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Water-based polyacrylate adhesive and preparation method thereof

A technology of polyacrylate and polyacrylate emulsion, which is applied in the direction of adhesive additives, ester copolymer adhesives, adhesive types, etc., and can solve the apparent gap of operability, wettability, and bond strength products and other problems, to achieve better wetting effect, transparent and bright appearance, excellent wetting and penetration effect

Active Publication Date: 2018-07-10
普为(上海)新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although water-based composite adhesives have made great progress, compared with solvent-based composite adhesives, the operability, wettability, bond strength and product appearance under high machine speed conditions are still inferior. certain gap

Method used

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  • Water-based polyacrylate adhesive and preparation method thereof
  • Water-based polyacrylate adhesive and preparation method thereof
  • Water-based polyacrylate adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Under the protection of nitrogen, add 360 grams of deionized water into the 2-liter reaction flask, and start heating to 85° C. 180 grams of deionized water, 10 grams of sodium dioctyl succinate sulfonate (20% solution), 486 grams of BA, 100 grams of ST, and 102 grams of MMA were mixed and stirred evenly to obtain a stable white monomer emulsion. Weigh 7.1 g of AA and 7.1 g of HEMA into a glass bottle, then add 20 g of deionized water to obtain an aqueous solution. When the temperature of the reaction flask reached 85°C, the following raw materials were added successively: a solution of 1.2 g of sodium carbonate in 10 g of deionized water, 18 g of the above-prepared monomer emulsion and 3 g of AA and HEMA in water, and 2.0 g of A solution of ammonium persulfate dissolved in 15 g of deionized water. Exotherm occurs, wait until the temperature is no longer rising, and then maintain the temperature of the reaction bottle at 85°C, add the remaining monomer emulsion within ...

Embodiment 2

[0042] Under the protection of nitrogen, add 360 grams of deionized water into the 2-liter reaction flask, and start heating to 85° C. 180 grams of deionized water, 8.5 grams of monododecyl succinate monocarboxylate sulfonate disodium (30% solution), 332 grams of BA, 300 grams of EA, 49.2 grams of ST, and 7.0 grams of MMA were mixed and stirred evenly to obtain Stable white monomer emulsion. Weigh 7.1 g of AA and 7.1 g of HEMA into a glass bottle, then add 20 g of deionized water to obtain an aqueous solution. When the temperature of the reaction flask reached 85°C, the following raw materials were added successively: a solution of 10 g of deionized water containing 1.0 g of sodium carbonate, 20 g of the above-prepared monomer emulsion and 5 g of MAA and HEMA in water, and 3.5 g of A solution of ammonium persulfate dissolved in 15 g of deionized water. Exotherm occurs, wait until the temperature is no longer rising, and then maintain the temperature of the reaction bottle at...

Embodiment 3

[0044] Under the protection of nitrogen, add 360 grams of deionized water into the 2-liter reaction flask, and start heating to 85° C. 180 grams of deionized water, 10 grams of sodium dioctyl succinate sulfonate (20% solution), 505 grams of BA, 100 grams of ST, and 19.4 grams of MMA were mixed and stirred evenly to obtain a stable white monomer emulsion. Weigh 7.1 g of MAA and 70.2 g of HEMA into a glass bottle, then add 20 g of deionized water to obtain an aqueous solution. When the temperature of the reaction bottle reached 85°C, the following raw materials were added successively: 10 g of deionized aqueous solution containing 1.2 g of sodium carbonate, 18 g of the above-prepared monomer emulsion and 10 g of MAA and HEMA aqueous solutions, and 2.0 g of persulfuric acid A solution of amine dissolved in 15 g of deionized water. Exotherm occurs, wait until the temperature is no longer rising, and then maintain the temperature of the reaction bottle at 85°C, add the remaining m...

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Abstract

The invention discloses a water-based composite adhesive for plastic packaging and a preparation method thereof. The water-based environment-friendly polyacrylate adhesive composition, by weight, comprises: 80-95 parts of a compound whose surface tension is lower than 25 Dyn / cm and polyacrylate emulsion containing carboxyl groups and hydroxyl groups; 3-19.5 parts of a silane containing at least three hydrolyzable alkoxy groups; 0.5-2 parts of a non-ionic alkyl polyoxyethylene poly Penetrant for oxypropylene ether block copolymers. The polyacrylate composite adhesive of the present invention can perform gluing-compositing-winding at a composite machine speed greater than 180 m / min, and can provide a bright and flawless appearance and a strength greater than 1.0N / 15mm; High-speed flexible packaging lamination application can provide better adhesion, surface appearance and hot pressure flow resistance.

Description

technical field [0001] The invention relates to a polyacrylate adhesive and a preparation method thereof, in particular to a water-based environment-friendly polyacrylate adhesive used for packaging compounding and a preparation method thereof. The polyacrylate adhesive is especially suitable for flexible packaging applications that require high-speed operation and lamination, and it has relatively good appearance, bonding strength and anti-hot pressure flow. Background technique [0002] For the flexible packaging industry, as more and more products require convenience, speed and low cost; plastic packaging is developing very rapidly, especially for food and pharmaceutical packaging. This is because plastic packaging can be printed, compounded, rolled, and cut at high speed, and it is easy to carry out large-scale production; in addition, plastic packaging is low in cost, easy to transport, and convenient in application, and it is gradually replacing traditional packaging i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J133/08C09J11/08C09J11/06C08F220/18C08F212/08C08F220/14C08F220/06C08F220/28
CPCC09J11/06C09J11/08C09J133/08C08F220/18C08L2201/10C08F220/1804C08L71/02C08K5/5415C08F212/08C08F220/14C08F220/06C08F220/281C08F220/1802
Inventor 张廷珂卓建
Owner 普为(上海)新材料科技有限公司