An experimental methodology to determine the parameters of the compression molding process of composite materials made of recycled thermoplastic and recovered wood

ABSTRACT The objective of this research is to determine the sintering process parameters of wood-plastic composite materials (WPC) manufactured by compression molding and with better properties from an engineering point of view. The structure of this article is, by itself, a proposal of experimental methodology to obtain WPC from recycled thermoplastic particles and recovered wood. This methodology includes the characterization of both starting materials and compression-molding tests, to determine in a first stage the temperature and time of sintering and, in a second stage, the content and size of the wood particles. Using recovered capirona wood (RCW) and recycled polypropylene (RPP); these parameters are evaluated by standardized tests on molded samples. For this case, the parameters are: 50 min of time into the oven at 190 °C, 30% and 70% in volume of RCW and RPP respectively and RCW particles from 0,98 mm to 1,90 mm of size.

摘要 本研究旨在确定采用模压工艺制备的木塑复合材料（Wood-Plastic Composite, WPC）的烧结工艺参数，以获得工程视角下性能更优异的制品。本文的结构本身即为一套实验方法论提案，该方法以回收热塑性颗粒与回收木材为原料制备木塑复合材料。该方法论涵盖两类起始原料的表征测试与模压成型试验，具体分为两个阶段：第一阶段确定烧结温度与烧结时长，第二阶段确定木材颗粒的含量与粒径尺寸。本研究选用回收卡皮罗纳木材（Recovered Capirona Wood, RCW）与回收聚丙烯（Recycled Polypropylene, RPP）作为原料，并通过对模压成型试样开展标准化测试来评估上述工艺参数。针对本案例，最优工艺参数为：190℃烘箱保温50分钟，回收卡皮罗纳木材（RCW）与回收聚丙烯（RPP）的体积占比分别为30%与70%，且RCW颗粒粒径范围为0.98 mm至1.90 mm。