Performance of Electrospinning EVOHSO3 Li/PEGDMA Diaphragm
Interchangeable structure of the fibrous separator was formed by lithium ethylenevinyl alcohol copolymer sulfate (EVOH-SO3Li) modified polyethylene glycol dimethacrylate (PEGDMA) using highvoltage electrostatic spinning technology. The mechanical properties, microstructure, absorbency and porosity,...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Harbin University of Science and Technology Publications
2019-06-01
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| Series: | Journal of Harbin University of Science and Technology |
| Subjects: | |
| Online Access: | https://hlgxb.hrbust.edu.cn/#/digest?ArticleID=1689 |
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| Summary: | Interchangeable structure of the fibrous separator was formed by lithium ethylenevinyl alcohol copolymer sulfate (EVOH-SO3Li) modified polyethylene glycol dimethacrylate (PEGDMA) using highvoltage electrostatic spinning technology. The mechanical properties, microstructure, absorbency and porosity, shrinkage rate, mechanical properties and thermal properties (TG and DSC) were tested and analyzed. The results showed that the fiber of EVOH-SO3Li/PEGDMA separator composite was smooth with uniform thickness and non bead structure. Compared with the EVOH-SO3Li separator, the separator composite with the EVOH-SO3Li / PEGDMA mass ratio of 100/40 has the best overall performance with the porosity and liquid absorption of 60% and 258% respectively. The shrinkage and tensile strength of the separator composite has increased—1.42 and 5.2MPa respectively. The thermal decomposition performance of the modified PEGDMA separator was almost unchanged, and the initial thermal decomposition temperature was 270℃. |
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| ISSN: | 1007-2683 |