尿素/甲酰胺复配增塑聚乙烯醇薄膜的制备及性能研究  

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

作　　者：田华峰[1] 王格涵 姚媛媛 刘茜[1] 李岩 姜亚楠 项爱民[1] TIAN Huafeng;WANG Gehan;YAO Yuanyuan;LIU Qian;LI YAN;JIANG Yanan;XIANG Aimin(School of Material and Mechanical Engineering,Beijing Technology and Business University,Beijing 100048,China;Capital Normal Univprsity High School,Beijing 100048,China;;China Academy of Building Research,Beijing 100013,China)

机构地区：[1]北京工商大学材料与机械工程学院,北京100048 [2]首都师范大学附属中学,北京100048 [3]中国建筑科学研究院有限公司,北京100013

出　　处：《中国塑料》2018年第9期113-117,共5页China Plastics

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。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.

关 键 词：聚乙烯醇 尿素 甲酰胺 增塑 

分 类 号：TQ321[化学工程—合成树脂塑料工业]