Inorganic mineral filled wood-plastic composite material and preparation method thereof

Abstract

The invention discloses an inorganic mineral filled wood-plastic composite material and a preparation method thereof. The composite material is prepared from the following raw materials in parts by weight: 5-50 parts of organic macromolecule resin, 1-100 parts of inorganic mineral material, 2.5-30.0 parts of wood raw material, 0-5 parts of plasticizing agent, 0.25-5.00 parts of coupling agent, 0.05-2.00 parts of foaming agent, 0.01-3.00 parts of foam control agent, 0.05-4.00 parts of impact modifier, 0.05-4.00 parts of lubricating agent, and 0.1-5.0 parts of stabilizing agent. The preparation method comprises the following steps of: crushing and drying all the raw materials, mixing the crushed materials, and extruding the mixture by an extruder to obtain the inorganic mineral filled wood-plastic composite material. According to the composite material, the inorganic mineral material is used as a filling agent, one the one hand, special functional characteristics of the inorganic mineral material are reflected, on the other hand, mechanical property and processability of a material in the original prescription are maintained, investment on the wood material and the other materials with pretty high cost is reduced, and the cost of the wood-plastic composite material is greatly reduced.

Description

technical field [0001] The invention relates to the field of wood-plastic composite materials, in particular to an inorganic mineral-filled wood-plastic composite material composed of organic polymer resin, wood raw materials and inorganic mineral materials and a preparation method thereof. Background technique [0002] Wood-polymer Composites (WPC for short) is based on wood chips and other primary biomass materials, mixed with a certain proportion of plastic base materials, using the chemical principle of polymer interface and the characteristics of plastic filling modification, through special A new type of environmentally friendly material that is processed and formed after technological treatment. The material combines the advantages of wood and plastic, has excellent mechanical properties and processing properties, and has the ability to overcome the shortcomings of wood such as moth-eaten, moisture absorption, and deformation. Compared with wood, this material is lig...

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Problems solved by technology

[0003] Wood-plastic composite materials require a large amount of wood materials. Due to the need to protect forest resources, wood materials should not be used more. However, there is no report of using other raw materials to replace wood materials to produce wood-plastic composite materials.

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