CN103289441A - Method for preparing flame-retardant iron oxide black granules - Google Patents
Method for preparing flame-retardant iron oxide black granules Download PDFInfo
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- CN103289441A CN103289441A CN2013101946656A CN201310194665A CN103289441A CN 103289441 A CN103289441 A CN 103289441A CN 2013101946656 A CN2013101946656 A CN 2013101946656A CN 201310194665 A CN201310194665 A CN 201310194665A CN 103289441 A CN103289441 A CN 103289441A
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- iron oxide
- oxide black
- viscous liquid
- retardant
- fire
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Abstract
The invention discloses a method for preparing flame-retardant iron oxide black granules. The method comprises the following specific steps of: dissolving polyethylene pyrrolidone, aluminum oxide and antimony trioxide into deionized water according to a certain weight ratio, so as to obtain viscous liquid; adding gas-phase white carbon black and simethicone to the obtained viscous liquid so as to carry out modification; and adding iron oxide black to a granulator for granulation while uniformly spraying the modified viscous liquid to iron oxide black powder, so as to form small iron oxide black granules, drying and sieving, thereby obtaining finished products. The iron oxide black granules prepared by the method have the characteristics of excellent temperature resistance, good acid and alkali resistance, strong light absorption, high coloring power, good compatibility, good dispersion and the like, and have huge market prospects.
Description
Technical field
The present invention relates to a kind of preparation method of iron oxide black, be specifically related to a kind of preparation method of fire-retardant iron oxide black particle.
Background technology
Iron oxide black, molecular formula are Fe
3O
4, be black powder, be Fe
2O
3With the affixture of FeO, water insoluble, have magnetic, tinting strength and opacifying power are very high.A kind of as in the iron pigment of iron oxide black because it is nontoxic, do not have characteristics such as smell, pollution-free, is widely used in phenolic antirust paint filler, heavy-duty coating priming paint etc. in the building trade; When being used for rubber, plastics painted, the aging effect of reinforcement is arranged, protect organism by the characteristics of ultraviolet degradation simultaneously; In addition, also be used for the painted of artificial marble, pottery and cement flooring.But phenomenons such as iron oxide black can fade under comparatively high temps, variable color, heat-resistant stability is poor, thereby has limited the use range of iron oxide black.
Summary of the invention
The object of the present invention is to provide a kind of preparation method of fire-retardant iron oxide black particle, improve the high-temperature stability of iron oxide black.
The technical solution used in the present invention is as follows:
A kind of preparation method of fire-retardant iron oxide black particle may further comprise the steps:
(1) take by weighing polyvinylpyrrolidone, aluminium sesquioxide and antimonous oxide by weight 3-5:3-4:1 and add in the 10-15 times of deionized water, heating in water bath ultra-sonic dispersion 30-35 minute, gets viscous liquid to 60-65 ℃;
(2) add the gas-phase silica of 1-2% and the dimethyl silicone oil of 2-3% in the above-mentioned viscous liquid that makes, the 2500-3000rpm high speed shear was disperseed 15-20 minute, got the viscous liquid of gas-phase silica and dimethyl silicone oil modification;
(3) get 105-125 part iron oxide black by weight and add in the tablets press and carry out granulation, the modification viscous liquid that 45-55 part step (2) is made sprays on the iron oxide black powder equably simultaneously, forms the iron oxide black small-particle;
(4) the iron oxide black particle that step (3) is made is crossed the 40-60 mesh sieve then in 80-90 ℃ of oven dry down, gets product.
Ultrasonic power described in the step (1) is 600-800W, and ultrasonic frequency is 20-30KHz.
The rotating speed of the tablets press described in the step (3) is 1500-2500rpm.
Beneficial effect of the present invention:
The present invention manufactures surface coverage with the iron oxide black powder the aluminium sesquioxide of containing and antimonous oxide, has flame retardant resistance preferably, can obviously improve intensity and the thermotolerance of the raising black iron oxide pigment of iron oxide black, the iron oxide black that the present invention produces has superior heat resistance, well acidproof, alkaline resistance properties and characteristics such as light absorptive is strong, tinting strength is high, consistency is good, good dispersity have huge market outlook.
Embodiment
A kind of preparation method of fire-retardant iron oxide black particle may further comprise the steps:
(1) take by weighing polyvinylpyrrolidone, aluminium sesquioxide and antimonous oxide adds in 15 times of deionized waters by weight 4:3:1, heating in water bath to 60 ℃, ultra-sonic dispersion 30 minutes gets viscous liquid;
(2) gas-phase silica of adding 1.5% and 2% dimethyl silicone oil in the above-mentioned viscous liquid that makes, the 2500rpm high speed shear was disperseed 20 minutes, got the viscous liquid of gas-phase silica and dimethyl silicone oil modification;
(3) get 110 parts of iron oxide blacks by weight and add in the tablets presss and carry out granulation, the modification viscous liquid that 50 parts of steps (2) are made sprays on the iron oxide black powder equably simultaneously, forms the iron oxide black small-particle;
(4) the iron oxide black particle that step (3) is made is crossed 40 mesh sieves then in 85 ℃ of oven dry down, gets product.
Ultrasonic power described in the step (1) is 700W, and ultrasonic frequency is 25KHz.
The rotating speed of the tablets press described in the step (3) is 2000rpm.
Iron oxide black product performance analysis data such as following table that present embodiment is produced:
| Project | Index | Detected result |
| The water solubles (%) | ≤1.0 | ?0.63 |
| 105 ℃ of volatile matters (%) | ≤1.0 | 0.78 |
| Oil number (%) | 15-25 | 22.9 |
| Tinctorial strength (%) | 95-105 | 98.9 |
| Anti-200 ℃/30min (△ E) | ≤1.0 | 0.74 |
Claims (3)
1. the preparation method of a fire-retardant iron oxide black particle is characterized in that may further comprise the steps:
(1) take by weighing polyvinylpyrrolidone, aluminium sesquioxide and antimonous oxide by weight 3-5:3-4:1 and add in the 10-15 times of deionized water, heating in water bath ultra-sonic dispersion 30-35 minute, gets viscous liquid to 60-65 ℃;
(2) add the gas-phase silica of 1-2% and the dimethyl silicone oil of 2-3% in the above-mentioned viscous liquid that makes, the 2500-3000rpm high speed shear was disperseed 15-20 minute, got the viscous liquid of gas-phase silica and dimethyl silicone oil modification;
(3) get 105-125 part iron oxide black by weight and add in the tablets press and carry out granulation, the modification viscous liquid that 45-55 part step (2) is made sprays on the iron oxide black powder equably simultaneously, forms the iron oxide black small-particle;
(4) the iron oxide black particle that step (3) is made is crossed the 40-60 mesh sieve then in 80-90 ℃ of oven dry down, gets product.
2. the preparation method of a kind of fire-retardant iron oxide black particle according to claim 1 is characterized in that, the ultrasonic power described in the step (1) is 600-800W, and ultrasonic frequency is 20-30KHz.
3. the preparation method of a kind of fire-retardant iron oxide black particle according to claim 1 is characterized in that, the rotating speed of the tablets press described in the step (3) is 1500-2500rpm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310194665.6A CN103289441B (en) | 2013-05-23 | 2013-05-23 | Method for preparing flame-retardant iron oxide black granules |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310194665.6A CN103289441B (en) | 2013-05-23 | 2013-05-23 | Method for preparing flame-retardant iron oxide black granules |
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| Publication Number | Publication Date |
|---|---|
| CN103289441A true CN103289441A (en) | 2013-09-11 |
| CN103289441B CN103289441B (en) | 2015-01-21 |
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| CN201310194665.6A Active CN103289441B (en) | 2013-05-23 | 2013-05-23 | Method for preparing flame-retardant iron oxide black granules |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103819940A (en) * | 2014-02-12 | 2014-05-28 | 铜陵瑞莱科技有限公司 | Fire-retardant black iron oxide pigment |
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|---|---|---|---|---|
| US5002609A (en) * | 1989-04-04 | 1991-03-26 | Bayer Aktiengesellschaft | Iron oxide black pigment granules, processes for their preparation and their use |
| US5055136A (en) * | 1988-06-24 | 1991-10-08 | Bayer Aktiengesellschaft | Heat-stable iron oxide black pigments, processes for their production and their use |
| JPH04190839A (en) * | 1990-11-24 | 1992-07-09 | Kanebo Ltd | Modified powder |
| US20060264551A1 (en) * | 2005-05-23 | 2006-11-23 | Toda Kogyo Corporation | Black iron-based particles, and black paint and rubber or resin composition using the same |
| CN101457035A (en) * | 2008-12-28 | 2009-06-17 | 姚永平 | Erasable paint and preparation method and use thereof |
| CN101691456A (en) * | 2009-10-20 | 2010-04-07 | 杭州萧湘颜料化工有限公司 | Iron oxide black granular pigment and preparation method thereof |
| CN102250428A (en) * | 2011-05-23 | 2011-11-23 | 天津大学 | Preparation method for epoxy-resin-modified waste polystyrene-acrylonitrile plastic and recycled board |
| CN102719150A (en) * | 2011-04-25 | 2012-10-10 | 沈阳中科腐蚀控制工程技术中心 | Reflecting heat-insulation flame-retardant paint and preparation method thereof |
-
2013
- 2013-05-23 CN CN201310194665.6A patent/CN103289441B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5055136A (en) * | 1988-06-24 | 1991-10-08 | Bayer Aktiengesellschaft | Heat-stable iron oxide black pigments, processes for their production and their use |
| US5002609A (en) * | 1989-04-04 | 1991-03-26 | Bayer Aktiengesellschaft | Iron oxide black pigment granules, processes for their preparation and their use |
| JPH04190839A (en) * | 1990-11-24 | 1992-07-09 | Kanebo Ltd | Modified powder |
| US20060264551A1 (en) * | 2005-05-23 | 2006-11-23 | Toda Kogyo Corporation | Black iron-based particles, and black paint and rubber or resin composition using the same |
| CN101457035A (en) * | 2008-12-28 | 2009-06-17 | 姚永平 | Erasable paint and preparation method and use thereof |
| CN101691456A (en) * | 2009-10-20 | 2010-04-07 | 杭州萧湘颜料化工有限公司 | Iron oxide black granular pigment and preparation method thereof |
| CN102719150A (en) * | 2011-04-25 | 2012-10-10 | 沈阳中科腐蚀控制工程技术中心 | Reflecting heat-insulation flame-retardant paint and preparation method thereof |
| CN102250428A (en) * | 2011-05-23 | 2011-11-23 | 天津大学 | Preparation method for epoxy-resin-modified waste polystyrene-acrylonitrile plastic and recycled board |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103819940A (en) * | 2014-02-12 | 2014-05-28 | 铜陵瑞莱科技有限公司 | Fire-retardant black iron oxide pigment |
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|---|---|
| CN103289441B (en) | 2015-01-21 |
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