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首页> 外文期刊>Waste and biomass valorization >Utilization of Municipal Plastic and Wood Waste in Industrial Manufacturing of Wood Plastic Composites
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Utilization of Municipal Plastic and Wood Waste in Industrial Manufacturing of Wood Plastic Composites

机译：利用市政塑料和木材废料在木塑复合材料的工业制造中

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In this study, Wood Plastic Composites (WPCs) were produced from post-consumer bulky wastes of recycled plastic and wood in order to minimize waste, decrease environmental effects of plastics, reserve natural resources, and support circular economy for sustainable production and consumption. Five different types of polypropylene (PP) or polyethylene (PE) based recycled plastics and wood obtained from urban household bulky wastes were used in the production of recycled WPC composites, r-WPCs. Virgin WPC (v-WPC) and r-WPC compounds were prepared with wood flour (WF) and maleic anhydride grafted compatibilizer (MAPP or MAPE) to evaluate the effect of recycled polymer type and compatibilizer on the mechanical properties. It was found that tensile strength properties of r-WPCs produced from recycled PP (r-PP) were higher than that of the r-WPCs produced from mixed polyolefins and recycled PE. r-WPCs containing anti-oxidants, UV stabilizers, and compatibilizer with different WF compositions were produced from only recycled garden fraction PP (PPFGF) to determine the optimum composition and processing temperature for pilot scale manufacturing of r-WPCs. Based on tensile, impact, flexural, and water sorption properties of r-WPC compounds with different formulations, the optimum conditions of r-WPC compounds for industrial manufacturing process were determined. Surface morphology of fractured surfaces as well as tensile, flexural and density results of r-WPC compounds revealed the enhancement effect of MAPP on interfacial adhesion in r-WPCs. r-WPC products (crates and table/chair legs) based on bulky wastes were produced using an injection molding process at industrial scale by using 30 wt% WF-filled r-WPC compound. This study demonstrated that r-WPC compounds from recycled bulky plastic and wood wastes can be used as a potential raw material in plastic as well as WPC industry, contributing to circular economy.
机译：在本研究中，木质塑料复合材料（WPC）由再生塑料和木材的消费者庞大废物生产，以最大限度地减少浪费，降低塑料的环境影响，保护自然资源，并支持可持续生产和消费的循环经济。在再生的WPC复合材料，R-WPC的生产中使用了五种不同类型的聚丙烯（PP）或聚乙烯（PE）基于城市家用庞大废物的再生塑料和木材。用木粉（WF）和马来酸酐接枝的增容剂（MAPP或MAPE）制备原始WPC（V-WPC）和R-WPC化合物，以评估再循环的聚合物型和增容剂对机械性能的影响。发现，由再生的PP（R-PP）产生的R-WPC的拉伸强度性质高于混合聚烯烃和再循环PE产生的R-WPC的抗拉强度特性。仅通过再循环的庭院级分PP（PPFGF）制备含有抗氧化剂，UV稳定剂和具有不同WF组合物的增容剂的R-WPC，以确定R-WPC的先导尺度制造的最佳组成和加工温度。基于具有不同配方的R-WPC化合物的拉伸，冲击，弯曲和水吸附性，测定了用于工业制造过程的R-WPC化合物的最佳条件。 R-WPC化合物的裂缝表面的表面形态以及拉伸，弯曲和密度结果显示MAPP对R-WPC中界面粘附的增强效果。通过使用30wt％的WF填充的R-WPC化合物，在工业规模处使用注塑方法生产基于笨重废物的R-WPC产品（板条箱和桌/椅腿）。本研究表明，来自再生的笨重塑料和木材废物的R-WPC化合物可作为塑料和WPC工业中的潜在原料，有助于循环经济。

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