What are the differences in thermal resistance between PVC and polypropylene?
When comparing the thermal resistance of PVC (Polyvinyl Chloride) and polypropylene, several key differences emerge. PVC typically has a lower thermal resistance, with a maximum continuous service temperature around 60-80°C (140-176°F), while polypropylene can withstand higher temperatures, up to 100-120°C (212-248°F). This makes polypropylene more suitable for applications involving higher heat exposure, such as automotive parts or food containers. PVC, on the other hand, is often used in construction and piping where moderate temperatures are expected. Both materials have distinct thermal degradation points, with polypropylene showing better stability under prolonged heat. Understanding these differences helps in selecting the right material for specific thermal requirements.