The following are some suggestions for reducing the energy consumption of WPC production by adjusting the formula:
Coupling agent can produce a strong interface bond between plastic and wood powder surface, and at the same time can reduce the water absorption of wood powder, improve the compatibility and dispersibility of wood powder and plastic, so the mechanical properties of composite materials are significantly improved. Commonly used coupling agents are: isocyanate, cumene peroxide, aluminate, phthalate, silane coupling agent, maleic anhydride modified polypropylene agent (MAN-g-PP), ethylene-acrylate (EAA). The general amount of coupling agent added is 1wt%~8wt% of the amount of wood powder added. For example, silane coupling agent can improve the adhesion between plastic and wood powder, improve the dispersibility of wood powder, and reduce water absorption, while alkaline treatment of wood powder can only improve the dispersibility of wood powder, but cannot improve the water absorption of wood powder and its adhesion to plastic. It should be noted that maleate coupling agent and stearate lubricant will repel each other, and when used together, the product quality and output will be reduced.
Wood-plastic composite materials often need to add lubricants to improve the fluidity of the melt and the surface quality of the extruded products. The lubricants used are divided into internal lubricants and external lubricants. The choice of internal lubricant is related to the matrix resin used. It must have good compatibility with the resin at high temperature and produce a certain plasticizing effect, reduce the cohesive energy between molecules in the resin, and weaken the mutual friction between molecules, so as to achieve the purpose of reducing the melt viscosity of the resin and improving the melt fluidity.
Adding an appropriate amount of antioxidant and ultraviolet absorber can improve its aging resistance and weather resistance, thereby improving the quality and life of wood-plastic products.
An appropriate amount of calcium carbonate can help adjust the fluidity of wood-plastic materials, and can also help the shaping of wood-plastic products, thereby increasing the production speed of wood-plastic products and reducing energy consumption.
According to the melting temperature and fluidity of the plastic used, reasonably adjusting the mixing ratio of wood powder can help increase the production speed of products and reduce energy consumption.
The energy consumption in the wood-plastic production process can be reduced to a certain extent by using appropriate additives. In practical applications, reasonable formula design and optimization are required according to specific production processes and product requirements.
Yongte is professional manufacturer for complete WPC production machines, we supply turn-key project service from A to Z, we will provide good formula to customer and help customer to improve the formula according to customer's raw material and production situation. we welcome customers visit our factory for checking our wpc machines.
