Foaming process of water-borne polyurethane foam for finished automobile

Abstract

The invention aims to provide a foaming process of water-borne polyurethane foam for a finished automobile. The foaming process comprises steps as follows: (1) the water-borne polyurethane foam is prepared from components in parts as follows: 40-45 parts of water-borne polyether polyol, 40-45 parts of dichloro hydrogen acid ester, 8-10 parts of silicon whisker and 3-5 parts of glass fibers; (2) the components of the water-borne polyurethane foam in the step (1) are sufficiently mixed and uniformly stirred in parts and then subjected to extrusion palletization through an extruder; (3) an extruded material in the extrusion pelletizer is put in a prepared foaming mold for foaming, and the foamed sponge foam is cured after being placed at the set distance. The foam has the effects of sound insulation, heat insulation, shock resistance, electric insulation, heat resistance, cold resistance and the like, has good moisture absorption performance, can keep inside environment of the automobiledry and has high waterproof and adhesion properties.

Description

technical field [0001] The invention relates to the field of equipment for automobile materials, including the development and improvement of the processing and structure of automobile polymer materials, and in particular to a foaming process of water-based polyurethane foam for the whole vehicle. Background technique [0002] With the improvement of living standards, the use of automotive products has gradually increased, especially in the aspect of automotive interior parts. At this stage, people's use of cars is not only for transportation, but has entered the stage of enjoyment. For automobiles The comfort level during use, especially the foaming materials used for roof side panels and engine compartments. The original foaming materials are made of polyether polyol and dichlorohydrogen ester (MDI). However, the original shockproof, heat insulation, and sound insulation effects are insufficient, resulting in low comfort in the car and causing travel discomfort to a large ...

AI Technical Summary

Problems solved by technology

[0002] With the improvement of living standards, the use of automotive products has gradually increased, especially in the aspect of automotive interior parts. At this stage, people's use of cars is not only for transportation, but has entered the stage of enjoyment. For automobiles The comfort level during use, especially the foaming materials used for roof side panels and engine compartments. The original foaming materials are made of polyether polyol and dichlorohydrogen ester (MDI). However, the original shockproof, heat insulation, and sound insulation effects are insufficient, resulting in low comfort in the car and causing travel discomfort to a large extent.