With the strengthening of people’s awareness of environmental protection, calls for the protection of forest resources and the reduction of the use of new wood have become increasingly rampant. Waste wood and plastics with low recycling costs have become a common concern in the industrial and scientific communities, and have promoted and promoted wood-plastic composites. The research and development work on materials (WPC) has made substantial progress, and its application has also accelerated development.
As we all know, waste wood and agricultural fibers can only be incinerated before, and the carbon dioxide produced has a greenhouse effect on the earth. Therefore, wood processing plants are trying to find ways to convert them into high-value-added new products. At the same time, the recycling of plastics is also a key development direction of the plastics industry. The ability to recycle plastics has become an important basis for many plastics processing industries. Under such circumstances, wood-plastic composite materials came into being. Governments and relevant departments of all countries paid great attention to and paid attention to the development and application of such environmentally friendly new materials.
Wood-plastic composite material combines the advantages of wood and plastic, not only has the appearance of natural wood, but also overcomes its shortcomings, has the advantages of corrosion resistance, moisture resistance, insect-proof, high dimensional stability, no cracking, no warping, etc. Higher hardness than pure plastic, similar to the processing of wood, can be cut, bonded, fixed with nails or bolts, can be painted. It is through the dual advantages of cost and performance that wood-plastic composite materials have been continuously expanding their application fields, entering new markets, and increasingly replacing other traditional materials.
North America is the largest region in the world currently in the wood-plastic composites market, among which the United States is at the forefront in terms of development and application. The special report of the US Pricipia Partner Consulting Co., Ltd. “Wood-plastic Composites Used as Building Panels in 2001--Vivacious “Outdoor Building Applications†pointed out that in 2001, the North American market alone used 320,000 tons, and it is expected that demand will increase at double-digit rates by 2005, and that in 2005 it will increase to double that in 2001. Among them, the demand for plates is very large, accounting for more than 60% of the total demand.
Wood-plastic composite materials are mainly used in wall panels, wall panels, decorative panels, building templates, noise barriers for highways, roadside boards, railway sleepers, packaging trays, logistics, and storage racks, as well as decorative frames and fences. , stair rails, ship cockpit baffles, office partitions, outdoor open tables and benches, storage boxes, flower boxes, mobile racks, automotive interiors (door trim, floor, spare wheel covers, seat backs, Dashboards, glove boxes, shading panels, headrest inserts, etc.), and materials under development include lap panels, shutters, roof panels, etc.
Residential and commercial building boards are the largest users of wood-plastic composite materials and are on the rise. Therefore, wood-plastic composite materials processing buildings and structural sheets (including profiled materials) are also the most active part of the plastic extrusion industry. The demand growth rate is two. The number of sheets, other industrial/agricultural and beach boards, dock station plywood and other facilities are relatively stable. Because wood boards are not resistant to seawater corrosion, easy to crack and warp, and have a short life span, products made of wood-plastic composite materials have obvious advantages. The US Navy spends 250 million U.S. dollars on maintenance and replacement of wood boards each year, so it started a five-year period. In the year, a total of US$10 million worth of wood-plastic composite wood substitute development projects were undertaken by Washington State University. In addition, in the study, it was also found that the performance of the WPC composite roofing for construction exceeds that of wood, and the cost is 85%-95% of the wood raw material.
The use of wood-plastic composite materials to manufacture railroad sleepers is currently a fast-rising application field, although it is not used in large quantities. Its market share has increased from less than 1% in 1998 to 2%-4% in 2000, and more recently. There is momentum to challenge traditional wooden sleepers. Traditional sleepers should be treated with high-quality wood creosote, which not only has a short life span (5-10 years), pollutes the environment, but also has a high cost, while the plastic sleepers have a shelf life of up to 50 years. Therefore, the US Department of Transportation in Chicago estimates that the share of plastic sleepers in its sleepers will increase to 25%-30% within 10 years. This new sleeper is being installed in large quantities in the United States for a large number of transport systems and major transport lines. North America currently replaces 12 million sleepers each year, and will further increase to 140-16,000 roots/year in the next 2-5 years. Plastic sleepers can use the same tightness of wooden sleepers and can also be used in combination with wooden sleepers, which is easy to promote and cost-effective. More than 50% of raw materials for plastic sleepers are recyclable HDPE.
The well-known US consulting company Freedonia Group expects that the average annual growth rate of the demand for wood-plastic composite materials in the United States before 2006 will be 13%, and the total output value in 2006 will reach US$2 billion. The rapidly-growing market will be various plates, window frames, door frames and Fence, wall market. The plate market with the largest amount of usage increased from 410 million U.S. dollars in 2001 to 900 million U.S. dollars in 2006. By continuously improving the performance and public awareness of the advantages and disadvantages of high-pressure treatment of wood, fences and fences increased from 163 million U.S. dollars to 315 million U.S. dollars during the same period. The window frames and door frames will also increase from only US$65 million in 2001 to US$135 million in 2006.
As we all know, waste wood and agricultural fibers can only be incinerated before, and the carbon dioxide produced has a greenhouse effect on the earth. Therefore, wood processing plants are trying to find ways to convert them into high-value-added new products. At the same time, the recycling of plastics is also a key development direction of the plastics industry. The ability to recycle plastics has become an important basis for many plastics processing industries. Under such circumstances, wood-plastic composite materials came into being. Governments and relevant departments of all countries paid great attention to and paid attention to the development and application of such environmentally friendly new materials.
Wood-plastic composite material combines the advantages of wood and plastic, not only has the appearance of natural wood, but also overcomes its shortcomings, has the advantages of corrosion resistance, moisture resistance, insect-proof, high dimensional stability, no cracking, no warping, etc. Higher hardness than pure plastic, similar to the processing of wood, can be cut, bonded, fixed with nails or bolts, can be painted. It is through the dual advantages of cost and performance that wood-plastic composite materials have been continuously expanding their application fields, entering new markets, and increasingly replacing other traditional materials.
North America is the largest region in the world currently in the wood-plastic composites market, among which the United States is at the forefront in terms of development and application. The special report of the US Pricipia Partner Consulting Co., Ltd. “Wood-plastic Composites Used as Building Panels in 2001--Vivacious “Outdoor Building Applications†pointed out that in 2001, the North American market alone used 320,000 tons, and it is expected that demand will increase at double-digit rates by 2005, and that in 2005 it will increase to double that in 2001. Among them, the demand for plates is very large, accounting for more than 60% of the total demand.
Wood-plastic composite materials are mainly used in wall panels, wall panels, decorative panels, building templates, noise barriers for highways, roadside boards, railway sleepers, packaging trays, logistics, and storage racks, as well as decorative frames and fences. , stair rails, ship cockpit baffles, office partitions, outdoor open tables and benches, storage boxes, flower boxes, mobile racks, automotive interiors (door trim, floor, spare wheel covers, seat backs, Dashboards, glove boxes, shading panels, headrest inserts, etc.), and materials under development include lap panels, shutters, roof panels, etc.
Residential and commercial building boards are the largest users of wood-plastic composite materials and are on the rise. Therefore, wood-plastic composite materials processing buildings and structural sheets (including profiled materials) are also the most active part of the plastic extrusion industry. The demand growth rate is two. The number of sheets, other industrial/agricultural and beach boards, dock station plywood and other facilities are relatively stable. Because wood boards are not resistant to seawater corrosion, easy to crack and warp, and have a short life span, products made of wood-plastic composite materials have obvious advantages. The US Navy spends 250 million U.S. dollars on maintenance and replacement of wood boards each year, so it started a five-year period. In the year, a total of US$10 million worth of wood-plastic composite wood substitute development projects were undertaken by Washington State University. In addition, in the study, it was also found that the performance of the WPC composite roofing for construction exceeds that of wood, and the cost is 85%-95% of the wood raw material.
The use of wood-plastic composite materials to manufacture railroad sleepers is currently a fast-rising application field, although it is not used in large quantities. Its market share has increased from less than 1% in 1998 to 2%-4% in 2000, and more recently. There is momentum to challenge traditional wooden sleepers. Traditional sleepers should be treated with high-quality wood creosote, which not only has a short life span (5-10 years), pollutes the environment, but also has a high cost, while the plastic sleepers have a shelf life of up to 50 years. Therefore, the US Department of Transportation in Chicago estimates that the share of plastic sleepers in its sleepers will increase to 25%-30% within 10 years. This new sleeper is being installed in large quantities in the United States for a large number of transport systems and major transport lines. North America currently replaces 12 million sleepers each year, and will further increase to 140-16,000 roots/year in the next 2-5 years. Plastic sleepers can use the same tightness of wooden sleepers and can also be used in combination with wooden sleepers, which is easy to promote and cost-effective. More than 50% of raw materials for plastic sleepers are recyclable HDPE.
The well-known US consulting company Freedonia Group expects that the average annual growth rate of the demand for wood-plastic composite materials in the United States before 2006 will be 13%, and the total output value in 2006 will reach US$2 billion. The rapidly-growing market will be various plates, window frames, door frames and Fence, wall market. The plate market with the largest amount of usage increased from 410 million U.S. dollars in 2001 to 900 million U.S. dollars in 2006. By continuously improving the performance and public awareness of the advantages and disadvantages of high-pressure treatment of wood, fences and fences increased from 163 million U.S. dollars to 315 million U.S. dollars during the same period. The window frames and door frames will also increase from only US$65 million in 2001 to US$135 million in 2006.