CN101735711A - Coating for anti-camouflage dark green coils and preparation method and application thereof - Google Patents

Abstract

The invention relates to a coating for anti-camouflage dark green coils, comprising the following components in percentage by weight: 45-60% of polyester resins, 6-8% of amino resins, 20-30% of special pigments, 0.1-0.5% of catalyst and 10-25% of mixed solvent, wherein, the special pigments include titanium dioxide powder, a yellow pigment, a green pigment and a black pigment. The invention also provides a preparation method and application of the coating. The polyester resins and the amino resins are crosslinked and the pigments with the infrared camouflage function are used in a matched manner to meet the requirements of outdoor camouflage for the functions of colors. The coating is coated through production line, is convenient for construction after coating, can be used for reprocessing of the steel plates and reduce the pollution caused by solvent volatilization to the environment during film forming and is beneficial to the national recycling economy.

Description

A kind of anti-camouflage deep green coil coating and its production and application that is used for

[technical field]

The present invention relates to a kind of coating, specifically, is about a kind of anti-camouflage deep green coil coating and its production and application that is used for.

[background technology]

Camouflage promptly is to show really that with latent but false method makes the property of detection or identification army equipment, equipment and facility be reduced to bottom line.Because modern Detection Techniques are infrared rays aerophotography development of technology particularly, make that the requirement with camouflage paint improves a lot to critical facility and special equipment.Originally the camouflage paint that was only limited in the visible-range just can not satisfy the needs of development far away, novel anti-infrared camouflage paint can be effectively to anti-visible-light, near infrared scouting and be widely used, be the desirable camouflage painting coating of ground barracks, military architecture etc. in the modern camouflage.

Infrared rays divide near infrared, in four kinds of infrared, far infrared and utmost point far infrareds, its wavelength is respectively 0.75～3 μ m, 3～6 μ m, 6～15 μ m, 15～1000 μ m.Under normal conditions, infrared camouflage coating has approximate or identical degree of reflection with natural chlorophyll in visible light and near infrared scope.Infrared rays does not have heterochromia to color, and the foundation that its finds target is the difference in brightness of itself and background.Therefore, anti-camouflage deep green coil coating must have degree of reflection approximate or identical with natural deep green and extremely low infrared ray absorption rate in above-mentioned infrared spectra interval.Common dark green colored paint commonly used at present, on the low side at the reflectivity that near-infrared band 700nm is later, how improving green lacquer is a difficult problem at the reflectivity of this wave band.

Infrared camouflage coating all carries out application by spraying coating process to ground at present, does not see streamline coating and quick-setting infrared camouflage coating relevant report.And the resin major part that the infrared camouflage of spraying adopts is chlorinated polyvinyl chloride and acrylic acid or the like, and solvent evaporates is many during film forming, and is big to the pollution of environment.

[summary of the invention]

The objective of the invention is, a kind of anti-camouflage deep green coil coating that is used for is provided.

One purpose more of the present invention is that a kind of preparation method who is used for anti-camouflage deep green coil coating is provided.

One purpose more of the present invention is that a kind of application that is used for anti-camouflage deep green coil coating is provided.

For achieving the above object, the technical scheme that the present invention takes is: a kind of being used for prevents pretending the deep green coil coating, and this coating is composed of the following components by weight percentage:

Vibrin 45-60%

Aminoresin 6-8%

Special pigment 20-30%

Catalyzer 0.1-0.5%

Mixed solvent 10-25%

Wherein, special pigment is titanium dioxide powder, yellow ultramarine, veridian and black pigment,

Described mixed solvent is composed of the following components by weight percentage:

Heavy aromatic solvent (C9-C10) 30-50%

1-Methoxy-2-propyl acetate 10-25%

Butylacetate 5-20%

Diester 0-15%.

Described vibrin is to be formed by the reaction of polyvalent alcohol and polyprotonic acid heated polymerizable, and molecular weight is at 6000-10000, viscosity 40-100 second, Tg30-40 ℃, hydroxyl value 50-100mg KOH/g, acid number≤6mgKOH/g has excellent flexibility and higher cross-linking density after this vibrin is crosslinked.

Described aminoresin is a kind of or its mixture in height methyl-etherified melamine resin, the high imino-melamine resin of methyl-etherified or the methyl-etherified melamine resin.

Described titanium dioxide powder is a rutile-type, and yellow ultramarine is to be selected from a kind of or its mixture in lead-chrome yellow, strontium chromate or the yellow barium chromate, and veridian is a chromoxide green, and black pigment is the siderochrome oxidate powder.

Described catalyzer is a tosic acid, dodecylbenzene sulfonic acid and two nonyl naphthalene disulfonic acids or alkylphosphonic acid carboxylic acid salt.

Described diester is made up of with weight ratio dimethyl succinate, Methyl glutarate and dimethyl adipate at 1: 1: 1.

For realizing above-mentioned second purpose, the technical scheme that the present invention takes is: a kind of method for preparing coating may further comprise the steps:

(a), vibrin, pigment, solvent are added steel basin, stir,, grind after mixing, less than 15um, obtain mill base until the mill base fineness to there not being fecula to occur;

(b), vibrin, aminoresin, solvent and catalyzer adding are joined paint bath, stirring;

(c), the mill base in the step (a) is added joining in the paint bath in the step (b), promptly obtain being used for anti-camouflage deep green coil coating.

For realizing above-mentioned the 3rd purpose, the technical scheme that the present invention takes is: the application of a kind of coating in anti-camouflage deep green coiled material.

The performance technologies index and the testing method of anti-camouflage deep green coil coating are as follows:

Vibrin, pigment, solvent are added steel basin, stir half an hour fast, to there not being fecula to occur, grind after mixing, until the mill base fineness less than 15um, put into and join paint bath, adding vibrin, aminoresin, solvent and catalyzer carry out color after stirring and performance test sees Table 1.

Table 1

Project	Index	Test method
			Viscosity (examining No. 4 cups of grace viscosity), s	??28±2	??ASTMD4212
Solids content, %	??≥58	??GB/T1725
			The highest metal sheet temperature (PMT), ℃	??224～249
Film thickness, μ m	??20±2	??GB/T1764
			Bending, T	??≤3	??ASTMD4145

Project	Index	Test method
			Gloss (60 °)	??≤6	??ASTMD523
Pencil hardness	??HB～2H	??ASTMD363
			Shock strength, cm (J)	??101.60(9.04)	??ASTMD2794
Solvent resistance (MEK), inferior	??≥100	??NCCA?II-18
			?ΔE*(CIE?Lab)	??≤2.0

The invention has the advantages that:

1, coating of the present invention is by vibrin and amino resin crosslinked, is equipped with the pigment with infrared camouflage function and reaches the functional requirement of outdoor camouflage to color.

2, coating is by the streamline application, and easy construction after the application can be reprocessed steel plate, has reduced solvent and has volatilized to the pollution of environment when film forming, is beneficial to China's recycling economy.

3, dark green color can reach the requirement of GJB 798-90 camouflage paint paint film color to color DG0730.

[embodiment]

Below a kind of embodiment that is used for anti-camouflage deep green coil coating and its production and application provided by the invention is elaborated.

Embodiment 1

Take by weighing 350 gram vibrin, 5 gram titanium dioxide powders, 25 gram siderochrome oxidate powders, 55 gram lead-chrome yellow powder, 190 gram chromoxide green powder, 30 gram N-BUTYL ACETATE and 20 grammes per square metre aromatic solvents (C9-C10), stir, be ground to the following one-tenth of fineness 15 μ m mill base then, standby.170 gram polyester gram polyester with remainder, the highly methyl etherified melamine resin of 65 grams, 5 gram part methyl-etherified melamine resins, 0.2 restrain two nonyl naphthalene disulfonic acids, 0.2 gram dodecylbenzene sulfonic acid, 30 gram 1-Methoxy-2-propyl acetates, 34.6 gram N-BUTYL ACETATE and 20 gram diesters mix, under agitation ground mill base is slowly added in the container of above-mentioned premix honest material, promptly get coil coating solution, sampling is the flash baking film forming after application is carried out on the set iron surface, filters packing after performance test (performance perameter sees Table 2) is qualified.

Table 2

Project	Index
		Viscosity (examining No. 4 cups of grace viscosity), s	??30
Solids content, %	??≥62

The highest metal sheet temperature (PMT), ℃	??241
		Film thickness, μ m	??20
Bending, T	??2
		Gloss (60 °)	??5.7
Pencil hardness	??F
		Shock strength, cm (J)	??101.60(9.04)
Solvent resistance (MEK), inferior	??≥100
		?ΔE*(CIE?Lab)	??1.2

Embodiment 2

Take by weighing 350 gram vibrin, 30 restrain the siderochrome oxidate powders, 40 gram lead-chrome yellow powder, and 205 gram chromoxide green powder, 25 gram N-BUTYL ACETATE and 25 grammes per square metre aromatic solvents (C9-C10) stir, and are ground to the following one-tenth of fineness 15 μ m mill base then, and are standby.170 gram polyester gram polyester with remainder, the highly methyl etherified melamine resin of 70 grams, 0.1 restrain two nonyl naphthalene disulfonic acids, 0.1 gram toluenesulphonic acids, 0.1 gram dodecylbenzene sulfonic acid, 40 gram 1-Methoxy-2-propyl acetates, 24.7 gram N-BUTYL ACETATE and 20 gram diesters mix, under agitation ground mill base is slowly added in the container of above-mentioned premix honest material, promptly get coil coating solution, sampling is the flash baking film forming after application is carried out on the set iron surface, filters packing after performance test (performance perameter sees Table 3) is qualified.

Table 3

Project	Index
		Viscosity (examining No. 4 cups of grace viscosity), s	??29
Solids content, %	??≥62
		The highest metal sheet temperature (PMT), ℃	??249
Film thickness, μ m	??20
		Bending, T	??3
Gloss (60 °)	??4.2

Project	Index
		Pencil hardness	??H
Shock strength, cm (J)	??101.60(9.04)
		Solvent resistance (MEK), inferior	??≥100
?ΔE*(CIE?Lab)	??0.35

Embodiment 3

Take by weighing 350 gram vibrin, 25 gram siderochrome oxidate powders, 50 gram lead-chrome yellow powder, 200 gram chromoxide green powder, 30 gram N-BUTYL ACETATEs, 10 gram butyl glycol ether and 10 grammes per square metre aromatic solvents (C9-C10) stir, be ground to the following one-tenth of fineness 15 μ m mill base then, standby.180 gram polyester gram polyester with remainder, the highly methyl etherified melamine resin of 65 grams, 5 gram part methyl-etherified melamine resins, 0.1 restrain two nonyl naphthalene disulfonic acids, 0.2 gram dodecylbenzene sulfonic acid, 20 gram 1-Methoxy-2-propyl acetates, 34.7 gram N-BUTYL ACETATE and 20 gram diesters mix, under agitation ground mill base is slowly added in the container of above-mentioned premix honest material, promptly get coil coating solution, sampling is the flash baking film forming after application is carried out on the set iron surface, filters packing after performance test (performance perameter sees Table 4) is qualified.

Table 4

Project	Index
		Viscosity (examining No. 4 cups of grace viscosity), s	??27
Solids content, %	??≥60
		The highest metal sheet temperature (PMT), ℃	??224
Film thickness, μ m	??20
		Bending, T	??3
Gloss (60 °)	??4.8
		Pencil hardness	??F
Shock strength, cm (J)	??101.60(9.04)
		Solvent resistance (MEK), inferior	??≥100

Project	Index
		?ΔE*(CIE?Lab)	??0.37

Anti-camouflage deep green coil coating of the present invention is by add pigment and the filler with infrared camouflage function when producing, adopt the high-speed flow line coating process, reach the good anti-camouflage impact of performance after the curing, the product after the application can be reprocessed, and convenient processing is out of doors used.

The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the inventive method; can also make some improvement and replenish, these improvement and replenish and also should be considered as protection scope of the present invention.

Claims (8)

1. one kind is used for anti-camouflage deep green coil coating, and this coating is composed of the following components by weight percentage:

Vibrin 45-60%

Aminoresin 6-8%

Special pigment 20-30%

Catalyzer 0.1-0.5%

Mixed solvent 10-25%

Wherein, special pigment is titanium dioxide powder, yellow ultramarine, veridian and black pigment,

Described mixed solvent is composed of the following components by weight percentage:

Heavy aromatic solvent (C9-C10) 30-50%

1-Methoxy-2-propyl acetate 10-25%

Butylacetate 5-20%

Diester 0-15%.

2. coating according to claim 1 is characterized in that: described vibrin is to be formed by polyvalent alcohol and the reaction of polyprotonic acid heated polymerizable, and molecular weight is at 6000-10000, viscosity 40-100 second, Tg30-40 ℃, hydroxyl value 50-100mg KOH/g, acid number≤6mg KOH/g.

3. coating according to claim 1 is characterized in that: described aminoresin is a kind of or its mixture in height methyl-etherified melamine resin, the high imino-melamine resin of methyl-etherified or the methyl-etherified melamine resin.

4. coating according to claim 1, it is characterized in that: described titanium dioxide powder is a rutile-type, yellow ultramarine is to be selected from a kind of or its mixture in lead-chrome yellow, strontium chromate or the yellow barium chromate, and veridian is a chromoxide green, and black pigment is the siderochrome oxidate powder.

5. coating according to claim 1 is characterized in that: described catalyzer is a kind of or its mixture in tosic acid, dodecylbenzene sulfonic acid, two nonyl naphthalene disulfonic acids or the alkylphosphonic acid carboxylic acid salt.

6. coating according to claim 1 is characterized in that: described diester is made up of with weight ratio dimethyl succinate, Methyl glutarate and dimethyl adipate at 1: 1: 1.

7. one kind prepares the method that is used for anti-camouflage deep green coil coating, may further comprise the steps:

(a), vibrin, pigment, solvent are added steel basin, stir,, grind after mixing, less than 15um, obtain mill base until the mill base fineness to there not being fecula to occur;

(b), vibrin, aminoresin, solvent and catalyzer adding are joined paint bath, stirring;

(c), the mill base in the step (a) is added joining in the paint bath in the step (b), promptly obtain being used for anti-camouflage deep green coil coating.

8. the application of coating in anti-camouflage deep green coiled material.