中国塑料 ›› 2016, Vol. 30 ›› Issue (06): 28-33 .DOI: 10.19491/j.issn.1001-9278.2016.06.007

• 材料与性能 • 上一篇    下一篇

不同紫外光对无机纳米材料改性聚丙烯老化行为的影响

周念庭1,周豪2,卫茂平1,朱军2,买买提江.依米提3   

  1. 1. 新疆大学2. 中国石油独山子石化公司研究院3. 新疆大学化学化工学院
  • 收稿日期:2015-12-23 修回日期:2016-03-13 出版日期:2016-06-26 发布日期:2016-06-26

Effects of Different UV on Aging Behavior of PP Modified with Inorganic Nanomaterials

  • Received:2015-12-23 Revised:2016-03-13 Online:2016-06-26 Published:2016-06-26

摘要: 将无机纳米材料与聚丙烯(PP)熔融共混制备耐候性PP复合材料。采用透射电子显微镜、凝胶渗透色谱、红外光谱以及力学性能测试等手段研究了纳米二氧化钛(nano-TiO2)、纳米二氧化硅(nano-SiO2)、纳米氧化锌(nano-ZnO)等无机材料对PP抗紫外老化性的影响。结果表明,无机纳米材料的含量为0.3 %时,分散性最好,可促使PP力学性能提高;PP/nano-TiO2的抗紫外线老化性能最好,与纯PP相比,老化144 h后断裂伸长率保持率在波长为340 nm和313 nm紫外光源中分别提高了31.5 %和11.8 %。

关键词: 聚丙烯, 无机纳米材料, 紫外光老化, 断裂伸长率

Abstract: TEM, GPC, IR, and mechanical property tests were carried out to study the effect of inorganic nanomaterials such as TiO2, SiO2, ZnO on the UV aging resistance of PP. It was found that the best dispersion was achieved when the loading of inorganic particles was 0.3 wt%, at which the mechanical properties of PP was obviously enhanced and the anti-UV aging behavior of PP/nano-TiO2 was the best. Compared with neat PP, the elongation at break of the composite after 144 h of aging under 340 nm and 313 nm of UV light was increased by 31.5 % and 11.8 %, respectively

Key words: polypropylene, Inorganic nanomaterial, ultraviolet aging, elongation at break