Plastic has been a dominant material for packaging in recent years but due to its nonbiodegradability, it is causing environmental pollution. Among the plastics used, low-density polyethylene is used abundantly. These plastics can be removed from the environment by recycling into useful products through reinforcing it with natural textile fibers into composite materials. Natural fiber-based composites are ecofriendly and low cost. This research is aimed at manufacturing composite wall tiles from recycled low-density polyethylene reinforced with pineapple leaf fibers (PALF). The PALF was extracted by the retting process followed by mechanical scratching and treated with 5% NaOH to improve the fiber-matrix interaction. The composites were manufactured by the melt-mixing method followed by compression molding. The effects of fiber length and fiber weight proportion on composite properties were investigated using tensile, flexural, impact, and water absorption tests. The study showed that the optimum fiber weight proportion and fiber length for the optimal properties of the composite were achieved at 30% fiber weight proportion and 30 mm fiber length. The maximum tensile strength of 1562 N/mm², flexural strength of 454.9 N/mm², and impact strength of 225.2 J/mm² were obtained. Water absorption of the tiles increased with the increase in both the fiber weight proportion and the fiber length.

中文翻译：

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用菠萝叶纤维增强的低密度聚乙烯再生制造浴室墙砖复合材料

近年来，塑料一直是包装的主要材料，但由于其不可生物降解性，正在造成环境污染。在所使用的塑料中，低密度聚乙烯被大量使用。通过使用天然纺织纤维将其增强为复合材料，可以将其回收成有用的产品，从而将其从环境中移除。天然纤维基复合材料环保且成本低廉。这项研究的目标是用菠萝叶纤维（PALF）增强的回收低密度聚乙烯制造复合墙砖。通过脱胶工艺提取PALF，然后进行机械刮擦，并用5％NaOH处理以改善纤维与基质的相互作用。通过熔融混合方法，然后压缩成型来制造复合材料。使用拉伸，弯曲，冲击和吸水测试研究了纤维长度和重量比对复合材料性能的影响。研究表明，在30％的纤维重量比和30 mm的纤维长度下，可实现复合材料最佳性能的最佳纤维重量比和纤维长度。最大抗拉强度1562 N / mm²，的454.9 N /毫米弯曲强度² /，和225.2的J冲击强度毫米²获得。瓷砖的吸水率随纤维重量比和纤维长度的增加而增加。