PVC foamed co-extruded floor preparation process

Abstract

The invention provides a PVC foamed co-extruded floor preparation process, and relates to the technical field of production of plastics-wood materials. The floor preparation process mainly comprises the following steps: material mixing, extrusion foaming, co-extrusion and cooling and shaping production. In the material mixing process, 30-50% of PVC, 2-5% of foaming modifiers, 15-35% of filling agents, 1-5% of lubricating agents, 0.5-2% of foaming agents and processing agents are needed, wherein the percentage sum of all the components is 100%. In the material foaming process, high polymer materials cover foamed base materials through a co-extruder. The floor preparation process has the advantages that the water resistance and moisture resistance are achieved, the problem that the wood product is easy to rot and expand after absorbing water and being affected with the damp in a humid and moist environment is fundamentally solved, the plasticity is high, the personalized modeling can be realized very easily, the individual style is fully embodied, cracking is avoided, expansion is avoided, deformation is avoided, repair and maintenance are not needed, cleaning is facilitated, and later repair and maintenance cost is saved.

Description

[0001] Technical field: [0002] The invention relates to the technical field of plastic-wood material production, in particular to a preparation process for PVC foamed co-extruded flooring. [0003] Background technique: [0004] Plastic packaging waste has seriously polluted the environment, affected industrial and agricultural production, and endangered human health and the survival of animals and plants. The world's annual output of plastics has exceeded 200 million tons, and my country's plastic packaging materials have exceeded 10 million tons in 2007. After one-time use, most of these plastic packaging materials and containers have become solid waste. Plastic packaging waste is light in weight, large in size, large in quantity, difficult to degrade, and cannot be incinerated at will. Most of them are discarded beside railways, inland waters, and streets and alleys in cities and towns. Over time, they become shocking "white pollution" belts. According to the investigatio...

AI Technical Summary

Problems solved by technology

The performance of existing wood-plastic products is still not ideal, and there are still some defects, such as the density, expansion coefficient and other parameters of wood-plastic boards that need to be further improved, poor moisture and water resistance, and low plasticity.

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