Abstract:Newglassfiberreinforcedsilicon-containingarylacetyleneresin(SCAR)compositeswerepreparedfromSCARandglassfibercloth. Theinfluenceoftheresincontent,moldingtemperatureandmolding pressureontheflexuralpropertiesofthecompositeswasinvestigated.Onthebasisofthedeterminedcuring process,theoptimum manufacturingconditionsfortheSCARcompositeswereobtainedasfollows:the moldingpressure1.0MPa,theresincontent31% wtandtemperatureprocedure170℃/2h+210℃/2h+250℃/4h.Theflexuralstrengthofthecompositereach278MPa.