摘要
对不同表面活性剂改性的ＣａＣＯ３ 填料进行研究，并将其应用于硬质ＰＶＣ塑料体系．从接触角、吸水率、表面自由能、粒径分布等方面研究了改性ＣａＣＯ３ 的表面性质．结果表明，改性后的ＣａＣＯ３ 表面疏水亲油、在油中的平均团聚粒径减小．将改性ＣａＣＯ３ 以高比例（ＣａＣＯ３∶ＰＶＣ＝ ５０∶１００）填充于塑料体系，发现用表面活性剂改性的ＣａＣＯ３ 填料可显著改善塑料的加工性能和力学性能．
In this paper,CaCO 3 is modified by different surfactants.It shows that the surface properties of CaCO 3,such as contact angle,amount of oil absorbed,surface energy and granule diameter,change after modification. When filling the treated CaCO 3 into PVC system with high ratio(CaCO 3∶PVC=50∶100), the processing and mechanical properties are far better than the system with untreated CaCO 3 and reach the same level as with titanium ester.
基金
马来西亚国家棕榈研究所国际合作项目
关键词
碳酸钙
改性
表面活性剂
聚氯乙烯
填料
塑料
calcium carbonate
modification
surfactant
PVC plastic
processing property
mechanical property
