利用钛酸酯NDZ-201调控了纳米碳酸钙的表面性能,用反气相色谱(IGC)和直剪试验表征了纳米碳酸钙表面物理化学性能和粒子团聚性能,并用透射电子显微镜(TEM)观察分析了纳米碳酸钙在聚苯乙烯基体中分散形态.研究结果表明,在NDZ-201用量为2%(以碳酸钙质量分数计)左右时,纳米碳酸钙粒子具有较小的表面吸附能力和团聚强度,纳米碳酸钙具有较好的可分散性.过量的偶联剂NDZ-201会在碳酸钙粒子间起到润滑效果,降低粒子间的内摩擦系数,使粒子在剪切分散过程中的可分散性变差.
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