中国塑料 ›› 2014, Vol. 28 ›› Issue (11): 47-51 .DOI: 10.19491/j.issn.1001-9278.2014.11.009

• 材料与性能 • 上一篇    下一篇

PP/PP-g-AN/纳米TiO2的制备及抗老化性能研究

王雅珍1,马迪1,岳成娥1,孙兆洋1,陈国力2   

  1. 1. 齐齐哈尔大学材料学院2. 黑龙江省齐齐哈尔市齐齐哈尔大学
  • 收稿日期:2014-03-28 修回日期:2014-08-19 出版日期:2014-11-26 发布日期:2014-11-26

Preparation and Aging Resistance of PP/PP-g-AN/nano-TiO2

  • Received:2014-03-28 Revised:2014-08-19 Online:2014-11-26 Published:2014-11-26

摘要: 采用聚丙烯-丙烯腈接枝共聚物(PP-g-AN)、有机化纳米二氧化钛(TiO2)对聚丙烯(PP)进行抗老化改性,并通过加速老化测试仪、扫描电子显微镜、紫外-可见光谱仪等仪器测试表征了老化后共混物的变化情况,并测试了加速老化500、1000、1500、2000、2500h后纯PP和PP/PP-g-AN/纳米TiO2的力学性能。结果表明,PP/PP-g-AN/纳米TiO2经过加速老化后具有良好的抗老化性能,当PP/PP-g-AN/纳米TiO2含量为90/5/5时(简称G5T5),加速老化2500h后PP/PP-g-AN/纳米TiO2的拉伸强度达到最大值25.58MPa,冲击强度为62.73 KJ/m2;加入改性材料能够有效提高PP的抗老化性能,延长PP的使用时间。

关键词: 聚丙烯, 聚丙烯-丙烯腈接枝共聚物, 纳米二氧化钛, 抗老化性能, 力学性能

Abstract: PP-g-AN and TiO2 were introduced into polypropylene in order to improve its aging resistance.The aging of the system was monitored for 500, 1000, 1500, 2000 and 2500h. When the PP-g-AN/TiO2 content was 590/5/5, the tensile strength of modified polypropylene reached a maximum of 25.58MPa and an impact strength of 62.73 KJ/m2 after accelerated aging 2500h.

Key words: polypropylene, acrylonitrile-grafted-polyprepylene copolymer, nano-titanium dioxide, aging resistance, mechanical property