中国塑料

中国塑料 ›› 2008, Vol. 22 ›› Issue (11): 78-81 .DOI: 10.19491/j.issn.1001-9278.2008.11.018

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PMMA接枝纳米ZnO复合粒子改性PVC塑料性能研究

唐二军   

  1. 河北科技大学化学与制药工程学院，河北 石家庄 050018
  • 收稿日期:2008-01-01 修回日期:1900-01-01 出版日期:2008-11-26 发布日期:2008-11-26

Properties of PVC Modified by PMMA Grafted ZnO Nano particles

TANG Er-jun   

  1. School of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
  • Received:2008-01-01 Revised:1900-01-01 Online:2008-11-26 Published:2008-11-26
  • Contact: TANG Er-jun

摘要： 通过原位聚合将甲基丙烯酸甲酯（MMA）接枝于纳米ZnO表面，制备了PMMA接枝纳米ZnO复合粒子，将其加入聚氯乙烯（PVC） 基体中进行改性。研究了纳米ZnO粒子在PVC基体中的分散性和PVC复合材料的力学性能，探讨了改性纳米ZnO粒子填充PVC材料的抗紫外线性能。结果表明，改性后的纳米ZnO粒子在PVC基体中分散均匀, 提高了纳米ZnO粒子与PVC基体之间的相容性，使改性PVC材料的拉伸强度达到78 MPa，比纯纳米ZnO粒子改性PVC提高了35 %；冲击强度提高了近1倍，达到13.6 kJ/m2；加入改性纳米ZnO粒子的PVC还具有明显的吸收紫外线功能。

关键词: 纳米氧化锌, 聚氯乙烯, 表面接枝改性, 抗紫外线性能, 力学性能

Abstract: ZnO nanoparticles were in-situ grafted with PMMA from the surface and used as a modifier for PVC. Such ZnO nanoparticles were homogeneously dispersed in the PVC matrix. Filled with PMMA grafted ZnO nanoparticles, PVC composites possessed a tensile strength of 78 MPa , which was 35% higher than that based on untreated ZnO; and an impact strength 13.6 kJ•m-2, twice as untreated case. In addition, PMMA grafted ZnO nanoparticles imparted PVC a perfect UV-shielding property.

Key words: nano-ZnO, poly(vinyl chloride), graft surface modification, UV-shielding properties, mechanical property

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