通过溶剂分离的高性能基于素的聚氨弹性体
Changgeng Li1, Lu Wu1, Zhongshan Wang2
1Liaoning Key Laboratory of Lignocellulose Chemistry and Biomaterials, The Key Laboratory of High Value Utilization of Botanical Resources of China Light Industry, The Liaoning Province Key Laboratory of Paper and Pulp Engineering, College of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian 116034, China.
Biomacromolecules
|March 2, 2026
概括
研究人员改进了聚氨弹性体,将可再生资源 - - 素纳入其中. 调整红素的调整
科学领域:
- 聚合物科学 聚合物科学
- 材料科学 材料科学 材料科学
- 生物质利用生物质的利用
背景情况:
- 红的不良兼容性和较低的替代性限制了其作为聚氨 (PU) 弹性体中的聚替代物的使用.
- 开发有效的方法来将素整合到PU中对于可持续的材料开发至关重要.
研究的目的:
- 通过调节其分子量来实现PU中的高含量和均的宁结合.
- 为了提高PU弹性体的机械性能,热稳定性和表面疏水性,使用素.
主要方法:
- 为了提高兼容性,对素分子量进行受控的修改.
- 在聚氨宏分子链中加入改性素.
- 机械性能,热稳定性和表面疏水性的表征.
- 制造MXene/PU复合材料用于应变反应器件.
主要成果:
- 即使在15%的替代率下,也实现了素完全整合到PU中,拉伸强度增加了27%,破裂时延长了124%.
- 调整红素分子量导致拉伸强度提高了165%以上.
- 显著提高了由此产生的弹性体的热稳定性和表面水性.
- 在MXene/PU复合器件中表现出敏感应变反应.
结论:
- 调节素分子量有效克服了兼容性问题,使其高含量集成到PU中.
- 素的加入显著提高了PU弹性体的性能,并引入了新的功能.
- 这种方法促进了PU的绿色和可持续发展,用于包括可穿戴设备在内的先进应用.
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