Toughening of Polypropylene with Calcium Sulfate Whiskers Treated by coupling Agents

摘要：

Calcium sulfate whiskers are modified by three kinds of coupling agents. The modified calcium sulfate whiskers are then introduced into polypropylene to prepare calcium sulfate whiskers/PP composites. Mechanical strength tests show that notched izod impact of polypropylene increases dramatically by adding calcium sulfate whiskers. When a silicane coupling agent KH-570 is adopted to modify calcium sulfate whiskers at 30 ％ (w/w) of whiskers, the notched izod impact of composites can increase by nearly 60 ％. SEM is utilized to observe the impact fracture surface morphology of the composites and the distribution of calcium sulfate whiskers in the PP matrix. The results indicate that the surface treatment can promote uniform distribution of calcium sulfate whiskers in the PP matrix, and improve the notched izod impact and toughness of composites.Coupling agents play a role in toughening for the calcium sulfate whiskers/PP composites.

关键词： calcium sulfate whiskers polypropylene coupling agents notched izod impact toughening

作者: Wang Xiaoli Zhu Yimin Han Yuexin Yuan Zhitao Yin wanzhong

作者单位: School of Resources and Civil Engineering,Northeastem University,Box 265,No.11,Lane3,Wenhua Road,Heping District,Shenyang,Liaoning,China

会议类型: 国际会议

会议名称: 2008国际粉体技术与应用论坛暨全国粉体产品与设备应用技术交流大会

会议地点: 北京

会议语种:英文

页码: 225-229

在线出版日期: 2008-04-01（万方平台首次上网日期，不代表论文的发表时间）