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脱甲基化红素-Fe3+化协同构建了三重网络木材粘合剂与大豆蛋白
1College of Home and Art Design, Northeast Forestry University, Harbin, 150040, PR China.
International journal of biological macromolecules
|December 11, 2025
概括
这项研究创建了一个高性能的生物基大豆蛋白/木质素粘合剂,使用改性木质素和铁. 新的粘合剂显示了对合板应用的强度,耐水性和稳定性的改进.
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
- 绿色化学 绿色化学
背景情况:
- 开发可持续的粘合剂对于减少对环境的影响至关重要.
- 生物质成分宁具有作为粘合剂前体的潜力,但需要进行修改.
- 豆蛋白分离物 (SPI) 是一种可行的生物基粘合剂,但通常缺乏足够的性能.
研究的目的:
- 开发一种高性能生物基粘合剂,使用改性性木质素和SPI.
- 研究一种涉及化学修饰和金属化的协同交叉连接策略.
- 为了提高粘合剂的机械强度,耐水性,热稳定性和耐用性.
主要方法:
- 使用硫酸从玉米 (MAL) 中取出性素的定向去甲基化.
- 加入FeCl3·6H2O以创建一个三重协同交叉连接网络 (,共价,离子键).
- 评估粘合剂性能,包括剪切强度,耐水性,热稳定性和抗性质.
主要成果:
- 改性红素 (MAL) 呈现出增加的酸含量和反应性.
- 三重协同交叉连接网络显著提高了干燥和湿切断强度,分别为81.52%和103.45%.
- 粘合剂符合中国国家标准GB/T 9846-2015的内部合板,并显示出更好的耐水性,热稳定性和抗性能.
结论:
- 化学修饰-金属化策略为高价值素利用提供了一种有效的方法.
- 开发的大豆蛋白/素粘合剂是木材粘合应用的有希望的环保替代品.
- 进一步的研究应该专注于优化合剂的工业适应性.
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