ELECTROSPUN CHITOSAN/POLY(VINYL ALCOHOL) BLEND ULTRAFINE FIBERS AND THEIR ULTRAVIOLET PHOTOCROSSLINKING

ZHEN Hongpeng; NIE Jun; SUN Junfeng; GUO Shuang; YANG Dongzhi

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ELECTROSPUN CHITOSAN/POLY(VINYL ALCOHOL) BLEND ULTRAFINE FIBERS AND THEIR ULTRAVIOLET PHOTOCROSSLINKING

Research Article | 更新时间：2021-03-19

- ELECTROSPUN CHITOSAN/POLY(VINYL ALCOHOL) BLEND ULTRAFINE FIBERS AND THEIR ULTRAVIOLET PHOTOCROSSLINKING
- Acta Polymerica Sinica Issue 3, Pages: 230-234(2007)
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- Published：10 March 2007，
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ZHEN Hongpeng, NIE Jun, SUN Junfeng, GUO Shuang, YANG Dongzhi. ELECTROSPUN CHITOSAN/POLY(VINYL ALCOHOL) BLEND ULTRAFINE FIBERS AND THEIR ULTRAVIOLET PHOTOCROSSLINKING. [J]. Acta Polymerica Sinica (3):230-234(2007)
DOI：

ZHEN Hongpeng, NIE Jun, SUN Junfeng, GUO Shuang, YANG Dongzhi. ELECTROSPUN CHITOSAN/POLY(VINYL ALCOHOL) BLEND ULTRAFINE FIBERS AND THEIR ULTRAVIOLET PHOTOCROSSLINKING. [J]. Acta Polymerica Sinica (3):230-234(2007) DOI：

摘要

用静电纺丝法制备壳聚糖/聚乙烯醇的共混超细纤维

采用扫描电镜考察了纺丝液浓度、共混物配比、喷丝口内径对纤维形貌的影响.此外

为减少壳聚糖/聚乙烯醇纤维膜的溶胀变形

在上述体系中加入可光交联的单体二缩三乙二醇双甲基丙烯酸酯（TEGDMA）、引发剂2-羟基-2-甲基-1苯基丙酮（1173）

对电纺纤维进行紫外光交联.结果表明

当壳聚糖与聚乙烯醇质量比为8:2的共混体系中加入占混合溶液质量分数4%的TEGDMA、0.12%的1173作为交联剂时

所得的无纺布纤维直径比较均一

平均约为200 nm

经光交联处理后其耐水性能得到提高.

Abstract

Ultrafine fibers of chitosan/poly(vinyl alcohol) (CS/PVA) were prepared by electrostatic spinning.The effects of solution concentration

mass ratio of CS/PVA and internal diameter of syringe needle on the morphology of ultrafine fibers were investigated by scanning electron microscope (SEM).Furthermore

photocurable monomer triethylene glycol dimethylacrylate (TEGDMA)and photoinitiator 2-hydroxy-2-methyl-1-phenylpropan-1-one were introduced into the CS/PVA blend solution to increase the water-resistance of the fibers

which is a common shortcoming of water soluble polymer fiber.The SEM results showed that

after UV radiation

the water-resistance of fibers was obviously improved by intrafiber-photocrosslinking when the CS/PVA weight ratios is 8∶2 and the concentration of TEGDMA and photoinitiator are 4 wt% and 0.12 wt%

respectively.The average diameter of fibers obtained by this method is around 200 nm.

关键词

电纺丝壳聚糖聚乙烯醇超细纤维紫外光交联

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