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Wood Plastic Composite Material: Environmental Friendly Material Which is Widely Used

Wednesday, December 01, 2021

Wood-plastic composite material is made of waste plastics and wood powder (such as wood chips, bamboo powder, rice husks, straw stalks, etc.), mixed in a certain proportion and added with special additives. A new type of composite material is made by high temperature, extrusion, and molding. It has good performance, the wide application is good for environmental protection, broad development prospects, and is worthy of vigorous research and promotion.

Wood-plastic materials used in the packaging industry are mainly pallets, packing boxes, containers, etc. Just take the tray as an example, for now. Pallet usage in North America reaches more than 200 million per year; Japan USES about 6 million pallets a year. It is predicted that the annual average usage of wooden pallets in our country in the next few years may break through 20 million. Therefore, there is a great demand in the domestic market.

Wood-plastic materials with moisture resistance, mothproofing, and other characteristics, suitable for storage industry used shelf board, sleeper, beam, floor, etc. The application of WPC in China’s storage industry has just begun. But demand is growing fast.

The pavilion, seat, flowerpot, and trash can made of wood-plastic materials are waterproof, moistureproof, and anticorrosive. Long life and low price; Wood – plastic composite materials used in the production of houses, outdoor floors, sunshine rooms, docks, guardrails, and other products have begun in foreign countries.

In addition.The application of WPC composite materials to develop automotive interior, composite pipes, railway sleepers, cable protection pipes, manhole covers, and other products. It is also stepping into the application testing stage from the demonstration stage. It is believed that in the near future, the application field of wood-plastic products will be further expanded.

Development of composite materials

With the continuous development of wood-plastic material technology. Its development trend may break through in the following aspects.

(1) the selection of raw materials for a wide range of development. After cleaning the reclaimed single-component waste all plastics (PE, PP, PVC, ABS, etc.).Wood-plastic products can be processed by adding specific modifiers.

(2) development of special equipment. The processing method develops from single screw extrusion to other traditional plastics processing directions. From water-cooled molding to air-cooled molding, from single extruded profile to composite co-extrusion, parcel co-extrusion direction.

(3) Innovate the processing technology. Foaming technology was introduced. From high foaming to low foaming, micro foaming direction.

(4) Products from the low added value (such as wood-plastic pallet, storage floor) to the high-grade direction (such as interior decoration materials) development, further improve efficiency.

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