Wood-plastic composite floor

Abstract

The invention relates to a wood-plastic composite floor. A preparation method of the wood-plastic composite floor comprises the following steps of taking wood materials according to proportions, mixing well, drying the wood mixture at a temperature of 80 to 120 DEG C until water content of the wood mixture is below 2.5%, crushing the dried wood mixture by a crusher until particle sizes of the dried wood mixture are in a range of 50 to 90 meshes, removing impurities in thermoplastic materials, carrying out mixing and fusion of the thermoplastic materials without impurities, adding the wood mixture powder, a surface treatment agent and an adsorbent into the thermoplastic materials obtained by the previous step, mixing fully, and carrying out plastic preparation processes such as sheet drawing, lamination and the like to obtain a finished wood-plastic composite floor. The wood materials comprise wood granules and at least two of rice husks, carapaces and straws, wherein a weight part ratio of the wood granules to the at least two of rice husks, carapaces and straws is (1 to 2): (0.5 to 1): (0.5 to 1). The wood materials composed of multiple materials are adopted by the preparation method of the wood-plastic composite floor so that long and short fiber defects are overcome. Chitin added in the wood-plastic composite floor can absorb moisture of air to change into sticky paste so that the coherence of materials is improved. The preparation method of the wood-plastic composite floor reduces use amounts of auxiliary agents. The wood-plastic composite floor prepared by the preparation method has similar performances with a wood-plastic material prepared from a single wood material, is environmentally friendly and has a low cost.

Description

Technical field [0001] The invention relates to a new type of building material, in particular to a wood-plastic composite floor. Background technique [0002] Wood-plastic composite material is a new type of material. It is made by mixing processed waste wood, sawdust crop stalks, and nut shells in a certain proportion with thermoplastic materials through high temperature and high pressure treatment. It has acid and alkali resistance and does not Rotting and other advantages, but wood fiber is composed of cellulose, hemicellulose, lignin, etc., contains a large number of polar hydroxyl and phenolic hydroxyl functional groups, so it shows strong polarity and hydrophilicity, while polyolefin resin It is a typical non-polar resin with hydrophobicity. Due to the large difference in polarity, the compatibility of the hydrophilic polar wood surface and the hydrophobic non-polar resin interface is very poor. The mechanical properties of the composite material obtained by directly comp...

AI Technical Summary

Problems solved by technology

However, the existing wood-plastic materials are generally mixed with a single wood material and a single thermoplastic material, and a large amount of additives need to be added

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