塑料科技2024，Vol.52Issue(6)：67-71,5.DOI:10.15925/j.cnki.issn1005-3360.2024.06.013
纤维预紧力对聚氨酯同质增强复合材料力学性能的影响
Effect of Fiber Preload on Mechanical Properties of Polyurethane Homogeneous Reinforced Composites
摘要
Abstract
Aiming at the difficulty of recycling traditional fiber-reinforced composites and the low strength of homogeneous fiber-reinforced composites,thermoplastic polyurethane homogeneous reinforced composites were prepared by in-mold reaction molding method in this paper.The influence of fiber preload on the properties of the prepared composites was investigated by mechanical property tests and micro-morphology.The results showed that the elongation at break of the composites gradually decreased and the tensile strength and modulus gradually increased with the increase of fiber preload in the range of 0～1.1 N.The tensile strength reaches a maximum of 20.99 MPa and strength enhancement efficiency of 84.6%at a preload of 0.9 N.The modulus enhancement efficiency reaches a maximum of 85.3%at a preload of 1.1 N.The mechanical properties of polyurethane homogeneous reinforced composites can be effectively enhanced by appropriate fiber preload.关键词
聚氨酯/同质增强/单聚合物复合材料/纤维预紧力/力学性能Key words
Polyurethane/Homogenous enhancement/Single polymer composites/Fiber preload/Mechanical properties分类
化学化工引用本文复制引用
曹刚,李明昊,左治江,张逸..纤维预紧力对聚氨酯同质增强复合材料力学性能的影响[J].塑料科技,2024,52(6):67-71,5.基金项目
江汉大学科研项目(06460001) （06460001）
