对回收PVC粉末进行了全面的调查
Walid Chaouch1, Slah Msahli1, Mejdi Jeguirim2
1Textile Engineering Laboratory - LGTex, University of Monastir, Monastir, Tunisia.
概括
从织物切片中提取的回收聚乙烯 (PVC) 粉末具有不规则的形状和较差的流动性. 然而,它在不影响最终产品质量的情况下,显示出作为塑醇配方中可持续替代品的潜力.
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
- 回收技术的回收技术
背景情况:
- 聚乙烯 (PVC) 是一种广泛使用的塑料,但其回收利用存在挑战.
- 来自PVC涂层面料的废料提供了回收PVC材料的潜在来源.
- 对回收PVC进行有效的表征对于其成功的工业应用至关重要.
研究的目的:
- 从织物切片中回收PVC粉末的形态和颗粒大小分布的特征.
- 为了评估再生PVC粉末的流动性.
- 评估回收PVC粉末作为塑醇配方中初始PVC树脂的替代品的潜力.
主要方法:
- 使用光学显微镜进行定性形态分析.
- 通过光学显微镜和机械选进行定量颗粒大小分布分析.
- 使用压缩性指数和豪斯纳比率进行流动性评估.
主要成果:
- 回收的PVC颗粒主要是非球形的,具有平坦和延长的形状.
- 颗粒大小分析证实大多数颗粒低于600微米 (93.6%的光学,96.39%的选),其中83.44%在200-600微米之间.
- 流动性测试显示流动性不佳,压缩性指数为26.84%,豪斯纳比为1.37.
结论:
- 从织物切片中回收的PVC粉末具有明显的不规则形态和较差的流动性.
- 尽管存在流量挑战,但该材料的特性表明,它可以作为塑应用中部分或完全替代原始PVC树脂.
- 进一步的研究可以优化这种回收材料的加工,促进可持续的PVC利用.
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