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| Wood plastic composite materials |
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| 2278 Beiträge - Forenlegende
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<p>WPC is short for wood-plastic composites, also known as WPC. It mainly uses waste plastics instead of commonly used resin adhesive, and wood flour, rice husk, agricultural straw and other plant fibers as raw materials produced by a new modified environmental protection materials, widely used in construction, furniture, packaging, garden , Transportation and other industries.</p>
<p>Because of this composite material combines the advantages of wood and plastic: environmental protection, durability, long life, the appearance of wood, plastic products than the high hardness, rigidity, anti-acid, anti-moth, good resistance, zero formaldehyde, Non-polluting and recyclable characteristics, making it in recent years, the rise of domestic flourish. From the visible this new composite material is a very promising "low-carbon, environmentally friendly, recyclable" materials.</p>
<p>Wood-plastic composites (WPC) processing, due to the compatibility between wood and plastic is poor, the interface adhesion is also very small, so it is necessary to have a strong water absorption of wood and hydrophobic combination of plastic Together, is a very difficult thing. In order to improve the wood-plastic materials in the processing process has good processing performance and superior performance, so we have to use the appropriate additives to improve their compatibility between the two. In the processing of wood-plastic composites, the addition of lubricants reduces the friction between the compounds and the processing machinery, enables the processing equipment to achieve optimal operating characteristics, improves melt flow and improves the appearance of the extruded product Quality, increase production. Good lubricant can be with the resin at high temperature has good compatibility, can reduce the resin within the intermolecular cohesive energy, reduce the friction between molecules, improve the melt fluidity, and promote the sliding of resin particles. Commonly used lubricants are: hard bile acid zinc, ethylene bifid fatty acid amide, polyester wax, stearic acid, lead stearate, polyethylene wax, paraffin, oxidized polyethylene wax.</p>
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| Beitrag vom 23.02.2017 - 03:55 |
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