改性原始纤维素丝材料作为固体绝缘聚氨泡中的聚醇替代品
Manon Beaufils-Marquet1,2, Pierre Blanchet1,2, Loïse Cao1,2
1Department of Wood and Forest Sciences, Faculty of Forestry, Geography, and Geomatics, Université Laval, 2405 rue de la Terrasse, Québec City, QC, G1V 0A6, Canada.
Scientific reports
|February 26, 2025
概括
改性纤维素丝被探索为聚氨泡的生物基聚,显示有希望的导热性,但未能满足加拿大细胞结构和机械强度的标准.
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
- 可持续材料 可持续材料
背景情况:
- 目前建筑绝缘研究重点是聚氨泡和生物基替代品,特别是聚合物.
- 聚合物是聚氨泡生产的关键组成部分,影响泡的性能和性能.
研究的目的:
- 调查改性纤维素丝 (CFs) 在聚氨泡中作为生物基聚的使用.
- 评估基于CF的多对泡形成,形态,导热率和机械性能的影响.
主要方法:
- 使用两种以太化方法来修改纤维素丝,从而创建反应性以太功能.
- 聚合物和由此产生的聚氨泡的特性,包括动力学,形态学,密度,导热率和机械压缩测试.
主要成果:
- 修改后的CFs降低了泡的反应性,影响了细胞大小和开放,导致不符合加拿大标准.
- 机械性能恶化,硬度和屈服强度降低.
- 使用70%CF替代的泡表现出显著的导热率 (0.041 W m-1 K-1).
结论:
- 改性纤维素纤维丝显示出作为聚氨泡的生物基聚的潜力,特别是用于隔热.
- 需要进一步的研究来优化CF的修改和加工,以满足建筑应用的机械和结构标准.
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