Performance of Electrospinning EVOHSO3 Li/PEGDMA Diaphragm

GONG Gui-fen; XU A-wen; WANG Lei; DAI Shao-shi

doi:10.15938/j.jhust.2019.03.016

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Performance of Electrospinning EVOHSO3 Li/PEGDMA Diaphragm

更新时间：2026-08-31

- Performance of Electrospinning EVOHSO3 Li/PEGDMA Diaphragm
- Vol. 24, Issue 3, Pages: 100-105(2019)
- 作者机构：
  
  1. 哈尔滨理工大学材料科学与工程学院,哈尔滨,150080
  2. 哈尔滨工程大学船舶工程学院,黑龙江,哈尔滨,150001
- 作者简介：
- 基金信息：
- DOI：10.15938/j.jhust.2019.03.016
  CLC： TM215.1
- Published：2019
- 稿件说明：
移动端阅览
GONG Gui-fen, XU A-wen, WANG Lei, et al. Performance of Electrospinning EVOHSO3 Li/PEGDMA Diaphragm[J]. 2019, 24(3): 100-105.
DOI：

GONG Gui-fen, XU A-wen, WANG Lei, et al. Performance of Electrospinning EVOHSO3 Li/PEGDMA Diaphragm[J]. 2019, 24(3): 100-105. DOI： 10.15938/j.jhust.2019.03.016.

摘要

用聚乙二醇二甲基丙烯酸酯（PEGDMA）改性聚乙烯-乙烯醇磺酸锂（EVOH-SO3Li），采用高压静电纺丝技术纺成相互交错结构的纤维隔膜。对制备的隔膜分别进行化学结构、微观形貌、吸液率和孔隙率、胀缩率、机械性能和热性能（TG和DSC）的测试和分析。结果表明：EVOH-SO3Li/PEGDMA复合隔膜材料的纤维丝光滑、粗细均匀、无珠体结构；与EVOH-SO3Li隔膜材料相比，在EVOH-SO3Li/PEGDMA质量比为100/40时复合隔膜的综合性能最佳，孔隙率和吸液率分别为60%和258%，复合隔膜材料的胀缩率和拉伸强度都有所提高，分别为1.42和5.2MPa；加入PEGDMA改性后的隔膜的热分解性能基本不变，起始热分解温度为270℃。

Abstract

Interchangeable structure of the fibrous separator wasformed by lithium ethylenevinyl alcohol copolymer sulfate (EVOH-SO3Li) modifiedpolyethylene glycol dimethacrylate (PEGDMA) using highvoltage electrostaticspinning technology. The mechanical properties

microstructure

absorbency andporosity

shrinkage rate

mechanical properties and thermal properties (TG andDSC) were tested and analyzed. The results showed that the fiber ofEVOH-SO3Li/PEGDMA separator composite was smooth with uniform thickness and nonbead structure. Compared with the EVOH-SO3Li separator

the separator compositewith the EVOH-SO3Li / PEGDMA mass ratio of 100/40 has the best overallperformance with the porosity and liquid absorption of 60% and 258%respectively. The shrinkage and tensile strength of the separatorcomposite has increased—1.42 and 5.2MPa respectively. The thermaldecomposition performance of the modified PEGDMA separator was almostunchanged

and the initial thermal decomposition temperature was 270℃.

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