PROPERTIES OF ULTRAFINE FIBROUS POLY(VINYL ALCOHOL) MEMBRANES BY ELECTROSPINNING

ZHANG Chunxue; YUAN Xiaoyan; WU Lili; SHENG Jing

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PROPERTIES OF ULTRAFINE FIBROUS POLY(VINYL ALCOHOL) MEMBRANES BY ELECTROSPINNING

Research Article | 更新时间：2021-03-19

- PROPERTIES OF ULTRAFINE FIBROUS POLY(VINYL ALCOHOL) MEMBRANES BY ELECTROSPINNING
- Acta Polymerica Sinica Issue 2, Pages: 294-297(2006)
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- Published：20 April 2006，
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ZHANG Chunxue, YUAN Xiaoyan, WU Lili, SHENG Jing. PROPERTIES OF ULTRAFINE FIBROUS POLY(VINYL ALCOHOL) MEMBRANES BY ELECTROSPINNING. [J]. Acta Polymerica Sinica (2):294-297(2006)
DOI：

ZHANG Chunxue, YUAN Xiaoyan, WU Lili, SHENG Jing. PROPERTIES OF ULTRAFINE FIBROUS POLY(VINYL ALCOHOL) MEMBRANES BY ELECTROSPINNING. [J]. Acta Polymerica Sinica (2):294-297(2006) DOI：

摘要

由电纺制备聚乙烯醇(PVA)超细纤维膜

以扫描电镜观察纤维的微观形貌

用X射线衍射研究超细纤维膜的结晶行为

并测定了PVA超细纤维膜的力学性能和吸水性.结果表明

PVA超细纤维的平均直径为(184±26)nm

超细纤维中PVA的结晶度和晶体有序程度较浇铸膜低.超细纤维膜的拉伸强度、模量和断裂伸长率均较浇铸膜差

吸水率在300%以上

高于浇铸膜.

Abstract

Ultrafine fibrous membranes of pely(vlnyl alcohol)(PVA)were prepared by electrospinning from aqueous solutions of fully hydrolyzed PVA．The morphology of the electrospun PVA fibere was observed under a scanning electron microscope．The crystallization behavior was investigated by X—ray diffraction(XRD)．Mechanical properties and water up—take of the fibrous PVA membrane were also evaluated．Results suggested that the average diameter of ultrafine PVA fibers was(184±26)nm．XRD analysis exhibited poor development of crystallinity in electrospun fibrous PVA membranes．The tensile strength．tensile modulus and elongation at broak of the fibrous PVA membrane wero(5．10±0．77)MPa

(236±27)MPa and(8．28±2．38)％ respectively

indicating weak mechanical properties compared with the casting PVA film．Water up—take of fibrous PVA membranes was more than 300％

hisher than that of the casting PVA film．Crosslinking of the fibrous PVA membrane did not show significant influence on its water up-take．

关键词

聚乙烯醇电纺超细纤维膜性能

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