高等学校化学学报

高等学校化学学报 ›› 1997, Vol. 18 ›› Issue (3): 472.

• 论文 • 上一篇    下一篇

聚对苯二甲酸乙二酯/聚苯磷酸二苯砜酯体系的性能研究

王玉忠1, 郑长义1, 吴大诚2   

  1. 1. 四川大学化学系, 成都, 610064;
    2. 成都科技大学轻纺学院
  • 收稿日期:1995-03-05 出版日期:1997-03-24 发布日期:1997-03-24
  • 通讯作者: 王玉忠, 男, 35岁, 博士, 教授.
  • 作者简介:王玉忠, 男, 35岁, 博士, 教授.
  • 基金资助:

    国家自然科学基金

Properties of Polyethylene Terephthalate/Polysulfonyldiphenylene Phenylphosphanate Flame-Retardant Systems

WANG Yu-Zhong1, ZHENG Chang-Yi1, WU Da-Cheng2   

  1. 1. Department of.Chemistry, Sichuan University, Chengdu, 610064;
    2. Textile Cbllege, Chengdu University of Science and Technology, Chengdu, 610065
  • Received:1995-03-05 Online:1997-03-24 Published:1997-03-24

PDF (PC)

被引次数

8

摘要： 混合热计算和FTIR分析表明,聚对苯二甲酸乙二酯(PET)与聚苯膦酸二苯砜酯(PSPPP)具有一定的相容性.不同PSPPP含量的PET均具有较高的热稳定性,PET/PSPPP体系的阻燃性随阻燃剂PSPPP含量的增加而提高,PSPPP重量百分含量为5％(下同)的阻燃PET体系的LOI值可达到30.1.由不同分子量的PSPPP构成的各种配比的PET体系,其表现粘度随切变速率的增大而降低,PSPPP的分子量较低的阻燃体系比分子量较高的体系具有更低的粘度,其差值随温度的升高而增大.

关键词: 聚对苯二甲酸乙二酯, 聚苯膦酸二苯砜酯, 相容性, 流变性, 阻燃性

Abstract: The molecular-chain-level interactions between polyethylene terephathalate(PET)and polysulfonyldiphenylene phenylphosphanate (PSPPP) have been investigated by FTlR.The existence of the interactl0ns shows the miscibility of PETand PSPPP.PET/PSPPPflame-retardant systems have a very high thermal stabillty, and do not decompose at the processlng temperature of PET.The limlting oxygen index (LOI) values of the systems increase with the content of PSPPP, and are almost not affected by the molecular weights of PSPPPand the blending methods.At the processing temperatures of PET, PSPPPwith lower molecular weights, say Mn＜4000, will cause the degradation of PET, which can be to a certain extent inhibited by adding a stabilizer to the systems.As the results of those, the apparent viscosities of PET/PSPPPsystems with lower molecular weights of PSPPPare higher than those with higher molecular weights of PSPPP.The addition of the stabilizer can decrease their viscosity differences.The apparent viscosities of varlous PET/PSPPPsyStems decrease with the increase of shear rate and the content of PSPPP, and do with the rise of temperature.

Key words: PET, Poly(sulfonyldiphenylene phenylphosphanate), Miscibility, Rheological Property, Flame retardancy

TrendMD: