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analyzed of Polyethylene/wood powder composite foaming extrusion technology

   Date:2016-04-26  Author:Admin  Views:426
 At present, widely used in the world wood powder or plant fiber to high share filled plastic reworked material or new material, the method of to reduce the cost of materials and recycling of the purpose of environmental performance.We according to the trend of the development of wood plastic industry in the world, polyethylene/wood powder composite foaming extrusion is put forward.It with the traditional wood plastic composite extrusion (just wood powder and plastic compound extrusion, don't have the composition) foam, foam with wood powder technology can make the production profile density reduced by 20% ~ 45%, closer to wood in wood plastic composite foam products, resin content only accounts for 40% ~ 50% of material, make the amount of resin compared with the traditional wood plastic composite product cut in half, and the cost of resin generally accounts for 80% ~ 90% of the cost of materials, thus saves almost two times the cost of materials.With anti-corrosion, insect-resistant, moisture proof, flame retardant, the advantages of long service life and can be reused at the same time, wood plastic foamed composites than the foam similar content more woodiness feeling, also can bear the pressure of screws and nails, and foaming of internal pressure can provide better than the foam profile surface texture resolution and more smooth contour, so it is better than traditional wood plastic composite extrusion have broad application prospects.According to experts predict that in the next 10 years wood plastic composite product only in North America market capacity of up to 10000 kt, according to the Chinese market and north American market is incredible accomplishments die and more than North America lack of wood, and state the requirement of environmental protection in recent years, wood plastic composite products in China is expected to sustainable development at a speed of more than 50% annual growth rate of 10 years, China's wood plastic composite materials and its products production and output will eventually reach began to form with an annual output of 000 yuan output value of 10, 000, 000 kt or a huge new industrial system.In this case, we have polyethylene/wood powder composite foaming extrusion line subject in-depth research, is of great significance and value.This article will focus on polyethylene/wood powder composite foaming formulation and mold design method do in-depth research, began to solve the problem in the research process.
 
 
 
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