High-strength fiberglass wood-plastic profile and preparation method thereof

Abstract

The invention discloses a high-strength glass fiber wood plastic profile. According to the technical key points, the profile is prepared from the following raw materials in parts by weight: 40-65 parts of flake waste plastics, 50-75 parts of 40-120-mesh saw dust, saw powder or / and wood shavings, 15-25 parts of 40-120-mesh rice bran powder, 8-15 parts of 3-6mm alkali-free and / or medium-alkali glass fibers, 6-10 parts of maleic anhydride grafted polyethylene, 3-4 parts of a coupling agent, 4-10 parts of zinc stearate and / or polyethylene wax, 0.5-1 part of UV-531 and 0.5-1 part of AT-168, wherein the coupling agent is selected from more than one of a silane coupling agent, an aluminate coupling agent or a titanate coupling agent, and the dosage of the maleic anhydride grafted polyethylene is the same as that of the coupling agent. The problems that hydrophilic wood fibers and a hydrophobic thermoplastic plastic matrix are low in interfacial compatibility and adhesiveness and the performance is increased in a one-way mode in the process of preparing an existing wood plastic composite material, and the like are fundamentally solved.

Description

technical field [0001] The invention relates to the field of wood-plastic boards, in particular to a high-strength glass fiber wood-plastic profile in which glass fibers treated with a coupling agent are added to raw materials and a preparation method thereof. Background technique [0002] Wood-plastic composite materials are made of wood powder, agricultural straw powder and other plant fibers and plastics as the main raw materials, processed by advanced technology, and the products can be recycled and reused repeatedly. In recent years, with the depletion of global resources, social awareness of environmental protection is increasing. As a brand-new green environmental protection product, wood-plastic composite material is an ecologically clean composite material. Its production raw materials can use various waste plastics, waste wood and agricultural and forestry residues. It helps to slow down the pollution of plastic waste, and also helps to reduce the environmental p...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a high-strength glass fiber wood-plastic profile, which fundamentally solves the problem of poor interfacial compatibility and stickiness between the hydrophilic wood fiber and the hydrophobic thermoplastic matrix in the preparation process of the existing wood-plastic composite material. Poor compatibility, unidirectional growth of performance, etc.

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