中国塑料 ›› 2018, Vol. 32 ›› Issue (09): 113-117.DOI: 10.19491/j.issn.1001-9278.2018.09.019

• 助剂 • 上一篇    下一篇

尿素/甲酰胺复配增塑聚乙烯醇薄膜的制备及性能研究

田华峰1,王格涵2,姚媛媛3,刘茜1,李岩4,姜亚楠3,项爱民1   

  1. 1. 北京工商大学
    2. 首都师范大学附属中学
    3. 北京工商大学,材料与机械工程学院
    4. 中国建筑科学研究院有限公司
  • 收稿日期:2018-04-10 修回日期:2018-04-16 出版日期:2018-09-26 发布日期:2018-10-25

Preparation and Properties of Poly (vinyl alcohol) Films with Urea/ Formamide Complex Plasticizers

  • Received:2018-04-10 Revised:2018-04-16 Online:2018-09-26 Published:2018-10-25

摘要: 以尿素/甲酰胺为复配增塑剂,采用熔融共混法制备聚乙烯醇(PVA)薄膜。通过傅里叶变换红外光谱、扫描电子显微镜、差示扫描量热仪以及力学测试对PVA薄膜的结构与性能进行表征。结果表明,尿素/甲酰胺复配增塑剂通过破坏PVA分子内与分子间的氢键而影响了PVA分子链的有序结构,在改善PVA加工性能的同时降低了PVA的结晶度,并有效提高了薄膜的韧性。

Abstract: A series of poly(vinyl alcohol) (PVA) films with urea/formamide complex plasticizers were prepared by a melt processing method, and their structure and properties were characterized by Fourier-transform infrared spectroscopy, scanning electron microscopy, differential scanning calorimetry and mechanical measurement. The results indicated that the urea/formamide complex plasticizer affected the ordered structure of PVA molecular chains by destroying their inter/intra hydrogen bonds, thus improving the melt processing performance of PVA and decreasing its crystallinity degree.Furthermore, the toughness of the films was enhanced effectively.