Method for compositing leather on surface of bonder used by car door interior parts and containing modified diatomite

Abstract

The invention provides a method for compositing leather on the surface of a bonder used by car door interior parts and containing modified diatomite. The method is characterized by spraying the bonder on the interior part surface needing leather compositing and then composting leather, wherein the bonder is prepared from the following raw materials in parts by weight: 57-62 parts of EVA (ethylene-vinyl acetate copolymer), 8-12 parts of epoxy resin, 12-16 parts of C5 petroleum resin, 3-5 parts of microcrystalline wax, 0.5-1 part of WPP type polypropylene wax, 1-2 parts of dimethyl carbonate, 2-4 parts of nanometer celestite powder, 7-10 parts of modified diatomite, 2-3 parts of modified rice hull ash, 1.3-1.6 parts of a silane coupling agent KH560, 0.2-0.4 part of ferrocene, 0.3-0.6 part of n-butyl methacrylate, 0.4-0.6 part of epoxidized soybean oil, 0.4-0.6 part of an antioxidant 264, 0.2-0.4 part of an antioxidant 616 and 0.2-0.4 part of an antioxidant 333. The method has the beneficial effects that the method adopts a molding process, achieves automatic trimming and is high in efficiency; and meanwhile, the specific bonder is adopted, has high bonding strength, is flat and can not bubble after being used for a long time.

Description

technical field [0001] The invention belongs to the technical field of automobile parts manufacturing, in particular to a method for compounding leather on the surface of an automobile door interior trim using a binder containing modified diatomite. Background technique [0002] At present, the decorative materials on the surface of automobile doors include knitted fabrics or leather, etc., and the molding process of the products is a molding process or a low-pressure injection molding process. When molding, the fabric is often cut first, and then the edge is molded. The cutting craftsmen use the most, and each person's cutting method is different, so the consistency of the product cannot be guaranteed. The production efficiency of the molding process is low, and the defective rate is high. The amount of labor used is large, and the entire production process from semi-finished products to finished products is complicated. However, the cost of the low-pressure injection mold...

AI Technical Summary

Problems solved by technology

When molding, the fabric is often cut first, and then the edge is molded. The cutting craftsmen use the most, and each person's cutting method is different, so the consistency of the product cannot be guaranteed. The production efficiency of the molding process is low, and the defective rate is high. The amount of labor used is large, and the entire production process from semi-finished products to finished products is complicated

However, the cost of low-pressure injection molding process is too high, the investment in equipment is large, and the requirements for the extension of leather are extremely high.

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