中国塑料

中国塑料 ›› 2008, Vol. 22 ›› Issue (03): 18-22 .DOI: 10.19491/j.issn.1001-9278.2008.03.004

• 材料与性能 • 上一篇    下一篇

载银纳米二氧化钛对聚丙烯结晶性能影响

蒋东升，王永忠，卢康利，杨晋涛，钟明强   

  1. 浙江工业大学化学工程与材料学院，浙江杭州，310014
  • 收稿日期:2007-10-28 修回日期:1900-01-01 出版日期:2008-03-26 发布日期:2008-03-26

Effect of TiO2/Ag+ Nanoparticles on isothermal Crystallization Behavior of Polypropylene

JIANG Dong-sheng，WANG Yong-Zhong，LU Kang-Li，YANG Jin-tao，ZHONG Ming-qiang   

  1. College of Chemical Engineering and Materials, Zhejiang University of Technology,Hangzhou 310014, China
  • Received:2007-10-28 Revised:1900-01-01 Online:2008-03-26 Published:2008-03-26
  • Contact: ZHONG Ming-qiang

摘要： 熔融挤出制备载银纳米二氧化钛(TiO2/Ag+)/聚丙烯(PP)复合材料，采用差示扫描量热仪研究纳米(TiO2/Ag+)对PP结晶性能的影响。结果表明:少量纳米TiO2/Ag对PP有成核促进作用，提高了结晶速率，使结晶度增大;当纳米TiO2/Ag十质量份数超过1%时，PP结晶陛减弱，甚至起一定的抑制作用;纳米TiO2/Ag+能提高PP结晶温度，而对PP熔融温度影响不大。

关键词: Nanocomposites of PP and TiO2/Ag+ were prepared by means of melt blending. the effect of TiO2/Ag+ nanoparticles on the crystallization of PP was studied using DSC. The crystallization rates and degree of crystallinity of PP were increased by addition of less than 1 wt% of TiO2/Ag+ nanoparticles.When the content of the latter exceeded 1 wt%, the degree of crystallinity of PP was decreased.The presence of TiO2/Ag+ nanoparticles increased the crystallization temperature, however, had no effect on the melting point.

Abstract: 载银纳米二氧化钛:聚丙烯;结晶性能

Key words: silver ion-carrying titanic oxide nanoparticle, polypropylene, crystallization behavior

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