Automotive interior foam material

A technology for foaming materials and interior decoration, which is applied in the field of automobile interior decoration materials, and can solve the problems of complex process and high cost

Active Publication Date: 2016-06-08
江苏新昌汽车部件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The production of the middle layer foaming material has always been a difficult problem in the industry. The hardness and foaming thickness of the existing foaming materials have been criticized by manufacturers, and the cost is high and the process is complicated.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Example 1: The foaming material of the present invention is composed of ingredients A and polymethylene polyphenylisocyanate, calculated in weight percentage, the ingredient A is 55%, and the polymethylene polyphenylisocyanate is 45%; 25°C , the preparation method of the A batching is to add 400Kg polyether polyol 330 and 165Kg polyether polyol 3618 produced by Shandong Bluestar Dongda Chemical Co., Ltd. to the reactor, then add 21Kg triethanolamine, 7Kg tap water , and 0.8Kg of triethylenediamine with a purity of 99%, stirred for two hours to generate a white latex-like A ingredient; Methylene polyphenyl isocyanate and ingredients A are added to the high-pressure foaming machine at a weight ratio of 45% and 55% respectively. After mixing, a gray gelatinous liquid can be formed, which is cast on the body skeleton in the instrument panel mold After pressing, the middle layer foam material can be formed,

Embodiment 2

[0011] Example 2: The remaining steps and ingredients are the same as in Example 1, except that when the temperature is 20° C., the amount of triethylenediamine with a purity of 99% is 0.9 Kg.

Embodiment 3

[0012] Embodiment 3: The remaining steps and ingredients are the same as in Embodiment 1, except that when the temperature is 30° C., the amount of triethylenediamine with a purity of 99% is 750 Kg.

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PUM

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Abstract

A disclosed vehicle interior decorative foaming material consists of, in percent by weight, 55% of an A component and 45% of polymethylene polyphenyl polyisocyanate, wherein the A component comprises, in percent by weight, 66-68% of polyether polyol 330, 20-29% of polyether polyol 3618, 3-5% of triethanolamine, 1-2% of water, and 0.1-0.2% of triethylenediamine with the density of 99%; and polymethylene polyphenyl polyisocyanate is the B component. By employing the foaming material provided by the technical scheme of the invention, the cost is saved, the processing technology is simplified, the foam uniformity is relatively good, cavitation foams do not exist, and cast products are high in qualified rate.

Description

technical field [0001] The invention relates to an automobile interior decoration material, in particular to a foaming material for an interior decoration intermediate layer. Background technique [0002] Automotive Interior (AutomotiveInterior) mainly refers to the automotive products used in the interior modification of the car, involving all aspects of the car interior, such as car sun protection film, car grip gloves, car floor mats, car anti-slip mats, seat cushions, floor mats, instrument panels, etc. etc. are automotive interior products. The automotive interior system is an important part of the car body. Taking the instrument panel as an example, the instrument panel generally includes a body frame, a middle layer of foam material and a skin. [0003] The production of the intermediate layer foaming material has always been a difficult problem in the industry. The hardness and foaming thickness of the existing foaming materials have been criticized by manufacturers...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G18/66C08G18/48C08G18/32C08G18/20C08G101/00
CPCC08G18/2063C08G18/3281C08G18/6688C08G18/7664C08G2110/0083
Inventor 唐欢
Owner 江苏新昌汽车部件有限公司
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