Traditional wood products are perishable, not durable, easy to breed bacteria, not acid and alkali, non-flammable and other shortcomings. New PVC wood-plastic composite materials, not only make up for the lack of traditional wood products, and 100% recyclable, is expected to have a big market. Wood-plastic composites are made of wood fiber or plant fiber, reinforced modified thermoplastic materials, both wood and plastic cost and performance advantages, by extrusion or compression molding for the profile, sheet or other products, alternative wood and plastic The Wood fiber plastic compound research has been 80 years of history, but has been unable to industrialization, about 15 years ago, a small amount for low-value sound-absorbing products.
As a result of the strengthening of environmental protection concepts, the US construction industry began to find alternative materials like wood (no corrosion, no warping, easy maintenance, appearance and wood similar), and South Korea and Japan paper, wood processing plant for seeking saw powder , Waste wood chips and other applications. These have promoted and accelerated the research and application of wood-plastic composites. The use of wood powder filled with mixed processing into the construction and structural profiles is currently out of the industry one of the most active areas, new development and application is also endless. Many countries put power to accelerate the development and application of the pace, especially the production of profiles, is known as a "hot" market.
Wood fiber has waste wood powder, shavings, sawdust, plant fiber for the crushed rice rod, peanut shell, coconut shell, sugar cane, linen, hemp, hemp, marijuana and so on. Wood fiber and plant fiber source is rich, inexpensive, light weight, small equipment wear, good dimensional stability, excellent electrical insulation, non-toxic, can be repeated processing, biodegradable. Thermoplastics are mainly PE, PP, PS and other polyolefins and polyvinyl chloride, including new materials, recycled materials and a mixture of the two. Wood fiber and plant fiber are initially used as a low cost, plastic rigidity to improve the filling material. Wood-plastic composite plastic can make full use of resources, and can be recycled.