復(fù)合材料夾芯銅網(wǎng)結(jié)構(gòu)真空導(dǎo)入工藝研究

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Research on vacuum infusion process of composite sandwich copper mesh structure

AN Chao*，SONG Pengfei，LIU Yenan，WEI Long，HE Yi （Hebei Province Multi-Base Composite Materials Industry Technology Research Institute Co.，Ltd.，Hengshui O53100）

Abstract：Thisstudy focusedontheproblems ofuneven infiltrationandinterfacedelaminationinthe VARI（Vacuum AssistedResin Infusion）processof thecompositematerial sandwichcoppermesh structure.Itsystematicallyinvestigatedthe influenceofthecopper mesh structureandtheinjection positionontheresinflowbehaviorandthequalityof thefinal products.Bydesigning differentcopper mesh aperture sizes，copper mesh wirediameters，laying methods，and injection positions，theoptimizationpathsofresinpermeabilityandporositywereanalyzed.Theexperimentalresultsshowedthatdifrent lay-upsequences andresin feed inletpositions had no significant impactonthecomposite material products.Thecopper wirespecification hadagreater impactonthecomposite material products.Whenthewire diameter was O.315，theaverage porosity was the smallest，with a value of 1.46% ，and when the wire diameter was O.4Oo，the interface bonding strength wasthegreatest，withavalueof 24.4MPa.Overall assessment showsthat thecomposite material productswithcopper mesh specification of GF1W1.25/O.4OO in the second group have the best performance.

Keywords： vacuum introduction；core copper mesh；low porosity

1引言

隨著航空航天領(lǐng)域、電子設(shè)備領(lǐng)域和新能源領(lǐng)域?qū)Ξa(chǎn)品輕量化、多功能等性能需求的增長，同時具備結(jié)構(gòu)承載與導(dǎo)電功能的夾芯銅網(wǎng)復(fù)合材料成為當(dāng)前研究熱點(diǎn)。（剩余5005字）