The development status of my country's plastic wood market

My country's plastic wood industry has been in a period of rapid development since 2005. After more than ten years of development, great progress has been made in terms of output, quality and technology. The scope of application has continued to expand, and product performance has continued to improve, some of which are already higher than the international level. . For example, the domestic product design is more realistic on the surface of wood products, the new multi-layer co-extrusion products are developing rapidly, and the cost performance ratio of the products is more advantageous. In 2018, the environmental protection tax was fully levied, forcing enterprises to focus on environmental protection and green development. Wood-plastic materials and products are typical green and low-carbon industries, and the development of the plastic-wood industry is fully in line with the national industrial policy orientation.

A large part of the production technology of WPC decking still exists in chemical research, because the raw material of this product is not one material, which is why many people like to use high technology now, because once a variety of materials are combined, they will There are various properties, which will greatly improve the life of the product during use. With the gradual depletion of global resources, the increasingly serious environmental pollution, and the increasingly serious impact on human life, people's awareness of environmental protection began to gradually strengthen. Under the general trend of environmental protection and low carbon, energy saving and emission reduction have become the primary criteria for people to choose. Compared with traditional solid wood, recyclable WPC is more in line with people's concept of environmental protection. WPC composite materials have been widely used in all walks of life, and WPC decking is one of the achievements.

In 2018, my country's wood-plastic composite material industry continued its previous rapid development trend, and the annual production, sales and export volume maintained a growth rate of 25% to 30%. Some old factories generally increase production capacity to meet customer demand. At the same time, a number of new factories opened.

As of the end of December 2018, there were nearly 620 plastic-wood production enterprises in my country, including about 200 PE-based outdoor plastic-wood composite material manufacturers, with a production capacity of about 2 million tons, of which 4 enterprises had an annual production capacity of more than 50,000 tons. There are about 55 enterprises with a production capacity of more than 20,000 tons, about 160 enterprises with an annual production capacity of more than 10,000 tons, and about 400 indoor plastic-wood composite material manufacturers with a production capacity of about 4.2 million tons.
Plastic wood production enterprises are mainly distributed in the eastern provinces, of which the Pearl River Delta, the Yangtze River Delta and Shandong Province are the most concentrated. The newly added production enterprises are mainly in the inland and western provinces, while the number of plastic wood production enterprises in the northern region is still relatively small.
Overall, the domestic market is growing steadily, with the eastern region maintaining a relatively stable growth rate, and the western region and Hainan growing relatively faster. From the perspective of product structure, different regions also have different characteristics. For example, Sichuan and Xinjiang prefer to use solid thick plates, Hainan mainly uses second-generation co-extrusion decking, and Yunnan accepts hollow round hole decking. Among them, the market share of the second-generation co-extrusion decking has gradually increased.

Development status of foreign plastic wood market

At present, the use of plastic-wood composite materials in North America has reached a considerable scale, and its application fields have also developed from relatively simple low-value-added products to relatively complex high-value-added products such as plastic-wood houses, buildings, and pipes. Due to the development of the market, the technology of wood-plastic composite materials is also becoming more and more mature, especially in the aspects of mixing, molding, temperature control, plastic-wood speed, cutting, formula and other aspects have been greatly innovated and improved. It is more suitable for the status quo of raw material sources, and effectively improves the strength and reduces the cost.
The European market is relatively stable, and the total volume has increased slightly compared with the previous years. The products are still dominated by the first generation of ordinary products, and the co-extruded plastic wood products have grown rapidly.
Some emerging markets are growing rapidly, such as Eastern Europe, Northern Europe, Southeast Asia, South America and Oceania, and Africa. Many domestic WPC companies are actively developing these emerging markets through exhibitions and other means, and have achieved good results.
The largest and most mature market for wood-plastic composite materials is in North America, but due to the high market entry barriers in the United States and Canada, local manufacturers are higher than domestic manufacturers in terms of scale and brand. When domestic plastic-wood products are shipped to these markets, there is no advantage in terms of cost and delivery time. It is difficult to develop these markets. However, there are still a few powerful leading enterprises in China who are working hard to develop them and have achieved certain results.

Wood-plastic composite material production technology

my country's wood-plastic composite material industry is an emerging industry that spans multiple fields. It has high technological content and distinct industrial characteristics. It is now a self-contained body in the field of new materials. Since it does not depend on non-renewable resources, it is mainly made of raw materials that can be recycled in large quantities. In recent years, the development speed has increased rapidly, and the production technology has made great progress.
Co-extrusion technology begins to develop
Single-material extrusion molding is still the mainstream molding and processing method for plastic-wood composite products, which is used to manufacture plates, profiles and pipes. In recent years, we have studied foreign experience and developed a co-extrusion process on the basis of single-material extrusion. There are two main types of co-extrusion products: one is to improve the surface strength of the product, enhance the wear resistance, and the ability to resist ultraviolet rays. , co-extrude a layer of functional material on the surface of the plastic-wood product, which is the surface co-extrusion technology of the plastic-wood profile; the other is to strengthen the overall strength of the plastic-wood product, using profiled steel or aluminum profiles, bamboo boards, etc. as the core material , a co-extrusion technology that coats a layer of plastic-wood composite material on its surface.
Plastic-wood co-extrusion products not only improve the performance of the products, but also expand the application fields and product categories, and promote the diversification of plastic-wood products. The plastic-wood extrusion molding technology has a new development. This technology is currently in the initial stage of development in China. Some enterprise products have been sold abroad, forming an important development direction of the plastic-wood industry.
Micro-foaming technology continues to improve
Although plastic-wood composites have many advantages, the high density is its biggest disadvantage, which limits its application range. In order to reduce the density of the plastic-wood composite material without reducing the physical and mechanical properties of the composite material, the requirements of light weight and high strength are put forward for the plastic-wood composite material.
In recent years, WPC micro-foaming technology has also made great progress, especially for PVC-based production enterprises, in order to meet the product performance requirements, it is necessary to develop new processing technologies, introduce foaming technology, reduce material costs, and expand the use of WPC. range of use.
After foaming, the plastic-wood composite material not only reduces the density, but also improves some physical and mechanical properties, so that it can be used as the light-weight and high-strength components required by the automotive industry, sports equipment, packaging, and construction industries. Wait.
Molding technology tends to be differentiated
The start of my country's plastic-wood composite materials is the extrusion molding process. After years of development, product homogeneity has been formed, resulting in fierce price competition and affecting the healthy development of the industry. In fact, wood-plastic composites can be understood as modified plastics with biomass fibers as modifiers, so other plastic molding methods can be used. Different molding processes can be used to manufacture different types of products, such as injection molding. It can produce various three-dimensional shape products such as vehicle parts, toys and daily necessities. At present, some domestic enterprises have begun to develop towards the differentiation of WPC products.
Application of Surface Modification Technology
In order to improve the usability and surface aesthetics of plastic-wood composite products, post-treatment on the surface of plastic-wood products is also indispensable. At present, the surface post-treatment technologies mainly include: belt sanding treatment, embossing treatment, water transfer printing and thermal transfer printing, UV printing and solid wood veneer composite. These technologies have been successfully applied to the post-treatment of the surface of the plastic-wood composite material, which greatly improves its aesthetics and added value.

Wood-plastic composite material production technology

My country's wood-plastic composite material industry is an emerging industry that spans multiple fields. It has high technological content and distinct industrial characteristics. It is now a self-contained body in the field of new materials. Since it does not depend on non-renewable resources, it is mainly made of raw materials that can be recycled in large quantities. In recent years, the development speed has increased rapidly, and the production technology has made great progress.
Co-extrusion technology begins to develop
Single-material extrusion molding is still the mainstream molding and processing method for plastic-wood composite products, which is used to manufacture plates, profiles and pipes. In recent years, we have studied foreign experience and developed a co-extrusion process on the basis of single-material extrusion. There are two main types of co-extrusion products: one is to improve the surface strength of the product, enhance the wear resistance, and the ability to resist ultraviolet rays. , co-extrude a layer of functional material on the surface of the plastic-wood product, which is the surface co-extrusion technology of the plastic-wood profile; the other is to strengthen the overall strength of the plastic-wood product, using profiled steel or aluminum profiles, bamboo boards, etc. as the core material , a co-extrusion technology that coats a layer of plastic-wood composite material on its surface.
Plastic-wood co-extrusion products not only improve the performance of the products, but also expand the application fields and product categories, and promote the diversification of plastic-wood products. The plastic-wood extrusion molding technology has a new development. This technology is currently in the initial stage of development in China. Some enterprise products have been sold abroad, forming an important development direction of the plastic-wood industry.
Micro-foaming technology continues to improve
Although plastic-wood composites have many advantages, the high density is its biggest disadvantage, which limits its application range. In order to reduce the density of the plastic-wood composite material without reducing the physical and mechanical properties of the composite material, the requirements of light weight and high strength are put forward for the plastic-wood composite material.
In recent years, WPC micro-foaming technology has also made great progress, especially for PVC-based production enterprises, in order to meet the product performance requirements, it is necessary to develop new processing technologies, introduce foaming technology, reduce material costs, and expand the use of WPC. range of use.
After foaming, the plastic-wood composite material not only reduces the density, but also improves some physical and mechanical properties, so that it can be used as the light-weight and high-strength components required by the automotive industry, sports equipment, packaging, and construction industries. Wait.
Molding technology tends to be differentiated
The start of my country's plastic-wood composite materials is the extrusion molding process. After years of development, product homogeneity has been formed, resulting in fierce price competition and affecting the healthy development of the industry. In fact, wood-plastic composites can be understood as modified plastics with biomass fibers as modifiers, so other plastic molding methods can be used. Different molding processes can be used to manufacture different types of products, such as injection molding. It can produce various three-dimensional shape products such as vehicle parts, toys and daily necessities. At present, some domestic enterprises have begun to develop towards the differentiation of WPC products.
Application of Surface Modification Technology
In order to improve the usability and surface aesthetics of plastic-wood composite products, post-treatment on the surface of plastic-wood products is also indispensable. At present, the surface post-treatment technologies mainly include: belt sanding treatment, embossing treatment, water transfer printing and thermal transfer printing, UV printing and solid wood veneer composite. These technologies have been successfully applied to the post-treatment of the surface of the plastic-wood composite material, which greatly improves its aesthetics and added value.

The development trend of plastic wood industry

From the pallets, packaging boxes, automotive interior parts and other products at the beginning of development, through the development and application of outdoor decking, fences, tables and chairs, etc., plastic-wood composite materials have begun to penetrate into a wider field of building structures, striving to achieve house structure. Mechanical performance requirements and external decorative effects of products such as parts, including door and window products, decorative panels, furniture panels and building foundations.
Correspondingly, higher requirements are also put forward for material properties, such as: for outdoor products of garden management, anti-aging, anti-discoloration, and long service life; good flame retardant properties for indoor doors, windows and decorative materials; for housing foundations Piece-bearing products have high mechanical properties, and need to be reinforced and modified for creep resistance.
With the improvement of energy-saving requirements, the construction industry has also put forward higher requirements for the energy-saving effect of plastic-wood composite products. Therefore, wood-plastic composites are developing towards functionalization and high added value to adapt to a wide range of applications, such as flame-retardant, reinforced, anti-aging, creep-resistant, thermal insulation and energy storage adjustment. Warm type, etc. will become the direction pursued by the industry.
Wood-plastic composite materials have become a class of promising materials due to their advantages of material saving, environmental protection, and recyclability. my country's vigorous development of plastic-wood composite materials is not only in line with the needs of the development of the national economic situation, but also in line with the country's industry Policies and requirements for energy conservation, environmental protection, and low-carbon economy.
According to the guidance of the national circular economy and industrial development policy, under the pursuit of various investors, the new biomass plastic wood material with the two advantages of resource conservation and environmental protection will definitely have greater development in the next few years. According to the current industrial development trend and market capacity forecast, if China's wood-plastic composite material industry can make breakthroughs in technology and quality, the total output of wood-plastic composite materials is expected to exceed 4.6 million tons by 2020, with an output value of about 40 billion yuan. The average annual growth rate is 25%.
In the future, to solve the existing problems, it is necessary to open up new markets and develop world-leading new products while ensuring the growth of production capacity Product diversification and serialization; further promote the combination of production, learning and research, and establish a scientific and technological innovation mechanism.
The development prospects of the plastic wood industry are not only optimistic in China, but also in the whole world. This is not only because of the excellent characteristics of the product itself, but more importantly, it is determined by the significance of its resource recycling and its important contribution to environmental protection. As an ideal environmentally friendly material, wood-plastic composite material has low cost, and can be reused and recycled. It is gradually replacing some products that cause pollution to the environment.