Outdoor applications of WPC wood plastic co-extruded materials(capped composite decking,capped polymer,capped decking) in 2024

Outdoor applications of WPC wood plastic co-extruded materials(capped composite decking,capped polymer,capped decking) in 2024

As a new type of material, wood-plastic composite materials have become an important component material in outdoor buildings and have broad development prospects due to their outstanding features such as strong decorative properties, weak thermal conductivity, water resistance, heat resistance, corrosion resistance, and easy cleaning.

However, research shows that the complex interaction between the components of plastic-wood composite materials will affect the weather resistance, color loss and aging resistance of the material. At the same time, due to the strong ultraviolet rays, cold and heat changes, and wind and rain erosion in the use environment, it will also It will cause problems such as discoloration, powdering, cracking, and decrease in strength of plastic wood based on low weather-resistant plastics (polyolefin PE, PP, PVC). The first generation of plastic wood products are more prone to microbial erosion due to cost reasons; the flexural modulus and flexural strength are generally low or unstable due to fluctuations in recycled plastics; the use of different plastics and fibers causes the stability of the surface color of batches of products question.

The resulting customer complaints and related claims will always plague the development of the industry. How to improve the weather resistance of plastic wood has become the key to the development of the industry.

In order to solve the above problems, some companies have developed new PE plastic wood co-extruded material products. The new PE plastic wood co-extruded outdoor plastic wood products have excellent weather resistance and non-fading characteristics compared with ordinary outdoor PE plastic wood products. It can completely solve the performance degradation and color changes of plastic wood products caused by climate and environmental reasons, and protect the plastic wood products from weather erosion such as sunlight, rain, acid rain, etc. for a long time. At present, the new PE plastic wood co-extrusion material has been widely used and recognized in the market.

There is a functional co-extruded wood surface functional layer that uses nano-modification enhanced ultra-high molecular graphene/polyethylene composite triple full-covering technology in the aerospace and military fields. The triple protection allows outdoor wood substitute products to completely say goodbye to fading, water absorption, Resisting problems such as cracking and deformation, it is extremely durable and looks like new for 25 years.

At the same time, through unique color mixing, hot pressing, and post-processing processes, the surface has a softer, more gorgeous, simulated high-end solid wood effect, but has a longer service life. And the outer layer is a polymer material layer that is highly wear-resistant, weather-resistant, mildew-proof and insect-proof. Its water absorption rate is almost “zero”. There is no need to add filling like the first generation plastic wood, and it no longer exhibits hard and brittle defects. The density of the finished product breaks through the bottleneck and is reduced and maintained at a reasonable 1.2g/cm³, which is almost the same as hard solid wood. It not only ensures the density and performance of the material, but also does not produce “brittleness” shortcomings. Furthermore, the outer protective layer, which is mainly made of functional polymer materials, is more resistant to oil stains and dust adhesion. Once stains are attached to the surface, it will still be as clean as new after being washed away by rain.

In addition, most of the current experiments and processing of plastic-wood composite co-extrusion profile production equipment use manual control. By manually observing changes in the pressure indicator, adjusting the screw speed and temperature values, and then controlling the pressure value.

This is not only inaccurate and time-consuming, but also affects the quality of the extruded product if the adjustment is not timely. Co-extrusion process design must not only consider the characteristics of the extruder flow channel, but also have a good grasp of the design ideas of each functional module of the equipment. Better process design will improve the surface smoothness and production efficiency of the product. Foreign research on composite co-extrusion technology has developed rapidly, and many large-scale production equipment have entered the Chinese market. In the future, the domestic plastic-wood composite co-extrusion material market will be greatly affected.

Therefore, the current domestic research on plastic-wood composite co-extrusion technology is particularly important. While researching on composite co-extrusion technology, it is necessary to promote the automation process of composite material co-extrusion equipment. This will help improve the quality of composite materials and reduce costs, and has important research value. .

titles:Outdoor applications of WPC wood plastic co-extruded materials(capped composite decking,capped polymer,capped decking) in 2024