改性聚苯醚玻纤增强复合材料在商用车蓄电池箱体中的开发与应用

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中图分类号：TQ327.8 文献标志码：B DOI：10.19710/J.cnki.1003-8817.20250167

AnalysisofApplicationon ModifiedFiberglassReinforced Polyphenylene Ether Composite Materials for the Battery PackofCommercialVehicle

Jin Quanjun， Li Shipeng， Lin Zengyong， Yang Mengmeng， Huang Yanling， Lu Lingfang （Zhejiang GeelyNew Energy Commercial Vehicle Groud Co.，Ltd.，Hangzhou 311228）

Abstract：Based on the material designanalysisof modified POLYPHENYLENE ETher （PPE） glass fiberreinforcedcomposites，aFiniteElement Model（FEM）of thecommercial vehiclebatteryboxis established.Modaland randomvibration simulationanalysesareconducted，and thevibrationreliabilityverificationof thebattery box is completed.The results show that when the density ofthe modified PPE glass fiber-reinforced composite is 1.251g/cm3 itscantilever beam impact strength reaches 10.4MPa ；thenotched impact strength of the simply supported beam（at 23 ）is 9.8kJ/m2 ;itscombustionproperties reach the V-O level，and the water absorption rate isonly O.12.In terms of productperformance，the first-ordermodal frequencyof the bateryassemblyusing themodifiedPPEcomposite reaches 172.38Hz ；themaximum stressunder random vibrationisonly 6.7MPa .Throughverificationbyperformance tests on the vibration test bench of the batery box，the product is confirmed to be safeandreliable.

Keywords：Modified fiberglassreinforced polyphenylene ethercompositematerials，The batterypack， Themodal properties，Therandomvibrationproperties，Vibrationreliability

1前言

玻纤增强热塑性复合材料是一类由无机和有机材料复合而成的复合材料，具有优良的机械性能（如刚度和强度高）耐热性、长使用寿命，且可重复回收利用[1-2]，而玻纤增强热塑性复合材料所用的主要树脂材料为聚酰胺（Polyamide，PA），这种材料在汽车内外饰中得到了广泛的应用。（剩余5004字）