Environment-friendly aquosity composite citicall limited aluminium paint and preparation method thereof

A kind of laser aluminum plating, environmental protection technology, applied in the direction of coating, can solve the problems of environmental pollution in production and use, high content of volatile organic compounds, solvent cost control, etc., to achieve good adaptability, good solvent resistance, molding temperature wide range of effects

Active Publication Date: 2010-07-07
SHANGHAI WEIKAI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing composite laser aluminized coating is a solvent-based system, which uses a large amount of organic solvents. On the one hand, the high content of volatile organic compounds (VOCs) causes serious pollution to the production and use environment; question
Water-based coatings have incomparable environmental protection advantages compared to solvent-based coatings. It has become a widespread consensus. It is also the trend of the times for composite laser aluminized coatings to go water-based. Environmentally friendly water-based composite laser aluminized coatings have not yet seen relevant patents or literature reports.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A preparation method of an environment-friendly water-based composite laser aluminized coating, the method comprising the following steps:

[0048] (1) Prepare materials according to the following components and contents: 30kg self-crosslinking acrylic emulsion, 10kg hard acrylic emulsion, 10kg polyurethane water dispersion, 20kg co-solvent, 29.45kg deionized water, 0.2kg pH regulator, 0.1kg moistening Wet agent, 0.2kg leveling agent, 0.05kg defoamer. Among them, the glass transition temperature of the self-crosslinking acrylic emulsion is 50°C, and the molecular weight is ≥200,000; the glass transition temperature of the hard acrylic emulsion is 90°C, and the molecular weight is ≥200,000; the softening point of the polyurethane water dispersion is 210°C; the cosolvent is Ethanol; pH regulator is ammonia water; wetting agent is fatty alcohol sodium sulfate; leveling agent is amino-modified organosiloxane; defoaming agent is amino-modified polysiloxane.

[0049] (2) Pla...

Embodiment 2

[0055] A preparation method of an environment-friendly water-based composite laser aluminized coating, the method comprising the following steps:

[0056] (1) Prepare materials according to the following components and contents: 40kg self-crosslinking acrylic emulsion, 5kg rigid acrylic emulsion, 5kg polyurethane water dispersion, 10kg co-solvent, 39kg deionized water, 0.2kg pH regulator, 0.5kg wetting agent, 0.1kg leveling agent, 0.2kg defoamer. Among them, the glass transition temperature of the self-crosslinking acrylic emulsion is 50°C, and the molecular weight is ≥200,000; the glass transition temperature of the hard acrylic emulsion is 90°C, and the molecular weight is ≥200,000; the softening point of the polyurethane water dispersion is 210°C; the cosolvent is Isopropanol; pH regulator is triethylamine; wetting agent is sodium dodecylbenzenesulfonate; leveling agent is polyether modified polysiloxane; defoamer is commercially available Deqian W- 090.

[0057] (2) Plac...

Embodiment 3

[0062] A preparation method of an environment-friendly water-based composite laser aluminized coating, the method comprising the following steps:

[0063] (1) Prepare materials according to the following components and contents: 35kg self-crosslinking acrylic emulsion, 7kg hard acrylic emulsion, 6kg polyurethane aqueous dispersion, 15kg co-solvent, 36.35kg deionized water, 0.2kg pH regulator, 0.2kg moistening Wet agent, 0.15kg leveling agent, 0.1kg defoamer. Among them, the glass transition temperature of the self-crosslinking acrylic emulsion is 50°C, and the molecular weight is ≥200,000; the glass transition temperature of the hard acrylic emulsion is 90°C, and the molecular weight is ≥200,000; the softening point of the polyurethane water dispersion is 210°C; the cosolvent is Propylene glycol ether; pH adjuster is dimethylethylamine; wetting agent is alkylphenol polyoxyethylene ether (APEO); leveling agent is polyoxyethylene amine; defoamer is commercially available LH-511....

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Abstract

The invention relates to an environment-friendly aquosity composite citicall limited aluminium paint and a preparation method thereof. The paint comprises the following components in parts by weight: 5-10 parts of self crosslinking acrylic emulsion and stereoplasm acrylic emulsion, 5-10 parts of aqueous dispersoid of polyurethane, 10-20 parts of cosolvent, 20-40 parts of deionized water, 0.2-0.3 part of pH regulator, 0.1-0.5 part of wetting agents, 0.1-0.2 part of flatting agents and 0.05-0.2 part of defoamers; the resin components are put in a reaction kettle; stirring the mixture at a low speed; adding the pH regulator, the wetting agent, the flatting agent and the defoamer in turn; and stirring the mixture and filtrating to obtain a finished product. Compared with the prior art, the invention has the advantages of environment protection, low cost, good solvent resistance, wider range of suitable mould pressing temperature during the mould pressing, good mould pressing effect, is easy to control during production, and can be directly used to replace the prior solvent type composite citicall limited paint.

Description

technical field [0001] The invention relates to a composite coating and a preparation method thereof, in particular to an environment-friendly water-based composite laser aluminized coating and a preparation method thereof. Background technique [0002] PET laser aluminized film has always occupied a place in the packaging field due to its unique functionality, strong metallic appearance and dazzling laser effect, and its tailor-made composite laser aluminized coating has been widely promoted and applied. The basic performance of the composite laser aluminized coating is its adhesion and molding effect. The adhesion refers to the adhesion of the coating to the base film (generally PET polyester film). The molding effect refers to the holographic laser on the coating through the molding process. Effect. [0003] The existing composite laser aluminized coating is a solvent-based system, which uses a large amount of organic solvents. On the one hand, the high content of volati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/02C09D5/00
Inventor 董海普张芳芳戴胜杰张阳红邓庆仪
Owner SHANGHAI WEIKAI CHEM
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