回收PET复合材料的材料特性用于结构固和其他土木工程应用
Krzysztof Adam Ostrowski1, Paulina Romańska2,3, Mariusz Spyrowski4
1Faculty of Civil Engineering, Cracow University of Technology, Warszawska 24, 31-155, Kraków, Poland. krzysztof.ostrowski.1@pk.edu.pl.
Scientific reports
|October 21, 2025
概括
使用玻璃纤维的回收PET (rPET) 复合材料在建筑领域显示出前途. 这些可持续材料在和连接器等应用中提供与原始PET相当的机械性能.
科学领域:
- 材料科学 材料科学 材料科学
- 土木工程 土木工程是指土木工程.
- 聚合物科学 聚合物科学
背景情况:
- 在土木工程中对可持续材料的需求不断增长.
- 需要对回收塑料的高价值应用,如回收聚乙烯二甲酸 (rPET).
- 由于对性环境中的耐用性存在担忧,建筑中rPET的使用有限.
研究的目的:
- 评估由100%rPET和抗玻璃纤维制成的注射成型复合材料的性能.
- 评估这些复合材料是否适用于建筑部件,特别是和连接器.
- 为了确定rPET复合材料是否能与原始PET复合材料的性能相匹配.
主要方法:
- 制备rPET复合材料,其中玻璃纤维的重量百分比不同 (30%,40%,50%).
- 机械测试包括拉伸模量,屈曲强度和Charpy冲击强度.
- 微机械分析和扫描电子显微镜 (SEM) 用于质量和均性评估.
主要成果:
- 添加玻璃纤维改善了RPET的流动特性和结晶动力学.
- 增强的机械性能:拉伸模量高达19GPa,屈曲强度高达234MPa,冲击强度高达31kJ/m2.
- 复合材料的性能与商业原始PET相美,其高质量和均性得到了SEM的证实.
结论:
- 用玻璃纤维增强的100%rPET复合材料适用于非导电,注射成型建筑部件.
- 这些材料具有有利的性能和加工特性,适用于在水泥和性环境中的应用.
- 目前正在对等特定组件进行进一步调查,这表明可持续建筑解决方案的巨大潜力.
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