Single-component low temperature self-crossing emulsion adhesive for paper and plastic compounds and preparing method thereof

A self-crosslinking emulsion, paper-plastic composite technology, applied in the direction of adhesive types, adhesive additives, ester copolymer adhesives, etc. High strength, good water and heat resistance, good affinity

Inactive Publication Date: 2010-12-29
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In CN 101597355, an external aziridine is used to react with carboxyl groups to realize crosslinking; the crosslinking agent containing NCO groups can react with the active hydrogen in the acrylate emulsion, but the two-component packaging form is not convenient for storage and transportation (CN 101580682, CN1517422)

Method used

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  • Single-component low temperature self-crossing emulsion adhesive for paper and plastic compounds and preparing method thereof
  • Single-component low temperature self-crossing emulsion adhesive for paper and plastic compounds and preparing method thereof
  • Single-component low temperature self-crossing emulsion adhesive for paper and plastic compounds and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Table 1 Monomer formula of paper-plastic composite adhesive emulsion E1 (unit: g)

[0057]

[0058] Note: HA refers to the mixture of glycidyl methacrylate and acrylamide with a mass ratio of 1:1

[0059] resolve resolution:

[0060] Preparation of nuclear emulsion: first pre-emulsify 30 g of deionized water, 0.3 g of nonylphenol polyoxyethylene (10) ether ester disodium sulfosuccinate (MS21), and core layer monomer phase I to obtain pre-emulsion A; 0.4g of ammonium persulfate (APS) is prepared into an initiator solution D (APS solution D) with a concentration of 3% by weight; 0.15g of diacid block is prepared into an aqueous solution E with a concentration of 10 to 20% by weight. Add 15g of deionized water, 0.3g of buffering agent sodium bicarbonate, and 10% of the weight of APS aqueous solution D to the four-necked flask to prepare the base material, raise the temperature to 78°C, add 3% of the total weight of the pre-emulsion A of 3% by weight to react to form S...

Embodiment 2

[0066] Table 2 Monomer formula of paper-plastic composite adhesive emulsion E2 (unit: g)

[0067]

[0068] resolve resolution:

[0069] Preparation of nuclear emulsion: first pre-emulsify 32g deionized water, 0.25g ethoxylated alkyl ether ammonium sulfate (CO-436), and nuclear layer monomer phase I to obtain pre-emulsion A; take 2,2-azo 0.4 g of diisobutylamidine dihydrochloride ammonium (V50) was used to prepare an aqueous solution D with a concentration of 3% by weight; and 0.15 g of sodium bisulfite was prepared to prepare an aqueous solution E with a concentration of 10-20% by weight. Add 12g deionized water, 0.3g buffering agent sodium bicarbonate, and 10% of the total weight of APS aqueous solution D to the four-necked flask to prepare the base material, raise the temperature to 75°C, add 8% of the total weight of pre-emulsion A to react to form a seed emulsion; Raise the temperature to 78°C, start to add the remaining pre-emulsion A dropwise, and simultaneously add ...

Embodiment 3

[0076] Table 3 Monomer formula of paper-plastic composite adhesive emulsion E3 (unit: g)

[0077]

[0078] resolve resolution:

[0079] Preparation of nuclear emulsion: first pre-emulsify 32g deionized water, 0.3g disodium ethoxysulfosuccinate, and nuclear layer monomer phase I to obtain pre-emulsion A; take 0.4g ammonium persulfate (APS) to prepare the weight percentage The concentration is 3% initiator aqueous solution D; take 0.15g Diaobai block to prepare aqueous solution E with a concentration of 10-20% by weight. Add 18g of deionized water, 0.3g of buffering agent sodium bicarbonate, and 10% of the total weight of APS aqueous solution D to the four-necked flask to prepare the base material, raise the temperature to 80°C, and add 8% of the total weight of pre-emulsion A to react to form a seed emulsion; Raise the temperature to 82°C, start to add the remaining pre-emulsion A dropwise, and simultaneously add 30% of the total weight of the APS aqueous solution D dropwis...

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Abstract

The invention discloses a single-component low temperature self-crossing emulsion adhesive for paper and plastic compounds and a preparing method thereof. The raw materials of the self-crossing emulsion adhesive comprise the following components in part by weight: 100-150 parts of de-ionized water, 0.8-3.0 parts of emulsifier, 20-40 parts of nuclear layer monomer, 30-50 parts of interlayer monomer, 20-40 parts of shell layer monomer, and 0.2-0.6 part of initiator. The invention uses a small amount of anionic emulsifier to prepare nuclear emulsion, uses polymerisable emulsifier to prepare interlayer and shell layer pre-emulsion, and adopts semi-continuous seeded low emulsion polymerization process to prepare emulsion particles that have a three-layer core-shell microstructure to obtain the exquisite and stable emulsion. The product has no organic solvent, and does not release methanal, contains no APEO and no phthalate; the film coating has high transparency, high water resistance and high heat and humidity resistance; and the emulsion adhesive is applied to plastic and paper compounds, has high adhesive strength, peel strength and permanent adhesion, is also compatible to oil and ink and has high oil/ink transferring rate.

Description

technical field [0001] The invention relates to a polyacrylate adhesive emulsion for paper-plastic composite, in particular to a single-component low-temperature self-crosslinking emulsion adhesive for paper-plastic composite and a preparation method thereof. The adhesive is applied to plastic films and paper printed matter composite bonding. Background technique [0002] Paper-plastic composite is to use adhesive to combine polyethylene, polypropylene (BOPP) or PET film with paper printed matter, so that the surface of printed matter is smoother and brighter, full of three-dimensional effect, and at the same time, it also plays the role of moisture-proof, anti-fouling, anti-counterfeiting, and folding resistance. It is widely used in packaging materials, hardcover books, decorative building materials, etc. Practical applications require paper-plastic laminating adhesives to have good adhesion to polar paper surfaces and non-polar low-surface-energy plastic film surfaces, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/08C09J11/06C08F220/18C08F2/24C08F2/26
Inventor 涂伟萍郑智贤胡剑青王锋
Owner SOUTH CHINA UNIV OF TECH
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