超分散剂对重质碳酸钙的两亲性改性研究  

Amphipathic property of heavy calcium carbonate powder modified with hyperdispersant

作　　者：陆树新[1] 张秋禹[1] 周桓[1] 金凤[1] 徐庶[1] 

机构地区：[1]西北工业大学应用化学系,陕西西安710072

出　　处：《化学工程》2009年第10期54-57,61,共5页Chemical Engineering(China)

摘　　要：采用聚酯型两亲超分散剂对超细重质碳酸钙填料进行表面改性。借助傅里叶红外光谱、旋转黏度仪、激光粒度仪和电子扫描电镜等对碳酸钙的改性效果进行了分析表征。结果表明:聚酯型两亲超分散剂对重质碳酸钙的改性效果良好,与未改性的碳酸钙相比,改性后的碳酸钙粒径分布变窄,吸油值降低,改性碳酸钙与液体石蜡的相容性好,在聚乙烯和水中都能均匀分散,体现了良好的亲油亲水性能。The superfine heavy calcium carbonate panicles were modified by polyester-type amphiphilic hyperdispersant. Different means such as Fourier Transform Infrared （FTIR） , Rotary Viscometer, Laser Particle Size Analyzer, Scanning Electron Microscope （SEM） were used for analyzing and characterizing the modified calcium carbonate. The results indicate that the polyester-type arnphiphilic hyperdispersant has a modification effect on the heavy. Compared with the unmodified calcium carbonate, the modified calcium carbonate has four characteristics ： narrower panicle diameter distribution, lower absorption oil value, better compatibility with liquid, and better dispersibility in polyethylene and water. paraffin

关 键 词：超分散剂 重质碳酸钙 两亲性 改性 

分 类 号：TQ132.32[化学工程—无机化工]