检查制拉米根增强聚复合材料的静态和动态机械特性
T VarunKumar1, M Jayaraj2, N Nagaprasad3
1Department of Mechanical Engineering, P.A College of Engineering and Technology, Pollachi, Tamilnadu, 642002, India.
Scientific reports
|October 10, 2023
概括
这项研究探讨了使用废弃的拉米根粉作为聚复合材料中的填充剂. 最佳的30:70比率显著提高了潜在的轻载应用的机械性能和热稳定性.
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:
- 废物利用对于可持续的材料开发至关重要.
- 拉米根是一种纤维素农业副产品,为复合材料增强提供了机会.
- 聚复合材料提供了多功能应用,但可以用天然填充剂来增强.
研究的目的:
- 为了研究在聚复合材料中未经处理的拉米根粉的有效利用.
- 为了确定最佳的组合,以提高机械和热性能.
- 为了评估拉米根填充剂对复合材料性能的影响.
主要方法:
- 使用压缩成型制造四个复合板,使用不同的拉米根粉 (20%,30%,40%) 和不和聚树脂比例.
- 测量了机械性能,动态机械分析和吸水能力.
- 热重力测量分析 (TGA) 和扫描电子显微镜 (SEM) 用于评估热稳定性和断裂行为.
主要成果:
- 复合物中30:70的拉米根粉与不和聚树脂的重量比例显示出最大的机械性能.
- 增加的拉米根含量导致更高的玻璃过渡温度,储存模量和损失因子.
- 拉米根的包含将热降解峰值从370°C转移到418°C,表明热稳定性得到改善.
- 在30:70的比例下实现了最佳的纤维-矩阵粘附,通过水吸收测量得到证实.
结论:
- 废弃拉米根粉可以有效地用作聚复合材料中的增强填充剂.
- 30:70的拉米根与聚的比率产生了卓越的机械和热性能.
- 这些开发的复合材料由于其稳定性,抗拉强度和曲刚度,显示出用于轻载荷应用的潜力.
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