A kind of low-odor spray-molded automobile instrument panel material and preparation method thereof

A low-odor technology for automotive dashboards, applied in polyurea/polyurethane coatings, coatings, etc., can solve the problems of high viscosity of polyester polyols, high elongation at break, unfavorable processing and production of dashboards, etc., and achieve a good surface Performance, the effect of excellent wear resistance
CN108299668BActive Publication Date: 2021-02-05BOMEX CHEM SHANGHAI
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
BOMEX CHEM SHANGHAI
Publication Date
2021-02-05

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Abstract

The invention discloses a low-odor spray-molded automobile dashboard material and a preparation method thereof. The spray-molded automobile dashboard material comprises two layers, the surface layer is a water-based two-component in-mold paint layer, and the film inner paint is dispersed by water-based polyurethane The body reacts with the aliphatic curing agent to form a film with a certain thickness, the thickness is 10-100ΞΌm; the inner layer is a polyurethane layer, and the polyurethane layer contains amino polyether, polyether polyol, chain extender, cross-linking agent, catalyst, etc. and isocyanate compound Formed by polymerization reaction, thickness 0.5‑5 mm. When the material of the present invention is used to prepare an instrument panel, especially when the parts of the instrument panel are in different directions, the material can be solidified rapidly and the sagging phenomenon is avoided. In addition, the instrument panel made of the above materials has reasonable mechanical properties, excellent surface properties and aging resistance, which improves the explosion problem of the safety airbag of the car in an accident and improves the safety performance of the car. The invention discloses a preparation method of the instrument panel material.
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Description

technical field

[0001] The invention relates to a plastic spraying material and a preparation method thereof, in particular to a low-odor spray molding automobile instrument panel material and a preparation method thereof.

[0002] The invention relates to a plastic-sprayed automotive instrument panel material, the surface layer of which is a water-based two-component in-mold paint. While further improving the odor and VOC of the automotive interior material, the instrument panel is endowed with excellent surface properties, including wear resistance, and Solvent and weather resistance. Its inner layer is a polyurethane layer, which is formed by reacting a composition with polyether polyol as the main component and an aromatic isocyanate compound. The composition with polyether polyol as the main component contains amino polyether with extremely high activity , to improve the sag problem of sprayed polyurethane in the spraying process, or the problem of material performance d...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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