使用不同纳米碳材料对硬化乙烯基树脂进行比较研究
Ruirui Yang1, Yating Wang1, Xiaolu Ran2
1Luoyang Ship Material Research Institute, 169 South Binhe Road, Luoyang 471023, China.
Polymers
|January 17, 2024
概括
本研究将纳米碳材料进行比较,用于硬化乙烯基树脂. 石墨烯和单壁碳纳米管 (SWCNTs) 在断裂性方面显示出最显著的改善.
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
- 纳米技术纳米技术
背景情况:
- 乙烯基树脂被广泛使用,但可能很脆.
- 提高断裂性对于许多应用程序至关重要.
- 纳米碳材料为聚合物增强提供了潜力.
研究的目的:
- 评估和比较石墨烯,石墨烯氧化物 (GO),单壁碳纳米管 (SWCNTs) 和多壁碳纳米管 (MWCNTs) 在乙烯基树脂上的硬化效应.
- 为了研究这些纳米碳填充剂对树脂特性的影响.
- 为了确定最佳的纳米碳添加剂,以提高性.
主要方法:
- 四种纳米碳材料 (石墨烯,GO,SWCNTs,MWCNTs) 在乙烯基树脂中使用高速和探头超声波分散.
- 通过光学显微镜观察分散状态.
- 系统地研究改性树脂的粘度,热,拉伸和断裂性.
主要成果:
- 增强硬化纳米碳材料的顺序:SWCNTs > GO > MWCNTs > 石墨烯.
- 添加0.2%重量的石墨烯导致关键应力强度因子 (KIC) 和关键应力能量释放率 (GIC) 分别增加了45%和54%.
- 对于任何改性树脂,没有观察到玻璃过渡温度的显著变化.
结论:
- 不同的纳米碳材料在乙烯基树脂中表现出不同程度的硬化效率.
- SWCNTs和石墨烯在增强骨折性方面特别有效.
- 这项研究为选择纳米碳添加剂提供了指导,以提高乙烯基树脂性.
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