Composition of raw materials for outdoor wood plastic Great Wall panels：
60% of wood fiber
Mainly use Poplar powder.
Compared with mineral fibers, wood fiber raw materials have a wide range of features, low price,can be reprocessed, can be naturally regenerated, biodegradable, low density and so on.
In addition, wood fibers are used as an enhanced material in thermoplastics and show better mechanical properties, such as low hardness, low wear on processing equipment.
30% of plastic
We use HDPE. The choice of plastic mainly from its own performance, product requirements, supply situation and cost.
Due to the thermal stability of wood fibers, only thermoplastics with melting points below 200 ºC are usually used in WPC production
Commonly used plastics are recycled polyethylene(PE), polypropylene(PP), polyvinyl chloride(PCV) etc.
Among them, PE has always been the most important plastic raw material in wood plastic production.
10% additives
Added to the formulation of plastics and other composites to improve its sun resistance and prevent or reduce the damage caused to
plastics by UV rays in sunlight, collectively known as photostabilizers.
Antioxidants can slow or inhibit plastic oxidation degradation
Lubricants can reduce friction and change the processing performance during the molding process of wood-plastic composite materials
Colorants, antistatic agents, anti-mold and preservatives are also added to the formula.
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