The Recycling of Sugarcane Fiber/Polypropylene Composites
The Recycling of Sugarcane Fiber/Polypropylene Composites
复制标题
甘蔗纤维/聚丙烯复合材料的回收利用
DOI：
10.1590/1516-1439.321314
复制
发表时间：
2015
影响因子：
1.7
通讯作者：
A. Christoforo
中科院分区：
文献类型：
--
作者：
R. Leão;S. Luz;J. A. Araújo;A. Christoforo
机械回收利用是通过对工业设备中的材料进行再加工来再利用废物并获得其他塑料产品。近年来，天然纤维复合材料越来越受欢迎;然而，这些复合材料的力学行为仍然不如单一聚合物在回收后的行为那么好理解。因此，这项工作的目的是研究不同的甘蔗纤维/聚丙烯复合材料的降解，使用新的研磨和注射工艺，并使用方差分析（ANOVA）来评估这些材料的机械性能。本工作揭示了含有热稳定剂添加剂的回收天然纤维复合材料的力学行为。用不同处理的甘蔗渣和秸秆纤维（10和20重量%/PP）增强聚丙烯复合材料，获得通过熔融混合使用高强度热动力混合器，随后注射。回收的复合材料表现出降低的拉伸强度相对于原始复合材料。然而，当添加热稳定剂时，机械性能保持或增加，这取决于纤维和添加剂类型。
Mechanical recycling is utilized to reuse waste and obtain other plastic products via the reprocessing of a material in industrial equipment. Natural fiber composites have become more popular in recent years; however, these composites' mechanical behavior remains less well-understood than single polymers’ behavior after recycling. Therefore, the objective of this work was to study the degradation of different sugarcane fibers/polypropylene composites using new grinding and injection processes and to evaluate the mechanical properties of these materials using analysis of variance (ANOVA). This work reveals the mechanical behaviors of recycled natural fiber composites that contain thermal stabilizer additives. Polypropylene composites reinforced with differently treated bagasse and straw fibers (10 and 20 wt%/PP) were obtained through melt mixing using a high-intensity thermokinetic mixer and were subsequently injected. The recycled composites exhibited decreased tensile strength relative to the original composites. However, when thermal stabilizers were added, the mechanical properties were maintained or increased, depending on the fiber and additive types.