Water-based adhesive for dry-type composite of plastic films and preparation method thereof

A technology of dry compounding and plastic film, applied in adhesive types, ester copolymer adhesives, acid copolymer adhesives, etc., which can solve the problems of easy disintegration of polymer chains, low production efficiency, and high energy consumption , to achieve large particle size distribution, improve temperature resistance, and high adhesive strength

Active Publication Date: 2019-06-04
DONGGUAN STAR COSM POLYMER
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If it is necessary to further expand its application field, the acrylate emulsion adhesives currently on the market for dry lamination of plastic films need to be further improved to overcome some of the following problems: (1) Most of them are synthesized by thermally induced polymerization, and their reaction temperature is relatively high , generally 80-90°C, the reaction heat generated during the polymerization process cannot be discharged in time, and the reaction will automatically accelerate, so that the obtained polymer chains are easily disintegrated to form polymer branched chains, and the bonding strength to th

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Water-based adhesive for dry-type composite of plastic films and preparation method thereof
  • Water-based adhesive for dry-type composite of plastic films and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A water-based adhesive for dry compounding of plastic films in this embodiment is prepared by the following steps (the following components are all in parts by weight):

[0030] Step S1, add 20 parts of deionized water, 1.0 part of buffer sodium bicarbonate and 0.8 part of sodium persulfate oxidant into the reaction kettle, stir evenly to obtain the bottom liquid;

[0031] Step S2, take 25 parts of deionized water, 0.5 parts of polyether ammonium sulfate V-10S, 50 parts of conventional acrylate monomer mixture and 4 parts of tetrahydrofuryl methacrylate for pre-emulsification to obtain monomer pre-emulsion, and then add 0.4 Parts of high molecular weight reducing agent, stirred evenly to obtain monomer drop solution I;

[0032] Step S3, take 15 parts of deionized water, 0.5 parts of fine particle size emulsifier, 35 parts of conventional acrylate monomer mixture and 3 parts of tetrahydrofuryl methacrylate for pre-emulsification to obtain monomer pre-emulsion, and then a...

Embodiment 2

[0041] A water-based adhesive for dry compounding of plastic films in this embodiment is prepared by the following steps (the following components are all in parts by weight):

[0042] Step S1, add 30 parts of deionized water, 0.5 parts of buffer ammonium bicarbonate and 1.2 parts of ammonium persulfate oxidant into the reaction kettle, and stir evenly to obtain the bottom liquid;

[0043] Step S2, take 30 parts of deionized water, 1.0 parts of allyloxy fatty alcohol oxyethylene ether ammonium sulfate SR-10, 60 parts of conventional acrylate monomer mixture and 8 parts of tetrahydrofuryl acrylate for pre-emulsification to obtain monomer pre- Emulsion, then add 0.8 parts of high molecular weight reducing agent, stir evenly to obtain monomer drop solution I;

[0044] Step S3, take 20 parts of deionized water, 1.0 part of fine particle size emulsifier, 40 parts of conventional acrylate monomer mixture and 5 parts of tetrahydrofuryl acrylate for pre-emulsification to obtain a mono...

Embodiment 3

[0053] A water-based adhesive for dry compounding of plastic films in this embodiment is prepared by the following steps (the following components are all in parts by weight):

[0054] Step S1, add 27 parts of deionized water, 0.8 parts of buffer agent sodium dihydrogen phosphate and 1.0 part of potassium persulfate oxidizing agent into the reaction kettle, stir evenly to obtain the bottom liquid;

[0055] Step S2, taking 28 parts of deionized water, 0.9 parts of double bond-containing dialkyl sulfosuccinate M-30S, 57 parts of conventional acrylate monomer mixture and 6 parts of trimethylolpropane formal acrylate Pre-emulsify to obtain a monomer pre-emulsion, then add 0.6 parts of a polymer-type reducing agent, and stir evenly to obtain a monomer drop solution I;

[0056] Step S3, take 18 parts of deionized water, 0.7 parts of fine particle size emulsifier, 38 parts of conventional acrylate monomer mixture and 4 parts of trimethylolpropane formal acrylate for pre-emulsificatio...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to the technical field of water-based adhesives, in particular to a water-based adhesive for dry-type composite of plastic films and a preparation method thereof, and the water-based adhesive is prepared from the following components in parts by weight: 60-80 parts of deionized water, 0.5-1.0 part of a buffering agent, 0.8-1.2 parts of a persulfate oxidizing agent, 0.5-1.0 part of an anionic polymerizable emulsifier, 85-100 parts of a conventional acrylate monomer mixture, 7-13 parts of a heteroalicyclic acrylate monomer, 0.65-1.3 parts of a high-molecular type reducing agent, 0.5-1.0 part of a fine particle size emulsifier, 1.2-1.5 parts of a wetting agent and 0.5-0.8 part of a defoaming agent through a specific process. The water-based adhesive is more similar to asolvent-type polyurethane adhesive in the performance, is strong in plastic film adhesive force, good in temperature resistance and water resistance, and high in coating and drying speed, the coating4-cup viscosity is 12-18 seconds, and the solid content reaches 55-60%.

Description

technical field [0001] The invention relates to the technical field of water-based adhesives, in particular to a water-based adhesive for dry compounding of plastic films and a preparation method thereof. Background technique [0002] Plastic film dry compounding is the most commonly used process for preparing flexible packaging plastic bags in the fields of food, medicine, daily necessities, and electronic products. It is to coat a layer of adhesive on the surface of the printed plastic film and dry the adhesive through a drying tunnel. After that, it is bonded with another plastic film, and after hot pressing, it is wound up to obtain a plastic dry composite film, and then it is prepared into a flexible packaging plastic bag through slitting and bag making processes. At present, the market-leading product of adhesives for dry lamination of plastic films in my country is solvent-based polyurethane adhesives, which need to be compounded with about 70% ethyl acetate or toluen...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C09J133/08C09J133/14C09J133/02C08F220/18C08F220/20C08F220/06C08F220/14C08F220/32C08F212/08C08F222/14C08F220/36C08F4/40C08F2/26
Inventor 胡剑青胡浪浪熊新民赖淦荷
Owner DONGGUAN STAR COSM POLYMER
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap