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Complex adhesive and preparation method thereof

A compound adhesive and compound emulsifier technology, applied in the direction of adhesive, adhesive type, ester copolymer adhesive, etc., can solve the problems of insufficient bonding strength, poor folding resistance, poor flatness, etc., and achieve easy film formation. , Excellent adhesion, good dry film flatness

Active Publication Date: 2012-07-04
上海奇想青晨新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although there are water-based composite adhesive products on the market, there are still defects such as insufficient bonding strength, poor folding resistance, poor flatness and easy wrinkling in practical applications.

Method used

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  • Complex adhesive and preparation method thereof
  • Complex adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] With the deionized water of 340 parts by weight, the composite emulsifier of 18 parts by weight (the phenol ether sulfate of 15.6 parts by weight and the alkylphenol polyoxyethylene ether of 2.4 parts by weight), the acrylic acid of 30 parts by weight, the acrylic acid of 20 parts by weight Hydroxyethyl ester, the butyl acrylate of 800 weight parts, the styrene of 150 weight parts join in the pre-emulsification tank and stir (rotating speed is 650rpm) 30 minutes, after being made into pre-emulsion, take by weighing the pre-emulsion of 203.7 weight parts as The bottom seed reaction solution is for use;

[0035] With the deionized water of 500 parts by weight, the buffering agent (ammonium bicarbonate) of 22 parts by weight, the compound emulsifier (the phenol ether sulfate of 15.6 parts by weight and the alkylphenol polyoxyethylene ether of 2.4 parts by weight) of 18 parts by weight Add in the polymerization reactor and heat up to 86~88 ℃, drop into 203.7 parts by weight...

Embodiment 2

[0040] With the deionized water of 340 parts by weight, the composite emulsifier of 18 parts by weight (the phenol ether sulfate of 15.6 parts by weight and the alkylphenol polyoxyethylene ether of 2.4 parts by weight), the acrylic acid of 30 parts by weight, the acrylic acid of 20 parts by weight Hydroxyethyl ester, the butyl acrylate of 850 weight parts, the methyl methacrylate of 100 weight parts join in the pre-emulsification tank and stir (rotating speed is 650rpm) 30 minutes, after being made into pre-emulsion, weigh 203.7 weight parts of pre-emulsification The emulsion is used as the bottom seed reaction solution for subsequent use;

[0041] With the deionized water of 500 parts by weight, the buffering agent (sodium bicarbonate) of 22 parts by weight, the compound emulsifier (the phenol ether sulfate of 15.6 parts by weight and the alkylphenol polyoxyethylene ether of 2.4 parts by weight) of 18 parts by weight Add to the reaction kettle and heat up to 86-88°C, drop 203...

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Abstract

The invention relates to complex adhesive, which is prepared by polymerizing the following raw materials: hard monomer, soft monomer, functional monomer, compound emulsifier, pH buffer, initiator, functional additive, viscosity regulator and de-ionized water. The invention further provides a preparation method for the complex adhesive. Because of adopting aqueous medium, the complex adhesive of the invention has no pollution and removes damages on production staff and users by harmful organic solvent, and has no formaldehyde generated, so as to fully meet the demands in food and tobacco industries; semitransparent water-emulsion adhesives, which have particle diameters in double-peak distribution and reach nanoscale, are prepared by the free radical emulsion conjugation reaction of a special process. With good leveling, easy film formation and good dry film flatness, the semitransparent water-emulsion adhesives can permeate into card paper well and have excellent cohesive force with base material. The cohesive force and folding resistance of the adhesives and the base material can be greatly improved by introducing functional hydroxyl and carboxyl groups. Good leveling is achieved and composite flatness is improved by adding different aqueous additives.

Description

technical field [0001] The invention belongs to the field of plastic laminating glue for cold stickers, in particular to a PET (polyethylene terephthalate, hereinafter referred to as PET) or BOPP (biaxially oriented polypropylene film, hereinafter referred to as BOPP) aluminized film and Cardboard compound glue and preparation method thereof. Background technique [0002] Vacuum aluminized film packaging material is a high-grade packaging material, which is widely used in exquisite packaging of tobacco, wine, bottle stickers, tea, food, cosmetics, daily chemicals, department stores, gifts, handicrafts and other products. Water-based aluminized film and cardboard composite adhesive (commonly known as composite glue) is an adhesive used for laminating aluminized film (BOPP or PET aluminized film) and cardboard. The typical process is to wet the non-aluminized surface of the film with cardboard Composite, vacuum aluminized film packaging material after drying process. [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/08C09J125/06C09J133/12C09J133/02C09J133/14C09J7/00
Inventor 黄敏
Owner 上海奇想青晨新材料科技股份有限公司
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