PP raw material for making PP melt blown filter cartridge The specification of this pp raw material is a,melts flow rate(g/10min): 26.0b,tensile yield strength(MPa) 31.0c,IZOD impact strength(23°C)J/m 15.0d,flexural modulus(GPa) 1.3e,types of polymers copolymerizationf,process method extrudeg,main applications thin and short fiber