Environment-friendly water-based laminating adhesive as well as preparation method and bonding technology thereof

An environment-friendly, adhesive technology, applied in adhesive heating bonding methods, adhesives, mineral oil hydrocarbon copolymer adhesives, etc., can solve the problem of restricting the use of water-based adhesives, which cannot be used by ordinary water-based adhesives Solve problems such as adhesion and slow volatile solvents to achieve good adhesion and peel strength, large market application value, and low cost

Inactive Publication Date: 2018-07-13
XIANGTAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] From the perspective of the current development of adhesives, the performance of water-based adhesives is comparable to that of solvent-based adhesives, but the latent heat of water evaporation in water-based adhesives is larger, the volatility is much slower than that of solvents, and the surface tension of water is relatively large. , also limits the use of water-based adhesives
At the same time, the surface energy of EVA and TPE foam materials is relatively low, which are difficult to bond substrates. Ordinary water-based adhesives cannot provide good adhesion. If the water-based adhesive is bonded according to the solvent-based bonding process, it cannot be replaced The effect of solvent

Method used

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  • Environment-friendly water-based laminating adhesive as well as preparation method and bonding technology thereof
  • Environment-friendly water-based laminating adhesive as well as preparation method and bonding technology thereof
  • Environment-friendly water-based laminating adhesive as well as preparation method and bonding technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1: Add 67 parts of ethylene-vinyl acetate emulsion (model DA-102H) and 23 parts of aqueous terpene phenolic dispersion into a there-necked flask equipped with a stirrer, stir evenly, and add 9 parts of petroleum resin , add 1 part of defoamer and thickener mixture, stir for 15 minutes and mix well, then take it out. Apply the prepared adhesive directly on the EVA and TPE foam boards, then place it in an oven at 60°C for 2 minutes, take it out, apply cloth, pressurize, place it in an oven at 75°C after pressurization, and heat it for 5 minutes , take out the pressurizing device, and dry at 75°C until the surface of the material is dry.

Embodiment 2

[0043] Example 2: Add 69 parts of ethylene-vinyl acetate emulsion (model is DA-102H) weighed in the there-necked flask equipped with a stirrer, 20 parts of water-based terpene phenolic dispersion, stir evenly, add 10 parts of petroleum resin , add 1 part of defoamer and thickener mixture, stir for 15 minutes and mix well, then take it out. Apply the prepared adhesive directly on the EVA and TPE foam boards, then place it in an oven at 60°C for 2 minutes, take it out, apply cloth, pressurize, place it in an oven at 75°C after pressurization, and heat it for 5 minutes , take out the pressurizing device, and dry at 75°C until the surface of the material is dry.

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Abstract

The invention discloses an environment-friendly water-based laminating adhesive as well as a preparation method and a bonding technology thereof. The environment-friendly water-based laminating adhesive is prepared from the following four components: vinyl-vinyl acetate emulsion, waterborne terpene phenolic dispersion, petroleum resin and a mixture of a defoaming agent and a thickening agent. Thewater-based laminating adhesive with the characteristics of no solvent, high solid content, low cost, high bonding strength and excellent water resistance is prepared by using the vinyl-vinyl acetateemulsion without volatile organic gas, taking environment-friendly raw materials such as the waterborne terpene phenolic dispersion with low VOC (Volatile Organic Compound) content and the petroleum resin as well as a simple synthesis method. According to the bonding technology of the water-based laminating adhesive disclosed by the invention, the adhesive is applied to a low surface energy foamedboard by performing the steps of gluing, pre-drying, laminating, drying and the like; the environment-friendly water-based laminating adhesive has the properties of high adhesion, high peel strengthand high drying rate.

Description

technical field [0001] The invention relates to the technical field of lamination adhesives, in particular to an environment-friendly water-based lamination adhesive, a preparation method and a bonding process thereof. Background technique [0002] In April 2017, the Ministry of Environmental Protection announced the "Emission Standards for Air Pollutants in the Coatings, Inks and Adhesives Industry (Draft for Comment)" (Huanban Daqihan [2017] No. 565), which stipulates that the VOCs emission standard for the adhesive industry is 80g / L. The types of adhesives include solvent-based, water-based adhesives, and hot-melt adhesives. Solvent-based adhesives are no longer difficult to apply to increasingly stringent national environmental protection standards. At present, the adhesives used for EVA and TPE foam materials are mostly solvent-based adhesives, and SBS grafted solvent-based adhesives are the main ones, with a solvent content of 75-85%, which will release a large amou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J123/08C09J161/06C09J157/02C09J5/06
CPCC09J123/0853C08L2205/035C09J5/06C08L61/06C08L57/02
Inventor 吴志民朱建涛刘跃进刘信强孟田洪李程坦朱慧琳
Owner XIANGTAN UNIV
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