Wood plastic boards and method for making same

Abstract

The invention discloses a wood-plastic board material and a production method thereof. The material is produced by a raw material with the following weight portions: 50 to 70 portions of polyethylene and polypropylene, 20 to 40 portions of crushed straw, old clothes and chemical fiber scrapped parts, 5 to 8 portions of slag powder or clinker, and 0.2 to 0.5 portion of additive. The production method is as follows: the blending-pulverizing is performed, and the weighing pavement is carried out after the crushing; the raw material is sent into a hotpress at a temperature of between 130 and 190 DEG C and at the pressure of between 12 and 18MPa, for 20 to 30 minutes, the cooling shaping is performed at a dropped temperature of between 50 and 70 DEG C for 10 to 20 minutes, and the product is taken out after the hotpress is opened. The material has excellent performances such as flame retardation, heat insulation, water proofness, acid and alkali resistance and so on, does not use glue during the hot press molding, has no pollution of formaldehyde, no toxicity and no smell, can be reclaimed for 100 percent, has simple maintenance and high reuse rate, and is a decorative building material with high strength, good elasticity and bending resistance; and the production method has high finished product rate, simple process, less investment and energy conversation.

Description

technical field [0001] The invention relates to a building material, in particular to a wood-plastic composite material and a manufacturing method thereof. Background technique [0002] The current wood-plastic panels have higher requirements for raw materials, and less waste plastics are used for recycling. A large proportion of new plastics is required, so the cost is high. Take building templates as an example: one piece (122cm×244cm×1.5cm) The template needs 240-300 yuan, which has become a major resistance to the promotion of wood-plastic building materials; the additives required by the existing technology, such as calcium carbonate, modified resin, zinc stearate, liquid paraffin, etc. Need to add again. In addition, the current production of wood-plastic panels is extrusion molding or injection molding process, which consumes a lot of power and the yield is not high. Taking building formwork as an example, a piece of (122cm×244cm×1.5cm) formwork needs to be extruded....

AI Technical Summary

Problems solved by technology

[0002] The current wood-plastic panels have higher requirements for raw materials, and less waste plastics are recycled, so a large proportion of new plastics are needed, so the cost is high. Take building templates as an example: one piece (122cm×244cm×1.5cm) The formwork needs 240-300 yuan, which has become a major resistance to the promotion of wood-plastic building materials; the additives required by the existing technology, such as calcium carbonate, modified resin, zinc stearate, liquid paraffin, etc. need to add again

In addition, the current production of wood-plastic panels is extrusion molding or injection molding process, which consumes a lot of power and the yield is not high. Taking building formwork as an example, a piece of (122cm×244cm×1.5cm) formwork needs to be extruded. About 15 minutes, it still needs to cool down, and it is prone to residual products, such as deformation

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