A kind of polyurethane water-based transfer glue and preparation method thereof

A transfer adhesive and polyurethane technology, applied in the direction of adhesives, grafted polymer adhesives, adhesive types, etc., can solve the problems of low VOC, unreachable, high folding resistance and heat resistance, etc., to prevent explosion Polymerization, performance-enhancing effects

Active Publication Date: 2020-12-22
SHANTOU XINYUAN CHEM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention patent with the patent number CN201510088121.0 discloses a water-based transfer adhesive and its preparation method. The technical solution is to solve the contradiction between the folding resistance, heat resistance and embossing resistance of the acrylic transfer adhesive. A core-shell structure acrylate transfer adhesive with different glass transition temperatures. This water-based transfer adhesive has strong adhesion, excellent compression resistance, and improved folding resistance. However, due to the inherent properties of acrylic emulsions, the emulsion produced by this scheme The performance cannot meet the requirements of ultra-low VOC, high folding resistance and heat resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] In the present embodiment, the preparation method of polyurethane water-based transfer adhesive comprises the following steps:

[0045] (1) Prepare the following raw materials: 501.81kg of water, 113.60kg of polyether polyol or polyester polyol with a functionality of 2 (both polyoxyethylene ether glycol, molecular weight 2000), polyether polyol with a functionality of ≥3 Alcohol or polyester polyol 6.31kg (both trifunctional polyether polyols, such as Dexin Federation’s polyether polyol DMN-1000), isocyanate 74.15kg (both isophorone diisocyanate), hydrophilic expansion Chain agent 12.62kg (both 2,2-dimethylolpropionic acid), dimethylethanolamine 9.47kg, post-chain extender 15.78kg (both isophorone diamine), post-crosslinking agent 1.58kg ( Both are diethylenetriamine), hydroxyl-terminated acrylate 7.89kg (both hydroxyethyl acrylate), methyl methacrylate 147.78kg, butyl methacrylate 63.64kg, butyl acrylate 37.87kg, emulsifier 1.58kg ( Both are alkyl alcohol ether sodiu...

Embodiment 2

[0062] In the present embodiment, the preparation method of polyurethane water-based transfer adhesive comprises the following steps:

[0063](1) Prepare the following raw materials: 557.38kg of water, 69.67kg of polyether polyol or polyester polyol with a functionality of 2 (both are polycaprolactone diol, molecular weight 1000), polyether polyol with a functionality of ≥3 Alcohol or polyester polyol 5.23kg (both trifunctional polyether polyols, such as Dexin Federal polyether polyol DMN-500), isocyanate 68.98kg (both toluene-2,4-diisocyanate), pro Water chain extender 13.93kg (both are 2,2-dimethylolbutyric acid), dimethylethanolamine 10.45kg, post-chain extender 13.93kg (both are isophorone diamine), post-crosslinking agent 1.74 kg (both diethylenetriamine), hydroxyl-terminated acrylate 6.97kg (both hydroxyethyl methacrylate), methyl methacrylate 139.34kg, butyl methacrylate 69.67kg, butyl acrylate 34.84kg, emulsified Agent 1.39kg (both nonylphenol polyoxyethylene ether am...

Embodiment 3

[0080] In the present embodiment, the preparation method of polyurethane water-based transfer adhesive comprises the following steps:

[0081] (1) Prepare the following raw materials: 420.43kg of water, 211.52kg of polyether polyol or polyester polyol with a functionality of 2 (both polytetrahydrofuran ether glycol, molecular weight 4000), polyether polyol with a functionality of ≥3 Or polyester polyol 6.61kg (both trifunctional polyether polyols, such as Dexin Federal Polyether Polyol DMN-1000), isocyanate 132.20kg (both diphenylmethane diisocyanate), hydrophilic chain extension Agent 13.22kg (both 2,2-dimethylolpropionic acid), dimethylethanolamine 8.73kg, post-chain extender 10.58kg (both isophorone diamine), post-crosslinking agent 0.79kg (both Diethylenetriamine), 5.97kg of hydroxyl-terminated acrylate (both hydroxyethyl acrylate), 82.32kg of methyl methacrylate, 69.03kg of butyl methacrylate, 31.73kg of butyl acrylate, 1.85kg of emulsifier (all is alkyl alcohol ether so...

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Abstract

The invention discloses polyurethane water-based transfer adhesive. The polyurethane water-based transfer adhesive is prepared from raw materials including, by weight, 40-70% of water, 6-25% of polyether polyol or polyester polyol with the functionality of 2, 0.5-1.5% of polyether polyol or polyester polyol with the functionality higher than or equal to 3, 6-15% of isocyanate, 1-2% of hydrophilicchain extenders, 0.8-1.2% of dimethylethanolamine, 0.5-3.0% of post-chain extenders, 0.01-0.3% of post-cross-linking agents, 0.5-1.5% of terminal hydroxyl acrylate, 8-15% of methyl methacrylate, 5-10%of butyl methacrylate, 1-5% of butyl acrylate, 0.1-0.2% of emulsifiers, 0.1-0.4% of catalysts, 0.01-0.05% of thickeners, 0.1-0.3% of defoaming agents and 0.1-0.3% of preservatives. The invention further provides a method for preparing the polyurethane water-based transfer adhesive. The polyurethane water-based transfer adhesive and the method have the advantages of high adhesion between aluminumplated layers and paper, excellent folding resistance, explosion resistance, stain-on-firing resistance and gold stamping processing property, good antifreeze performance and ultralow VOC (volatile organic compound) content.

Description

technical field [0001] The invention relates to an adhesive, in particular to a polyurethane water-based transfer adhesive and a preparation method thereof. Background technique [0002] Transfer aluminized paper is a new type of packaging material, with its environmental protection, aesthetics, economy and anti-counterfeiting characteristics, it replaces the traditional PET-coated cardboard or aluminum foil composite cardboard, and is widely used in high-end printing such as tobacco, alcohol, food, and medicine. packaging field. The production process of transfer aluminized paper is to first coat the transfer coating on the film (such as PP film or PET film), dry the film and vacuum aluminize it, then apply the transfer glue, compound the transfer aluminized film and paper, and dry Finally, the film is peeled off to become a transfer aluminized paper. [0003] The early transfer adhesives were mainly organic solvent-based. Due to the pollution of the environment and the r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J151/08C08F283/00C08F220/14C08G18/67C08G18/66C08G18/48C08G18/44C08G18/42C08G18/34C08G18/32
CPCC08F283/008C08G18/3228C08G18/3234C08G18/348C08G18/4277C08G18/44C08G18/4854C08G18/672C09J151/08C08F220/14
Inventor 谢铠烨谢进标郑宏志郑少琴
Owner SHANTOU XINYUAN CHEM TECH CO LTD
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