中国塑料 ›› 2025, Vol. 39 ›› Issue (4): 8-13.DOI: 10.19491/j.issn.1001-9278.2025.04.002

• 材料与性能 • 上一篇    下一篇

不同粒径尺寸MoS2对PA10T的非等温结晶行为影响

刘欣磊1(), 韦联川1, 张伟臻1, 李源1, 张琦1, 庄毅1,2, 张师军1,2()   

  1. 1.中石化(北京)化工研究院有限公司,北京 100013
    2.中国石油化工集团公司,北京 100728
  • 收稿日期:2024-08-25 出版日期:2025-04-26 发布日期:2025-04-23
  • 通讯作者: 张师军(1962-),男,教授级高级工程师,主要从事合成树脂及聚合物复合材料开发方面研究,zhangsj.bjhy@sinopec.com
    E-mail:liuxinl.bjhy@sinopec.com;zhangsj.bjhy@sinopec.com
  • 作者简介:刘欣磊(1999-),男,硕士研究生,现从事高温聚酰胺改性等方面研究,liuxinl.bjhy@sinopec.com

Effect of particle size of MoS2 on non⁃isothermal crystallization behavior of Polyamide 10T

LIU Xinlei1(), WEI Lianchuan1, ZHANG Weizhen1, LI Yuan1, ZHANG Qi1, ZHUANG Yi1,2, ZHANG Shijun1,2()   

  1. 1.SINOPEC (Beijing) Research Institute of Chemical Industry Co,Ltd,Beijing 100013,China
    2.SINOPEC Group,Beijing 100728,China
  • Received:2024-08-25 Online:2025-04-26 Published:2025-04-23
  • Contact: ZHANG Shijun E-mail:liuxinl.bjhy@sinopec.com;zhangsj.bjhy@sinopec.com

摘要:

将不同粒径尺寸的二硫化钼(MoS2)通过熔融共混法填充到半芳香族高温聚酰胺10T(PA10T)中,制备了PA10T/MoS2复合材料。采用差示扫描量热法(DSC)研究了PA10T及其复合材料在不同降温速率下的非等温结晶行为,对比了不同粒径尺寸MoS2对PA10T的结晶行为影响,采用Jeziorny法和Mo法分别研究PA10T及其复合材料的非等温结晶过程,采用Kissinger法计算PA10T及其复合材料的非等温结晶活化能。结果表明,PA10T本身结晶速率快、结晶时间短。MoS2填充PA10T后,结晶温度范围变大,半结晶时间延长,结晶速率减缓,且纳米级MoS2在PA10T结晶过程中克服的潜在势垒所需能量更低。采用Jeziorny法和Mo法研究结果都得到MoS2的粒径尺寸对PA10T非等温结晶速率影响不显著。在一定范围内的降温速率下,PA10T加工成型过程可以采用纳米级或微米级MoS2填充PA10T作为调控其结晶速率的有效手段。

关键词: 半芳香族聚酰胺, 聚对苯二甲酰癸二胺, 填料, 二硫化钼, 非等温结晶, 差示扫描量热法

Abstract:

Polyamide 10T (PA10T)/MoS2 composites were prepared by incorporating MoS2 into semi⁃aromatic polyamide PA10T through melt blending. Differential scanning calorimetry (DSC) was conducted to study the non⁃isothermal crystallization behavior of PA10T and its composites at different cooling rates. The effect of particle size of MoS2 on the crystallization behavior of PA10T was investigated. The non⁃isothermal crystallization kinetics of PA10T and its composites was studied by using the Jeziorny's and Mo's methods, and their non⁃isothermal crystallization activation energy was calculated by using Kissinger’s method. The results indicated that the crystallization rate of PA10T was fastened and its crystallization time was shortened. After being filled with MoS2, the PA10T composites demonstrated a larger crystallization temperature range, an extended half⁃crystallization time, a slowed crystallization rate, and a lower potential barrier required for nanoscale MoS2 to overcome in the crystallization process of PA10T. The analysis results obtained from the Jeziorny's and Mo's methods indicated that the MoS2 with different particle sizes had no significant effect on the non⁃isothermal crystallization rate of PA10T. In a certain range of cooling rates, incorporating nanometer or micron MoS2 into PA10T can be adopted as an effective means to control the crystallization rate of PA10T in its processing.

Key words: semi-aromatic polyamide, poly(decamethylene terephthalamide), filler, molybdenum disulfide, non-isothermal crystallization, differential scanning calorimetry

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