧化铝等效果稍差些，对石棉、二氧化钛、三氧化二铁等效果不太大，对碳酸钙、石墨、炭黑、硫酸钡、硫酸钙等效果很小。
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