Automobile ceiling and manufacturing method thereof

A technology for automobile roofs and manufacturing methods, applied in chemical instruments and methods, vehicle parts, lamination, etc., can solve problems such as difficult control of foaming uniformity, uneven density of roof substrates, high total VOC content, etc. To achieve the effect of keeping the air fresh, preventing the detachment between layers, and reducing the VOC value

Active Publication Date: 2019-03-26
天津华翔车顶系统有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the existing car top spray has the functions of sound insulation, sound absorption and heat insulation, because of the use of polyurethane foam, on the one hand, the VOC emission of polyurethane is relatively high, especially the detected content of acetaldehyde is usually 11 μg / m2, when polyurethane foam After being combined with other materials to form the top plate base material, its acetaldehyde emission cannot be effectively controlled, resulting in a high total VOC content of automotive roof products. In addition, during the preparation process of polyurethane, due to the uniform foaming of the foam material solution The density is not easy to control, which will make the density of the ceiling substrate uneven

Method used

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  • Automobile ceiling and manufacturing method thereof
  • Automobile ceiling and manufacturing method thereof
  • Automobile ceiling and manufacturing method thereof

Examples

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preparation example 1

[0043] Preparation Example 1: Put 20 kg of activated carbon, 10 kg of diatomaceous earth, 5 kg of alumina and 15 kg of silica gel into the reactor, mix and stir evenly, then add 20 kg of manganese dioxide, pour 10 kg of urea solution, 20 kg Ethylenediamine solution, after mixing and stirring evenly, pour 5 kg of low-VOC adhesive and 50 kg of deionized water, and then mix and stir evenly; wherein the mass fraction of urea solution is 35%, and the mass fraction of ethylenediamine solution is 18% The low-VOC adhesive is 3M94CA transparent high-strength post-molding low-VOC adhesive.

preparation example 2

[0044] Preparation Example 2: Put 25 kg of activated carbon, 13 kg of diatomaceous earth, 8 kg of alumina and 17 kg of silica gel into the reactor, mix and stir evenly, then add 35 kg of manganese dioxide, pour 15 kg of urea solution, 25 kg Ethylenediamine solution, after mixing and stirring evenly, pour 8 kg of low-VOC adhesive and 55 kg of deionized water, and then mix and stir evenly; wherein the mass fraction of urea solution is 38%, and the mass fraction of ethylenediamine solution is 20% , The low-VOC adhesive is 3M94CA transparent high-strength post-molding low-VOC adhesive.

preparation example 3

[0045] Preparation Example 3: Put 30 kg of activated carbon, 15 kg of diatomaceous earth, 10 kg of alumina and 20 kg of silica gel into the reactor, mix and stir evenly, then add 50 kg of manganese dioxide, pour 20 kg of urea solution, 30 kg of Ethylenediamine solution, after mixing and stirring evenly, pour 10 kg of low-VOC adhesive and 60 kg of deionized water, and then mix and stir evenly; wherein the mass fraction of urea solution is 40%, and the mass fraction of ethylenediamine solution is 22% , The low-VOC adhesive is 3M94CA transparent high-strength post-molding low-VOC adhesive.

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Abstract

The invention discloses an automobile ceiling and a manufacturing method thereof. The automobile ceiling comprises a ceiling substrate layer, glass fiber felt layers located on the upper and lower sides of the ceiling substrate layer and glue layers attached to the upper and lower sides of the glass fiber felt layers, wherein the glue layer located on the side, close to the ceiling substrate, of the glass fiber felt layer is in contact with the ceiling substrate and a non-woven fabric is attached to the glue layer, far away from the ceiling substrate, of the glass fiber felt layer. The manufacturing method comprises the following steps: S1, preparing the ceiling substrate layer; S2, spraying softening water; S3, preparing an auxiliary layer; S4, pressing and forming; S5, cooling and sizing; and S6, cutting with a water knife. The automobile ceiling has the advantage of low VOC content. In addition, the preparation method has the advantages of being simple in process and capable of preparing the automobile ceiling uniform in density.

Description

technical field [0001] The invention relates to the technical field of automobile interior decoration, more specifically, it relates to an automobile roof and a manufacturing method thereof. Background technique [0002] As the current automotive interior industry tends to be more and more high-performance, environmentally friendly, low-carbon, and low-VOC, the requirements for automotive roofs are also getting higher and higher. In addition to the function of improving the interior decoration of the car, the car roof products also play the role of sound insulation, sound absorption and heat insulation. [0003] In the prior art, a Chinese utility model patent document with the authorized announcement number CN206085821B discloses a new type of automobile roof, including a roof, the lower surface of the roof is fixedly connected with a foam layer, and the bottom of the foam layer is fixedly connected There is a sound-absorbing and heat-insulating layer, the lower surface of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/08C08L83/04C08K7/06C08J9/04C08G18/48C08G18/76C09J183/04C09J11/04C09J11/06B32B17/02B32B17/12B32B17/10B32B27/28B32B5/18B32B5/24B32B7/12B32B7/08B32B33/00B32B37/12B32B37/10B32B37/06B32B43/00B60R13/08
CPCB32B5/02B32B5/022B32B5/245B32B5/26B32B7/08B32B7/12B32B33/00B32B37/06B32B37/10B32B37/12B32B43/003B32B2255/02B32B2255/20B32B2262/101B32B2266/0214B32B2307/758B32B2605/003B60R13/0815C08G18/4804C08G18/4829C08G18/7614C08G18/7671C08J9/0085C08J9/04C08J2375/08C08J2483/04C08K7/06C08K2003/2227C08K2003/2262C08L2201/10C09J11/04C09J11/06C09J183/04C08L101/00C08K13/04C08K7/26C08K7/24C08K3/22C08K5/21
Inventor 吴长胜王亚安
Owner 天津华翔车顶系统有限公司
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