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通过素修饰和纤维增强来开发高性能生物复合材料

Amin Rahmani¹, Ali Abdulkhani², Alireza Ashori³

¹Department of Wood and Paper Science and Technology, Faculty of Natural Resources, University College of Agriculture & Natural Resources, University of Tehran, Karaj, Iran.

Scientific reports

|November 21, 2024

概括

这项研究开发了从未漂白的纤维中改造的素和聚乙烯醇制成的新型生物复合材料,以提高可持续材料应用的热和机械性能.

科学领域:

材料科学材料科学材料科学
聚合物科学聚合物科学
可持续化学可持续化学

背景情况:

对于可持续,高性能材料的需求日益增长.
需要替代石油基聚合物.
使用可再生资源,如木质素和植物性聚合物.

研究的目的:

开发和描述使用TOFA修饰的素 (TeL),酸化PVA (CeP) 和未漂白纤维 (UNB) 的新型生物复合材料.
提高工业应用的生物复合材料的热和机械性能.
研究组件组成对材料性能的影响.

主要方法:

用高油脂肪酸 (TOFA) 和用酸PVA修改卡夫特素.
制造具有不同TeL,CeP和UNB比率的生物复合材料.
使用FTIR,DMA,TGA和抗拉强度测试进行表征.

主要成果:

FTIR证实了素和PVA的成功化.
DMA显示出改善的粘弹性特性,T_g高达179.47°C.
TGA显示了增强的热稳定性和增加的炭产率 (高达47%).
最佳配方 (TeL12-CeP4-UNB4) 实现了8.7 MPa的抗拉强度和59.3 MPa的模量.

结论:

开发了具有增强热和机械性能的高性能生物复合材料.
作为传统聚合物的可持续替代品,已证明其潜力.
在包装,汽车和建筑行业确定了可行的应用.

关键词:

生物复合材料是一种生物复合材料.用酸化的PVA.机械性质机械性质通过TOFA修饰的红素.热稳定性热稳定性

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