CN104059390B - Modified calcium carbonate with high specific surface area and preparation method thereof - Google Patents
Modified calcium carbonate with high specific surface area and preparation method thereof Download PDFInfo
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- CN104059390B CN104059390B CN201410228881.2A CN201410228881A CN104059390B CN 104059390 B CN104059390 B CN 104059390B CN 201410228881 A CN201410228881 A CN 201410228881A CN 104059390 B CN104059390 B CN 104059390B
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Abstract
The invention discloses a modified calcium carbonate with a high specific surface area. The modified calcium carbonate is characterized by being prepared from the following raw materials in parts by weight: 90 to 95 parts of calcium carbonate, 4 to 6 parts of methyl methacrylate, 5 to 7 parts of melamine resin, 3 to 4 parts of propanediol sebacate polyester, 2 to 3 parts of cocoanut active charcoal, 2 to 3 parts of coal ash, 1 to 1.5 parts of ammonium bicarbonate, 2 to 3 parts of turpentine, 1 to 2 parts of polysorbate 80 and 2.5 to 3.5 parts of modified titanium dioxide. Based on the improvement of a production process, the calcium carbonate has the good mechanical property; the modified titanium dioxide is added after the calcium carbonate is ground, so that the dispersion effect of the calcium carbonate is increased. The granularity of the modified calcium carbonate is refined, so that the modified calcium carbonate has the high specific surface area so as to increase an absorption effect. The modified calcium carbonate is stable in quality and low in production cost, thereby being suitable for serving as various industrial filling materials.
Description
Technical field
The present invention relates to industrial filler field, particularly a kind of modified calcium carbonate with high-specific surface area and preparation method thereof.
Background technology
Calcium carbonate is a kind of very important functional inorganic filling, is widely used in the industrial circles such as plastics, rubber, coating and papermaking.But, calcium carbonate particles surface arrangement has the hydroxyl of strongly hydrophilic, show as alkalescence, different with the interfacial property of organic polymer substrate material, poor compatibility, be difficult to be uniformly dispersed in substrate material and form strong bonding force with substrate material, cause the boundary defect between two materials, make some mechanical properties decrease of matrix material.Change the performance of traditional calcium carbonate product, improving its application performance to meet the needs of novel material, development of new techniques, is calcium carbonate industry urgent problem.
Summary of the invention
The object of this invention is to provide a kind of modified calcium carbonate with high-specific surface area and preparation method thereof.
In order to realize object of the present invention, the present invention is by following scheme implementation:
There is a modified calcium carbonate for high-specific surface area, be made up of the raw material of following weight part: calcium carbonate 90-95, methyl methacrylate 4-6, melamine resin 5-7, sebacic acid propanediol polyester 3-4, cocoanut active charcoal 2-3, flyash 2-3, bicarbonate of ammonia 1-1.5, turps 2-3, Polysorbate 80 1-2, modifying titanium dioxide 2.5-3.5;
Described modifying titanium dioxide is made up of the raw material of following weight part: nano titanium oxide 50-60, mica powder 2-4, pulverizing zeolite molecular sieve 4-6, ferrocene 5-7, mineral fibre 3-4, trisodium phosphate 2-3, pure-acrylic emulsion 3-4, epoxyoleic acid butyl ester 3-5, phosphoric acid ester 2-4, water 50-60; Preparation method be first add pure-acrylic emulsion, nano titanium oxide, mica powder, pulverizing zeolite molecular sieve, mineral fibre, water stirs, form suspension, then ferrocene, epoxyoleic acid butyl ester is added immediately, be heated to 120-140 DEG C, mix and blend 25-35 minute, is cooled to room temperature, then all the other remaining components are added, stir under 1200-1500 rev/min of condition, dry at 60-70 DEG C, be ground into ultrafine powder and get final product.
A kind of modified calcium carbonate with high-specific surface area of the present invention, be made up of following concrete steps:
(1) calcium carbonate, cocoanut active charcoal, flyash, bicarbonate of ammonia, Polysorbate 80 are mixed and add in shredder, with the speed of 1500-2000 rev/min grinding 15-20 minute, take out and dry, pulverize porphyrize, cross 100-200 mesh sieve, obtain mixed powder stand-by;
(2) melamine resin, turps are put into mixing tank, be warming up between 80-90 DEG C, mix and blend half an hour, continue to add methyl methacrylate, sebacic acid propanediol polyester, continue to be warming up to 130-160 DEG C, mix and pour out after 15-20 minute, obtain material modified;
(3) mixed powder is mixed with material modified, add suitable quantity of water, stir and grind 2-3 hour, form suspension stand-by;
(4) suspension is mixed with modifying titanium dioxide, stir 10-15 minute under 800-1000 rev/min, dry, be ground into 1200-1400 order powder and get final product.
The invention has the beneficial effects as follows: the present invention is by the improvement of production technique, calcium carbonate is made not only to have good mechanical property, at ground rear interpolation modifying titanium dioxide, add the dispersion effect of calcium carbonate, modified calcium carbonate of the present invention, granularity is refinement to some extent, there is high specific surface area, add adsorption effect, constant product quality of the present invention, production cost is low, is suitable as various industrial filler.
Specific embodiments
Below by specific examples, the present invention is described in detail.
There is a modified calcium carbonate for high-specific surface area, be made up of the raw material of following weight part (kilogram): calcium carbonate 90, methyl methacrylate 4, melamine resin 5, sebacic acid propanediol polyester 3, cocoanut active charcoal 2, flyash 2, bicarbonate of ammonia 1, turps 2, Polysorbate 80 1, modifying titanium dioxide 2.5;
Described modifying titanium dioxide is made up of the raw material of following weight part (kilogram): nano titanium oxide 50, mica powder 2, pulverizing zeolite molecular sieve 4, ferrocene 5, mineral fibre 3, trisodium phosphate 2, pure-acrylic emulsion 3, epoxyoleic acid butyl ester 3, phosphoric acid ester 2, water 50; Preparation method be first add pure-acrylic emulsion, nano titanium oxide, mica powder, pulverizing zeolite molecular sieve, mineral fibre, water stirs, form suspension, then ferrocene, epoxyoleic acid butyl ester is added immediately, be heated to 120-140 DEG C, mix and blend 25-35 minute, is cooled to room temperature, then all the other remaining components are added, stir under 1200-1500 rev/min of condition, dry at 60-70 DEG C, be ground into ultrafine powder and get final product.
A kind of modified calcium carbonate with high-specific surface area of the present invention, be made up of following concrete steps:
(1) calcium carbonate, cocoanut active charcoal, flyash, bicarbonate of ammonia, Polysorbate 80 are mixed and add in shredder, with the speed of 1500-2000 rev/min grinding 15-20 minute, take out and dry, pulverize porphyrize, cross 100-200 mesh sieve, obtain mixed powder stand-by;
(2) melamine resin, turps are put into mixing tank, be warming up between 80-90 DEG C, mix and blend half an hour, continue to add methyl methacrylate, sebacic acid propanediol polyester, continue to be warming up to 130-160 DEG C, mix and pour out after 15-20 minute, obtain material modified;
(3) mixed powder is mixed with material modified, add suitable quantity of water, stir and grind 2-3 hour, form suspension stand-by;
(4) suspension is mixed with modifying titanium dioxide etc., stir 10-15 minute under 800-1000 rev/min, dry, be ground into 1200-1400 order powder and get final product.
The Performance Detection of modified calcium carbonate of the present invention and ordinary calcium carbonate is compared as follows:
First measure the tap density of the forward and backward calcium carbonate of modification, then join in polyvinyl chloride resin in the ratio of 15% respectively by calcium carbonate good for modification and unmodified water-ground limestone, make sample, the mechanical property respectively both test, comparing result sees the following form:
As can be seen from the above table, the loose bulk density of modified calcium carbonate diminishes, and illustrates that calcium carbonate split fully disperses, and it can also be seen that every mechanical property of modified calcium carbonate is all improved.
Claims (2)
1. one kind has the modified calcium carbonate of high-specific surface area, it is characterized in that, be made up of the raw material of following weight part: calcium carbonate 90-95, methyl methacrylate 4-6, melamine resin 5-7, sebacic acid propanediol polyester 3-4, cocoanut active charcoal 2-3, flyash 2-3, bicarbonate of ammonia 1-1.5, turps 2-3, Polysorbate 80 1-2, modifying titanium dioxide 2.5-3.5;
Described modifying titanium dioxide is made up of the raw material of following weight part: nano titanium oxide 50-60, mica powder 2-4, pulverizing zeolite molecular sieve 4-6, ferrocene 5-7, mineral fibre 3-4, trisodium phosphate 2-3, pure-acrylic emulsion 3-4, epoxyoleic acid butyl ester 3-5, phosphoric acid ester 2-4, water 50-60; Preparation method be first add pure-acrylic emulsion, nano titanium oxide, mica powder, pulverizing zeolite molecular sieve, mineral fibre, water stirs, form suspension, then ferrocene, epoxyoleic acid butyl ester is added immediately, be heated to 120-140 DEG C, mix and blend 25-35 minute, is cooled to room temperature, then all the other remaining components are added, stir under 1200-1500 rev/min of condition, dry at 60-70 DEG C, be ground into ultrafine powder and get final product.
2. a kind of modified calcium carbonate with high-specific surface area according to claim 1, is characterized in that, be made up of following concrete steps:
(1) calcium carbonate, cocoanut active charcoal, flyash, bicarbonate of ammonia, Polysorbate 80 are mixed and add in shredder, with the speed of 1500-2000 rev/min grinding 15-20 minute, take out and dry, pulverize porphyrize, cross 100-200 mesh sieve, obtain mixed powder stand-by;
(2) melamine resin, turps are put into mixing tank, be warming up between 80-90 DEG C, mix and blend half an hour, continue to add methyl methacrylate, sebacic acid propanediol polyester, continue to be warming up to 130-160 DEG C, mix and pour out after 15-20 minute, obtain material modified;
(3) mixed powder is mixed with material modified, add suitable quantity of water, stir and grind 2-3 hour, form suspension stand-by;
(4) suspension is mixed with modifying titanium dioxide, stir 10-15 minute under 800-1000 rev/min, dry, be ground into 1200-1400 order powder and get final product.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104356691A (en) * | 2014-09-28 | 2015-02-18 | 安徽盛佳彩印包装有限公司 | Modified calcium carbonate with hydrophobic, oleophylic and moistureproof effects and preparation method thereof |
| CN104312213A (en) * | 2014-09-28 | 2015-01-28 | 安徽省温禾木业有限公司 | Multifunctional environment-friendly modified calcium carbonate and preparation method thereof |
| CN105111793A (en) * | 2015-08-21 | 2015-12-02 | 池州凯尔特纳米科技有限公司 | Modified calcium carbonate having sterilization and deodorization effects and preparation method thereof |
| CN106280555A (en) * | 2016-08-05 | 2017-01-04 | 中玺新材料（安徽）有限公司 | A kind of high stability composite calcium carbonate and preparation method thereof |
| CN106221294A (en) * | 2016-08-05 | 2016-12-14 | 中玺新材料（安徽）有限公司 | A kind of insulation composite calcium carbonate and preparation method thereof |
| CN109453733A (en) * | 2018-10-10 | 2019-03-12 | 深圳先进技术研究院 | High-specific surface area modified calcium carbonate filtrate and preparation method thereof and a kind of composite material |
Citations (4)
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|---|---|---|---|---|
| JPS61106673A (en) * | 1984-10-30 | 1986-05-24 | Toyo Denka Kogyo Kk | Improved easily dispersible calcium carbonate composite pigment |
| US5330953A (en) * | 1992-06-20 | 1994-07-19 | Tioxide Specialties Limited | Preparation of anatase titanium dioxide |
| US6099634A (en) * | 1997-02-28 | 2000-08-08 | Titan Kogyo Kabushiki Kaisha | Fan- or disk-shaped titanium oxide particles, processes for production thereof and uses thereof |
| JP2002510737A (en) * | 1998-04-03 | 2002-04-09 | アイメリーズ ピグメンツ， インコーポレーテッド | Precipitated calcium carbonate and its manufacturing method and use |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61106673A (en) * | 1984-10-30 | 1986-05-24 | Toyo Denka Kogyo Kk | Improved easily dispersible calcium carbonate composite pigment |
| US5330953A (en) * | 1992-06-20 | 1994-07-19 | Tioxide Specialties Limited | Preparation of anatase titanium dioxide |
| US6099634A (en) * | 1997-02-28 | 2000-08-08 | Titan Kogyo Kabushiki Kaisha | Fan- or disk-shaped titanium oxide particles, processes for production thereof and uses thereof |
| JP2002510737A (en) * | 1998-04-03 | 2002-04-09 | アイメリーズ ピグメンツ， インコーポレーテッド | Precipitated calcium carbonate and its manufacturing method and use |
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Denomination of invention: Modified calcium carbonate with high specific surface area and its preparation method Effective date of registration: 20220610 Granted publication date: 20150701 Pledgee: Anhui Shitai Rural Commercial Bank Co.,Ltd. Pledgor: CHIZHOU KAIERTE NANO TECHNOLOGY Co.,Ltd. Registration number: Y2022980007427 |