化学沉淀法表面修饰重钙及其在PVC中的应用

Surface-modiflcation of GCC by Chemical Precipitation & Its Application as Filler in PVC

作为一种重要的无机填料,研磨重钙的尖锐的棱角和较大的晶体解理面影响了其应用效果,限制了其应用范围。本研究采用化学沉淀法对重钙进行表面修饰,改变了其微观结构和表面性能。温度为20?

As an important inorganic fi ller,both the sharp edge angles and the biggish crystal cleavage plane of GCC infiuence its application effect,confi ne its fi eld of application. The surface microtexture of GCC was refashioned by chemical precipitation method and a thin layer of PCC wasproduced on the surface of GCC. When temperature was 20℃ and lime pulp concentration was 34g/L the best coating effect was reached. After surface-modifying by chemical precipitation,and the end product being applied in PVC,the e...