What is the current development of wood plastic materials in China? I know to introduce it again, th

1. In foreign countries, after more than 10 years of research, development and industrial application, wood-plastic composites have formed a new industry. Wood plastic composite materials are made of wood powder, agricultural straw powder and other plant fibers and plastics as the main raw materials, processed by advanced technology, and the products can be reused. From the sensory point of view, wood plastic material has good wood feeling, moisture resistance, good colorability, heat insulation, anti-corrosion, mechanical properties are 10 times higher than simple wood materials, becoming an ideal substitute for natural wood.

In North America alone, the annual output is more than 400,000 tons, with an output value of 1.2 billion US dollars. Various industrially developed countries in Europe, Japan, Australia, etc., are also developing wood plastic and natural fiber composite products. Mainly from waste plastics and branch powder, agricultural straw powder and other plant fibers as raw materials, the products made are widely used in packaging, garden, transportation, construction, vehicle and ship interiors and other fields.

During the Ninth Five-Year Plan period, China began to develop new wood-plastic materials, and also put forward the long-term goal plan of "replacing wood with plastic, replacing steel with plastic, saving resources and protecting the environment" in 2010.

The application of wood-plastic composite materials was listed as a major industrial technology development project in 2004. PVC wood powder composites are developing rapidly, and are gradually replacing traditional wood products with their advantages of high toughness and low cost. However, due to the fact that PVC wood powder composite material is a composite of wood flour, its ductility and impact resistance are reduced, the material is brittle, and the density is nearly 2 times larger than that of traditional wood products, which limits its wide use. In order to eliminate these shortcomings, the addition of impact modifiers is usually used to improve the impact performance, but it is almost ineffective to improve ductility and reduce density.

In recent years, in China, the development of wood plastic has also had specific applications. The foamed PVC wood-plastic composites can passivate the crack tip and effectively prevent the crack expansion due to the good cell structure, and the surface treatment of the wood powder makes it well wetted by PVC resin to achieve the best bonding interface. This significantly improves the impact resistance and ductility of the material, and greatly reduces the density of the product.

With its advantages of low cost, high efficiency, short time consumption and easy industrialization, the extrusion micro-foaming method greatly improves the added value of PVC wood-plastic composites and becomes an ideal substitute for decoration materials in the 21st century.

2. Shanghai Jinwei and Shandong Tongjia Machinery are good.

Henan's emerging wood plastic is also good.

Not good, because nobody wants to buy your stuff, or development finance.

Analysis of the development status and market size of China's WPC composite industry in 2022 The enhancement of environmental awareness will promote the further growth of the market size

Major listed companies in the industry:Guofeng New Materials (000859); Nanjing Julong (300644) and so on.

China's WPC composite market size; The competition echelon of enterprises in China's wood plastic composite industry.

The development process of China's wood-plastic composite materials

In the mid-80s of the 20th century, Yang Qingxian of the University of Forestry took the lead in the research of wood-plastic composite materials in China, and carried out preliminary exploration and research on the composite of wood powder and waste plastics and developed several products. In the mid-to-late 90s of the 20th century, the industrialization research and development of China's wood-plastic composite materials really began, and China's wood-plastic composite materials entered the early stage of development. Subsequently, as the wood plastic composite material has become a national strategic emerging industry product, it has entered a period of rapid development.

Since 2010, China has successively issued policies such as "Green Building Action Plan" and "Circular Development Leading Action" to support the development of the wood-plastic composite industry, and China's wood-plastic composite industry has entered a period of stable development.

The scale of China's wood-plastic composite market has grown steadily

With the continuous enhancement of China's environmental protection awareness, coupled with the relative advantages of wood plastic composite materials over wood in economic benefits, the application of wood plastic composite materials in China has been expanding in recent years, and the market demand has continued to grow. According to the internationally renowned consulting agency Report

Linker and Intrado Globe Newswire estimate that the market size of China's wood plastic composite materials in 2021 will be about 900 million US dollars.

The competitive echelon of China's plastic wood composite enterprises has been formed

Combined with the ranking of China's WPC industry enterprises in recent years and the annual production capacity of China's WPC composite enterprises, it can be divided into three echelons. The first echelon enterprises are mainly Shandong Lvsen, Anhui Guofeng and other enterprises, with an annual production capacity of more than 20,000 tons; The second-echelon enterprises are mainly Muxindai, Lvke and other enterprises, with an annual production capacity of less than 10,000 tons; The third echelon enterprises include Jiajing, Dayang Plastics, etc. The specific competition echelon is as follows:

From the perspective of the production capacity of China's representative enterprises, Shandong Lvsen has formed an annual production scale of more than 20,000 tons of plastic wood products, covering more than 100 varieties of seven series, and the products are sold to more than 50 countries and regions around the world. The company has many trademarks such as "LVSENWOOD", "LVSEN", "GREENSEN" and "LVSENWEIDI". In addition, the company has as many as 30 independent intellectual property rights, utility model technology patents and invention patents.

Analysis of the pain points of the development of wood plastic composite materials in China

Combined with the development status of China's wood-plastic composite market, the research and development of China's wood-plastic composite materials is still in the initial stage, and it is difficult to form a scale effect. From the perspective of layout enterprises, the main products of plastic wood composite materials produced in China are all kinds of wallboards, paving, railings and other products, the added value is not high, the production capacity is limited, and the actual output of more than 10,000 tons of enterprises is less. The specific development pain points are as follows:

The prospect of wood-plastic composites is of course very good! Because of the huge pressure on the environment and resources, coupled with the defects of traditional wood products in terms of manufacturing costs and basic properties (such as formaldehyde hazards, flammability, corrosion, etc.), it is impossible for wood products to take on more important tasks for a long time, so it is imperative to find suitable and environmentally friendly alternative new materials. As an ideal new material for wood and wood plastic compounds, wood-plastic composites and stone-wood-plastic composites have many advantages such as anti-corrosion and moth-proof, waterproof and moisture-proof, wear-resistant and flame-retardant, energy-saving and environmental protection, recyclable, and strong mechanical properties, and are gradually replacing some products that cause pollution to the environment.

At present, all kinds of wood-plastic products have been widely used in Europe and the United States, forming a relatively standardized industry and market. At present, wood composite technology is not only a research hotspot in the wood industry, but also greatly promotes the development of the wood industry, and is the development direction of the wood industry.

If you want to know more about the new development of wood plastic composites, welcome to attend the 2023 China International Composites Industry Technology Exhibition, which will be held on September 12-14 at the Shanghai National Convention and Exhibition Center.

Disadvantages of WPC:

1. If the external ambient temperature changes greatly, then the uneven heating of the surface and the inside is easy to produce expansion and contraction deformation, etc., and the life of the wood-plastic floor will be shortened under the action of a long time, and some manufacturers will reduce the use of antioxidants and other related additives in order to save costs, or reduce the amount of wood fiber such as wood flour, which is prone to serious fading and brittle materials.

2. WPC flooring is a new type of environmentally friendly wood-plastic composite products, the wood phenol produced in the production process of medium and high-density fiberboard is added to the recycled plastic to be made into wood-plastic composite materials through granulation equipment, and then extruded into WPC flooring by the extrusion production group. At the same time, it has the wood texture of wood and the water resistance and anti-corrosion characteristics of plastic, making it a kind of outdoor waterproof and anti-corrosion building materials with excellent performance and very durability. Because WPC has both the water decay resistance of plastic and the texture of wood, it has become a kind of outdoor building materials with excellent performance and very durability (WPC flooring, WPC fence, WPC chairs and stools, gardens or waterfront landscapes, etc.); It can also be used to replace wooden components used in ports, docks, etc., and can also be used to replace wood to make various packaging, pallets, warehouse mats, etc., which are extremely versatile.

Advantages: 1. Waterproof and moisture-proof. It fundamentally solves the problem that wood products are easy to rot and expand and deform after absorbing water in humid and watery environments, and can be used in environments where traditional wood products cannot be applied.

2. Colorful, with many colors to choose from. It has a natural wood feel and wood texture, and you can customize the color you need according to your personality.

3. Prevent insects and termites, effectively eliminate insect harassment and prolong the service life.

4. Strong plasticity, can very simple to achieve personalized modeling, fully reflect the personality style.

5. High fire resistance. It can be effectively flame retardant, the fire rating reaches B1 level, and it is self-extinguishing in case of fire and does not produce any toxic gas.

6. High environmental protection, pollution-free, pollution-free and recyclable. The product does not contain benzene, and the formaldehyde content is lower than the EO standard, which is the European environmental protection standard, which can be recycled and greatly saves the amount of wood used, which is suitable for the national policy of sustainable development and benefits the society.

7. Good machinability, orderable, planing, sawing, drilling, and painting on the surface.

8. Good sound absorption effect and good energy saving, so that the indoor energy saving is as high as 30%.

9. No cracking, no expansion, no deformation, no need for repair and maintenance, easy to clean, saving later repair and maintenance costs.

10. The installation is simple, the construction is convenient, there is no need for complicated construction technology, and the installation time and cost are saved.

WPC is actually a mixture of wood chips and plastic, and its disadvantages are as follows: compared with wood, it is not resistant to high temperatures and softens when exposed to high temperatures. It cannot be disposed of after scrapping.

Because the plastic molecules that are in it can't be incinerated. After incineration, a large amount of toxic smoke will be produced. It is said that it is a wood-plastic door fire prevention.

In fact, it is not flammable. Think about it simply, wood and plastic combined, what is its ignition point? Speaking of its environmental performance.

Personally, I don't think there is a bit of an environmental impact. After using WPC products at home, once a fire breaks out. When wood is heated at high temperatures, toxins are released.

There is a big gap with real solid wood furniture. It has been tested to be as strong as solid wood furniture. Wood waste can be good**.

But WPC waste is difficult to dispose of.