黏胶丝基碳布/热熔法树脂复合材料制备及其性能研究

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Study on the preparation and properties of composites made from viscose carbon fiber cloth/thermoplastic resin

Jin Qianqian，Li Jian，Xing Xiaolong*，Liu Xuanchen，Huang Jinxin （Xi'an Aerospace Composites Research Instiute，Xi'an 710025）

Abstract：Composite material was preparedusing the viscosecarbonfibercloth/thermoplasticresinbythefilamentwinding proce，anditsinternalqualityandmechanical properties，thermalproperties，andcombustionperformanceweretested.The results showthatterearenoobviouscracks，delamination，orotherdefectsinsidethcompositematerial testpiece，andthe density value fluctuates between 1.442-1.457 g/cm3.The interlaminar shear strength isbetween 20-26.1 MPa，and heoxygenindexcombustionratefluctuatesbetweenO.Oo6-0.O08 mm/s，which isslightlylower thanthatof thecommonlyused polypropyleneresinreinforced phenolicresin composite insulation material，and has excellntcombustionresistance.The thermal conductivity at RT， 100∘ C，and 200∘C fluctuates between O.532-0.689 W/（m.K），and the specific heat capacity fluctuates betweenO3-1851J/（kg.K）.Withtheincreaseof temperature，thethermalconductivitychanges slightlyandthespecificheatcapacityincreases.Comparedwiththepolypropyleneresincarbon fiber/phenolicresincomposite material，thethermalconductivityandspecificheatcapacityofthematerialaemoreadvantageous，ndicatingthatthematerialhasbeerthermalinsulationperformance and thermal stability，and has more advantages in high-temperature environments.

Keywords：viscosecarbonfibercloth;phenolicresin;compositematerial;combustionresistance;thermal properties

1引言

在航空航天及国防科技领域，材料在极端高温环境下的性能稳定性直接决定了关键部件的工作寿命和可靠性。（剩余4201字）