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Water-based adhesive for interior trim of automobile

A technology for automotive interior decoration and adhesives, applied in adhesives, adhesive types, rosin adhesives, etc., can solve the problems of high cost, low initial adhesion, and low cost of water-based polyurethane adhesives, and achieve Significant economic and social benefits, fast production, flexible and convenient use

Active Publication Date: 2015-01-21
河南瑞朗达新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, water-based polyurethane adhesives are not widely used due to their high cost; water-based polyacrylate adhesives are low in cost, and there are one-component acrylic adhesives and two-component acrylic adhesives. One-component acrylic adhesives are more viscous than polyurethane dispersions Bulk and solvent-based products are small and limited in application. Two-component acrylic adhesives have high initial viscosity, strict requirements on the ratio of the two components, special glue coating equipment is required, and management standards are high. At present, there are few domestic applications; domestic water-based chlorine Butadiene rubber cures slowly and has low initial adhesion, which cannot meet the needs of automobile assembly line production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The water-based adhesive is made from the following raw materials in parts by weight:

[0036] Neoprene latex 90 parts

[0037] Rosin resin emulsion 7 parts

[0038] Water-based thickener (hydroxymethyl cellulose) 0.3 parts

[0039] Water-based crosslinking agent (glycidyl ether oxypropylmethyl diethoxysilane) 0.2 parts

[0040] PH value adjusting agent (acetic acid) 0.15 parts

[0041] Diffusion agent (naphthalenesulfonic acid formaldehyde condensate sodium salt) 0.1 parts

[0042] 3.5 parts of deionized water

[0043] It is prepared using the following steps:

[0044] 1. At room temperature, weigh the chain extender, pH adjuster, and water-based crosslinking agent according to the above ratio, add them into deionized water, and stir at a speed of 500 rpm for 15 minutes to obtain a pH adjustment solution.

[0045] 2. At room temperature, add neoprene latex and rosin resin emulsion into the reaction kettle together, and stir for 20 minutes at a speed of 300 rpm to...

Embodiment 2

[0049] The water-based adhesive is made from the following raw materials in parts by weight:

[0050] Neoprene latex 75 parts

[0051] Rosin resin emulsion and acrylic emulsion 15 parts

[0052] Water-based thickener (casein) 0.8 parts

[0053] Water-based crosslinking agent (glycidyl ether oxypropylmethyl diethoxysilane) 0.5 parts

[0054] PH value adjuster (acetic acid) 0.3 parts

[0055] Diffusion agent (naphthalenesulfonic acid formaldehyde condensate sodium salt) 0.1 parts

[0056] 8 parts deionized water

[0057] It is prepared according to the method described in Example 1, and its viscosity is measured as: 430mPa.s.

Embodiment 3

[0059] The water-based adhesive is made from the following raw materials in parts by weight:

[0060] Neoprene latex 80 parts

[0061] Hydrogenated rosin resin emulsion and styrene-acrylic emulsion 10 parts

[0062] Water-based thickener (hydroxymethyl cellulose) 0.5 parts

[0063] Water-based crosslinking agent (glycidyl ether oxypropylmethyl diethoxysilane) 0.3 parts

[0064] PH value adjuster (acetic acid) 0.4 parts

[0065] Diffusion agent (naphthalenesulfonic acid formaldehyde condensate sodium salt) 0.2 parts

[0066] 9 parts deionized water

[0067] It is prepared according to the method described in Example 1, and its viscosity is measured as: 580mPa.s.

[0068] Compared with the existing commercially available water-based neoprene, the use effect of the automotive interior bonding water-based adhesive of the present invention is as follows:

[0069] performance item Adhesive of the present invention Commercially available water-based neoprene Pos...

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Abstract

The invention belongs to the technical field of synthetic rubber adhesive and discloses a water-based adhesive for the interior trim of an automobile and a method for preparing the water-based adhesive. The water-based adhesive is prepared from the following raw materials by weight: 65-90 parts of neoprene latex, 5-25 parts of polymer emulsion, 0.2-0.8 part of aqueous thickener, 0.1-0.5 part of an aqueous cross-linking agent, 0.1-0.5 part of a pH value adjusting agent, 0.05-0.2 part of a dispersing agent and 3-10 parts of deionized water. The water-based adhesive does not contain the organic solvent, the metal oxide, the antioxidant, the filler and the like, is the one-component adhesive, can be used directly, has moderate hardness, can be coated by brushing and spraying, has high curing speed and high initial adhesion and can well meet the quick production needs of the automobile assembly line.

Description

technical field [0001] The invention belongs to the technical field of synthetic rubber adhesives, and in particular relates to a water-based adhesive used for bonding automobile interior decorations and a preparation method thereof. Background technique [0002] At present, solvent-based adhesives are generally used for the bonding of domestic automotive interior parts, mainly neoprene and SBS adhesives. This type of adhesive has good initial tack, flexible adhesive layer, and high normal bonding strength. It is suitable for automobile assembly line production, but the adhesive contains toxic solvents (such as toluene), which pose a great threat to the health of construction workers and seriously pollute the environment. In addition, for cars decorated with solvent-based adhesives, the organic solvent trapped in them will be released slowly for a long time after decoration, which will affect the health of drivers and passengers, and also affect the quality and sales of cars...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J111/02C09J193/04C09J125/14C09J133/00C09J11/08C09J11/06
Inventor 亢建华朱茜刘闪闪
Owner 河南瑞朗达新材料有限公司
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