The temperature resistance of PVC hose depends on its type and purpose. The temperature resistance range of ordinary PVC hose is usually between -10℃ and 60℃. Within this range, PVC hose can maintain its good elasticity and mechanical properties and is not easy to deform or break. This is because the interaction force between PVC molecular chains remains stable within this temperature range. The material maintains its inherent physical and chemical properties.
However, when the temperature exceeds this range, the performance of PVC hose will change significantly. In a high temperature environment, especially when the temperature reaches about 80℃, PVC hose begins to soften gradually and loses its original elasticity and mechanical strength. This is because high temperature will weaken the interaction force between PVC molecular chains. The material becomes softer and more deformable. When the temperature is further increased to 100℃ or higher, PVC hose may show obvious softening and deformation. Even melting occurs.
Low temperature will also affect the performance of PVC hose
When the temperature is below -10℃, PVC hose may become brittle, hard, and fragile. This is because low temperature will restrict the movement of PVC molecular chains, making the material more brittle.