How to solve the processing difficulties of wood-plastic composites?
Wood plastic composite is a composite material made from a combination of wood fibers and plastic. It combines the natural beauty of wood with the weather and corrosion resistance of plastic. Wood-plastic composites are usually made from wood chips, wood flour, polyethylene or polypropylene, and other plastics, which are mixed and then made into sheets, profiles, or other shapes through extrusion molding or injection molding processes. With the advantages of not being easy to crack, not easy to deform, water resistance, anti-corrosion, and acid and alkali resistance, wood-plastic composites are widely used in indoor and outdoor flooring, wall panels, railings, flower boxes, furniture, and other fields.
The current processing difficulties of wood-plastic composites are mainly in the following areas:
1. High viscosity: The plastic matrix in wood-plastic composites usually has a high viscosity, making it less fluid during processing and leading to increased processing difficulty.
2. Thermal sensitivity: Some wood-plastic composites are sensitive to temperature; too high a processing temperature may result in melting, deformation, or decomposition of the material, while too low a temperature affects the fluidity and molding properties of the material.
3. Poor dispersion of wood fiber: The dispersion of wood fiber in the plastic matrix is poor, which is easy to causes fiber agglomeration, affecting the mechanical properties and appearance quality of the material.
4. Difficulty of high filler rate: Wood-plastic composites often need to add a high proportion of wood fiber filler, but due to the large size of the filler, and the plastic not easy to mix, the processing is prone to low dispersion, poor filler uniformity.
In order to solve the difficulties in processing wood-plastic composites, SILIKE has developed a series of special lubricants for Wood plastic composites(WPCs)
Lubricant Additive (Processing Aids) For WPC SILIKE SILIMER 5400, is specially developed for the processing and production of PE and PP WPC (wood plastic materials) such as WPC decking, WPC fences, and other WPC composites, etc. A small dosage of this SILIMER 5400 Lubricant Additive can significantly improve the processing properties and surface quality, including reducing the COF, lower extruder torque, higher extrusion-line speed, durable scratch & abrasion resistance, and excellent surface finish with a good hand feel
The core component of this WPC Lubricant 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.
WPC Lubricants Differences >>
This SILIMER 5400 WPC Lubricant Processing Additive is better than wax or stearate additives and is cost-effective, has excellent lubrication, can improve the matrix resin processing properties, and also can make the product smoother, giving your wood plastic composites a new shape.
Post time: Sep-01-2023
