高等学校化学学报

高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (7): 1146.

• 研究简报 • 上一篇    

碳酸钙填充聚乙烯的光老化性能研究

沈经炜, 刘跃建   

  1. 四川联合大学塑料工程系, 成都, 610065
  • 收稿日期:1994-08-02 修回日期:1995-01-29 出版日期:1995-07-24 发布日期:1995-07-24
  • 通讯作者: 沈经炜,男,55岁,博士,教授.
  • 作者简介:沈经炜,男,55岁,博士,教授.

Studies on Photoaging Properties of Calcium Carbonate Filled Polyethylene

SHEN Jing-Wei, LIU Yue-Jian   

  1. Department of Plastics Engineering, Sichuan Union University, Chengdu, 610065
  • Received:1994-08-02 Revised:1995-01-29 Online:1995-07-24 Published:1995-07-24

PDF (PC)

被引次数

2

摘要： 近年来国内外对以CaCO3为主的无机刚性粒子增强、增韧聚烯烃的基础和应用研究取得重大进展,填充的主要目的已从降低成本转向提高材料性能,展现出钙塑材料新的更广阔的应用前景。本文用人工光老化方法和红外光谱分析手段,对涉及材料使用寿命的光老化性能进行了研究,以期为这类钙材料的进一步推广应用提供更全面的理论和实际依据。

关键词: 碳酸钙, 聚乙烯, 光老化, 羰基, 双键

Abstract: Photoaging properties of calcium carbonate (CaCO3) filled polyethylene(PE) were investigated by means of artificial photoaging test. Photoaging qualities were characterized by the change of carbonyl concentration and double bond optical density with luminous flux with the aid of FTIR. It is showed that the photoaging behavior of CaCO3filled plastics relates to metallic impurities in the filler, filler content, environment temperature etc.. Degradation with photoaging can be restrained by adding a little proper light stabilizer.

Key words: Calcium carbonate, Polyethylene, Photoaging, Carbonyl, Double bond

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