基于回收的高密度聚乙烯和木材废弃物 (木) 的木塑复合材料
Camilo Oliveros-Gaviria1, Edwin Cumbalaza1, Jose Herminsul Mina-Hernandez1
1Escuela de Ingeniería de Materiales, Grupo Materiales Compuestos, Universidad del Valle, Calle 13 No. 100-00, Cali 760001, Colombia.
Polymers
|November 27, 2024
概括
这项研究使用粉来增强回收高密度聚乙烯 (rHDPE) 木塑复合材料 (WPC). 优化的配方提高了机械强度和刚度,使它们适合用于室外应用,如百甲板.
科学领域:
- 材料科学与工程 材料科学与工程
- 聚合物科学 聚合物科学
- 可持续材料 可持续材料
背景情况:
- 木塑复合材料 (WPC) 通过将天然纤维纳入回收塑料中,提供了一个可持续的替代品.
- 从吹塑容器中回收的高密度聚乙烯 (rHDPE) 提供了材料价值化的机会.
- 优化WPC配方对于提高机械性能和扩大应用潜力至关重要.
研究的目的:
- 使用回收的高密度聚乙烯 (rHDPE) 和木材粉,重新制定和优化木塑复合材料 (WPC).
- 调查粉含量对基于rHDPE的WPC机械和热性能的影响.
- 开发适合结构应用的增强型WPC配方,如百甲板.
主要方法:
- 使用配置挤出加工WPC样品的加工.
- 机械测试包括拉伸,曲,硬度和压缩测试.
- 热分析包括差分扫描热量计 (DSC),热重力测量分析 (TGA),维卡特软化温度和热偏移温度 (HDT).
- 使用Minitab 21软件进行统计分析以优化配方.
- 自然和加速老化试验,以评估材料的耐用性.
主要成果:
- 基于rHDPE的WPC中的粉含量增加导致拉伸和屈曲强度以及模量略有改善.
- 与整洁的rHDPE相比,与较高的粉结合观察到增强的刚性.
- 优化的配方显示出卓越的机械性能和适合于苛刻的应用.
结论:
- 回收高密度聚乙烯 (rHDPE) 和木材粉可以有效地结合起来,以创建可持续的木塑复合材料 (WPC).
- 使用统计工具的配方优化显著提高了WPC的机械性能.
- 开发的WPC显示出用于户外应用的前景,如百甲板,为循环经济做出贡献.
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