高强玻璃纤维双马来酰亚胺树脂预浸料及其复合材料力学性能研究

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Mechanical property of high strength glass fiber reinforced bismaleimide prepreg and its composites

HUANG He'，GAO Limin'，LI Jinliang2* （1. Schol of Materials Science and Engineering，Heilongjiang University of Science and Technology， Harbin，150022；2.Harbin FRP Institute Co.，Ltd.，Harbin 150028）

Abstract：The prepreg withathicknessofO.1mmwasprepared through hot-melt impregnating process，employing the bismaleimideresinas matrixandthe high strength glass fiberasreinforcement.Thephysicochemical propertiesof prepregand themechanicalpropertiesoftheresultedcompositewerestudied.Itis indicatedthatthe prepreg possesses good processability and the viscosity of gradeI，the glass transition temperature of composite （the peak of tanδ） is 400∘C . The 0∘ and 90∘ （20号 tensilestrengthsoftheunidirectionalcompositeare1419.42MPaand47.76MPa，respectively.Thebendingstrengthand the interlaminar shearing strength are 1542.46 MPa and 67.97 MPa，respectively.The results above implied outstanding heat resistance and mechanical behavior of the composite.

Keywords：high strength glassfiber;bismaleimide resin; prepreg; heat resistance; composites; mechanical behavior

1引言

树脂基复合材料是用短切或连续纤维及其织物增强热固性或热塑性树脂基体，采用一定的成型工艺复合而成[1-3]。（剩余5693字）