热塑性树脂基复合材料用碳纤维上浆剂研究进展

Research progress of carbon fiber sizing agents for thermoplastic composites

与高性能热塑性树脂不匹配、耐热性偏低的传统上浆剂越发难以满足热塑性树脂基复合材料快速发展与应用的需求,开发面向热塑性树脂基复合材料的碳纤维上浆剂具有重要意义。本文对上浆剂的主要作用效果、上浆剂与增强材料和基体树脂间的相互作用、热塑性树脂基复合材料用碳纤维上浆剂的主要特点进行了概述;对聚酰胺、聚氨酯、聚芳醚、聚酰亚胺及其他类型上浆剂的研究进展进行了重点论述,结合各体系的性能特点和主要问题,梳理了不同热塑性树脂基复合材料用碳纤维上浆剂的改性途径及近年来在各大生产企业中的研发应用情况,分析和阐明了各自的作用机制与发展现状,对热塑性树脂基复合材料用碳纤维上浆剂的未来趋势进行了展望,并给出了发展建议。

With the rapid development of thermoplastic composites,traditional sizing agents are no longer able to meet the requirements as its incompatibility with thermoplastic matrices and low heat resistance.In light of this,it is fairly significant to master the technologies of sizing agents suitable for high performance thermoplastic composites.Brief introductions including chief purposes of sizing treatment,strengthening mechanisms at the interfaces between reinforcements and matrices,distinguishing features as well as main requirements of carbon fiber sizing agents for thermoplastic composites were presented in this paper.Researches of novel carbon fiber sizing agents consisting of polyamide,polyurethane,polyaryl ether,polyimide and other constituents for various thermoplastic matrices were reviewed in the order of service temperature.Both modification routes of diverse sizing agents for high performance thermoplastic composites and commercial applications provided by carbon fiber manufacturers were presented with their relative merits and existing drawbacks.Furthermore,their corresponding mechanisms and development status were also clarified.Finally,the future trends of sizing agents for thermoplastic composites were forecasted with relevant suggestions provided subsequently in view of different sizing agents to overcome current problems.