CN104371379A - Surface modification method for ultrafine aluminum hydroxide - Google Patents
Surface modification method for ultrafine aluminum hydroxide Download PDFInfo
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- CN104371379A CN104371379A CN201410530193.1A CN201410530193A CN104371379A CN 104371379 A CN104371379 A CN 104371379A CN 201410530193 A CN201410530193 A CN 201410530193A CN 104371379 A CN104371379 A CN 104371379A
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- aluminium hydroxide
- ultrafine aluminium
- coupling agent
- surface modification
- aluminum hydroxide
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Abstract
The invention belongs to the technical field of flame retardant synthesis, and relates to a surface modification method for ultrafine aluminum hydroxide. The surface modification method for the super fine aluminum hydroxide is as below: adding the superfine aluminum hydroxide to a ball mill; uniformly adding a silane coupling agent in the weight 0.6-2% of the superfine aluminum hydroxide into the ball mill in a high pressure spray way; under normal temperature, conducting ball milling, mixing and scattering to react the silane coupling agent with active -OH on the superfine aluminum hydroxide, so as to obtain the superfine aluminum hydroxide with surface modified by the silane coupling agent. The invention has the beneficial effects that the coupling agent in a high pressure spray form can evenly coats the aluminum hydroxide to reach good effect; modification on aluminum hydroxide by ball mill has the advantages of simple process, strong operability of equipment, low production cost and good product quality.
Description
Technical field
The invention belongs to fire-retardant FRW technical field, especially relate to a kind of method of ultrafine aluminium hydroxide surface modification.
Background technology
At present, aluminium hydroxide has become one of main selection of synthetic materials halogen-free flameproof formula, have nontoxic, non-volatile, do not separate out, the feature such as low price, there is good flame retardant resistance, smoke elimination function and relatively low decomposition temperature simultaneously, good fire-retardant matching is had with multiple polymers such as rubber, plastics, epoxy resin, but aluminium hydroxide and organic polymer poor compatibility, and can not be used for filling the higher polymkeric substance of processing temperature, therefore, aluminium hydroxide carries out modification and seems particularly important.
By to surface of aluminum hydroxide modification, aluminium hydroxide dispersiveness in the polymer can be improved, improve the rheological performance of the organic dispersing composite bodies system of aluminium hydroxide, improve mechanical property, increase the loading level of aluminium hydroxide in system.Surface modification makes the physics and chemistry character etc. of surface of aluminum hydroxide change, thus gives powder new function, and performance is improved.The method of surface of aluminum hydroxide modification is a lot, and as low-temperature plasma modified method, High Speed Airflow Impact, they also exist process and need Special Equipment, facility investment is large, shortcomings such as performance difficulty and be difficult to promote.
Summary of the invention
The present invention is directed to the deficiency of prior art, a kind of method of ultrafine aluminium hydroxide surface modification is provided.
Object of the present invention is mainly achieved by following technical proposals:
A kind of method of ultrafine aluminium hydroxide surface modification, the surface modifying method of described ultrafine aluminium hydroxide joins in ball mill by ultrafine aluminium hydroxide, in the mode of high-pressure fog, the silane coupling agent that weight is ultrafine aluminium hydroxide weight 0.6 ~ 2.0% is evenly joined in ball mill, at normal temperatures, carry out ball milling, mix, break up, make it and comparatively active-OH base generation chemical reaction on ultrafine aluminium hydroxide, the ultrafine aluminium hydroxide of silane coupling agent surface modification can be obtained.
A kind of method of ultrafine aluminium hydroxide surface modification, described silane coupling agent is one or both in vinyltrimethoxy silane, vinyltriethoxysilane, vinyl three (β-methoxy ethoxy) silane, make it and comparatively active-OH base generation chemical reaction on ultrafine aluminium hydroxide, the ultrafine aluminium hydroxide of silane coupling agent surface modification can be obtained.
The D50 size range of described ultrafine aluminium hydroxide is 1.5-2.5 micron.
A kind of method of ultrafine aluminium hydroxide surface modification, take the ultrafine aluminium hydroxide of certainweight, join and fill in the ball mill of ball-milling medium, the weight of ultrafine aluminium hydroxide is 50 ~ 100% of ball-milling medium weight, one or both in silane coupling agent are added by the mode of high-pressure fog, the add-on of silane coupling agent is 0.6 ~ 2.0% of ultrafine aluminium hydroxide weight, under normal temperature, 5 ~ 10h is mixed continuously in ball mill, sieve, after airflow milling is broken up, the good modified superfine aluminium hydroxide of hydrophobic performance can be obtained.
The invention has the beneficial effects as follows: coupling agent can even cladded aluminium hydroxide with the form of high-pressure fog, effective; Use ball mill modified aluminium hydroxide, technique is simple, and device operability is strong, and production cost is low, quality of finished product good.
Embodiment
Following embodiment is to further description of the present invention, but the present invention is not limited to embodiment proposed below.
Embodiment 1
Taking 800kg ultrafine aluminium hydroxide joins in feed bin, and the D50 granularity of ultrafine aluminium hydroxide is 1.5 ~ 2.0 microns; Open blanking reamer, ultrafine aluminium hydroxide joins in the ball mill filling 1500kg ball-milling medium by feed inlet of globe mill, in reinforced process, utilize high-pressure fog that 8kg vinyltrimethoxy silane is sprayed at ultrafine aluminium hydroxide surface, close opening for feed, open ball mill, after mixing 6h continuously under normal temperature, get rid of material, sieve, after airflow milling is broken up, the hydrophobic performance of product is fine, places and still do not sink in water one week under normal temperature.
Embodiment 2
Taking 1500kg ultrafine aluminium hydroxide joins in feed bin, and the D50 granularity of ultrafine aluminium hydroxide is 2.0 ~ 2.5 microns; Open blanking reamer, ultrafine aluminium hydroxide joins in the ball mill filling 1500kg ball-milling medium by feed inlet of globe mill, in reinforced process, utilize high-pressure fog that 12kg vinyltrimethoxy silane is sprayed at ultrafine aluminium hydroxide surface, close opening for feed, open ball mill, after mixing 5h continuously under normal temperature, get rid of material, sieve, after airflow milling is broken up, the hydrophobic performance of product is fine, places and still do not sink in water one week under normal temperature.
Embodiment 3
Taking 1500kg ultrafine aluminium hydroxide joins in feed bin, and the D50 granularity of ultrafine aluminium hydroxide is 2.0 ~ 2.5 microns; Open blanking reamer, ultrafine aluminium hydroxide joins in the ball mill filling 1500kg ball-milling medium by feed inlet of globe mill, in reinforced process, utilize high-pressure fog that the mixture that 12kg vinyltrimethoxy silane and vinyl three (β-methoxy ethoxy) silane mass ratio are 8:2 is sprayed at ultrafine aluminium hydroxide surface, close opening for feed, open ball mill, after mixing 8h continuously under normal temperature, get rid of material, sieve, the hydrophobic performance of product is fine, places and still do not sink in water one week under normal temperature.
Embodiment 4
Taking 1500kg ultrafine aluminium hydroxide joins in feed bin, and the D50 granularity of ultrafine aluminium hydroxide is 2.0 ~ 2.5 microns, open blanking reamer, ultrafine aluminium hydroxide joins in the ball mill filling 1500kg ball-milling medium by feed inlet of globe mill, in reinforced process, utilize high-pressure fog that 6kg vinyltriethoxysilane is sprayed at ultrafine aluminium hydroxide surface, close opening for feed, open ball mill, after mixing 1h continuously under normal temperature, open opening for feed, utilize high-pressure fog that 6kg vinyltrimethoxy silane is sprayed at ultrafine aluminium hydroxide surface, close opening for feed, open ball mill, after mixing 5h continuously under normal temperature, get rid of material, sieve, the hydrophobic performance of product is fine, place under normal temperature and still do not sink in water one week.
Claims (4)
1. the method for a ultrafine aluminium hydroxide surface modification, it is characterized in that: the surface modification of described ultrafine aluminium hydroxide joins in ball mill by ultrafine aluminium hydroxide, in the mode of high-pressure fog, the silane coupling agent example that weight is ultrafine aluminium hydroxide weight 0.6 ~ 2.0% is evenly joined in ball mill, at normal temperatures, carry out ball milling, mix, break up, make it and comparatively active-OH base generation chemical reaction on ultrafine aluminium hydroxide, the ultrafine aluminium hydroxide of silane coupling agent surface modification can be obtained.
2. the method for a kind of ultrafine aluminium hydroxide surface modification as claimed in claim 1, it is characterized in that: described silane coupling agent is the mixture of one or both arbitrary proportions in vinyltrimethoxy silane, vinyltriethoxysilane, vinyl three (β-methoxy ethoxy) silane, make it and comparatively active-OH base generation chemical reaction on ultrafine aluminium hydroxide, the ultrafine aluminium hydroxide of silane coupling agent surface modification can be obtained.
3. the method for a kind of ultrafine aluminium hydroxide surface modification as claimed in claim 1 or 2, is characterized in that: the D50 size range of described ultrafine aluminium hydroxide is 1.5-2.5 micron.
4. the method for a kind of ultrafine aluminium hydroxide surface modification as claimed in claim 1 or 2, it is characterized in that: the ultrafine aluminium hydroxide taking certainweight, join and fill in the ball mill of ball-milling medium, the weight of ultrafine aluminium hydroxide is 50 ~ 100% of ball-milling medium weight, one or both in silane coupling agent are added by the mode of high-pressure fog, the add-on of silane coupling agent is 0.6 ~ 2.0% of ultrafine aluminium hydroxide weight, under normal temperature, 5 ~ 10h is mixed continuously in ball mill, sieve, after airflow milling is broken up, the good modified superfine aluminium hydroxide of hydrophobic performance can be obtained.
Priority Applications (1)
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| CN201410530193.1A CN104371379A (en) | 2014-10-10 | 2014-10-10 | Surface modification method for ultrafine aluminum hydroxide |
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| CN201410530193.1A CN104371379A (en) | 2014-10-10 | 2014-10-10 | Surface modification method for ultrafine aluminum hydroxide |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105085790A (en) * | 2015-09-10 | 2015-11-25 | 湖南工学院 | Ingrain fireproofing type acrylate emulsion as well as preparation method and application thereof |
| CN105504888A (en) * | 2015-12-29 | 2016-04-20 | 江苏创景科技有限公司 | Silanization treatment method of aluminum hydroxide filler |
| CN107400259A (en) * | 2017-06-08 | 2017-11-28 | 靖江市晨阳化工有限公司 | A kind of method that Physical prepares low-smoke halogen-free polyolefin fire retardant aluminium hydroxide |
| CN109049464A (en) * | 2018-06-29 | 2018-12-21 | 南通嘉得利安全用品有限公司 | Arc resistant gloves and its production method |
| CN109400128A (en) * | 2018-11-08 | 2019-03-01 | 浙江皓翔矿业有限公司 | A kind of aluminum-carbon refractory material of the powder containing pyrophillite and preparation method thereof |
| CN111732871A (en) * | 2020-07-07 | 2020-10-02 | 威海合纵新材料科技有限公司 | Light high-heat-resistance coating and preparation method thereof |
| CN112480680A (en) * | 2020-12-04 | 2021-03-12 | 矽时代材料科技股份有限公司 | Heat-conducting silicone grease and preparation method thereof |
| CN114618646A (en) * | 2022-02-07 | 2022-06-14 | 中铝山东新材料有限公司 | Preparation method of superfine aluminum hydroxide micro powder |
| CN114702840A (en) * | 2022-04-21 | 2022-07-05 | 深圳市海扬粉体科技有限公司 | Surface organic modified aluminum hydroxide powder and preparation method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001302234A (en) * | 2000-04-24 | 2001-10-31 | Showa Denko Kk | Method for treating surface of aluminum hydroxide |
| CN1814698A (en) * | 2005-02-05 | 2006-08-09 | 吕世发 | Method for making cable-material flame-retardant of natural brucite magnesium hydrate |
| CN101067085A (en) * | 2007-06-15 | 2007-11-07 | 海城精华矿产有限公司 | Prepn of natural magnesium hydroxide for inorganic no-halogen fire retardant |
| CN101597499A (en) * | 2009-07-02 | 2009-12-09 | 福建陶金峰新材料有限公司 | A kind of preparation method of environment-friendly composite inorganic fire retardant |
| CN102031025A (en) * | 2010-10-20 | 2011-04-27 | 中科院广州化学有限公司 | Method for preparing silicone oil surface modified aluminium hydroxide flame retardant |
| CN102352130A (en) * | 2011-08-17 | 2012-02-15 | 太原理工大学 | Ball milling modification method for metal hydroxide fire retardant |
| CN102675921A (en) * | 2012-05-11 | 2012-09-19 | 上虞市精亮工贸有限公司 | Water-phase thinning modification method of halogen-free flame retardant |
| CN103265826A (en) * | 2013-06-13 | 2013-08-28 | 苏州新区华士达工程塑胶有限公司 | Inorganic flame retardant surface modification method |
| CN103342902A (en) * | 2013-07-26 | 2013-10-09 | 资源县天盛新型材料开发有限公司 | Hydrophobic quartz micro powder as well as integrated production process and application thereof |
| CN103374241A (en) * | 2012-04-17 | 2013-10-30 | 鲍联 | Integrated powder modification production process |
-
2014
- 2014-10-10 CN CN201410530193.1A patent/CN104371379A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001302234A (en) * | 2000-04-24 | 2001-10-31 | Showa Denko Kk | Method for treating surface of aluminum hydroxide |
| CN1814698A (en) * | 2005-02-05 | 2006-08-09 | 吕世发 | Method for making cable-material flame-retardant of natural brucite magnesium hydrate |
| CN101067085A (en) * | 2007-06-15 | 2007-11-07 | 海城精华矿产有限公司 | Prepn of natural magnesium hydroxide for inorganic no-halogen fire retardant |
| CN101597499A (en) * | 2009-07-02 | 2009-12-09 | 福建陶金峰新材料有限公司 | A kind of preparation method of environment-friendly composite inorganic fire retardant |
| CN102031025A (en) * | 2010-10-20 | 2011-04-27 | 中科院广州化学有限公司 | Method for preparing silicone oil surface modified aluminium hydroxide flame retardant |
| CN102352130A (en) * | 2011-08-17 | 2012-02-15 | 太原理工大学 | Ball milling modification method for metal hydroxide fire retardant |
| CN103374241A (en) * | 2012-04-17 | 2013-10-30 | 鲍联 | Integrated powder modification production process |
| CN102675921A (en) * | 2012-05-11 | 2012-09-19 | 上虞市精亮工贸有限公司 | Water-phase thinning modification method of halogen-free flame retardant |
| CN103265826A (en) * | 2013-06-13 | 2013-08-28 | 苏州新区华士达工程塑胶有限公司 | Inorganic flame retardant surface modification method |
| CN103342902A (en) * | 2013-07-26 | 2013-10-09 | 资源县天盛新型材料开发有限公司 | Hydrophobic quartz micro powder as well as integrated production process and application thereof |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105085790A (en) * | 2015-09-10 | 2015-11-25 | 湖南工学院 | Ingrain fireproofing type acrylate emulsion as well as preparation method and application thereof |
| CN105504888A (en) * | 2015-12-29 | 2016-04-20 | 江苏创景科技有限公司 | Silanization treatment method of aluminum hydroxide filler |
| CN107400259A (en) * | 2017-06-08 | 2017-11-28 | 靖江市晨阳化工有限公司 | A kind of method that Physical prepares low-smoke halogen-free polyolefin fire retardant aluminium hydroxide |
| CN109049464A (en) * | 2018-06-29 | 2018-12-21 | 南通嘉得利安全用品有限公司 | Arc resistant gloves and its production method |
| CN109400128A (en) * | 2018-11-08 | 2019-03-01 | 浙江皓翔矿业有限公司 | A kind of aluminum-carbon refractory material of the powder containing pyrophillite and preparation method thereof |
| CN109400128B (en) * | 2018-11-08 | 2021-11-30 | 浙江皓翔矿业有限公司 | Pyrophyllite powder-containing aluminum-carbon refractory material and preparation method thereof |
| CN111732871A (en) * | 2020-07-07 | 2020-10-02 | 威海合纵新材料科技有限公司 | Light high-heat-resistance coating and preparation method thereof |
| CN111732871B (en) * | 2020-07-07 | 2021-10-12 | 威海合纵新材料科技有限公司 | Light high-heat-resistance coating and preparation method thereof |
| CN112480680A (en) * | 2020-12-04 | 2021-03-12 | 矽时代材料科技股份有限公司 | Heat-conducting silicone grease and preparation method thereof |
| CN114618646A (en) * | 2022-02-07 | 2022-06-14 | 中铝山东新材料有限公司 | Preparation method of superfine aluminum hydroxide micro powder |
| CN114702840A (en) * | 2022-04-21 | 2022-07-05 | 深圳市海扬粉体科技有限公司 | Surface organic modified aluminum hydroxide powder and preparation method thereof |
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Address after: 471899, Henan, Luoyang Province Chengguan Town, Xin'an County Village Applicant after: LUOYANG ZHONGCHAO NEW MATERIAL SHARES CO., LTD. Address before: 471800, Henan, Luoyang Province Chengguan Town, Xin'an County Village Applicant before: Luoyang Zhongchao Nonmetal Material Co., Ltd. |
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Application publication date: 20150225 |
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