Page 153 - 《精细化工》2023年第8期
P. 153
第 40 卷第 8 期 精 细 化 工 Vol.40, No.8
20 23 年 8 月 FINE CHEMICALS Aug. 2023
功能材料
蛭石/聚对苯二甲酸-己二酸丁二醇酯
复合薄膜的制备与性能
*
尚晓煜，薛 禹，李坤天，谭妍妍，谭 芳，张道海
（贵州民族大学 化学工程学院，贵州 贵阳 550025）
摘要：以蛭石（VMT）为填料、聚对苯二甲酸-己二酸丁二醇酯（PBAT）为基体，采用熔融-吹塑法制备了 VMT/PBAT
复合薄膜，通过向其中添加相容剂聚苯乙烯马来酸酐共聚物（SMA）制备了 VMT/PBAT/SMA 复合薄膜。对纯
PBAT 薄膜、VMT/PBAT 和 VMT/PBAT/SMA 复合薄膜的热性能、流变性能、水蒸气阻隔性能、断面微观结构
和力学性能进行了测试。结果表明，与纯 PBAT 薄膜相比，VMT/PBAT 和 VMT/PBAT/SMA 复合薄膜的热稳定
性降低，相比 VMT/PBAT 复合薄膜，SMA 的添加增强了 VMT/PBAT/SMA 复合薄膜的热稳定性。相同 VMT 含
量的 VMT/PBAT/SMA 复合薄膜比 VMT/PBAT 复合薄膜的结晶度低。相比纯 PBAT 薄膜，VMT/PBAT 和
VMT/PBAT/SMA 复合薄膜的拉伸强度和断裂伸长率降低，而 VMT/PBAT/SMA 复合薄膜的拉伸强度和断裂伸长
率整体比 VMT/PBAT 复合薄膜有所提高。VMT/PBAT 和 VMT/PBAT/SMA 复合薄膜水蒸汽透过量都小于 800
2
g/(m ·24 h)。VMT/PBAT 和 VMT/PBAT/SMA 复合薄膜水蒸气阻隔性能符合 GB/T 35795—2017《全生物降解农用
地面覆盖薄膜》的要求。
关键词：蛭石；聚对苯二甲酸-己二酸丁二醇酯；熔融-吹塑法；聚苯乙烯马来酸酐共聚物；热性能；水蒸气阻隔
性能；力学性能；功能材料
中图分类号：TQ337+.1 文献标识码：A 文章编号：1003-5214 (2023) 08-1767-09
Preparation and properties of vermiculite/poly(butylene
adipate-co-terephthalate) composite films
*
SHANG Xiaoyu, XUE Yu, LI Kuntian, TAN Yanyan, TAN Fang, ZHANG Daohai
（School of Chemical Engineering, Guizhou Minzu University, Guiyang 550025, Guizhou, China）
Abstract: Using vermiculite (VMT) as filler and polyterephthalate-butanediol ester (PBAT) as matrix,
VMT/PBAT composite films were prepared by melt blow molding method. By adding polystyrene maleic
anhydride copolymer (SMA) as compatibilizer, VMT/PBAT/SMA composite films were prepared. The
thermal properties, rheological properties, water vapor barrier properties, micro-structure and mechanical
properties of pure PBAT films, VMT/PBAT and VMT/PBAT/SMA composite films were tested. The results
show that compared with pure PBAT films, the thermal stability of VMT/PBAT and VMT/PBAT/SMA
composite films is decreased, and the addition of SMA enhances the thermal stability of VMT/PBAT/SMA
composite films compared with VMT/PBAT composite films. The crystallinity of VMT/PBAT/SMA
composite films with the same VMT content is lower than that of VMT/PBAT composite films. Compared
with pure PBAT films, the tensile strength and elongation at break of VMT/PBAT and VMT/PBAT/SMA
composite films are lower, while the tensile strength and elongation at break of VMT/PBAT/SMA
composite films are higher than that of VMT/PBAT composite films. The water vapor permeability of
收稿日期：2022-09-14; 定用日期：2023-02-22; DOI: 10.13550/j.jxhg.20220851
基金项目：国家自然科学基金项目（52163001）；贵州省省级科技计划项目〔黔科合平台人才-CXTD[2021]005、黔科合平台人才-GCC
[2022]010-1、黔科合基础[2020]1Y211、黔科合成果（2019）4022 号〕；贵阳市专家工作站（ZJGZZ2021-07）；贵阳市白云区科技计划
项目（白科合同[2020]28 号）；贵州民族大学科研平台资助项目（GZMUGCZX[2021]01）
作者简介：尚晓煜（1997—），男，硕士生，E-mail：2661233596@qq.com。联系人：张道海（1981—），男，研究员，E-mail：
zhangdaohai6235@163.com。
