化学学报 ›› 1979, Vol. 37 ›› Issue (2): 101-110. 上一篇    下一篇

论文

用X射线法测定聚对次苯基硫醚的结晶度Ⅰ.

陈济舟1, 蒋世承2   

  1. 1. 天津化工研究院;
    2. 河北工学院
  • 收稿日期:1978-01-29 出版日期:1979-06-15 发布日期:2013-06-03

DETERMINATION OF CRYSTALLINITY IN POLY-P-PHENYLENE SULPHIDE BY X-RAY DIFFRACTION Ⅰ.

CHEN JI-ZHOU1, JIANG SHI-CHENG2   

  1. 1. Tianjian Institute of Chemical Engneering;
    2. Hebei College of Technology
  • Received:1978-01-29 Online:1979-06-15 Published:2013-06-03

本文报导用 X-衍射的分段连续累积计数以测定PPS结晶度的方法.按此法测出PPS原粉的结晶度约为75%.在空气中360℃恒温6小时后,PPS即氧化交联成无定形固体.由于热处理条件不同,PPS原粉中仍可能保持一定的结晶度,即有“夹生”现象.

Poly-P-phènylene sulphide (PPS) is a highly crystalline resin. The crystallinity directly affects its physical and mechanical properties and also its processing. However, in literatare, only a qualitative description or a semi-quantitative orystallinity index value had been found. The present paper reported the continuous and cumulative, counting method, first and successfully, to determine the orystallinity of PPS, by X-Ray diffraction. According to this method, virgin powder of PPS possesses a orystallinity noar 75%.After heating 6 hours in air, at 360℃, PPS is transformed in to an amorphous solid by oxidative and thermal orosslinldng. The intermediate orystallinity had been found between the two extremes,by different heating conditions.