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Water-based binder for automotive interior parts and preparation method of water-based binder

An automotive interior parts, water-based technology, applied in the direction of adhesives, etc., can solve the problems of insufficient bonding strength, irritating odor, poor temperature resistance, etc., and achieve good adhesion, high peel strength, non-corrosiveness. Effect

Inactive Publication Date: 2015-01-07
吉林省正奇科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the toxic raw materials used in the existing acrylic adhesives, such as toxic solvents, curing agents, and other additives, have brought se

Method used

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  • Water-based binder for automotive interior parts and preparation method of water-based binder
  • Water-based binder for automotive interior parts and preparation method of water-based binder
  • Water-based binder for automotive interior parts and preparation method of water-based binder

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0046] A preparation method of water-based adhesive for automotive interior parts, characterized in that, comprising the following steps:

[0047] a. Take 36-72 parts of distillation, 4.6-32 parts of soft monomers, 6.5-35 parts of hard monomers, 0.5-5 parts of functional monomers and 0.9-5 parts of emulsifiers according to the mass parts, and then put them into the mixture with stirring Pre-emulsification is carried out in the flask of the device, and the mixture is prepared for use;

[0048] b. Add 4-8 parts of distilled water, 0.4-3 parts of soft monomers, 0.5-3 parts of hard monomers, and 0.5-5 parts of functional monomers to the four-necked flask equipped with agitator, thermometer, reflux condenser and feeding device parts, 0.1-3 parts of emulsifier and 0.1-0.5 parts of buffering agent, heated with water bath, when the temperature rises to 70 degrees, add 0.01-0.4 parts of initiator to initiate the reaction to obtain the latex particles required for the reaction;

[0049...

Example Embodiment

[0051] Example 1

[0052] a. Take 72ml of distilled water, 4.6g of ethyl acrylate, 6.5g of methyl methacrylate, 3.8g of hydroxyethyl acrylate, emulsifier by nonylphenol polyoxyethylene ether: sodium lauryl sulfate: N-dodecane dimethylamine=1:0.5:0.5 to prepare 2.6g of composite emulsifier, and sequentially added to a flask equipped with a stirrer for pre-emulsification to prepare a mixture for later use;

[0053] b. Add 8ml distilled water, 0.5g ethyl acrylate, 0.7g methyl methacrylate, 0.5g hydroxyethyl acrylate, 0.3g compound emulsification to the four-necked flask equipped with a stirrer, thermometer, reflux condenser and feeding device agent and 0.1g sodium hydrogen phosphate, heated in a water bath, when the temperature rose to 70 degrees, 0.01g potassium persulfate was added to initiate the reaction to obtain the latex seeds required for the reaction;

[0054] c, then slowly drip the mixture prepared through pre-emulsification and the remaining 0.09g potassium persulfat...

Example Embodiment

[0056] Example 2

[0057] a Take 59ml of distilled water, 5g of ethyl acrylate, 5g of butyl acrylate, 7.5g of methyl acrylate, 7.5g of styrene, 2.35g of acrylic acid, and emulsifier according to nonylphenol polyoxyethylene ether: sodium dodecylbenzenesulfonate: N-dodecyl dimethylamine=1.6:0.8:0.8 is made into 2g of composite emulsifier, which is sequentially added to a flask equipped with a stirrer for pre-emulsification, and a mixture is prepared for subsequent use;

[0058] b. Add 6.7ml distilled water, 0.55g ethyl acrylate, 0.55g butyl acrylate, 0.85g methyl acrylate, 0.85g styrene, 0.5 g acrylic acid, 0.15g composite emulsifier and 0.2g sodium bicarbonate, heated in a water bath, when the temperature rose to 70 degrees, 0.05g ammonium persulfate was added to initiate the reaction to obtain the latex seeds required for the reaction;

[0059] c, then, slowly dropwise add the mixture prepared by pre-emulsification and the remaining 0.45g of ammonium persulfate, the reaction ...

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Abstract

The invention relates to a water-based binder for automotive interior parts and a preparation method of the water-based binder. The water-based binder is prepared from a soft monomer, a hard monomer, a functional monomer, an emulsifier, a buffer agent, an initiator, a pH modifier and distilled water in a polymerization manner at a certain temperature according to a certain ratio. With water as a medium, the water-based binder is safe and environment-friendly, TVOC of the water-based binder is less than 50mu g C/g, the formaldehyde emission is less than 1mg/kg, and is far lower than that of the national standard; the water-based binder is good in binding power on various interior materials such as non-woven fabrics, and high in peel strength, is a single-component binder, is convenient to use without adding a curing agent, can be directly used, can also be used step by step, is free of stringent requirements on initial drying temperature and secondary activation temperature, and is free of toxicity, safe and sanitary in the use procedure, free of corrosivity on human skin, simple in preparation process, and low in preparation cost due to one-time polymerization; the bonding strength of the decorative fabric and a substrate is 299N/5cm in a delivery condition, is 174N/5cm after resisting heat, is 98N/5cm after resisting moisture, and is 82N/5cm after resisting cold; the total haze value of an adhesive film is 1.7mg; and the odor of the adhesive film is 2.

Description

Technical field: [0001] The invention relates to an adhesive, especially an adhesive used in the bonding process of automobile interior decoration, in particular to a water-based acrylic adhesive for automobile interior decoration, and also to a water-based acrylic ester adhesive for automobile interior decoration and a preparation method. Background technique: [0002] At present, flammable, toxic, and environmentally polluting solvent-based adhesives, such as neoprene, are mostly used for bonding automotive interiors in China. Solvent-based adhesives not only cause a serious waste of resources, seriously pollute the environment, but also pose a great threat to the health of construction workers. With the improvement of environmental regulations and the enhancement of people's awareness of environmental protection, solvent-based adhesives will gradually be replaced by environmentally friendly water-based adhesives, especially the promotion and application of water-based aut...

Claims

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Application Information

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IPC IPC(8): C09J133/00C08F220/14C08F220/18C08F220/28C08F220/06C08F212/08C08F2/30C08F2/26
Inventor 王义奎汪宏伟
Owner 吉林省正奇科技股份有限公司
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