Method for preparing reticular flexible polyurethane foam

Abstract

The invention relates to a method for preparing reticular flexible polyurethane foam by a one-step method, the reticular flexible polyurethane foam prepared by the method, and application of the flexible polyurethane foam in the aspects of sofas, mattresses and the like. The method provided by the invention adopts a one-step method, does not comprise a step of netting treatment, and is safe, environment-friendly and high in efficiency.

Description

technical field [0001] The invention relates to a method for preparing reticulated flexible polyurethane foam in one step, the reticulated flexible polyurethane foam prepared by the method, and the use of the flexible polyurethane foam in sofas, mattresses and the like. Background technique [0002] Reticulated flexible polyurethane foam refers to a network structure, mainly composed of meridian skeleton of cells, with no or only a small amount of cell wall membrane, high air permeability, large cell size, and certain elasticity soft polyurethane foam. Due to its unique structure and performance, this kind of foam has begun to be used in various fields such as furniture, sofas, mattresses, pillows, floor mats, clothing and filters, as well as industrial packaging. [0003] At present, the technology for industrial production of reticulated flexible polyurethane foam is known and disclosed in the art, and its preparation method is usually a two-step method. The first step i...

AI Technical Summary

Problems solved by technology

This method must be equipped with high-concentration lye, which poses safety hazards to operators, and the post-treatment of lye may also bring about environmental protection problems.

The blasting method is to put the foam into a special blasting device,

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