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Preparation method of metal feeling low-luster automotive interior material

A technology of automotive interior and metal texture, which is applied in the field of automotive interior materials, can solve problems such as low gloss, and achieve high material utilization, excellent scratch resistance, and high-grade effects

Pending Publication Date: 2017-02-08
BENECKE CHANGSHUN AUTO TRIMZHANGJIAGANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the above problems in the prior art and provide a method for preparing a low-gloss automotive interior material with a metallic texture. The material prepared by the present invention has thermoplasticity and can be put into production on the existing injection mold Use, no need for additional equipment investment, solve the disadvantages of the original plastic feeling of injection molded parts, and save the post-painting process, excellent scratch resistance performance, in line with the requirements of automobile manufacturers for interior parts with low VOC, scratch resistance, low gloss, High grade requirements

Method used

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  • Preparation method of metal feeling low-luster automotive interior material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] In Example 1, the film material formula was screened, and the film material formula included: 60 parts of polypropylene, 15 parts of rubber, 0.5 part of solubilizer, and 20 parts of inorganic filler.

[0035] Among them, the rubber includes ethylene octene rubber, ethylene butene rubber, and ethylene propylene rubber.

[0036] The solubilizer includes: maleic acid grafted polypropylene, maleic anhydride grafted polypropylene, maleic acid grafted polyethylene, maleic anhydride grafted polyethylene.

[0037] The inorganic filler includes: talcum powder, glass fiber, mica, calcium carbonate and barium sulfate.

[0038] The particle size of talcum powder, mica, calcium carbonate and barium sulfate is 300 mesh, and the length of glass fiber is 50 μm.

[0039] Waterborne polyurethane coating material formula: 60 parts of waterborne polyurethane dispersion, 0.5 part of polyurethane thickener, 0.1 part of isocyanate curing agent, 30 parts of water, 0.5 part of silicon dioxide,...

Embodiment 2

[0041] The film material formula in Example 2: 70 parts of polypropylene, 27 parts of rubber, 1.5 parts of solubilizer, and 33 parts of inorganic filler.

[0042] Among them, the rubber includes ethylene octene rubber, ethylene butene rubber, and ethylene propylene rubber.

[0043] The solubilizer includes: maleic acid grafted polypropylene, maleic anhydride grafted polypropylene, maleic acid grafted polyethylene, maleic anhydride grafted polyethylene.

[0044] The inorganic filler includes: talcum powder, glass fiber, mica, calcium carbonate and barium sulfate.

[0045] The particle size of talcum powder, mica, calcium carbonate and barium sulfate is 500 mesh, and the length of glass fiber is 50 μm.

[0046] Water-based polyurethane coating material formula: 72 parts of water-based polyurethane dispersion, 1 part of polyurethane thickener, 0.25 parts of isocyanate curing agent, 45 parts of water, 1.75 parts of silicon dioxide, and 28 parts of metal powder.

Embodiment 3

[0048] The film material formula includes: 80 parts of polypropylene, 30 parts of rubber, 2 parts of solubilizer, and 45 parts of inorganic filler.

[0049] Among them, the rubber includes ethylene octene rubber, ethylene butene rubber, and ethylene propylene rubber.

[0050] The solubilizer includes: maleic acid grafted polypropylene, maleic anhydride grafted polypropylene, maleic acid grafted polyethylene, maleic anhydride grafted polyethylene.

[0051] The inorganic filler includes: talcum powder, glass fiber, mica, calcium carbonate and barium sulfate.

[0052] The particle size of talcum powder, mica, calcium carbonate and barium sulfate is 900 mesh, and the length of glass fiber is 50 μm.

[0053] Water-based polyurethane coating material formula: 75 parts of water-based polyurethane dispersion, 1.5 parts of polyurethane thickener, 0.5 parts of isocyanate curing agent, 60 parts of water, 2 parts of silica, 35 parts of metal powder.

[0054] Step 1, preparing each compo...

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Abstract

The invention discloses a preparation method of a metal feeling low-luster automotive interior material. The preparation method comprises 1, film material preparation: S101, uniformly mixing polypropylene, rubber, a solubiliser, an inorganic filler and color master batches, putting the uniform mixture into a double-roller open mill, carrying out open milling and preparing a film material with the thickness of 1-10mm and S102, carrying out corona treatment on the film material obtained by the step S101 so that surface polarity of the film subjected to corona treatment is improved, 2, preparing an aqueous polyurethane coating material and 3, coating the surface of the film material with a uniform polyurethane coating and carrying out drying to obtain the metal feeling low-luster automotive interior material. The preparation method solves the problem of plastic feeling of the existing injection molding plastic, is free of a later paint spraying process and satisfies requirements of low VOC, scratch resistance, low luster and high quality level provided by the automobile manufacturer on automotive interiors.

Description

technical field [0001] The invention relates to the field of automotive interior materials, in particular to a method for preparing an automotive interior material with metallic texture and low gloss. Background technique [0002] At present, the interior parts of domestic mainstream family cars are mainly made of polypropylene injection molding, and most high-end cars choose soft materials (mainly slush-molded PVC, polyurethane spraying, leather covering, etc.). Due to the high surface gloss of polypropylene injection molding, it does not meet the requirements of automobile safety, so the painting process is essential. Although the subsequent painting can achieve a matte effect, the generation of volatile organic compounds (VOC) is inevitable. [0003] The commonly used automotive interior materials have the following defects: polypropylene as an exterior material has the defects of limited gloss and poor scratch performance, and the plastic texture of polypropylene injecti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04C08J7/12C08L23/12C08L23/08C08L23/16C08L51/06C08K7/14C08K3/34C08K3/26C08K3/30C09D175/04C09D5/38C09D7/12
CPCC08J7/0427C08J7/123C08J2323/12C08J2475/04C08K2201/003C08K2201/004C08L23/12C08L2205/02C08L2205/025C08L2205/035C09D5/38C09D175/04C08L23/0815C08L23/16C08L51/06C08K7/14C08K3/34C08K2003/265C08K2003/3045C08L75/04C08K3/36C08K3/08
Inventor 徐龙城刘海洋滕大勇
Owner BENECKE CHANGSHUN AUTO TRIMZHANGJIAGANG
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