Preparation and Properties of Dialdehyde Microfibrillated Cellulose/Poly(vinyl alcohol) Composite Hydrogels with Tunable Mechanical Properties

MA Sen-sen; YUE Ying-nan; LIU Jie; QIU Jian-hua; WAN Ji-qiang; TANG Ke-yong; ZHANG Jun; ZHENG Xue-jing

doi:10.14028/j.cnki.1003-3726.2023.09.008

您当前的位置：

首页 >

文章列表页 >

Preparation and Properties of Dialdehyde Microfibrillated Cellulose/Poly(vinyl alcohol) Composite Hydrogels with Tunable Mechanical Properties

更新时间：2023-07-26

- Preparation and Properties of Dialdehyde Microfibrillated Cellulose/Poly(vinyl alcohol) Composite Hydrogels with Tunable Mechanical Properties
- Polymer Bulletin Vol. 36, Issue 9, Pages: 1191-1199(2023)
- 作者机构：
  
  1.郑州大学材料科学与工程学院，郑州　450000
  2.河南中烟工业有限责任公司技术中心，郑州　450000
  3.中国科学院化学研究所，北京　100190
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2023.09.008
  CLC：
- Published：20 September 2023，
  
  Received：24 December 2022，
  
  Revised：11 March 2023，
扫描看全文
MA Sen-sen, YUE Ying-nan, LIU Jie, QIU Jian-hua, WAN Ji-qiang, TANG Ke-yong, ZHANG Jun, ZHENG Xue-jing. Preparation and Properties of Dialdehyde Microfibrillated Cellulose/Poly(vinyl alcohol) Composite Hydrogels with Tunable Mechanical Properties. [J]. Polymer Bulletin 36(9):1191-1199(2023)
DOI：

MA Sen-sen, YUE Ying-nan, LIU Jie, QIU Jian-hua, WAN Ji-qiang, TANG Ke-yong, ZHANG Jun, ZHENG Xue-jing. Preparation and Properties of Dialdehyde Microfibrillated Cellulose/Poly(vinyl alcohol) Composite Hydrogels with Tunable Mechanical Properties. [J]. Polymer Bulletin 36(9):1191-1199(2023) DOI： 10.14028/j.cnki.1003-3726.2023.09.008.

摘要

本文探讨了可方便调控力学强度的双醛微纤化纤维素/聚乙烯醇（DAMFC/PVA）复合水凝胶。将DAMFC与PVA溶液混合，利用DAMFC上的醛基与PVA大分子链上羟基的缩醛反应制得DAMFC/PVA水凝胶，并用不同盐溶液进行浸泡。缩醛反应使增强体DAMFC与基体聚合物PVA 之间以共价键方式相连接。在受到应力作用时，应力能高效地从增强体传递到基体，从而使复合水凝胶的力学强度显著提高。此外，经过盐溶液浸泡，盐析作用使PVA水凝胶的力学强度进一步提高，且阴离子种类对力学强度的影响很大。通过调控DAMFC的含量、高碘酸钠的氧化时间及盐溶液阴离子的选择，可在较大范围内调控PVA 复合水凝胶的力学强度，以满足不同应用的需求。

Abstract

In this study

the dialdehyde microfibrillated cellulose/poly(vinyl alcohol) (DAMFC/PVA) composite hydrogels were investigated

with easily controlled mechanical strength. DAMFC/PVA hydrogels were prepared by the acetal reaction occurred between the aldehyde groups on the surface of DAMFC microfibers and the hydroxyl groups on the PVA macromolecular chains. Then the hydrogels were soaked in various salt solutions. Due to the acetal reaction

the reinforcement DAMFC and the matrix polymer PVA were connected by covalent bonds. Under the stress

the load could be efficiently transferred from the reinforcement to the matrix

so that the mechanical strength of the composite hydrogel was significantly improved. In addition

due to the salting out effect

the mechanical strength of the hydrogels was further improved by soaking in salt solutions. The anion species of the salt had a great influence on the mechanical strength. By regulating the content of DAMFC

the oxidation time of NaIO

and the selection of anion in salt solution

the mechanical strength of PVA composite hydrogels can be regulated in a wide range to meet the needs of different applications.

关键词

聚乙烯醇双醛微纤化纤维素水凝胶盐溶液力学强度

Keywords

Poly(vinyl alcohol)Dialdehyde microfibrillated celluloseHydrogelSalt solutionMechanical strength

references

更多指标>

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Preparation and Characterization of Cys-PVA/HEC Triple Shape Memory Hydrogel

An Integrated Poly(vinyl alcohol) (PVA) Scaffold with Hierarchical Structure Prepared by Physical Crosslinking

Biomimetic Natural Polymer Hydrogels for Medical Material Applications

Low Vaporization Enthalpy Hydrogels for Solar Water Purification

Related Author

No data

Related Institution

中国科学院化学研究所

河南中烟工业有限责任公司技术中心

郑州大学材料科学与工程学院

School of Textiles and Fashion, Shanghai University of Engineering Science

School of Materials Science and Engineering, East China Jiaotong University

⁰