中国塑料 ›› 2013, Vol. 27 ›› Issue (08): 50-55.DOI: 10.19491/j.issn.1001-9278.2013.08.010

• 材料与性能 • 上一篇    下一篇

聚己内酯/甲基纳米SiO2原位复合材料的制备与性能研究

李丹,常海波,马聪鹤,游倩倩,张普玉*   

  1. 河南大学化学化工学院,精细化学与工程研究所,河南开封475004
  • 收稿日期:2013-03-25 修回日期:2013-06-20 出版日期:2013-08-26 发布日期:2020-11-16

Synthesis and properties of the polycaprolactone/methyl nano-SiO2 situ composites

LI Dan,CHANG Haibo,MA Conghe,YOU Qianqian,ZHANG Puyu*   

  1. Institute of Fine Chemistry Engineering, College of Chemistry and Chemical Engineering,Henan University, Kaifeng 75004,China
  • Received:2013-03-25 Revised:2013-06-20 Online:2013-08-26 Published:2020-11-16

摘要: 采用原位聚合的方法,以表面修饰的甲基纳米SiO2(DNS-3)为起始剂,制备了聚己内酯/DNS-3(PCL/ DNS-3)复合材料。热失重(TG)和傅里叶变换红外光谱(FT-IR)谱图分析结果表明,DNS-3与PCL基体之间具有较强的化学键合作用。在相同的反应条件下,复合材料的重均分子量(Mw)是随着DNS-3含量的增多而减少,DNS-3的添加提高了PCL的热稳定性和结晶速率,PCL/ DNS-3复合材料的结晶温度较纯PCL的有所提高。

关键词: 聚己内酯, 纳米二氧化硅, 复合材料, 结晶, 形貌

Abstract: With the surface repaired methyl nano-SiO2 (DNS-3) as initiator, polycaprolactone / DNS-3 (PCL/DNS-3) composite material were prepared by in situ polymerization. Thermogravimetry (TG) curves and Fourier transformed infrared spectrums (FT-IR) revealed that there had strong chemical bonds between PCL matrix and the DNS-3. In the same reaction conditions, with increasing DNS-3 content, the molecular weight (Mw) of nanocomposite material was reduced, but its thermal stability and crystallization rate were improved. The crystallization temperature of PCL/DNS-3 composite material was increased compared to pure PCL.

Key words: polycaprolactone, nano-silica;composite, crystallization;morphology

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