Plastic wood profile with abrasion resistance, scratch resistance, fouling resistance and weather resistance and preparation method thereof

Abstract

The invention belongs to the technical field of building materials, and particularly relates to a plastic wood profile. The plastic wood profile comprises a core profile, and protective layers with abrasion resistance, scratch resistance, fouling resistance and weather resistance are coated on upper, lower, left and right walls of the core profile in a co-extrusion molding mode. The protective layers comprise, by weight, 10-50% of high-density polyethylene (HDPE), 10-50% of propene polymer (PP), 10-50% of ethylene acrylic acid (EAA), 1-30% of Nano ZnO, 1-30% of padding, 0.1-0.5% of antioxidant, 0.1-0.5% of anti-ultraviolet agent, 0.3-1.5% of toner and 0.1-1% of mould inhibitor. According to the plastic wood profile, the protective layers with abrasion resistance, scratch resistance, fouling resistance and weather resistance are coated on the core profile in a co-extrusion molding mode, so that scratches caused by people flows and hard substances can be effectively prevented, the fouling resistance is high, the profile can withstand various severe natural tests, and the protective layers and the core profile are provided with high binding force.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a plastic-wood profile, in particular to the material of the plastic-wood profile, and to a preparation method thereof. Background technique [0002] Wood-plastic composites (Wood-Plastic Composites, WPC) is a new type of composite material that has been booming at home and abroad in recent years. It refers to the use of polyethylene, polypropylene and polyvinyl chloride, etc. A new material mixed with waste plant fibers. The profiles produced by wood-plastic composite materials through extrusion, molding, injection molding and other plastic processing techniques are called plastic wood profiles, which are mainly used in building materials, furniture, logistics packaging and other industries. [0003] The material used for wood-plastic profiles - the basis of wood-plastic composite materials is high-density polyethylene and wood fiber. This material determ...

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Problems solved by technology

[0004] However, wood-plastic profiles are used outdoors for a long time, and they are constantly subjected to friction from hard objects, invasion of stains, sun, wind, rain, etc., which will inevitably cause wear, pollution and aging, shortening their service life

[0005] In order to solve the above problems, some operators attach a layer of metal sheet or metal foil with a thickness of 0.1 to 0.5 mm on the surface of the wood-plastic profile through an adhesive to improve the wear resistance, stain resistance and weather resistance of the wood-plastic profile ( Chinese utility model patent 200720057206.3, metal-plastic composite profile), but this form of wood-plastic profile is not only costly, but also complicated to process, and the metal material cannot imitate the color and appearance of solid wood, and the metal sheet or metal foil is easy to fall off from the core material , the use effect is not ideal, it is difficult to apply in large quantities

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