Environment-friendly polyester coating for aluminum-plastic composite panel and preparation method of coating

A technology of aluminum-plastic composite board and environmentally friendly polyester, which is applied in polyester coatings, anti-corrosion coatings, coatings, etc., can solve the problems of poor adhesion between UV ink layers, poor color hiding power, and poor water boiling resistance, and achieve improved Boil resistance, improved weather resistance, effects of improved water resistance and chemical resistance

Inactive Publication Date: 2015-04-01
SUZHOU COLOR WAY ENTERPRISE DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the existing polyester coatings for aluminum-plastic composite panels use saturated polyester resin-permethyletherified amino resin-acid catalyst crosslinking reaction in formula design, which has high crosslinking degree, good hardness, and excellent chemical resistance. characteristics; while UV ink has the characteristics of poor adhesion on aluminum, brittleness, poor color covering power, and poor boiling resistance.
Using the existing polyester coating as a primer, there is a problem of poor interlayer adhesion when spraying UV ink on the coating

Method used

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  • Environment-friendly polyester coating for aluminum-plastic composite panel and preparation method of coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Example 1: An environmentally friendly polyester coating for aluminum-plastic composite panels, the components and their mass percentages in the formula are: saturated polyester resin 45%, organic solvent 15.5%, rutile titanium dioxide powder 30%, closed curing 6% agent, 0.5% dispersant, 0.5% defoamer, 0.8% epoxy phosphate resin, 0.5% antioxidant, 0.5% UV absorber, 0.5% leveling agent, and 0.2% organic tin catalyst.

[0013] The preparation method of the environment-friendly polyester coating comprises the following steps:

[0014] (1) Select each component according to the formula, put in saturated polyester resin, mixed solvent, dispersant, defoamer in sequence, put it into a mixer for one stirring, and disperse evenly. The speed of the mixer is 400 rpm during one stirring. , the stirring time is 2 minutes;

[0015] (2) After the completion of step (1), the rutile titanium dioxide powder and the mixed solvent are added to the mixer for secondary stirring to obtain a ...

Embodiment 2

[0026] Example 2: An environmentally friendly polyester coating for aluminum-plastic composite panels, the components in the formula and their mass percentages are: saturated polyester resin 40%, organic solvent 16.3%, rutile titanium dioxide powder 32%, closed curing 7% of dispersant, 0.8% of dispersant, 0.3% of defoamer, 1% of epoxy phosphate resin, 1% of antioxidant, 1% of UV absorber, 0.3% of leveling agent, and 0.3% of organic tin catalyst.

[0027] The preparation method of the environment-friendly polyester coating comprises the following steps:

[0028] (1) Select each component according to the formula, put in saturated polyester resin, mixed solvent, dispersant, defoamer in sequence, put it into a mixer for one stirring, and disperse evenly. The speed of the mixer is 400 rpm during one stirring. , the stirring time is 2 minutes;

[0029] (2) After the completion of step (1), the rutile titanium dioxide powder and the mixed solvent are added to the mixer for secondar...

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Abstract

The invention discloses an environment-friendly polyester coating for an aluminum-plastic composite panel and a preparation method of the coating. The coating is prepared from the following components in percentage by mass: 40-50% of saturated polyester resin, 5-8% of enclosed curing agent, 0.1-0.3% of organic tin catalyst, 28-32% of titanium dioxide, 0.5-1% of epoxy phosphate resin, 0.5-1% of antioxidant, 0.5-1% of ultraviolet light absorber, 1-3% of other auxiliaries and 12-20% of mixed solvent; the components are selected according to the formula, and the saturated polyester resin, the mixed solvent and the auxiliaries are put into a mixer for primary mixing; the titanium dioxide and the mixed solvent are added to the mixer for secondary mixing; the mixture is ground by use of a basket mill to obtain a semi-finished product; the semi-finished product and the other components of the formula are added for third mixing and dispersed evenly to obtain the finished product; the environment-friendly polyester coating can be used independently as an aluminum-plastic composite panel finishing coat or as a UV jet-ink primer, so that the application range of the UV jet-ink is expanded.

Description

technical field [0001] The invention relates to the technical field of preparation of environmental protection coatings, in particular to an environmental protection polyester coating for aluminum-plastic composite panels suitable for UV inkjet ink primers. Background technique [0002] The existing polyester pre-roll coating in the market has been widely used in the field of building materials such as interior wall decorative panels, advertising panels and aluminum ceilings. For example, when it is used for aluminum-plastic composite panels, some text or patterns can be spray-painted with UV ink on the coated board, which can be applied to exhibition hall decoration or interior decoration, but the existing polyester coating coating generally appears ink printing when UV ink is sprayed. The UV coating has peeling phenomenon after it is not applied or printed. [0003] Existing polyester coatings for aluminum-plastic composite panels mostly use saturated polyester resin-perm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D167/00C09D7/12
CPCC08K2003/2241C09D167/00C08L2205/03C09D5/08C09D7/61C09D7/63
Inventor 罗义云
Owner SUZHOU COLOR WAY ENTERPRISE DEV
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