WPC Composite Material

In order to improve the utilization rate of waste wood and waste plastic, wood fiber and polymer are made into a composite material combining the advantages of the two. Wood-plastic composite ASTM is defined as: a composite material mainly made of wood or cellulose and plastic.

Due to the presence of a large number of hydroxyl groups in wood fiber, it exhibits strong polarity. In order to improve the compatibility with non-polar plastics, the performance of the material is significantly improved. The current research direction mainly focuses on the following two aspects: modification of the polymer matrix to increase its polarity and reduce the interface activation energy with wood fibers; pretreatment of wood fibers to reduce the surface polarity.

The reactive compatibilizer can play a chemical reaction with the components of the composite system, can improve the mutual solubility of the components to obtain a macroscopically uniform composite product, improve the interaction force of the interface of the polymer system, and increase the adhesion between the polymers To ensure that the mixed system has long-term stable performance.