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Techniques for producing materials for wood plastic composite pavilions

If the plastic wood composite material needs to improve the interface affinity between wood powder and resin during processing, some additives can be added to change the surface of polymer and wood powder. If the dispersing effect of high-filled wood powder in the molten thermoplastic is poor during processing, so that the fluidity of the melt is also poor, and the extrusion of plastic wood molding is difficult, then the surface treatment agent can be added at this time to improve, improve the fluidity of the material is conducive to extrusion molding.

Temperature also has an important influence on the processing and forming performance of plastic wood composites. The temperature of the barrel and the head have a great influence on the plastic wood composite material in the extrusion process. The barrel temperature has a decisive influence on the mixing and plasticizing effect of plastic wood composite materials. The temperature of the die has a vital influence on the extrusion molding of plastic wood composites. On the premise of satisfying the plasticization quality of the material, the temperature of the extruder head should be reduced as much as possible. The temperature of the die head is very critical to the extrusion molding of wood plastic composite materials, and it has a controlling effect on the quality of extrusion molding.

The influence of the speed of wood plastic composite material in the process of processing and forming. Increasing the speed of the screw can increase the extrusion output of plastic wood materials, improve production efficiency and reduce production costs, which are the goals pursued by modern industrial production. When a higher speed is used, the material is not sufficiently cooled after being ejected, so that the cooling of the product is uneven, causing different degrees of ripples on the surface of the product, and the appearance and quality of the product will be affected. Sometimes the product cannot be formed, the production is forced to be interrupted, and the continuity of production is destroyed. When the number of revolutions is very low, the material is advancing in a laminar flow situation. The material can be fully cooled before it is shaped. After the product exits the mold, the surface is very smooth and the appearance quality is very good, but this will reduce the output .

In the process of plastic wood composite processing, the plastic matrix also needs to add various additives to improve its processing performance and product performance. If the wood flour structure is too fluffy during the feeding process, it is not easy to feed the screw of the extruder, especially if the wood flour contains more water, it is easy to bridge or hold the pole.

In addition to the above-mentioned processing tips, if you want to ensure the stability of the extrusion, you can use a forced feeding device and a reasonable conveying method. The instability of the feeding will directly cause the fluctuation of the extrusion, so that the quality of the extrusion is the output will be low, so the stability of the feed must be guaranteed.

Seven Trust

Seven Trust, Author

China's leading wood-plastic manufacturer and supplier. Design inspiration and products - to provide customers with perfect outdoor landscape solutions.

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