用头发增强的弹性体矩阵复合材料:配方,机械测试和先进的微观结构特性.
Eugene S Statnik1, Julijana Cvjetinovic2, Semen D Ignatyev1
1«LUCh» Lab, NUST MISIS, 119049 Moscow, Russia.
Polymers
|November 25, 2023
概括
人类头发增强的乙烯复合材料显示了机械性能的显著改善. 这种可持续材料提供了增强的刚性和强度,为传统的不可回收复合材料提供了可行的替代品.
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
- 复合材料 复合材料 复合材料
背景情况:
- 传统的环氧矩阵复合材料提供了高性能,但其可回收性和生物降解性较差.
- 碳化弹性体复合材料是一个可回收的替代品,目前正在研究各种填充剂.
- 正在探索可再生有机纤维,就像人类头发一样,作为弹性质矩阵的可持续增强剂.
研究的目的:
- 为了研究用人类头发增强的乙烯 (HH-NBR) 复合材料的机械性能.
- 为了评估人类头发在固化和碳化状态中的增强效应.
- 评估矩阵内毛纤维的界面粘合和空间分布.
主要方法:
- 单向和准同位素HH-NBR复合材料的生产,具有不同的毛体积分数.
- 使用扫描电子显微镜 (SEM),拉曼光谱和光声显微镜进行表征.
- 机械测试包括拉力测试,以确定弹性模量,最终拉力强度和损伤耐受性.
主要成果:
- 观察到弹性模量 (高达10倍) 和最终抗拉强度 (高达3倍) 的显著提高.
- 加强复合材料的损伤耐受性得到了改善.
- SEM证实了人类头发纤维与乙烯基母体之间的交界粘合是令人满意的.
结论:
- 人类头发作为一个有效的强化纤维,用于乙烯复合材料.
- 开发的HH-NBR复合材料与未加材料相比,具有优越的机械性能.
- 光声学显微镜显示了非破坏性测试和纤维分布的3D重建的潜力.
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