用于农业应用的聚烯复合材料中使用红石膏废物的回收利用
Chiara Pedrotti1, Damiano Rossi1, Marco Sandroni1
1Dipartimento di Ingegneria Civile ed Industriale (DICI), Università di Pisa, Largo Lucio Lazzarino 1, 56122 Pisa, Italy.
Polymers
|July 12, 2025
概括
来自TiO2生产的红石膏 (RG) 可以用于用于农业应用的聚烯 (PP) 复合材料. 这些PP/RG复合材料无植物毒性,适合制造植物盆,提供可持续的废物回收解决方案.
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
- 废弃物价值化 废弃物价值化 废弃物价值化
背景情况:
- 红石膏 (RG) 是二氧化 (TiO2) 生产的重要副产品.
- 工业废物利用对可持续制造至关重要.
- 热塑性复合材料在农业中提供了多样化的应用.
研究的目的:
- 研究红石膏 (RG) 作为聚烯 (PP) 基复合材料中的填充剂的工业潜力.
- 开发和描述用于农业应用的PP/RG复合材料.
- 评估开发的复合材料的植物毒性和功能性质.
主要方法:
- 红石膏经过热处理,得到无水形式 (CaSO4).
- 聚烯/红石膏复合材料的配方高达20%的RG和酸 (SA) 作为兼容剂.
- 材料使用FTIR,SEM和机械测试进行了表征;植物毒性通过种子发芽测试进行了评估.
主要成果:
- 酸改善了PP/RG复合材料中的RG分散和界面粘附.
- 增强了机械性能,包括Young's Modulus,同时尽量减少柔性损失.
- 复合物化物没有表现出植物毒性,与RG粉末不同,由它们制造的植物具有理想的深棕色.
结论:
- 热处理的红石膏可以有效地用作聚烯复合材料中的功能性填充剂和颜料.
- 开发的PP/RG复合材料适用于农业应用,如植物盆,证明了废弃物的成功利用.
- 该研究强调了在材料开发中利用工业副产品的可持续方法.
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