Analysis of Corrosion and Cracking Behavior of Polycarbonate Parts Under Solvent Action
This paper investigates the issue of corrosion and cracking in PC parts of automotive instrument panel trim after exposure to perfume at high temperatures.Through experimental analysis,it was found that appropriate holding pressure and higher mold temperature can reduce the internal stress of PC injection-molded parts,thereby decreasing the risk of corrosion-induced cracking.Additionally,subjecting the PC material to a baking process of over 2 hours after injection molding can effectively reduce stress cracking in the parts,enhancing their stability and corrosion resistance.Furthermore,different solvents have varying effects on stress cracking in PC parts,with more polar solvents leading to more severe cracking.Heating exacerbates the cracking of PC parts.This study provides effective solutions to address the issue of corrosion and cracking in automotive instrument panel trim PC parts,which is of significant importance for improving the quality and durability of automotive interior components.
万方数据
维普
