Wood-plastic, that is, wood-plastic composite material is a new type of composite material that has flourished at home and abroad in recent years. It refers to the replacement of commonly used resin adhesives with polyethylene, polypropylene, polyvinyl chloride, etc. Wood flour, rice husks, straws, and other waste plant fibers are mixed into new wood materials, and then plastic sheets or profiles are produced through extrusion, molding, injection molding, and other plastic processing processes. It is the combination of wood board material and PVC Panel material, referred to as wood-plastic.
At present, it is mainly used in building materials, furniture, logistics packaging, and other industries. The plastic and wood powder are mixed in a certain proportion, and then hot extruded to form a board, which is called an extruded wood-plastic composite board.
Advantages of PVC wood plastic:
1) PVC wood-plastic products can be made of new materials or waste materials (while PE is made of new materials, the cost is too high, and the products cannot enter the sales market), and modified materials are also easy to fill. It depends on the quality of the product;
2) PVC can be made into low-polyurethane foamed wood-plastic products, with low cost, suitable for co-extrusion (three-material multi-material co-extrusion or steel-plastic pipe co-extrusion), with very good compressive strength and wood grain feel;
3) PVC can be processed for secondary production, various surface patterns or paints including UV paint, the products are beautiful, and the colorfastness to washing is good;
4) The waterproof and anti-corrosion properties of PVC wood-plastic products are also very high.
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