What are the differences in thermal expansion coefficients for WPC vs. resin?

Thermal expansion coefficients are critical properties that determine how materials respond to temperature changes. When comparing Wood Plastic Composite (WPC) and resin, significant differences emerge. WPC, a blend of wood fibers and thermoplastics, typically exhibits a lower thermal expansion coefficient compared to pure resin. This is due to the stabilizing effect of the wood fibers, which reduce the material's tendency to expand under heat. Resin, on the other hand, being a polymer, generally has a higher thermal expansion coefficient, making it more susceptible to dimensional changes with temperature fluctuations. These differences are crucial in applications where dimensional stability is essential, such as in construction, automotive, and outdoor furniture. Understanding these properties helps in selecting the right material for specific environmental conditions and performance requirements.