国产T800级碳纤维上浆剂与树脂基体匹配性研究

doi:10.19936/j.cnki.2096-8000.20260828.018

摘要/Abstract

摘要： 采用流变分析仪、傅里叶变换红外光谱(Fourier Transform Infrared Spectroscopy,FTIR)及差示扫描量热法(Differential Scanning Calorimetry,DSC)等表征手段,分析了湿法纺丝和干喷湿纺工艺国产T800级碳纤维上浆剂及高温环氧树脂的黏-温特性与化学成分,考察了上浆剂与树脂的固化反应动力学特性,研究了上浆剂与树脂的反应特性和匹配性。研究结果表明:两种纺丝工艺的上浆剂与BA9918E树脂反应性能匹配度较高,树脂分子与上浆剂分子可互相渗透;GW800G碳纤维上浆剂与BA9918E树脂的活化能相当,更容易与碳纤维表面的活性基团以及环氧树脂发生化学结合;上浆剂加入使树脂放热反应提前,上浆剂/树脂混合体系反应过程中官能团发生变化,表明树脂与上浆剂可发生化学反应,即碳纤维上浆剂与环氧树脂有良好的化学反应性,有利于碳纤维与树脂形成良好的界面匹配。

关键词: 国产T800级碳纤维, 纺丝工艺, 上浆剂, 匹配性, 界面结合

Abstract: Characterization methods such as a rheological analyzer, FTIR (fourier transform infrared spectroscopy), and DSC (differential scanning calorimetry) were used to analyze the viscosity-temperature characteristics and chemical compositions of domestic T800 grade carbon fiber sizing agents produced by wet-spinning and dry-jet wet spinning processes, as well as high temperature epoxy resins. The curing reaction kinetic characteristics of the sizing agents and the resin were investigated, and the reaction characteristics and compatibility between the sizing agents and the resin were studied. The research results showed that the sizing agents of the two spinning processes have a high degree of compatibility with the reaction performance of the BA9918E resin. The resin molecules and sizing agent molecules can penetrate each other. The activation energy of GW800G carbon fiber sizing agent is equivalent to that of BA9918E resin, and it is easier to chemically bond with the active groups on the carbon fiber surface and the epoxy resin. The addition of the sizing agent advances the exothermic reaction of the resin, and the functional groups change during the reaction process of the sizing agent/resin mixture system, indicating that a chemical reaction can occur between the resin and the sizing agent. This indicates the carbon fiber sizing agent and the epoxy resin have good chemical reactivity, which is conducive to the formation of a good interfacial compatibility between the carbon fiber and the resin.

Key words: domestic T800 grade carbon fiber, spinning process, sizing, compatibility, interfacial compatibility

中图分类号:

TB332

田铁兵, 逯佳慧, 白钰, 彭公秋, 李国丽, 曹正华. 国产T800级碳纤维上浆剂与树脂基体匹配性研究[J]. 复合材料科学与工程, 2026, 0(8): 144-152.

TIAN Tiebing, LU Jiahui, BAI Yu, PENG Gongqiu, LI Guoli, CAO Zhenghua. Study on the compatibility between domestic T800 grade carbon fiber sizing and resin matrix[J]. COMPOSITES SCIENCE AND ENGINEERING, 2026, 0(8): 144-152.

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