影像科学与光化学 ›› 1990, Vol. 8 ›› Issue (1): 14-21.DOI: 10.7517/j.issn.1674-0475.1990.01.14

• 研究论文 • 上一篇    下一篇

双功能受阻胺光稳定剂GW-540与紫外线吸收剂并用效应的研究

潘江庆, 张伟, 崔松   

  1. 中国科学院化学研究所 北京 100080
  • 收稿日期:1988-06-18 修回日期:1988-11-17 出版日期:1990-02-20 发布日期:1990-02-20
  • 通讯作者: 潘江庆
  • 基金资助:
    国家自然科学基金

STUDY ON THE EFFECT OF COMBINATION OF BISFUN- CTIONAL HINDERED AMINE LIGHT STABILIZER (GW-540) AND UV-ABSORBERS

Pan Jiang-qing, Zhang Wei, Cui Song   

  1. Institute of Chemistry, Academia Sinica, Beijing 100080, P. R. China
  • Received:1988-06-18 Revised:1988-11-17 Online:1990-02-20 Published:1990-02-20

摘要: 本文用IR、UV、SEM等方法,研究了双功能基受阻胺光稳定剂——三(1,2,2,6,6-五甲基-4-哌啶基)亚磷酸酯(GW-540),与紫外线吸收剂UV-531、UV-327并用时对聚丙烯的防光作用,结果表明:GW-540-UV-531并用体系有良好的防光作用,呈强的协同效应;GW-540-UV-327并用体系呈弱的对抗作用。结果还表明:GW-540对531和327的光分解均有保护作用.电镜研究表明,加入GW-540后,使UV-327在聚丙烯中分散更不均匀,从而影响其效率的发挥。文中提出了两个体系的协同和对抗作用机理。

关键词: 受阻胺光稳定剂, 聚丙烯, 助剂的协同作用, 哌啶稳定剂, 紫外吸收剂

Abstract: The photoprotecting action of combination of GW-540 (tri-1,2,2,6,6-penta-methyl-4-piperidinyl phosphite) and two UV absorbers (UV-531,UV-327) for polypropylene was studied by IR.,UV-spectrum,SEM.The results showed that the combination of GW-540 and UV-531 possess a good photoprotecting effectiveness,appears strong synergism,and the combination of GW-540 and UV-327 appears a weak antagonism.The results of UV-spectrum showed that GW-540 can protect both UV-531 and UV-327 against photolysis.The results of SEM showed that the more non-uniform dispersion of UV-327 in polypropylene matrix had been formed when GW-540 was added in.The mechanisms of synergism (GW-540——UV-531) and antagonism (GW-540——UV327) were proposed.

Key words: hindered amine light stabilizer, polypropylene, synergism of additives, piperidine stabilizer, UV-absorbers