Compound enhanced wood-plastic composite plate and preparation method thereof

Abstract

The invention discloses a compound enhanced wood-plastic composite plate and a preparation method thereof. The preparation method comprises the following steps of: diluting vinyltriethoxysilane with tap water; putting wood flour into the above water solution, evenly shaking, and ultrasonically processing with ultrasonic waves to obtain enhanced wood flour; stirring, extruding and pelleting the enhanced wood flour, plastic particles, plastic particles grafted by maleic anhydride, potassium titanate whisker, chopped glass fiber powder and oxidic polyethylene to obtain composite particles; and evenly stirring the composite particles, ethylhexyl stearate, terpene resin and an antioxidant again and then melting, blending and extruding via an extruder to obtain the wood-plastic composite plate. In the invention, the production process is convenient and the production cost is low. The compound enhanced wood-plastic composite plate has the advantages of small dosage of plastic, environmental protection, good ageing resistance and deformation resistance and good buckling deformation resistance; and compared with other wood-plastic composite plates, the mechanical properties such as the static bending intensity, the impact strength and the like are more excellent, the service life is longer, and the application range is wider. The compound enhanced wood-plastic composite plate cannot only be used for making floors, but also can be hung up.

Description

technical field [0001] The invention relates to a plastic-wood composite material, in particular to a composite reinforced plastic-wood composite material plate and a preparation method thereof. Background technique [0002] Wood-plastic composite materials use hot-melt plastics, including polyethylene, polypropylene, polystyrene, etc., and their copolymers as adhesives, and are filled with wood powder such as wood, agricultural plant straw, and agricultural plant shell powder. It is a composite material formed by extrusion, pressing or injection molding. The hot-melt plastic raw material can be industrial or domestic waste, and the wood powder can also be low-quality wood such as leftovers from wood processing and small-diameter wood. From the perspective of production raw materials, wood-plastic composite products slow down and avoid the pollution of plastic waste, and also avoid the pollution of the environment caused by the burning of agricultural plants. The product...

AI Technical Summary

Problems solved by technology

However, conventional wood-plastic composite materials have low mechanical properties such as static bending strength and impact strength, and are prone to warping and deformation during use. Especially when they are suspended in the air, they are more likely to bend, which affects their actual use. In severe cases, Even cause accidents, so it is very necessary to invent a plastic wood board with better mechanical properties, expand its application range, and ensure its service life