Wood Plastic Composite(WPC) products are made of plastic (PP, HDPE, PVC, PS, ABS) and plant fiber (sawdust, waste wood, tree branches, crop straw powder, husk powder, wheat straw powder, peanut shell powder, etc.) as the main raw materials, together with other additives, through the extrusion of a variety of specifications of wood-plastic composite profiles.
Wood-plastic composites contain plastic and thus have a good modulus of elasticity. In addition, because the fibers and fully mixed with plastic, and thus have comparable hardwood compression, bending, and other physical and mechanical properties, their durability is significantly better than ordinary wood materials. The surface hardness is high, generally 2~5 times of wood.
Advantages of Wood Plastic Composite Products:
1. Able to provide a variety of specifications, sizes, shapes, and thicknesses of the demand, but also includes the provision of a variety of designs, colors, and wood grain of the finished product, to give customers more choices.
2. The products have excellent performance such as fireproof, waterproof, engage in corrosion, humidity resistance, no insect, no fungus, acid and alkali resistance, non-toxic, non-polluting, etc., and low maintenance cost.
3. The products have a similar wooden appearance, higher hardness than plastic, long life, thermoplastic molding, high strength, and energy saving.
4. The product is firm, lightweight, heat preservation, smooth and flat surface, does not contain formaldehyde and other harmful substances, non-toxic, and non-polluting.
Wood Plastic Composite can be used in various places indoors and outdoors. Currently, the main materials of WPC are divided into PE WPC, PP WPC, and PVC WPC.
Before mixing and granulation, wood-plastic composites need to treat all raw materials and auxiliary materials, after which the particles can be prepared. Otherwise, the various properties of the prepared profiles or plates will be poor and cannot meet the use.
The raw material for WPC pellets requires appropriate additives to modify the polymer and the surface of the wood flour to improve the dispersion and flow between the wood flour and the resin. The poor dispersion of high filler wood flour in molten thermoplastics makes the melt flow poor and the extrusion molding process difficult, so wood plastic lubricants can be added to improve the fluidity, thus enhancing the extrusion rate and extrusion quality.
Achieving Superior Quality: Technique to Improve Wood Powder Dispersion in Wood Plastic Composite Granulation
SILIKE Lubricant Additive (Processing Aids) For WPC is a special silicone polymer, specially designed for wood-plastic composite materials. It uses special polysiloxane chains in the molecules to achieve lubrication and improve other properties. It can reduce the internal friction and external friction of wood-plastic composite materials, improve the sliding capacity between materials and equipment, more effectively reduce equipment torque, reduce energy consumption, and increase productivity.
SILIKE Lubricant Additive (Processing Aids) For WPC SILIMER 5400 is specially developed for the processing and production of PE and PP WPC (wood plastic materials) such as WPC decking, WPC fence, and other WPC composites, etc. The core component of this lubricant solution for WPC is modified polysiloxane, containing polar active groups, excellent compatibility with resin and wood powder, in the process of processing and production can improve the dispersion of wood powder, does not affect the compatibility effect of compatibilizers in the system, can effectively improve the mechanical properties of the product.
SILIKE Lubricant Additive (Processing Aids) For WPC for WPC composites is better than WPC wax or WPC stearate additives and cost-effective, excellent lubrication, can improve the matrix resin processing properties, but also can make the product smoother, give your wood plastic composites a new shape.
Advantages of Lubricant Additive (Processing Aids) For WPC
1. Improve processing, reduce extruder torque, and improve filler dispersion;
2. Internal&external lubricant for WPC, reduce energy consumption and increase production efficiency;
3. Good compatibility with wood powder, does not affect the forces between the molecules of the wood plastic composite and maintains the mechanical properties of the substrate itself;
4. Reduce the amount of compatibilizer, reduce product defects, and improve the appearance of wood plastic products;
5. No precipitation after boiling test, keep long-term smoothness.
For SILIKE Processing lubricants for WPC, addition levels between 1~2.5% are suggested. It can be used in classical melt blending processes like Single /Twin screw extruders, injection molding, and side feed. A physical blend with virgin polymer pellets is recommended.
In addition, SILIKE Processing lubricants offer different solutions for different situations for wood-plastic raw materials. Contact us now to learn more and explore how SILIKE can help you overcome surface imperfections and achieve superior product quality.
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Email: amy.wang@silike.cn
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