Glass fiber reinforced PA10T/PPE composites compatibilized by styrene copolymer
Using molten caprolactam as solvent,a series of styrene-glycidyl methacrylate(GMA)copolymer(PSG)were prepared through free radical copolymerization.Then glass fiber(GF)reinforced poly(decamethylene terephthalamide)(PA10T)/poly(phenylene ether)(PPE)composites compatibilized by PSG were prepared by melt blending.The physical and chemical proper-ties of PSG compatibilizer and the influences of GMA content of PSG compatibilizer on the thermal properties,mechanical proper-ties,microstructure and morphology of GF/PA10T/PPE composites were investigated.The results indicate that the prepared PSG compatibilizer with 5%thermal weight loss temperature not less than 374℃meets the use requirements for the compatibilizers of GF/PA10T/PPE composite.The addition of PSG significantly improvs the compatibility between PA10T and PPE,refines the size of PPE domains,and enhances the interfacial bonds between GF and polymeric matrix.As PSG contained 4 mol%GMA reactive monomer,the compatibilized GF/PA10T/PPE composite exhibits the best mechanical properties.The corresponding tensile,flexur-al,and notched impact strength are 130.4 MPa,164.4 MPa,and 7.5 kJ/m2,respectively.Moreover,its saturated water absorption rate is as low as 1.32%.The developed composites with good comprehensive properties have potential applications in the fields of auto-mobiles,electrical appliances,and communication devices.
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