高等学校化学学报

高等学校化学学报 ›› 2011, Vol. 32 ›› Issue (5): 1225.

• 研究论文 • 上一篇    

尼龙1010的拉伸结晶行为及Brill转变

王继库1,赵国升1,周云春2   

  1. 1. 吉林师范大学化学学院, 四平 136000;
    2. 中国科学院长春应用化学研究所, 高分子物理与化学国家重点实验室, 长春 130022
  • 收稿日期:2010-05-24 修回日期:2010-12-12 出版日期:2011-05-10 发布日期:2011-04-11
  • 通讯作者: 王继库 E-mail:jikuwang@sina.com
  • 基金资助:

    国家自然科学基金(批准号: 60978059)资助.

Drawing-induced Crystallization Behavior and Brill Transition of Nylon 1010

WANG Ji-Ku1*, ZHAO Guo-Sheng1, ZHOU Yun-Chun2   

  1. 1. College of Chemistry, Jilin Normal University, Siping 136000, China;
    2. State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
  • Received:2010-05-24 Revised:2010-12-12 Online:2011-05-10 Published:2011-04-11
  • Contact: WANG Ji-Ku E-mail:jikuwang@sina.com
  • Supported by:

    国家自然科学基金(批准号: 60978059)资助.

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被引次数

11

摘要： 摘要 :本文通过示差扫描热分析，广角X射线衍射分析及二维广角X射线散射等手段研究和讨论了尼龙1010在不同的拉伸比率(λ)及拉伸温度（Td）下拉伸诱导的晶体转变及结晶取向行为。实验表明，在拉伸条件下，尼龙1010易于从α晶型向δˊ晶型转变，而拉伸比率的提高，有利于促进这种Brill转变。而在相同的拉伸比率下，随着拉伸温度的提高，发现了尼龙1010从δˊ晶型向α晶型的独特转变，而这种过程刚好与无拉伸状态下的尼龙1010晶型和温度的相互关系截然相反。二维广角X射线散射实验研究结果表明尼龙1010的晶体取向度主要和拉伸比有关，并且（002）的晶面间距随着拉伸比率的提高而增大，表明了长轴尺寸的增大对拉伸取向的依赖关系。

关键词: 关键词：尼龙1010, 拉伸诱导结晶, Brill转变, 晶体取向

Abstract: Abstract : The crystal transitions and crystal orientations of Nylon 1010 drawing-induced at different drawing temperatures (Td) and drawing ratios (λ) were carefully studied by Differential Scanning Calorimetry (DSC), Wide-Angle X-ray Diffraction (WAXD) and Two Dimensional (2D) Wide-Angle X-ray Scattering (WAXS) experiments. Results show that drawing is favorable to the transition of δˊform from αform of Nylon 1010 and so-called Brill transition became more obviously with drawing ratio increasing under the same temperature. New relationship of crystal form versus temperature was first discovered in which δˊform of Nylon 1010 could be gradually transformed into αform when drawn at higher drawing temperature. This is distict from the crystallization performance of Nylon 1010 under thermal effect without drawing. The measurements of orientation degrees, based on 2D WAXS experiments, showed that crystal orientations were solely decided by the drawing ratios. Furthermore, the d spacing of (002) reflections increased with the drawing ratios, which also showed the dependence of long axis increasment on the drawing orientation.

Key words: Nylon 1010, drawing-induced crystallization, Brill transition, crystal orientation

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