内部气体固化技术对热塑性纳米复合材料增强件发展的影响
Husam Saber Totah1, Iqbal Ahmed Moujdin1,2, Hani Abdulelah Abulkhair1,2
1Department of Mechanical Engineering, King Abdulaziz University, P.O. Box 80200, Jeddah 21589, Saudi Arabia.
Materials (Basel, Switzerland)
|November 25, 2023
概括
碳纳米管增强不和聚和乙烯基复合材料. 与空气固化相比,二氧化碳固化显著降低了收缩,并提高了拉伸强度和海水耐受性.
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
- 纳米技术 纳米技术
背景情况:
- 不和聚 (UPE) 和乙烯基 (VE) 是广泛使用的环氧矩阵.
- 提高这些复合材料的机械性能和稳定性对于各种应用至关重要.
- 多壁碳纳米管 (MWCNTs) 以其强化能力而闻名.
研究的目的:
- 描述UPE和VE复合材料的收缩和拉伸强度.
- 调查MWCNTs对这些属性的兴奋剂的影响.
- 为了比较空气固化纳米复合材料与二氧化碳固化纳米复合材料的性能.
主要方法:
- 用不同的MWCNT含量制备UPE/MWCNT和VE/MWCNT纳米复合材料.
- 在环境空气和二氧化碳 (CO2) 大气下处理样品.
- 固化动力学,收缩,拉伸性质和表面自由能量的表征.
- 在缩盐水中的性能评估.
主要成果:
- 与空气固化相比,二氧化碳固化导致显著较低的收缩率和更高的抗拉强度和弹性模量.
- 较少量的MWCNT增强了纳米复合材料在缩盐水中的稳定性.
- 空气和二氧化碳固化样本均表现出无的表面.
- 经过二氧化碳固化的UPE和VE纳米复合材料显示出更好的水吸收阻力和海水耐用性.
结论:
- 二氧化碳固化是一种优质的方法,可以提高UPE和VE纳米复合材料的机械性能并减少收缩.
- 增强MWCNT,特别是在较低度下,提高了这些复合材料在盐水环境中的稳定性和耐用性.
- 这些发现表明,在海洋或恶劣环境应用中,性能可能会得到改善.
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