亚微米重质碳酸钙的表面改性研究  

Research on Sub - micron Heavy CaCO_3 by Surface Modification

作　　者：张青[1] 毕舒[2] 黄传荣[1] 

机构地区：[1]华南理工大学化工学院,广东广州510640 [2]华南理工大学材料学院,广东广州510640

出　　处：《广州化工》2005年第5期55-56,83,共3页GuangZhou Chemical Industry

摘　　要：采用自制偶联剂S为主要处理剂对亚微米重质碳酸钙(CaCO3)表面进行活化处理。用IR、XRD、TEM等不同手段验证了此方法改性的碳酸钙降低了表面能,颗粒的团聚结合力减弱,呈明显的疏水性,从而使碳酸钙颗粒在塑料加工过程中迅速而均匀地分散到基体之中,表现了较优的填充性能,达到对材料改性的作用。Adopting coupling agent S as major treatment agent, which can be used to surface activate treatment for Sub- micron Heavy CaCO3. Different means, such as IR,XRD,TEM, have been used＇to prove that this modified CaCO3 lowered surface energy, weakened the particle＇ s agglomerating force, appearing obvious hydrophobicity. Then the particle of CaCO3 can be quickly and even dispersed to the basal body, displaying more excellent performance of packing. All these can be modified the materials.

关 键 词：偶联剂 碳酸钙 表面活化 改性 

分 类 号：TQ132.32[化学工程—无机化工] TQ931