High-strength directly aluminizing water-based base coat and preparation method and application of high-strength directly aluminizing water-based base coat

A high-strength, water-based technology, used in coatings, paper coatings, metal coatings, etc., to achieve good sealing, improved flexibility, and good anti-stick effects

Active Publication Date: 2014-06-18
GUANGZHOU HUMAN CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, combined with the application of aluminized paper, if it can have the following characteristics, the functionality of aluminized paper will be more perfect: sealing, flexibility, anti-adhesive, high aluminized metal texture, which is not mentioned in the above water-based primer

Method used

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  • High-strength directly aluminizing water-based base coat and preparation method and application of high-strength directly aluminizing water-based base coat
  • High-strength directly aluminizing water-based base coat and preparation method and application of high-strength directly aluminizing water-based base coat

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] (1) Preparation of water-based primer for direct aluminum plating:

[0044] (1) Mix 2g propylene glycol methyl ether and 6g ethanol evenly, then add 0.5g leveling agent BYK333 (polyether modified organosiloxane), 0.2g slip agent silok-8580 (silicon-containing organic compound) and 0.05g Defoamer tego902W (polyether modified organosiloxane), stir (200-1000r / min) until each component is dissolved, add 36.15g of deionized water and stir (200-1000r / min) evenly to obtain a mixed solution;

[0045] (2) Add 50g of DSM water-based acrylic modified polyurethane E-129 (solid content 60%) to the mixed solution obtained in step (1) under low-speed stirring (200-1000r / min), and then add 2g of water-based aldehyde ketone EPDS- 1300, dispersed evenly; then about 0.1g cyclohexylamine was added dropwise to adjust the pH to 6-9 to obtain a solution;

[0046] (3) Add 1g of thickener Dow hydroxyethylcellulose ER-4400 (1% (mass) aqueous solution) to the solution obtained in step (2), adjus...

Embodiment 2

[0050] (1) Preparation of water-based primer for direct aluminum plating:

[0051] (1) Mix 4g propylene glycol methyl ether acetate, 6g ethanol, and 6g n-propanol evenly, add 0.1g leveling agent EFKA-3777 (fluorocarbon leveling agent), 0.3g slip agent DC-30 (containing silicon organic compound) and 0.05g mineral oil defoamer AD-76, stir (200-1000r / min) until each component is dissolved, then add 19.35g deionized water and stir (200-1000r / min) evenly to obtain a mixed solution;

[0052] (2) Add 40g of DSM waterborne polyurethane NeoRezR-986 (solid content 34% (mass)) and 16g of waterborne polyester EW-312 ( 50% (mass)), then add 5g organic hardening resin water-based acrylic acid AC-830 (35% (mass)), and disperse evenly; then add about 0.2g N,N-dimethyldiethanolamine dropwise to adjust the pH to 6-9 , to obtain a solution;

[0053] (3) Add 1g of acrylic thickener LH-122 to the solution obtained in step (2) to adjust the viscosity to 25±2s s; then add 2g of silane coupling age...

Embodiment 3

[0057] (1) Preparation of water-based primer for direct aluminum plating:

[0058] (1) Mix 3g propylene glycol methyl ether, 1g n-butanol and 6g ethanol evenly, add 1g leveling agent Deqian levelol839 (acrylate leveling agent), 0.05g slip agent CHEMIPEARL W900 (Mitsui Chemicals, water-based polyolefin wax emulsion ) and 0.1g of antifoaming agent tego835 (polydimethylsiloxane defoaming agent), stirring (200-1000r / min) until the ingredients are dissolved, then adding 15.8g of deionized water and stirring (200-1000r / min ) uniformly to obtain a mixture;

[0059] (2) Add 40g of Bayer water-based polyurethane 2593 (solid content 35% (mass)) and 30g of ADEKA water-based polyurethane HUX1032 (solid content 30% % (mass)), then add 2g of nano-silica aqueous solution (10% (mass)), and disperse evenly; then add about 0.25g of 1-aminoisopropanol dropwise to adjust the pH to 6-9 to obtain a solution;

[0060] (3) Add 0.8g thickener ADEKAUH-450 (polyurethane associative thickener) to the s...

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Abstract

The invention discloses high-strength directly aluminizing water-based base coat and a preparation method and application of the high-strength directly aluminizing water-based base coat. The directly aluminizing water-based base coat comprises the following components in parts by mass: 50-80 parts of water-based resin, 6-16 parts of cosolvents, 0.1-1 part of flatting agents, 0.05-0.20 part of antifoaming agents, 0.05-0.5 part of slipping agents, 1-6 parts of hardening agents, 0.1-0.3 part of pH regulator, 0.2-2 parts of thickening agents, 0-2 parts of crosslinking agents and 6.2-36.2 parts of water. With good closure, the direct aluminizing water-based base coat disclosed by the invention guarantees the filling of micropores in the paper surface as well as the separation of water vapor; due to the characteristic of flexibility, the bending resistance of paper is realized; the viscosity resistance ensures that the film rolls are not bonded with each other after base coating on the aluminizing body paper; moreover, by adjusting the leveling property of the selected resin system and the coating, the base coat has high aluminizing metal texture.

Description

technical field [0001] The invention belongs to the field of water-based primer for pretreatment of direct-plating aluminum base paper, and in particular relates to a high-strength direct-plating aluminum water-based primer and a preparation method and application thereof. Background technique [0002] Aluminized paper is a paper-based special paper with a metallic appearance that is formed by arranging aluminum molecules on its surface through vacuum aluminizing technology. The traditional aluminum foil paper is a paper composite aluminum foil material obtained by laminating paper and aluminum foil with an adhesive. Among them, the thickness of the aluminum foil is about 7-9 μm, so this kind of aluminum foil paper needs to consume a lot of aluminum foil, and it is difficult to degrade after the application is over. At the same time, the adhesive used contains some unfriendly solvent components. The thickness of the aluminum layer of the aluminum-coated paper prepared by th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H19/02D21H19/12D21H21/14D21H23/56
Inventor 陈兴耀黄艳轶金兴菊陈森卢耀柏
Owner GUANGZHOU HUMAN CHEM
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