Preparation method of solvent-free automotive interior synthetic leather

Abstract

The invention belongs to the technical field of synthetic leather, and particularly relates to solvent-free automotive interior synthetic leather and a preparation method thereof. The preparation method comprises the following steps: 1, loading a prepared water-based surface layer mixture on a machine, producing and scraping to obtain a water-based surface layer; and 2, mixing and stirring a component A and a component B to obtain a solvent-free bottom layer mixture, coating the water-based surface layer obtained in the step 1 with the solvent-free bottom layer mixture, drying, laminating base cloth, curing in a drying oven after laminating the base cloth, and stripping after curing and drying to obtain the solvent-free automotive interior synthetic leather. The solvent-free automotive interior synthetic leather and the preparation method thereof have the advantages that a flame retardant is not added to the surface layer of the solvent-free automotive interior synthetic leather, because the surface layer added with the flame retardant may influence the physical property, instead the flame retardant formed by compounding three components is added to a bonding layer, the flame retardant effect of the synthetic leather is ensured, and the situation that the flame retardant is separated out to influence the attractiveness of the leather surface can be effectively avoided.

Description

technical field [0001] The invention belongs to the technical field of synthetic leather, and in particular relates to a solvent-free automotive interior synthetic leather and a preparation method thereof. Background technique [0002] With the continuous improvement of the current international safety and environmental protection requirements for automotive interiors, including (odor, VOC, TVOC, flame retardant, atomization), more and more attention has been paid to environmentally friendly artificial leather and synthetic leather, among which solvent-free Polyurethane synthetic leather and water-based polyurethane synthetic leather are the environmentally friendly polyurethane materials that have attracted the most attention in recent years. They are environmentally friendly, non-toxic, and excellent in usability, and have become research hotspots at this stage. Compared with traditional PVC and PU synthetic leather etc. Although there is a little difference in price, it h...

AI Technical Summary

Problems solved by technology

Both materials produce a large amount of smoke and corrosive gas when burned, which will further generate new environmental problems. It is impossible to meet the current environmental protection and safety requirements, and the material does not bond well with isocyanate.

Simple addition of environmentally friendly flame retardants such as melamine, aluminum-based flame retardants, and magnesium hydroxide, although effective in flame retardancy, cannot meet the requirements of automotive interior materials

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