Compatibilizing mechanism and effect of silane grafted polypropylene on GMT-PP

For the balance between stiffness and toughness of polypropylene composites which filled by glass fiber mat, the compatibilizing mechanism and effect of silane grafted polypropylene on GMT-PP performed were studied. The results show that silane grafted polypropylene can improve the tensile and flexural properties of the composites with the mass content less than 20 % , while the Izod impact strength almost remains the same. The compatibilizing mechanism of silane grafted polypropylene for GMT-PP lies in hydrogen bond between silane grafted polypropylene and amino silane.