CN104559333A - Preparation method of high tinting strength iron oxide black - Google Patents
Preparation method of high tinting strength iron oxide black Download PDFInfo
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- CN104559333A CN104559333A CN201410846835.9A CN201410846835A CN104559333A CN 104559333 A CN104559333 A CN 104559333A CN 201410846835 A CN201410846835 A CN 201410846835A CN 104559333 A CN104559333 A CN 104559333A
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- iron oxide
- oxide black
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- black
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Abstract
The invention discloses a preparation method of high-tinting strength iron oxide black. The preparation method comprises the following steps: adding 2-3 percent of a silane coupling agent KH550 and 1.5-2.5 percent of carbon black into iron oxide black prepared according to a sodium hydroxide oxidation method, grinding at a high speed of 1500-2000 rpm for 15 to 20 minutes, then adding water and beating for 20-30 minutes, so as to prepare a slurry with the concentration of 40 to 50 percent, adding polyethyleneglycol with the weight of 0.4 to 0.6 percent of that of the slurry, 0.3 to 0.4 percent of nanocarbon, and 0.2 to 0.3 percent of a composite lead salt stabilizer, stirring for 30 to 40 minutes, then grinding into a thick liquid with particle diameter smaller than 40 mum through a colloid mill, and drying and powdering, namely a finished product is obtained. According to the preparation method provided by the invention, the silane coupling agent KH550 and the carbon black are adopted for grinding an iron oxide black filter cake, the carbon black has a tinting effect, and is good in stability, through the combination of the carbon black and the silane coupling agent, the combination between the iron oxide black and the carbon black is enhanced, and the tinting strength of the iron oxide black is enhanced.
Description
Technical field
The present invention relates to a kind of preparation method of high tinting strength iron oxide black, belong to chemical color field.
Background technology
Iron pigment is as important inorganic color(ed)pigment, and its annual production occupies first of inorganic color(ed)pigment.Due to the reinforcement of world's environmental consciousness, the features such as inorganic iron series pigments is nontoxic with it, odorless, pollution-free constantly replace pigment dyestuff and the plumbous series such as red lead, lead-chrome yellow, the serial poisonous mineral dye of chromium.Iron oxide black due to chemical composition simple, nontoxic pollution-free, chemical stability is strong, is widely used in the fields such as building materials, coating, plastics, rubber.Along with the development of China's economy, the tinctorial property of market to iron oxide black pigment proposes more and more higher requirement, thus widens its range of application.
Summary of the invention
The object of the invention is to for the deficiencies in the prior art, a kind of preparation method of high tinting strength iron oxide black is provided.
The technical solution used in the present invention is as follows:
A kind of preparation method of high tinting strength iron oxide black, adopt the iron oxide black that sodium hydroxide oxidation style is obtained, the iron oxide black filter cake that direct use is not dried, add and be equivalent to the Silane coupling agent KH550 of iron oxide black filter cake weight 2-3% and the carbon black of 1.5-2.5%, 1500-2000rpm speed lapping 15-20 minute, then appropriate water making beating 20-30 minute is added, make the slurries that concentration is 40-50%, and add the polyoxyethylene glycol of slurry weight 0.4-0.6%, the nano-sized carbon of 0.3-0.4%, the complex lead salt stabilizer of 0.2-0.3%, stir 30-40 minute, 40 μm are less than again by colloidal mill defibrination to particle diameter, oven dry is beaten powder and is finished product.
Beneficial effect of the present invention:
The present invention first adopts Silane coupling agent KH550 and carbon black to grind iron oxide black filter cake, and carbon black has pigmentation, good stability, is combined with it by silane coupling agent, increases the combination between iron oxide black and carbon black, increases the tinting strength of iron oxide black.
。The iron oxide black stable performance that the present invention produces, tinting strength is high, temperature tolerance good, dispersed superior, has splendid fast light, weather resisteant, belongs to nontoxic and belongs to green environmental-friendly pigment.
Embodiment
A kind of preparation method of high tinting strength iron oxide black, adopt the iron oxide black that sodium hydroxide oxidation style is obtained, the iron oxide black filter cake that direct use is not dried, add and be equivalent to the Silane coupling agent KH550 of iron oxide black filter cake weight 2% and the carbon black of 2%, 2000rpm speed lapping 15 minutes, then add appropriate water to pull an oar 20 minutes, make the slurries that concentration is 50%, and add the polyoxyethylene glycol of slurry weight 0.5%, the nano-sized carbon of 0.4%, the complex lead salt stabilizer of 0.2%, stir 30 minutes, 40 μm are less than again by colloidal mill defibrination to particle diameter, oven dry is beaten powder and is finished product.
The present invention first adopts Silane coupling agent KH550 and carbon black to grind iron oxide black filter cake, and carbon black has pigmentation, good stability, is combined with it by silane coupling agent, increases the combination between iron oxide black and carbon black, increases the tinting strength of iron oxide black.
The iron oxide black product performance analysis data that the present embodiment is produced is as following table:
| Project | Index | Detected result |
| Fe 2O 3Content (%) | ≥85 | 88.6 |
| 105 DEG C of volatile matters (%) | ≤1.0 | 0.81 |
| Oil number (%) | 15-25 | 22.5 |
| Tinctorial strength (%) | 95-105 | 98.2 |
| Resistance to 200 DEG C/30min (△ E) | ≤1.0 | 0.86 |
Claims (1)
1. the preparation method of one kind high tinting strength iron oxide black, it is characterized in that: adopt the iron oxide black that sodium hydroxide oxidation style is obtained, the iron oxide black filter cake that direct use is not dried, add and be equivalent to the Silane coupling agent KH550 of iron oxide black filter cake weight 2-3% and the carbon black of 1.5-2.5%, 1500-2000rpm speed lapping 15-20 minute, then appropriate water making beating 20-30 minute is added, make the slurries that concentration is 40-50%, and add the polyoxyethylene glycol of slurry weight 0.4-0.6%, the nano-sized carbon of 0.3-0.4%, the complex lead salt stabilizer of 0.2-0.3%, stir 30-40 minute, 40 μm are less than again by colloidal mill defibrination to particle diameter, oven dry is beaten powder and is finished product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410846835.9A CN104559333A (en) | 2014-12-31 | 2014-12-31 | Preparation method of high tinting strength iron oxide black |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410846835.9A CN104559333A (en) | 2014-12-31 | 2014-12-31 | Preparation method of high tinting strength iron oxide black |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104559333A true CN104559333A (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410846835.9A Pending CN104559333A (en) | 2014-12-31 | 2014-12-31 | Preparation method of high tinting strength iron oxide black |
Country Status (1)
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| CN (1) | CN104559333A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103289438A (en) * | 2013-05-23 | 2013-09-11 | 铜陵瑞莱科技有限公司 | Method for preparing oxidation-resisting iron oxide black granules |
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2014
- 2014-12-31 CN CN201410846835.9A patent/CN104559333A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103289438A (en) * | 2013-05-23 | 2013-09-11 | 铜陵瑞莱科技有限公司 | Method for preparing oxidation-resisting iron oxide black granules |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150429 |