利用硅烷偶联剂对SiC粉进行处理,使其表面具有一定疏水性,经表面活性剂引入水中形成较稳定的悬浮液.分析了不同硅烷偶联剂处理的SiC粉的悬浮液的特性,结果表明:SiC表面越疏水,其抗沉降性越好,Zeta电位、悬浮液固相含量就越高.选取其中效果较好的一种制备出水基高固相含量(体积分数为55%)陶瓷悬浮液.
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