Salix psammophila/polyethylene wood-plastic composite material and preparation method thereof

Abstract

The invention discloses a salix psammophila / polyethylene wood-plastic composite material and a preparation method thereof. The salix psammophila / polyethylene wood-plastic composite material is prepared from the following ingredients in percentage by mass: 30-40% of salix psammophila wood powder with the granule diameter of 40-80 meshes, 30-40% of polyethylene, 15-30% of high density polyethylene, 2-6% of light calcium carbonate, 1-3% of coupling agent, 1-3% of lubricant and 1-5% color master batch. The preparation method of the salix psammophila / polyethylene wood-plastic composite material comprises the following steps of: (1) preparing the salix psammophila wood powder; (2) drying raw materials; (3) weighing the raw materials in proportion; (4) pretreating the salix psammophila wood powder; (5) stirring and heating; (6) carrying out extrusion granulation; and (7) cutting, drying and packaging. The salix psammophila / polyethylene wood-plastic composite material has the advantages of corrosion resistance, moisture resistance, easiness in preparation, high strength, good durability, strong adjustability, wide range of sources of raw materials, low cost and environmental pollution reduction.

Description

technical field [0001] The invention relates to a wood-plastic composite material and a manufacturing method thereof, in particular to a Salix salix / polyethylene wood-plastic composite material and a manufacturing method thereof. Background technique [0002] Wood-plastic composite material 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 instead of the usual resin adhesive, and more than 50% of wood powder, rice husk, straw, etc. Waste plant fibers are mixed into new wood materials, and then plates or profiles produced by extrusion, molding, injection molding and other plastic processing techniques. Mainly used in building materials, furniture, logistics packaging and other industries. [0003] At present, wood-plastic composite materials are generally made of waste plastics or new materials, mixed with waste wood and straw crushed materials, mixed and st...

AI Technical Summary

Problems solved by technology

[0003] At present, wood-plastic composite materials are generally made of waste plastics or new materials, mixed with waste wood and straw crushed materials, mixed and stirred, and directly poured into molds for compression molding or extrusion and granulation, and then extruded and injected. Timber and straw are of different lengths and thicknesses, different particle sizes, and unstable material sources. Additional processes and related equipment such as classification, cleaning, and crushing are required, which increases production costs and causes unstable product quality and poor physical and chemical properties.