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Updated: Jun 14, 2025

A Freeze-Thawing Method to Prepare Chitosan-Polyvinyl alcohol Hydrogels Without Crosslinking Agents and Diflunisal Release Studies

A Freeze-Thawing Method to Prepare Chitosan-Polyvinyl alcohol Hydrogels Without Crosslinking Agents and Diflunisal Release Studies

Published on: January 14, 2020

多功能基托桑纳米纤维基海绵材料使用冷解和后交联方法.

Madhurangika Panchabashini Horathal Pedige¹, Akihide Sugawara¹, Hiroshi Uyama¹

¹Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.

|September 2, 2024

概括

研究人员使用基托纳米纤维和二甲基二氧化碳甲基纤维素创造了一种新的,环保的多孔海绵. 这种生物基材料为各种应用提供了出色的形状恢复,阻燃性和吸附能力.

科学领域:

材料科学材料科学材料科学
聚合物化学聚合物化学
生物材料工程生物材料工程

背景情况:

通过聚合物交叉连接制造稳定的多孔海绵材料,在同时相隔和交叉连接方面面临挑战.
现有的方法由于快速的多离子复合沉而难以形成孔隙.

研究的目的:

开发一种简单,环保的技术,用天然聚合物制造稳定的多孔海绵材料.
在聚合物复合材料制造中克服传统孔形成方法的局限性.

主要方法:

使用了一种简单的冷解方法,加上随后的基托纳米纤维 (CSNF) 和二甲基碳甲基纤维素 (DACMC) 的交叉链接.
使用冰晶作为刚性模板来控制孔形成,避免快速的多离子复合沉.

主要成果:

开发了一种基于生物的多孔海绵材料,在潮湿状态下具有显著的形状可回收性,在干燥状态下具有稳定的多孔性.
与商业泡相比,复合材料具有更高的阻燃性和绝热性.
证明了对阴离子和阴离子染料和金属离子的有效吸附能力.

结论:

综合冷解和交叉链接技术为从生物基聚合物制造多功能多孔材料提供了一个有希望的方法.

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Microhoneycomb Monoliths Prepared by the Unidirectional Freeze-drying of Cellulose Nanofiber Based Sols: Method and Extensions

Published on: May 24, 2018

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Last Updated: Jun 14, 2025

A Freeze-Thawing Method to Prepare Chitosan-Polyvinyl alcohol Hydrogels Without Crosslinking Agents and Diflunisal Release Studies

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Microhoneycomb Monoliths Prepared by the Unidirectional Freeze-drying of Cellulose Nanofiber Based Sols: Method and Extensions

Microhoneycomb Monoliths Prepared by the Unidirectional Freeze-drying of Cellulose Nanofiber Based Sols: Method and Extensions

Published on: May 24, 2018

该方法解决了多孔材料制造的关键挑战,为各种工业应用铺平了道路.