Artificial and Natural Aging of Polypropylene Used in Passenger Vehicle Bumpers

Polypropylene (PP) has a wide range of applications in the automobile bumpers due to its many excellent properties. Mechanical properties PP for are investigated through an artificial accelerated aging test. The rules after different years normal use and test analyzed. correlation between natural artificially is also explored. It provides reference study polymers automotive applications. Results show that UV can effectively simulate changes tensile bending strengths be used evaluate weathering resistance materials bumpers. these remain good during aging, elongation sensitive aging. short-term does not exert significant influence on impact strength materials, completely reproduce process material.