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材料工程  2016, Vol. 44 Issue (3): 92-96    DOI: 10.11868/j.issn.1001-4381.2016.03.015
  测试与表征 本期目录 | 过刊浏览 | 高级检索 |
r-PTFE对PBT非等温结晶动力学的影响
林婷惠1, 曹长林1, 陈庆华1,2, 钱庆荣1,2, 黄宝铨1,2, 夏新曙1, 林新土1, 肖荔人1
1. 福建师范大学, 福州 350007;
2. 福建省污染控制与资源循环利用重点实验室, 福州 350007
Effect of Recycled PTFE on Non-isothermal Crystallization Kinetics of PBT
LIN Ting-hui1, CAO Chang-lin1, CHEN Qing-hua1,2, QIAN Qing-rong1,2, HUANG Bao-quan1,2, XIA Xin-shu1, LIN Xin-tu1, XIAO Li-ren1
1. Fujian Normal University, Fuzhou 350007, China;
2. Fujian Key Laboratory of Pollution Control and Resource Reuse, Fuzhou 350007, China
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摘要 以回收聚四氟乙烯(r-PTFE)为成核剂,对聚对苯二甲酸丁二醇酯(BPT)进行成核结晶改性,采用差示扫描量热仪(DSC)研究了PBT/r-PTFE复合材料的非等温结晶行为,考察了不同降温速率对PBT/r-PTFE共混物结晶行为的影响,并对其DSC扫描数据采用Jeziorny法和Liu-Mo法进行处理,采用Kissiinger法计算体系结晶活化能。结果表明:r-PTFE对PBT具有异相成核作用,可明显提高PBT的结晶度及其结晶速率,且加入r-PTFE并不会改变PBT的成核和增长方式。由Kissinger法计算得出的结晶活化能结果表明,加入r-PTFE树脂能够明显降低PBT的结晶活化能,进一步验证r-PTFE对PBT具有成核促进作用。
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林婷惠
曹长林
陈庆华
钱庆荣
黄宝铨
夏新曙
林新土
肖荔人
关键词 聚对苯二甲酸丁二醇酯回收聚四氟乙烯非等温结晶动力学活化能    
Abstract:The recycled polytetrafluoroethylene(r-TPFE) was used as nucleating agent to modify Poly(butylene terephthalate) (PBT), and the non-isothermal crystallization behavior of Poly(ethylene terephthalate) and PBT/r-PTFE composite at different cooling rates was investigated by differential scanning calorimetry (DSC), respectively. The Jeziorny and Liu-Mo methods were used to analyze the non-isothermal crystallization process of pure PBT and its composite, and the activation energies of the PBT and PBT/r-PTFE composite were calculated by Kissiinger method. The results show that r-PTFE can act as efficient nucleating agent for the crystallization of PBT and obviously increase the crystallinity and crystallization rate of PBT. Compared with the Jeziorny method, the Liu-Mo method appropriately describes the non-isothermal crystallization of PBT and PBT/r-PTFE composite. Further analysis of results shows that the incorporation of r-PTFE does not obviously change the nucleation mechanism and crystal growth of PBT, but decreases the crystallization activation energy of PBT, which facilitates the crystallization of PBT.
Key wordspoly(butylene terephthalate)    recycled polytetrafluoroethylene    non-isothermal crystallization kinetics    activation energy
收稿日期: 2014-07-10      出版日期: 2016-03-22
中图分类号:  TQ323  
通讯作者: 肖荔人(1966-),女,教授级高工,研究方向为高分子材料加工改性,联系地址:福建省福州市仓山区福建师范大学材料科学与工程学院(350007),E-mail:xlr1966@126.com     E-mail: xlr1966@126.com
引用本文:   
林婷惠, 曹长林, 陈庆华, 钱庆荣, 黄宝铨, 夏新曙, 林新土, 肖荔人. r-PTFE对PBT非等温结晶动力学的影响[J]. 材料工程, 2016, 44(3): 92-96.
LIN Ting-hui, CAO Chang-lin, CHEN Qing-hua, QIAN Qing-rong, HUANG Bao-quan, XIA Xin-shu, LIN Xin-tu, XIAO Li-ren. Effect of Recycled PTFE on Non-isothermal Crystallization Kinetics of PBT. Journal of Materials Engineering, 2016, 44(3): 92-96.
链接本文:  
http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2016.03.015      或      http://jme.biam.ac.cn/CN/Y2016/V44/I3/92
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