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本文采用模压成型法制备纺织结构碳纤维增强聚苯硫醚基(carbon fiber fabric/polyphenylene sulfide,CFF/PPS)复合材料层压板,通过纤维改性处理和模压工艺优化,得到力学性能优异的CFF/PPS复合材料。采用DSC、TGA、流变行为测试等手段对PPS基体性能进行了表征。基于分析结果,考察了模压成型温度、压力、时间和加载方式等工艺参数对复合材料力学性能的影响,并初步探讨了这些因素对材料结构与性能的调控机制。在最佳工艺参数下制得的层压板拉伸强度为762.31 MPa,弯曲强度720.93 MPa,层间剪切强度58.90 MPa,冲击强度46.18KJ/m2。借助SEM、金相显微镜等表征手段观察到,PPS基体完全渗透于纺织结构碳纤维单丝之间,复合材料层压板内部没有发现微观孔隙。
In this paper, the CFRP / PPS composites with carbon fiber reinforced polyphenylene sulfide (CFF / PPS) composites were prepared by compression molding. The CFF / PPS with excellent mechanical properties was obtained by fiber modification and molding process optimization. Composites. The properties of PPS matrix were characterized by DSC, TGA and rheological behavior test. Based on the analysis results, the influence of process parameters such as molding temperature, pressure, time and loading method on the mechanical properties of the composites was investigated. The mechanism of these factors on the structure and properties of the composites was also discussed. The tensile strength of the laminates prepared under the best processing parameters was 762.31 MPa, flexural strength 720.93 MPa, interlaminar shear strength 58.90 MPa and impact strength 46.18 KJ / m2. By means of SEM, metallographic microscope and other characterization methods, it was observed that the PPS matrix completely infiltrated between the carbon fiber monofilaments in the textile structure, and no microscopic pores were found inside the composite laminate.