CN103589195B - Preparation method of cinereous pigment capable of reflecting infrared rays and heat-insulating paint - Google Patents
Preparation method of cinereous pigment capable of reflecting infrared rays and heat-insulating paint Download PDFInfo
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- CN103589195B CN103589195B CN201310508095.3A CN201310508095A CN103589195B CN 103589195 B CN103589195 B CN 103589195B CN 201310508095 A CN201310508095 A CN 201310508095A CN 103589195 B CN103589195 B CN 103589195B
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Abstract
The invention discloses a preparation method of a cinereous pigment capable of reflecting infrared rays and a heat-insulating paint. The preparation method comprises the steps of weighing ferric oxide, dichromium trioxide, aluminum oxide, titanium dioxide, molybdenum trioxide and vanadium pentoxide according to certain weight parts, and uniformly mixing; calcining the mixture at 1050 DEG C for 6-8 hours, and grinding the mixture into powder after cooling. The cinereous pigment prepared by the preparation method is added into a coating to prepare the heat-insulating paint, and has a good infrared ray reflecting performance. Besides, production equipment of the preparation method disclosed by the invention mainly comprises a ball grinding mill and a calcining electric furnace, so that the preparation method is less in equipment investment, simple in preparation process, easy in operation and suitable for large-scale industrial production.
Description
Technical field
The present invention relates to a kind of pigment preparation method and for heat insulation hot shielding coating.
Background technology
The automobile, building roof, storage tank, boats and ships etc. comparatively bear dirty (making dirt unobtrusively) of the dark coating such as black, but the dark coating such as grey black easily absorbs heat under sunlight, summer will make in car, room temp be easy to raise and cause sense of discomfort to people, be also unfavorable for preservation and the conveying of article.Adopt that have can the dark pigment such as grey black of infrared radiation reflecting function, added in the product such as coating, plastic sheet, the product with reflective insulation function can be prepared.Be applied to the shell coating of automobile, building roof, storage tank, boats and ships etc., and the aspect such as rupture disk, thermal baffle, can infrared rays (the main conduction person of solar heat) radiation in reflected sunlight.Interior, indoor temperature can be made to be unlikely to rising in summer too fast, thus greatly can alleviate the load of air-conditioning, reach the object of energy-saving and emission-reduction and protection of the environment.Existing a small amount of infrared reflecting paint is developed out at present, as US Patent No. 20090223414, US6221147, US6416868, US6541112 just report the pigment containing transition metal or rare earth element, but these pigment prices, or it is more complicated to there is preparation technology, or the defect such as its properties of infrared reflection is excellent not.
Summary of the invention
The object of this invention is to provide a kind of can the preparation method of the heat insulation pigment of grey black of infrared radiation reflecting, and the infrared reflection performance utilizing the grey black pigment prepared good, is added in coating and is made heat insulation paint.
For reaching above object, the present invention takes following technical scheme to be achieved:
Can the preparation method of grey black pigment of reflected infrared, it is characterized in that, comprise the following steps:
(1) raw material of following component by weight, is weighed: ferric oxide 100 parts; Chromium sesquioxide 45-60 part; Aluminium sesquioxide 2.0-3.5 part; Titanium dioxide 0.5-1.5 part; Molybdic oxide 0.5-1.0 part; Vanadium Pentoxide in FLAKES 0.1-0.5 part, mixes;
(2) mixture after mixed grinding is calcined 6-8 hour at 1050 DEG C, after its cooling, then worn into powder, obtaining can the grey black pigment of reflected infrared.
Can the preparation method of grey black pigment of reflected infrared, it is characterized in that, ball mill wet grinding mixing is put in the raw material mixing described in step (1).
A heat insulation paint containing above-mentioned grey black pigment, is characterized in that, is mixed by obtained grey black powder pigment with the ratio of alkyd varnish by weight 1:7.
Compared with the infrared reflecting paint prepared with prior art, grey black pigment prepared by the present invention has good infrared reflection performance (be 58%-67% at the reflectivity TSR at total sunshine of wavelength 400-2500nm), can be used for being added in coating and makes thermal insulating coating product; In addition, prepared by the present invention the grey black pigment production device of reflected infrared can be mainly ball mill and firing electric furnace, and equipment investment is few, preparation technology is simple and easy handling, so be applicable to large-scale industrial production.
Accompanying drawing explanation
Fig. 1 is the UV-Vis-NIR reflectance spectra of pigment at wavelength 200-2500nm of embodiment 1 to embodiment 3.
Fig. 2 is the UV-Vis-NIR reflectance spectra of embodiment 4 to embodiment 5 pigment at wavelength 200-2500nm.
Embodiment
Below by specific embodiment, technical scheme of the present invention is described in further detail.
Embodiment 1
By weight, the raw material of following component is weighed: ferric oxide 100 parts; Chromium sesquioxide 50 parts; Aluminium sesquioxide 2.5 parts; Titanium dioxide 0.9 part; Molybdic oxide 0.6 part; Vanadium Pentoxide in FLAKES 0.3 part, puts into the grinding of ball mill wet-mixed evenly; Mixture after grinding is calcined 7 hours at 1050 DEG C in resistance furnace, after its cooling, then puts into ball mill and worn into powder, obtained grey black pigment sample.
Embodiment 2
By weight, the raw material of following component is weighed: ferric oxide 100 parts; Chromium sesquioxide 45 parts; Aluminium sesquioxide 2.0 parts; Titanium dioxide 1.5 parts; Molybdic oxide 0.5 part; Vanadium Pentoxide in FLAKES 0.1 part, puts into the grinding of ball mill wet-mixed evenly; Mixture after grinding is calcined 6 hours at 1050 DEG C in resistance furnace, after its cooling, then puts into ball mill and worn into powder, obtained grey black pigment sample.
Embodiment 3
By weight, the raw material of following component is weighed: ferric oxide 100 parts; Chromium sesquioxide 60 parts; Aluminium sesquioxide 3.5 parts; Titanium dioxide 0.5 part; Molybdic oxide 1.0 parts; Vanadium Pentoxide in FLAKES 0.5 part, puts into the grinding of ball mill wet-mixed evenly; Mixture after grinding is calcined 6 hours at 1050 DEG C in resistance furnace, after its cooling, then puts into ball mill and worn into powder, obtained grey black pigment sample.
Embodiment 4
By weight, the raw material of following component is weighed: ferric oxide 100 parts; Chromium sesquioxide 55 parts; Aluminium sesquioxide 3.0 parts; Titanium dioxide 1.0 parts; Molybdic oxide 0.8 part; Vanadium Pentoxide in FLAKES 0.2 part, puts into the grinding of ball mill wet-mixed evenly; Mixture after grinding is calcined 8 hours at 1050 DEG C in resistance furnace, after its cooling, then puts into ball mill and worn into powder, obtained grey black pigment sample.
Embodiment 5
By weight, the raw material of following component is weighed: ferric oxide 100 parts; Chromium sesquioxide 50 parts; Aluminium sesquioxide 3.0 parts; Titanium dioxide 1.2 parts; Molybdic oxide 0.8 part; Vanadium Pentoxide in FLAKES 0.4 part, puts into the grinding of ball mill wet-mixed evenly; Mixture after grinding is calcined 7 hours at 1050 DEG C in resistance furnace, after its cooling, then puts into ball mill and worn into powder, obtained grey black pigment sample.
Method for testing performance and the detected result of above-described embodiment pigment sample are as follows:
Obtained above-mentioned five different composition pigment sample are mixed with the ratio of common alkyd varnish by weight 1:7, obtain the paint sample of five different composition pigment respectively, roller coat is on steel plate sample, adopt American Society Testing and Materials ASTM D4803-89 examination criteria to carry out the detection of the heat history temperature difference to described steel plate sample, the painted steel sample surface temperature test result of embodiment 1 to embodiment 5 pigment is as shown in table 1.Adopt American Society Testing and Materials ASTM C-1549 examination criteria to carry out the detection of infrared reflection performance to described steel plate sample, the painted steel sample recording embodiment 1 to embodiment 5 pigment is as shown in table 1 in the test result of total reflectivity at sunshine (TSR) in the visible-near-infrared district of wavelength 400-2500nm.Adopt the Lambda950 ultraviolet-visible-near-infrared spectrum instrument of U.S. Perkin-Elmer company to embodiment 1 to embodiment 5 pigment wavelength 200-2500nm UV-Vis-NIR reflectance spectra as depicted in figs. 1 and 2.As can be seen from Figure, within the scope of wavelength 1500-2500nm, the luminous reflectance factor of the paint sample of embodiments of the invention 1,2,4 is all more than 70%.
The heat history temperature difference of the heat insulation paint of table 1 the present invention detect and sunshine reflex test result
Claims (2)
1. can the preparation method of grey black pigment of reflected infrared, it is characterized in that, comprise the following steps:
(1) raw material of following component by weight, is weighed: ferric oxide 100 parts; Chromium sesquioxide 45-60 part; Aluminium sesquioxide 2.0-3.5 part; Titanium dioxide 0.5-1.5 part; Molybdic oxide 0.5-1.0 part; Vanadium Pentoxide in FLAKES 0.1-0.5 part, mixes;
(2) mixture after mixed grinding is calcined 6-8 hour at 1050 DEG C, after its cooling, then worn into powder, obtaining can the grey black pigment of reflected infrared.
2. a heat insulation paint, it is characterized in that, containing described in claim 1 can reflected infrared grey black pigment preparation method in the obtained grey black pigment of step (2), the ratio of this grey black powder pigment and alkyd varnish 1:7 is by weight mixed.
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| CN201310508095.3A CN103589195B (en) | 2013-10-24 | 2013-10-24 | Preparation method of cinereous pigment capable of reflecting infrared rays and heat-insulating paint |
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| CN103589195B true CN103589195B (en) | 2015-05-06 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103923506B (en) * | 2014-04-12 | 2016-08-17 | 北京工业大学 | A kind of black infrared reflecting paint and preparation method thereof |
| CN103923505B (en) * | 2014-04-12 | 2017-02-22 | 北京工业大学 | Reddish brown near-infrared reflection pigment and preparation method thereof |
| CN104910673B (en) * | 2015-05-25 | 2017-04-26 | 陕西理工学院 | Preparation method of green pigment capable of reflecting infrared ray, and thermal-insulation paint |
| CN107936617A (en) * | 2017-11-22 | 2018-04-20 | 上海沪正实业有限公司 | A kind of weather-proof low-transmittance inorganic thermal insulation pigment of superelevation and preparation method thereof |
| CN108084740A (en) * | 2017-12-19 | 2018-05-29 | 江南大学 | The preparation method of the ultra-fine heat-insulated black pigment of near-infrared reflection |
| CN110330813B (en) * | 2019-05-09 | 2021-06-18 | 西华大学 | Color TiO2Near-infrared reflection pigment and preparation method thereof |
| CN116178991A (en) * | 2023-03-03 | 2023-05-30 | 烟台大学 | Fe (Fe) 2 O 3 -Cr 2 O 3 Preparation method of high near infrared reflection pigment and application of pigment in coating |
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