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一种无甲,基于大豆蛋白质的高性能粘合剂,增强了高分支硫化聚胺-化树脂
Qian Yan1, Junfang Xue1, Jinbo Wang1
1MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University, Beijing 100083, China; Beijing Key Laboratory of Wood Science and Engineering, Beijing Forestry University, Beijing 100083, China.
International journal of biological macromolecules
|February 19, 2025
概括
一种新型的超分支硫化聚胺-化 (PCDME) 树脂增强了高温大豆粉 (HSM) 蛋白质粘合剂. 这种修改显著提高了先进的粘合剂应用的粘合强度,热稳定性和防潮性.
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
- 粘合剂技术 技术 粘合剂技术
背景情况:
- 基于大豆粉 (HSM) 蛋白质的粘合剂提供了一个可持续的替代品,但往往缺乏足够的性能.
- 提高蛋白质粘合剂的热稳定性和防潮性对于更广泛的工业应用至关重要.
研究的目的:
- 开发一种新型的高分支硫化聚胺-化 (PCDME) 树脂,以提高高温大豆粉 (HSM) 蛋白质基粘合剂的性能.
- 调查PCDME树脂所带来的交叉连接机制和性能增强.
主要方法:
- 合成一个高分支的硫化聚胺-化水素 (PCDME) 树脂.
- 用合成的PCDME树脂对高温大豆粉 (HSM) 蛋白进行修改.
- 通过环开放反应,二硫化物键重新排列,静电相互作用和键形成多重交联网络的表征.
- 评估粘合剂的性能,包括干湿粘合强度和性.
主要成果:
- 经过PCDME修改的HSM粘合剂表现出一个多重交联的网络结构.
- 在内部凝聚力,热稳定性和耐湿性方面观察到显著的改善.
- 25%的HSM/PCDME表现出优异的干结强度 (2.23MPa,+46%) 和湿结强度 (1.52MPa,+322%).
- 性 (粘合力) 增加了150%,具有令人满意的固体含量和对各种基板的粘合力.
结论:
- 自合成的PCDME树脂有效地提高了基于HSM蛋白质的粘合剂的性能.
- 多重交叉连接机制有助于优越的机械性能和耐久性.
- 基于PCDME修饰的蛋白质粘合剂对于要求高强度和阻力的苛刻应用具有很大的潜力.
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