中华医学超声杂志

应用化学 ›› 1994, Vol. 0 ›› Issue (4): 40-44.

• 研究论文 • 上一篇    下一篇

用WAXD和SAXS研究辐照聚酰胺1010结构

张利华, 于力, 张文德, 张宏放, 莫志深, 陈东霖   

  1. 中国科学院长春应用化学研究所 长春 130022
  • 收稿日期:1993-08-18 修回日期:1994-03-16 出版日期:1994-08-10 发布日期:1994-08-10

Stucture of Irradiated Polyamide 1010 by WAXD and SAXS

Zhang Lihua, Yu Li, Zhang Wende, Zhang Hongfang, Mo Zhishen, Chen Donglin   

  1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022
  • Received:1993-08-18 Revised:1994-03-16 Published:1994-08-10 Online:1994-08-10

PDF

431

被引次数

2

摘要： 用WAXD和SAXS方法研究了聚酰胺1010的聚集态结构和结晶结构的辐射损伤过程和机理。辐射交联与裂解主要在非晶区和结晶表面或中间相发生;辐射损伤并从这里开始,随辐射剂量增大,非晶化逐渐向晶区伸展,有氢键的(010)晶面损伤几率高于(100)晶面;辐射后效应导致新的交联与裂解生成,主要影响(010)晶面的形成与完善,使L100及Wc变小。

关键词: 聚酰胺1010, 辐射效应, 结晶损伤

Abstract: The radiation effects on the polyamide 1010 samples of various aggregation states and the crystal damage induced by irradiation have been investigated by WAXD and SAXS techniques, The results indicated that the cross-linking and scission of the irradiated polyamide 1010 samples occurred mainly in the amorphous region and interphase (or crystal surface) and the crystal damage induced by irradiation started from crystal surface,extending into the inner portion of the crystal with increasing radiation dose. The portion of irradiation damage for the(010)plane is greater than that for the(100)plane. The post-radiation effects induced by heat-treatment, a further crosslinking and scission affect the formation and perfection of the(010)plane and cause a decrease of crystallite size L100 and the crystsllinity of the samples.

Key words: polyamide 1010, radiation effect, crystal damage

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