Preparation and Properties of Bamboo Fiber Hydrophilic Membrane

Hang-zhong LIU; Li-qing QIU; Huai-min GUAN

doi:10.14028/j.cnki.1003-3726.2020.05.005

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Preparation and Properties of Bamboo Fiber Hydrophilic Membrane

更新时间：2022-08-31

- Preparation and Properties of Bamboo Fiber Hydrophilic Membrane
- Polymer Bulletin Vol. 33, Issue 5, Pages: 39-47(2020)
- 作者机构：
  
  1.武夷学院生态与资源工程学院,福建省竹材工程技术研究中心,福建省生态产业绿色技术重点实验室,武夷山 354300
  2.福建师范大学化学与材料学院, 福建省高分子材料重点实验室,福州 350007
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2020.05.005
  CLC：
- Published：20 May 2020，
  
  Received：17 July 2019，
  
  Revised：29 November 2019，
扫描看全文
Hang-zhong LIU, Li-qing QIU, Huai-min GUAN. Preparation and Properties of Bamboo Fiber Hydrophilic Membrane. [J]. Polymer Bulletin 33(5):39-47(2020)
DOI：

Hang-zhong LIU, Li-qing QIU, Huai-min GUAN. Preparation and Properties of Bamboo Fiber Hydrophilic Membrane. [J]. Polymer Bulletin 33(5):39-47(2020) DOI： 10.14028/j.cnki.1003-3726.2020.05.005.

摘要

以碱处理的改性竹纤维(BF)、乳酸(LA)为反应原料

制备PLA-g-BF接枝物。PLA-g-BF接枝物分别与壳聚糖(CS)、聚乙烯醇(PVA)为原料的体系进行复合

制备竹纤维复合亲水膜

探究了CS(PVA)溶液质量浓度和PLA-g-BF/CS(PVA)溶液质量配比对所制备的竹纤维复合亲水膜的结构、拉伸强度、形貌、亲水性、附着力及降解性的影响。结果表明:CS溶液质量浓度为1/40(g/mL)

接枝物与CS溶液质量配比为2∶40时

膜的拉伸强度为4.93MPa

接触角为72.9°

硬度为2H

基本不降解;PVA溶液质量分数为7%

接枝物与PVA溶液质量配比为2∶40时

膜的拉伸强度为17.2MPa

接触角为53.2°

硬度为5H

6天内全部降解。

Abstract

PLA-g-BF grafting copolymer was prepared by alkali-treated modified bamboo fiber and lactic acid. PLA-g- BF grafts were compounded with chitosan(CS) and polyvinyl alcohol(PVA) as raw materials to prepare bamboo fiber composite hydrophilic membranes. The effects of mass concentration of chitosan solution and mass ratio of PLA-g-BF grafting copolymer/CS(PVA) solution on the structure

tensile strength

morphology

hydrophilicity

adhesion and degradability of the prepared bamboo fiber composite hydrophilic membrane were investigated. The results show that when the concentration of CS solution was 1∶40 (g/mL)

the quality ratio of grafting copolymer/CS solution was 2∶40

the tensile strength of the film was 4.93 MPa

the contact angle was 72.9°

the hardness value was 2H

and was basically nondegradable. When the concentration of PVA solution was 7%

the quality ratio of grafting copolymer/PVA solution was also 2∶40

the tensile strength was 17.2 MPa

the contact angle was 53.2°

the hardness value was 5H and was degraded within 6 days.

关键词

PLA-g-BF接枝物聚乙烯醇壳聚糖亲水性

Keywords

PLA-g-BF grafting copolymerPolyvinyl alcoholChitosanHydrophilcity

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