CN104387805A - Special surface treatment process for modified superfine natural barium sulfate for powder coating - Google Patents
Special surface treatment process for modified superfine natural barium sulfate for powder coating Download PDFInfo
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- CN104387805A CN104387805A CN201410656071.7A CN201410656071A CN104387805A CN 104387805 A CN104387805 A CN 104387805A CN 201410656071 A CN201410656071 A CN 201410656071A CN 104387805 A CN104387805 A CN 104387805A
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- barium sulfate
- powder
- treatment process
- surface treatment
- powder coating
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Abstract
The invention discloses a special surface treatment process for modified superfine natural barium sulfate for a powder coating, relates to the technical field of production of powder coatings, and particularly relates to a production technology of an additive of a coating. The surface treatment process comprises the following steps: heating raw barium sulfate powder, adding stearic acid, stirring, then adding a coupling agent, performing heat preservation, stirring and discharging. According to the surface treatment process disclosed by the invention, two treating agents are adopted to perform composite treatment based on an original treating agent so that different types of substances are organically combined during a production process of the powder coating, and the product quality and stability are greatly improved.
Description
Technical field
The present invention relates to the production technology of the additive of the production technical field of powder coating, particularly coating.
Background technology
Need barium sulfate as a kind of modified fillers therefor when producing powder coating.Modified barium sulphate product surface-modifying agent used in the past only has one, also will carry out surface treatment to it, and treatment effect is bad, have impact on quality product and stability when the powder coating process for processing in later stage.
Summary of the invention
The present invention seeks to propose a kind of that facilitate later stage powder coating production, that coating products quality stability can be improved dedicated modified ultra-fine native sulfate of barium process of surface treatment of powder coating.
The present invention adds stearic acid after first being heated up by former for barium sulfate powder, after stirring, then adds coupling agent, then discharging after insulated and stirred.
Principle of work: treatment agent, by the high-speed stirring of surface processor, is evenly wrapped in powder surface by the present invention, simultaneously by friction generates heat, keeps temperature.
For powder coating Industry, the present invention is on the basis of original treatment agent, adopt two kinds for the treatment of agents to carry out Combined Processing, make it be combined by dissimilar material in the process of manufacture of powder coating, quality product and stability are improved a lot.
In addition, the present invention adds stearic acid after former for barium sulfate powder is warming up to 100 DEG C.When temperature is raised to 100 DEG C, the moisture content in former powder can be removed, to guarantee that in product, water ratio is minimum.
In order to improve degree of modification, particle diameter≤10 μm of the former powder of described barium sulfate.As filler, can increase the gloss of powder coating under this particle diameter, surface smoothness is good.
The former powder of described barium sulfate and stearic mixing quality are than being 100:0.5 ~ 1.0.Adopt this ratio mixing energy that barium sulfate powder is well wrapped by, do not waste again simultaneously.
Temperature adds coupling agent after rising to 125 DEG C.The coated stearic acid of the first step will reach 125 DEG C, and now stearic acid is completely coated.
The former powder of described barium sulfate is 100:0.5 ~ 1.0 with the mixing quality ratio of coupling agent.This ratio can make barium sulfate powder well be wrapped by, and does not waste again simultaneously.
Embodiment
One, modifying processing step, starting material, the isoparametric detailed introduction of charging capacity:
1, pre-treatment: add 100kg, particle diameter D in surface processor
97the former powder of barium sulfate of≤10 μm, by surface processor heating unit, heats up former for the barium sulfate in it powder.
2, after the former powder of barium sulfate is warming up to 100 DEG C, former powder is kept in surface processor, to add 0.5 ~ 1.0kg surface treatment agent at 100 DEG C of temperature---stearic acid, turn on agitator, carries out Surface coating.
3, after temperature of charge in surface processor rises to 125 DEG C, then 0.5 ~ 1.0kg treatment agent is added in surface processor---coupling agent, continues stir and keep compound combination treatment discharging after 2 ~ 5 minutes under 125 DEG C of conditions.
Two, to the Product Validation result after discharging:
1, the product adopting the inventive method to produce is dispersed better, and be convenient to downstream client and use, oil number is low, can each component in powder coating organically be combined.
2, this product is carried out application of paints, use rear surface smoothness good, flow leveling is good, increases the impact resistance of paint film, improves the advantages such as hardness of paint film.
Therefore product of the present invention at powder coating, quality product and stability all increase after application.
Claims (6)
1. the dedicated modified ultra-fine native sulfate of barium process of surface treatment of powder coating, is characterized in that first adding stearic acid by after former for barium sulfate powder intensification, after stirring, then adds coupling agent, then discharging after insulated and stirred.
2. treatment process according to right 1, adds stearic acid after it is characterized in that former for barium sulfate powder is warming up to 100 DEG C.
3. treatment process according to right 2, is characterized in that particle diameter≤10 μm of the former powder of described barium sulfate.
4. treatment process according to right 2, is characterized in that the former powder of described barium sulfate and stearic mixing quality are than being 100:0.5 ~ 1.0.
5. treatment process according to right 1 or 2 or 3 or 4, is characterized in that temperature adds coupling agent after rising to 125 DEG C.
6. treatment process according to right 5, is characterized in that the former powder of described barium sulfate is 100:0.5 ~ 1.0 with the mixing quality ratio of coupling agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410656071.7A CN104387805A (en) | 2014-11-18 | 2014-11-18 | Special surface treatment process for modified superfine natural barium sulfate for powder coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410656071.7A CN104387805A (en) | 2014-11-18 | 2014-11-18 | Special surface treatment process for modified superfine natural barium sulfate for powder coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104387805A true CN104387805A (en) | 2015-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410656071.7A Pending CN104387805A (en) | 2014-11-18 | 2014-11-18 | Special surface treatment process for modified superfine natural barium sulfate for powder coating |
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| CN (1) | CN104387805A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106752103A (en) * | 2016-12-14 | 2017-05-31 | 广东圆融新材料有限公司 | A kind of preprocess method of blanc fixe |
| CN111234565A (en) * | 2020-03-16 | 2020-06-05 | 库车塔北泥浆材料有限公司 | Modification method of activated barite powder |
| CN111574853A (en) * | 2020-06-09 | 2020-08-25 | 江苏群鑫粉体科技股份有限公司 | Modified barium sulfate for heavy-duty anticorrosive paint |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1970662A (en) * | 2006-11-09 | 2007-05-30 | 上海大学 | Highly corrosiveness-resistant nanometer composite epoxy resin paint preparation method |
-
2014
- 2014-11-18 CN CN201410656071.7A patent/CN104387805A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1970662A (en) * | 2006-11-09 | 2007-05-30 | 上海大学 | Highly corrosiveness-resistant nanometer composite epoxy resin paint preparation method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106752103A (en) * | 2016-12-14 | 2017-05-31 | 广东圆融新材料有限公司 | A kind of preprocess method of blanc fixe |
| CN111234565A (en) * | 2020-03-16 | 2020-06-05 | 库车塔北泥浆材料有限公司 | Modification method of activated barite powder |
| CN111574853A (en) * | 2020-06-09 | 2020-08-25 | 江苏群鑫粉体科技股份有限公司 | Modified barium sulfate for heavy-duty anticorrosive paint |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 225253 Jiangsu Province, Yangzhou city Jiangdu District Wu Jian Zhen Industrial Park Applicant after: JIANGSU QUNXIN POWDER TECHNOLOGY CO., LTD. Address before: 225253 Jiangsu Province, Yangzhou city Jiangdu District Wu Jian Zhen Industrial Park Applicant before: JIANGSU QUNXIN POWDER MATERIAL CO., LTD. |
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Free format text: CORRECT: APPLICANT; FROM: JIANGSU QUNXIN POWDER MATERIAL CO., LTD. TO: JIANGSU QUNXIN POWDER TECHNOLOGY CO., LTD. |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150304 |