WPC products application

Wood plastic composite is based on high density polyethylene and wood fiber, which determines that it has some characteristics of plastic and wood.

1) Good processing performance.Wood plastic composite material contains plastic and fiber, so it has the same processing performance as wood. It can be sawn, nailed and planed. It can be finished by using woodworking tools, and the nail holding force is obviously better than other synthetic materials. The mechanical properties are better than that of wood materials. The nail holding force is generally 3 times that of wood and 5 times that of particleboard.

2) Good strength performance.Wood plastic composite material contains plastics, so it has better elastic modulus. In addition, it contains fiber and is fully mixed with plastic, so it has the same physical and mechanical properties as hardwood, such as compression resistance and bending resistance, and its durability is significantly better than ordinary wood materials. The surface hardness is high, generally 2-5 times that of wood.

3) Water and corrosion resistance, long service life.Compared with wood, wood plastic materials and their products are resistant to acid and alkali, water and corrosion, and do not breed bacteria, are not easy to be mothed and do not grow fungi. Long service life, up to more than 50 years.

4) Excellent adjustable performance.With the aid of additives, plastics can be changed by polymerization, foaming, curing and modification, thus changing the density and strength characteristics of wood plastic materials, and achieving special requirements such as anti-aging, antistatic, flame retarding and so on.

5) It has UV light stability and good colorability.

6) Its biggest advantage is to turn waste into treasure, and can be 100% recycled. It can be decomposed without causing "white pollution" and is a real green environmental protection product.

7) Wide sources of raw materials.The plastic raw materials for the production of WPC are mainly high-density polyethylene or polypropylene. The wood fiber can be wood powder, rice bran or wood fiber. In addition, a small amount of additives and other processing aids are needed.

8) It can be made into any shape and size as required.

Material process editor

With the development of WPC, the raw materials of WPC are not only HDPE or PP, but also PVC and PS. The technology has also been developed from the earliest single screw extruder to the second generation conical twin screw extruder, and then to granulating by parallel twin screw extruder, and then extruded by conical screw, which can make up for the difficulty of plasticization, poor aging resistance, poor creep resistance, poor color consistency and durability, and tensile strength. 

[1] After years of R & D and accumulation, many scientific research institutes and Hanyong plastic new materials in China have manufactured WPC materials that can completely meet the requirements of GB / T 24137 and ASTM d7031; ASTM d7032; BS DD CEN / TS 15534-3. 

Scope of application

One of the most important uses of WPC is to replace solid wood in various fields, of which the most widely used is in construction products, accounting for 75% of the total WPC products. 

See table 1.3-1 for the main places and uses of WPC.

Table 1.3-1 main places and uses of WPC