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一项基于生物炭作为辐射废弃热塑性复合材料的强化剂的研究,用于聚合物工程和电磁屏蔽应用

Mona Y Elnaggar¹, E G Zaki^2,3, L A Wahab⁴

¹Polymer Chemistry Department, National Centre for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt.

Environmental technology

|January 6, 2025

概括

这项研究用皮生物炭 (BC) 和马射线辐射增强废弃聚乙烯 (WPE) 生物复合材料. 通过15 Phr BC和100 kGy辐射获得最佳性能,改善了机械,热,光学和EMI屏蔽性能.

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
可持续材料可持续材料

背景情况:

废聚乙烯 (WPE) 和处女聚乙烯 (VPE) 混合物是广泛使用的热塑性塑料.
来自农业废物 (如皮) 的生物炭 (BC) 提供了一个可持续的填充选项.
玛 (γ) 射线辐射是一种修改聚合物特性的方法.

研究的目的:

研究生物炭含量和gamma射线辐射对聚乙烯基生物复合材料性能的影响.
评估机械,热,光学,电导和电磁干扰 (EMI) 屏蔽特性.
为了确定最佳的加工参数,以提高材料性能.

主要方法:

在5,10和15分钟内将WPE/VPE (50:50) 与色皮生物炭 (BC) 混合化.
准备好的生物复合材料在高达100kGy的剂量下进行γ-ray辐射.
机械,热,光学,电导和EMI屏蔽性能的表征.

主要成果:

观察到增强的机械性能,特别是在15 Phr BC和γ射线照射下.
添加BC提高了聚乙烯复合材料的热和光学性能.
经过10 Phr BC和100 kGy辐射的复合材料显示出增强的电导率 (ac) 和介电常数.
在1毫米厚的样本中,高EMI屏蔽效率 (EMI SE) 达到4.7dB,用15PhrBC实现.

结论:

将废弃聚乙烯与皮生物炭和γ射线辐射相结合,可以产生先进的生物复合材料.
开发的生物复合材料表现出改进的机械,热,光学和电气性能.
这些材料显示出需要有效电磁干扰屏蔽的应用的潜力.

关键词:

欧洲货币基金组织 (EMI) 是这是一个VPE VPE.纸质布 (WPE) 的使用方法农业废弃物农业废弃物生物炭是一种生物炭.

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