New-type multifunctional polyurethane foaming machine

Abstract

The new-type multifunctional polyurethane foaming machine may be used in foaming and forming high pressure polyurethane, foaming and forming polyurethane with CO2 and SC-CO2 as foaming agent, and foaming and forming microporous material. It has high pressure gear pump for conveying material, high and low pressure circulation converter, supercritical fluid generator, mixing injection gun, etc. interlinking under PLC control. The present invention features the capacity of realizing formation in different modes, the introduction of CO2 and SC-CO2 generator for 'green' formation in greatly shortened forming formation period, raised production efficiency and high product quality.

Description

technical field [0001] The invention relates to the field of polymer material molding processing equipment, in particular to the field of polyurethane foam molding processing equipment. The invented new multifunctional polyurethane foam machine can be used for high-pressure polyurethane foam molding, CO 2 and SC-CO 2 (supercritical CO 2 ) is polyurethane foaming and microcellular foaming molding of foaming agent. Background technique [0002] Since its appearance in the middle of the twentieth century, due to the variability of manufacturing formulas and the adaptability of product performance, as well as its excellent physical and mechanical properties, acoustic properties, electrical properties and chemical resistance, polyurethane foam has been widely used and almost penetrated into the world. various sectors of the national economy. [0003] With the continuous improvement of molding technology and the improvement of production technology, the polyurethane foam indus...

AI Technical Summary

Problems solved by technology

Although most HFCs have the advantage of being non-combustible, they have the disadvantages of low toxicity and low thermal conductivity in the gas phase; alkane blowing agents are flammable and explosive, and the electrostatic accumulation during the molding process is easy to discharge and generate sparks to ignite the product, neither Safety wastes energy again; Although the water blowing agent has the advantage of non-toxicity, the resulting foam product is prone to the defect that the skin is thin and incomplete; CO 2 Blowing agent has the advantages of non-polarity, non-toxicity, non-combustibility, abundant and cheap, as a substitute for dangerous blowing agent, it has attracted widespread attention from domestic and foreign scientists.

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