Lignocellulose fiber (LCF)-reinforced high-density polyethylene (HDPE) or polypropylene (PP) composites were prepared with a twin-screw extruder using a maleic anhydride-modified polyolefin as a compatibilizing agent. The effect of a compatibilizing agent on the mechanical properties of the composites was investigated. Acoustic emission (AE) measurements were conducted during tensile testing to evaluate the micro-fracture process of the composites. The mechanical properties of the LCF-polyolefin composites were greatly increased by the addition of a compatibilizing agent. In particular, the tensile strengths for the 20 mass% LCF/HDPE and 30 mass% LCF/PP composites were improved by 30% and 57%, respectively, when a compatibilizing agent was used. Differences in the AE behaviors of composites with and without a compatibilizing agent indicated that the use of a compatibilizing agent changed the fracture mode of the composites from interfacial fracture to CF fracture.

中文翻译：

---

增容剂对木质纤维素纤维增强聚烯烃纤维基体附着力及力学性能的影响

木质纤维素纤维 (LCF) 增强的高密度聚乙烯 (HDPE) 或聚丙烯 (PP) 复合材料使用双螺杆挤出机制备，使用马来酸酐改性的聚烯烃作为增容剂。研究了增容剂对复合材料力学性能的影响。在拉伸试验期间进行声发射 (AE) 测量以评估复合材料的微断裂过程。LCF-聚烯烃复合材料的机械性能通过添加相容剂大大提高。特别是，当使用增容剂时，20 质量% LCF/HDPE 和 30 质量% LCF/PP 复合材料的拉伸强度分别提高了 30% 和 57%。