Study on Enhancement Modification and Flame Retardancy of Polypropylene
Using polypropylene as the base material,short cut glass fiber as the reinforcing material,and ammonium polyphosphate as the flame retardant,a composite material was obtained through melt blending processing.The effects of different amounts of short cut glass fibers and ammonium polyphosphate on the mechanical and flame retardant of composite materials were investigated.The results showed that when the amount of short cut glass fiber was 14 parts by mass and the amount of ammonium polyphosphate was 20 parts by mass,the tensile strength of the composite material could reach 39.4 MPa,the bending modulus and bending strength could reach 3512 MPa and 52.7 MPa,the impact strength of the cantilever beam could reach 8.2 kJ·m-2,and the ultimate oxygen index of the composite material could reach 29 and the vertical combustion could reach the V-0 level,indicating that the composite material has good strength and flame retardancy.
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