[1]马文中,王诗婷,曹 峥,等.相转化结合溶胶凝胶法制备PVDF/SiO2杂化微孔膜[J].常州大学学报(自然科学版),2021,33(05):25-34.[doi:10.3969/j.issn.2095-0411.2021.05.004]
　MA Wenzhong,WANG Shiting,CAO Zheng,et al.Preparation of PVDFSiO2 Hybrid Microporous Membrane by Phase Inversion Combined with Sol-Gel Method[J].Journal of Changzhou University(Natural Science Edition),2021,33(05):25-34.[doi:10.3969/j.issn.2095-0411.2021.05.004]
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相转化结合溶胶凝胶法制备PVDF/SiO2杂化微孔膜()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
第33卷
期数:
2021年05期
页码:
25-34
栏目:
材料科学与工程
出版日期:
2021-09-28

文章信息/Info

Title:
Preparation of PVDFSiO2 Hybrid Microporous Membrane by Phase Inversion Combined with Sol-Gel Method
文章编号:
2095-0411(2021)05-0025-10
作者:
马文中1;  王诗婷1;  曹 峥1;  杨海存1;  刘春林1;  龚方红2
(1. 江苏省环境友好高分子材料重点实验室(常州大学), 江苏 常州 213164; 2. 常州大学 材料科学与工程学院, 江苏 常州 213164)
Author(s):
MA Wenzhong1;  WANG Shiting1;  CAO Zheng1;  YANG Haicun1;  LIU Chunlin1;  GONG Fanghong2
(1. Jiangsu Key Laboratory of Environmentally Friendly Polymer Materials, Changzhou University, Changzhou 213164, China; 2. School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China)
关键词:
PVDF/SiO2;  杂化微孔膜;  溶胶凝胶法;  蜂窝状微孔结构
Keywords:
PVDF/SiO2;  hybrid microporous film;  sol-gel method;  honeycomb micropore structure
分类号:
TQ 325.4
DOI:
10.3969/j.issn.2095-0411.2021.05.004
文献标志码:
A
摘要:
采用溶胶凝胶结合相转化法制备PVDF/SiO2杂化微孔膜, 通过TEOS溶胶凝胶原位生成SiO2实现其纳米分散, 同时与直接添加纳米SiO2方式进行对比。在铸膜液体系热力学相图绘制基础上, 选取最佳热力学制膜条件, 结合膜结构和形貌分析、热分析和拉伸性能分析。结果表明, TEOS的成核作用更好, 其凝胶过程会促进微孔的形成, 得到双连续的蜂窝状微孔结构。当PVDF质量分数为15%,TEOS质量分数为1.0%时能得到最优的复合膜, 其耐热性及力学性能得到提高, 拉伸强度可达到12.3 MPa, 断裂伸长率为245%。
Abstract:
The PVDF/SiO2 hybrid microporous membrane was prepared by sol-gel combined phase inversion method. The in-situ generation of TEOS sol-gel generated SiO2 to achieve its nano-dispersion, and at the same time, it was compared with the direct addition of nano-SiO2. Based on the drawing of the thermodynamic phase diagram of the film casting liquid system, the best thermodynamic film forming conditions are selected, combined with the analysis of film structure and morphology, thermal analysis and tensile performance analysis. The results show that TEOS has better nucleation, and its gelation process will promote the formation of micropores, resulting in a bi-continuous honeycomb micropore structure. When the content of PVDF is 15% weight score and the amount of TEOS added is 1.0% weight score, the optimal composite film can be obtained, its heat resistance and mechanical properties are improved, the tensile strength can reach 12.3 MPa, and the elongation at break is 245%.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2021-03-26。基金项目:江苏省高等学校自然科学研究资助项目(18KJA430005)。作者简介:马文中(1982—), 男, 江苏武进人, 博士, 副教授。E-mail: wenzhong-ma@cczu.edu.cn
更新日期/Last Update: 1900-01-01