Triisopropyl phenyl phosphate(IPPP-50 and IPPP-95)and tris(2-chloroethyl)phosphate(TCEP)were added to natural rubber(NR)/butadiene rubber(BR)composite to prepare the composites.The effects of three kinds of flame retardant plasticizers on the compatibility,vulcanization properties,physical properties,mechanical properties,flame resistance and wear resistance of the NR/BR composites were studied.Results showed that IPPP-95 had the best compatibility with the composites,followed by IPPP-50,and TCEP had the worst compatibility with the composites.Flame retardant plasticizers can reduce the viscosity of the rubber compounds and shorten the vulcanization time.The effects of flame retardant plasticizers on NR/BR composites of tensile strength were not obvious.Flame retardant plasticizers reduced the hardness of the composite material without negative effect on the flame resistance.The wear resistance of the composites with 15 phr IPPP-95 was close to the blank sample and the Shore A hardness was decreased to 13％.All in all,IPPP-95 can decrease the hardness without changing wear resistance and without negative effect on the flame resistance.It is the best flame retardant plasticizers for the preparation of low hardness flame resistance high wear NR/BR composites.
维普
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