Study on Mechanical Properties of PP Modified by β Nucleating Agent under the low temperature

摘要：

　　The ethylene-propylene polymer(PP) was modified by using a rare earth β-nucleatingagent (WBG-ll).The crystallization characteristics of PP induced by WBG-Ⅱ were investigatedthrough the wide-angle X-ray diffraction(WAXD).The effect of β-nucleating agent on themechanical property of PP under low temperature was also researched.The results confirmed thatβ-nucleating agent WBG-Ⅱ can change the crystal structure of PP and induce the β-form crystals inthe PP to develop.Moreover,under the room temperature,with the increment of WBG-Ⅱ,the tensilestrength,bending strength and modulus of the modified PP increase,but the impact strength andelongation at break decrease; and especially at-10 ℃,this tendency is more obvious.

关键词： Propylene-ethylene polymer Rare earth β-nucleating agent β-form crystal Mechanical properties Low temperature

作者: Jiang Zhu Xiang Liu Qiang Xu Liang Cao

作者单位: Chongqing Key Laboratory of Micro/Nano Materials Engineeing and Techonolgy, ChongQing University of ChongQing University of Arts and Sciences, ChongQing 402160, P.R.China

会议类型: 国际会议

会议名称: 2nd International Conference on Polymer Composities and Polymer Testing (2013第二届高分子复合材料与高分子测试国际会议暨先进工业技术与方案国际会议)(ISPCPT2013)

会议地点: 太原

会议语种:英文

页码: 214-218

在线出版日期: 2013-03-22（万方平台首次上网日期，不代表论文的发表时间）