The wide application of plastic wood in green buildings is a trend in the recycling of waste wood fibers and waste plastics. It embodies the concept of advocating “circular economy” and building a “conservation-oriented society” in my country. Its development and application help to reduce the “white pollution” of plastics, which is not only conducive to the protection of forest resources, but also to the comprehensive utilization of waste and environmental protection. It is of great significance to relieve the increasingly tense pressure of wood. The application of plastic wood in green buildings, including building templates, floors, wall panels and furniture, has certain practical significance for promoting the application of plastic wood in green buildings.

WPC building formwork

Wood-plastic building formwork can alleviate the shortage of resources such as wood and steel, and is in line with the sustainable development strategy; wood-plastic building formwork has high strength and good dimensional stability, and can maintain a smooth surface after repeated use; wood-plastic building formwork has good processing performance, It is easy to fix; the most important thing is that the number of recycled plastic-wood building templates is high, up to 20-30 times, the cost is greatly reduced, and the discarded plastic-wood building templates can be recycled, which is a new type of environmentally friendly building templates . Although wood-plastic building formwork has many advantages, it is not perfect enough. In order to meet the needs of the industry, it is necessary to further improve the stiffness, strength, toughness and optimize the structure of wood-plastic building formwork. Studies have shown that adding SiO2, calcium carbonate, etc. can significantly improve the rigidity of plastic wood. In the process of preparing wood-plastic building templates, tougheners are usually added to improve the toughness of plastic-wood. Fiber filling not only improves the rigidity of WPC, but also improves the toughness. There is also research on adding rice husks to prepare WPC building templates. Since the shell structure has better overall performance than other structures, the shell structure is usually used to prepare plastic-wood building templates.

WPC floor

Plastic-wood flooring has both the performance and characteristics of wood and plastic. It is a new environmentally friendly high-tech material that replaces wood and plastic. It is widely used in green buildings. The national standard GB/T24508-2009 “Wood Plastic Flooring” defines plastic wood flooring: it is a floor made of fiber materials such as wood and thermoplastics that are made of processing units, mixed in a certain proportion, and then processed. The research and production of plastic wood flooring in foreign countries is earlier, but due to the limitation of production process and production technology, it has not been well promoted. At present, my country’s innovative research on plastic wood flooring mainly focuses on functional design such as flame retardancy, aging resistance, quietness, wear resistance, lightweight, waterproof, antistatic and removable, as well as surface relief, double-sided texture, and paint layer. And surface decoration such as solid wood layer on the surface. With the development of economy and society, people have higher and higher requirements for floor textures, and many plastic wood floorings with imitation precious wood color design textures and other colorful textures have appeared one after another, which promotes the development and application of plastic wood flooring. Although the research and application of plastic wood flooring in my country is still in its infancy, due to the strong support of the country and localities, the development prospect is very broad.

WPC wall panel

Plastic-wood wall panels are another kind of plastic-wood products widely used in green buildings. After plastic-wood replaces wood, it can not only improve the durability of housing construction, but also make housing construction easy to maintain and repair. At the same time, plastic-wood is also more durable than wood. It shows more artistic value and aesthetic value, and significantly improves the use value of house construction. Therefore, plastic wood is widely used as wall panel material in foreign buildings. In recent years, plastic-wood wall panels have achieved unprecedented development in my country, and the usage has been increasing geometrically year by year, occupying most of the market share of plastic-wood market. As my country proposes to vigorously develop low-carbon economy and green building requirements, it is imminent to research and develop functional plastic-wood wall panels such as flame-retardant, fire-proof, thermal insulation, and formaldehyde-free. A preparation method of a fireproof, formaldehyde-free plastic-wood wallboard, mainly adding polyvinyl chloride (PVC), plant powder, calcium carbonate powder, polyaniline, adhesive, potassium ethylbenzoate, methacrylic acid ester adhesive Mixtures and other raw materials are prepared. As a green building material, plastic-wood wall panels have been applied relatively late, but they have gradually developed with the progress of society. It is expected that plastic-wood wall panels will become the new favorite of green building wall panel decoration materials in the future.

WPC furniture

In recent years, the development of wood-plastic furniture is mainly carried out around the aspects of shape design, appearance color and overall structure. Performance improvements. The surface properties of wood-plastic furniture include light texture, color, texture, gloss, touch, etc. Studies have shown that by using silicone and acrylic polyurethane coatings to finish the surface of plastic wood, veneering wood plastic composite materials with veneer, and developing wood plastic imitation of precious wood textures, plastic wood with natural texture and texture of solid wood can be obtained, thereby improving plastic wood. Feasibility of the application of wood in the field of green building furniture. Because people are in close contact with furniture, plastic wood furniture is required to have antibacterial properties. Methods to improve the antibacterial function of plastic wood include grafting polymer monomers with antibacterial functions on the surface of plastic wood, and adding antibacterial agents when preparing wood plastic. Plastic wood is made of wood materials and plastics as the main raw materials. It is a flammable material, and the smoke generated during combustion is an important cause of casualties. Therefore, it is necessary to carry out flame retardant and smoke suppression functional treatment on plastic wood. According to literature reports, ammonium polyphosphate, intumescent flame retardants, aluminum hypophosphite and other flame retardants can achieve good flame retardant and smoke suppression functions of plastic wood. Although the application of plastic wood in the field of green building furniture has just started, the development trend is very rapid. With the rapid development of social economy, the development of multifunctional plastic wood furniture has become an inevitable trend.

With the rapid development of science and technology, the use of abundant natural plant fibers to reinforce plastics is an important research direction for the continuous growth of polymer matrix composites. The national new material industry “Thirteenth Five-Year” development plan pointed out that advanced polymer materials and high-performance resin-based composite materials have become one of the key support directions. As a new type of composite material with low-carbon, green, environmental protection, sustainable development and other friendly characteristics, plastic wood has attracted much attention. In the future, WPC technology should be combined with modern high-tech such as nanotechnology and biotechnology. With the help of the development of the Internet age, it will be multi-functional (that is, flame-retardant, antibacterial, sound-absorbing, etc.), lightweight, environmentally friendly, and customizable. With the development in the direction of the system, plastic wood will become a material with great application prospects, which will greatly promote the industry upgrading in the field of green buildings.

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