Water-based adhesive for deep embossed paper-plastic compounding, and preparation method thereof

A paper-plastic composite and adhesive technology, which is applied in the direction of adhesive type, ester copolymer adhesive, etc., can solve the problems of aziridine curing agent toxicity, inconvenient application, waste, etc., and achieve enhanced hydrogen bond intermolecular interaction Strong force, strong cohesion, and strong initial tack

Active Publication Date: 2019-06-18
DONGGUAN STAR COSM POLYMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the introduction of multi-component aziridine curing agent can enhance the bonding strength of acrylate emulsion adhesives and meet the weather-resistant storage of deep embossed paper-plastic composites, there are also some disadvantages: 1) Adding the curing agent before use requires sufficient stirring, which is not suitable for application Convenient; 2) The adhesive has a certain pot life after adding the curing agent, and it is easy to cause waste if it is not used up on time; 3) The aziridine curing agent has certain toxicity

Method used

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  • Water-based adhesive for deep embossed paper-plastic compounding, and preparation method thereof
  • Water-based adhesive for deep embossed paper-plastic compounding, and preparation method thereof
  • Water-based adhesive for deep embossed paper-plastic compounding, and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032] A kind of deep embossed paper-plastic composite water-based adhesive of this embodiment is prepared by the following steps (the following components are all calculated in parts by weight):

[0033] Step S1, take 20 parts of deionized water, 1.0 parts of reactive emulsifier, 45 parts of acrylate monomer mixture, 5 parts of long carbon chain acrylate monomer and 4 parts of hydroxyethyl acryloyl urea monomer for pre-emulsification to obtain a single Body pre-emulsion, then add 0.2 parts of initiator, stir evenly to obtain monomer dripping solution;

[0034] Step S2, adding 30 parts of deionized water, 0.2 parts of reactive emulsifier and 0.15 parts of initiator into the reactor and stirring evenly to obtain the bottom liquid;

[0035] Step S3, raise the temperature of the bottom liquid to 75°C, start to drop the monomer dripping liquid into the bottom liquid first, control 4 minutes to drop 1 / 10 of the total amount of the monomer dripping liquid, and then keep the temperat...

Embodiment 2

[0046] A kind of deep embossed paper-plastic composite water-based adhesive of this embodiment is prepared by the following steps (the following components are all calculated in parts by weight):

[0047] Step S1, pre-emulsify 30 parts of deionized water, 1.5 parts of reactive emulsifier, 50 parts of acrylate monomer mixture, 10 parts of long-chain acrylate monomer and 8 parts of hydroxyethyl acryloyl urea monomer to obtain a single Body pre-emulsion, then add 0.5 part of initiator, stir to obtain monomer dripping solution;

[0048] Step S2, adding 40 parts of deionized water, 0.5 part of reactive emulsifier and 0.1 part of initiator into the reactor and stirring evenly to obtain the bottom liquid;

[0049] Step S3, raise the temperature of the bottom liquid to 70°C, start to drop the monomer dripping liquid into the bottom liquid first, control 6 minutes to drop 1 / 10 of the total amount of the monomer dripping liquid, and then keep the temperature for 25 minutes, Prepare see...

Embodiment 3

[0060] A kind of deep embossed paper-plastic composite water-based adhesive of this embodiment is prepared by the following steps (the following components are all calculated in parts by weight):

[0061] Step S1, take 26 parts of deionized water, 0.5 parts of reactive emulsifier, 48 parts of acrylate monomer mixture, 7 parts of long carbon chain acrylate monomer and 6 parts of hydroxyethyl acryloyl urea monomer for pre-emulsification to obtain a single Body pre-emulsion, then add 0.3 part of initiator, stir evenly to obtain monomer dripping solution;

[0062] Step S2, adding 35 parts of deionized water, 0.4 parts of reactive emulsifier and 0.12 parts of initiator into the reactor and stirring evenly to obtain the bottom liquid;

[0063] Step S3, raise the temperature of the bottom liquid to 72°C, start to drop the monomer dripping solution into the bottom liquid first, control 5 minutes to drop 1 / 10 of the total amount of the monomer dropping liquid, and then keep the reactio...

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Abstract

The invention relates to the technical field of water-based adhesives, and concretely relates to a water-based adhesive for deep embossed paper-plastic compounding, and a preparation method thereof. The preparation method of the water-based adhesive comprises the following steps: preparing a monomer drop-by-drop addition solution from, by weight, 20-33 parts of deionized water, 0.4-1.5 parts of areactive emulsifier, 40-50 parts of an acrylate monomer mixture, 5-15 parts of a long carbon chain acrylate monomer, 2-8 parts of hydroxyethyl acryloyl urea and 0.2-0.6 part of an initiator; preparinga kettle bottom solution from 30-42 parts of deionized water, 0.1-0.5 part of the reactive emulsifier and 0.1-0.2 part of the initiator; and dropwise adding a part of the monomer drop-by-drop addition solution to the kettle bottom solution to prepare a seed emulsion, then dropwise adding the remaining monomer drop-by-drop addition solution, and carrying out a reaction under specific process conditions to prepare the water-based adhesive. The water-based adhesive can be stored at a high temperature of 50 DEG C and a high relative humidity of 85% for 120 h without generating white spots, foaming or degumming after being applied to paper-plastic compounding and deep embossing.

Description

technical field [0001] The invention relates to the technical field of water-based adhesives, in particular to a deep-embossed paper-plastic composite water-based adhesive and a preparation method thereof. Background technique [0002] The paper-plastic composite process is a post-press processing process that uses adhesives to coat BOPP or PET films, and then composites with paper prints. It combines the advantages of paper and plastics to make the surface of the prints brighter and smoother, and the color is more vivid and full of three-dimensional effect. At the same time, it also plays the role of moisture-proof, anti-fouling, anti-counterfeiting, folding and wear-resistant, and is widely used in decorative building materials, packaging materials, hardcover books, product advertisements or manuals, etc. [0003] With the further development of the economy, some packaging products often need to apply deep embossing technology after paper-plastic composite. Deep embossing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/10C09J133/12C08F220/18C08F220/14C08F220/06C08F216/14C08F228/02C08F220/60C08F2/26
Inventor 胡剑青蒋颜平黄志亮胡浪浪赖淦荷
Owner DONGGUAN STAR COSM POLYMER
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