CN104892981A - Activated calcium carbonate with good dispersity - Google Patents
Activated calcium carbonate with good dispersity Download PDFInfo
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- CN104892981A CN104892981A CN201510265959.2A CN201510265959A CN104892981A CN 104892981 A CN104892981 A CN 104892981A CN 201510265959 A CN201510265959 A CN 201510265959A CN 104892981 A CN104892981 A CN 104892981A
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- calcium carbonate
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- stearic acid
- activated calcium
- good dispersity
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Abstract
The invention discloses activated calcium carbonate with good dispersity. The activated calcium carbonate is prepared from the following raw materials in parts by weight: 100-120 parts of calcium carbonate, 1-2 parts of ethylene bis stearamide, 3-5 parts of tripropylene glycol biacrylic ester, 1-2 parts of dioctyl maleate, 0.2-0.4 part of tristearin, 1-2 parts of amino silicon oil, 4.3-6.5 parts of stearic acid, 1-2 parts of sodium dodecyl benzene sulfonate, 5-8 parts of titanium dioxide, 1-2 parts of chitosan and a proper amount of water.
Description
Technical field
The present invention relates to calcium carbonate field, is exactly a kind of activated Calcium carbonate of good dispersity.
Background technology
Activated Calcium carbonate take calcium carbonate as base-material, adopts polyfunctional surfactant and composite efficient processing aid, carry out modified active process form inorganic powder surface.Calcium carbonate powder after modification, surface forms a kind of special cladding structure, significantly can improve the dispersiveness in the polymer matrixs such as polyolefine and affinity, and produce interface interaction between energy and polymer matrix, thus improve the resistance to impact shock of goods, be a kind of incremental filling additive of excellent property.
Summary of the invention
The object of the present invention is to provide a kind of activated Calcium carbonate of good dispersity.
Above-mentioned purpose is realized by following scheme:
A kind of activated Calcium carbonate of good dispersity, it is characterized in that: it is obtained by the raw material of following weight parts: calcium carbonate 100-120, ethylene bis stearamide 1-2, tripropylene glycol diacrylate 3-5, dioctyl maleate 1-2, Tristearoylglycerol 0.2-0.4, amido silicon oil 1-2, and stearic acid 4.3-6.5, Sodium dodecylbenzene sulfonate 1-2, titanium dioxide 5-8, chitosan 1-2, water are appropriate.
The activated Calcium carbonate of described a kind of good dispersity, is characterized in that: preparation method comprises the following steps:
(1) after calcium carbonate and suitable quantity of water being mixed, then add ethylene bis stearamide, tripropylene glycol diacrylate, dioctyl maleate, stir, then grind 1-2 hour, obtain modified suspension for subsequent use;
(2) titanium dioxide is joined in appropriate amount of deionized water, after stirring at 40-45 DEG C, then chitosan, Sodium dodecylbenzene sulfonate are added wherein, stir at 45-50 DEG C, obtain combination solution;
(3) modified suspension and combination solution are mixed, ball milling mixes and obtains mixed slurry, adds all the other raw materials except stearic acid, reacts 50-60min at 35-38 DEG C;
(4) dry 30-60h at 50-60 DEG C, step (3) gained reacted slurry, after vacuum-drying at 80-100 DEG C, obtain compound calcium carbonate powder;
(5) be placed on rotary drum by step (4) gained compound calcium carbonate powder, preheating 15-25min at 40-50 rev/min lower 40-45 DEG C, then heated by stearic acid, atomization, is evenly sprayed on compound calcium carbonate powder, and 40-50 rev/min is stirred 10-15min simultaneously, to obtain final product.
Beneficial effect of the present invention is:
The present invention once disperses calcium carbonate by adding ethylene bis stearamide, dispersed stirring modification simultaneously, composite with titanium dioxide again, make that titanium dioxide is even must be scattered in calcium carbonate surface, add Tristearoylglycerol etc. again and carry out twice dispersing, effectively prevent the autohemagglutination of miniaturization particle, increase its consistency in plastics, rubber and dispersiveness; The present invention adopts the mode of atomizing spray to make use of stearic acid cmpletely, adopts vacuum drying method, makes to avoid compound powder secondary agglomeration.The product application that the present invention obtains is in PVC plastic, because the properties-correcting agent of its surface chemistry bonding and PVC plastic have excellent compatibility, show strong interior lubrication, thus weaken the intermolecular reactive force of PVC, system rheological performance is changed, can extruded velocity be improved, make the smooth exquisiteness of products appearance; Also illustrate under equal conditions, modified calcium carbonate can increase loading level, also can reach well cost-saving effect simultaneously.
Embodiment
A kind of activated Calcium carbonate of good dispersity, it is obtained by the raw material of following weight (kg): calcium carbonate 120, ethylene bis stearamide 2, tripropylene glycol diacrylate 3, dioctyl maleate 2, Tristearoylglycerol 0.4, amido silicon oil 1, stearic acid 6.5, Sodium dodecylbenzene sulfonate 2, titanium dioxide 5, chitosan 1, water are appropriate.
The activated Calcium carbonate of described a kind of good dispersity, preparation method comprises the following steps:
(1) after calcium carbonate and suitable quantity of water being mixed, then add ethylene bis stearamide, tripropylene glycol diacrylate, dioctyl maleate, stir, then grind 1 hour, obtain modified suspension for subsequent use;
(2) titanium dioxide is joined in appropriate amount of deionized water, after stirring at 45 DEG C, then chitosan, Sodium dodecylbenzene sulfonate are added wherein, stir at 45 DEG C, obtain combination solution;
(3) modified suspension and combination solution are mixed, ball milling mixes and obtains mixed slurry, adds all the other raw materials except stearic acid, reacts 50min at 35 DEG C;
(4) dry 50h at 50 DEG C, the reacted slurry of step (3) gained, after vacuum-drying at 80 DEG C, obtain compound calcium carbonate powder;
(5) be placed on rotary drum by step (4) gained compound calcium carbonate powder, preheating 15min at 50 revs/min lower 45 DEG C, then heated by stearic acid, atomization, is evenly sprayed on compound calcium carbonate powder, and 40 revs/min are stirred 10min simultaneously, to obtain final product.
The activated Calcium carbonate of ordinary calcium carbonate and the present embodiment is pressed formula batch mixing respectively, and room temperature carries out rheological experiment at PLE331 type torque rheometer after placing 8h, and result is as shown in table 1:
Table 1 rheological experiment result
Described material prescription is: PVC 100 parts, one package stabilizer 5 parts, KM355P 6 parts, common CaCO
3or the activated Calcium carbonate 20 parts of the present embodiment
As can be seen from table 1, add the activated Calcium carbonate of the present embodiment compared with ordinary calcium carbonate, moment of torsion reduces, fusion time obviously shortens, and melt temperature declines, and plasticizing rate accelerates, illustrate that activated Calcium carbonate and the PVC plastics Miscibility of the present embodiment are good, be conducive to processing.
Claims (2)
1. the activated Calcium carbonate of a good dispersity, it is characterized in that: it is obtained by the raw material of following weight parts: calcium carbonate 100-120, ethylene bis stearamide 1-2, tripropylene glycol diacrylate 3-5, dioctyl maleate 1-2, Tristearoylglycerol 0.2-0.4, amido silicon oil 1-2, and stearic acid 4.3-6.5, Sodium dodecylbenzene sulfonate 1-2, titanium dioxide 5-8, chitosan 1-2, water are appropriate.
2. the activated Calcium carbonate of a kind of good dispersity according to claim 1, is characterized in that: preparation method comprises the following steps:
(1) after calcium carbonate and suitable quantity of water being mixed, then add ethylene bis stearamide, tripropylene glycol diacrylate, dioctyl maleate, stir, then grind 1-2 hour, obtain modified suspension for subsequent use;
(2) titanium dioxide is joined in appropriate amount of deionized water, after stirring at 40-45 DEG C, then chitosan, Sodium dodecylbenzene sulfonate are added wherein, stir at 45-50 DEG C, obtain combination solution;
(3) modified suspension and combination solution are mixed, ball milling mixes and obtains mixed slurry, adds all the other raw materials except stearic acid, reacts 50-60min at 35-38 DEG C;
(4) dry 30-60h at 50-60 DEG C, step (3) gained reacted slurry, after vacuum-drying at 80-100 DEG C, obtain compound calcium carbonate powder;
(5) be placed on rotary drum by step (4) gained compound calcium carbonate powder, preheating 15-25min at 40-50 rev/min lower 40-45 DEG C, then heated by stearic acid, atomization, is evenly sprayed on compound calcium carbonate powder, and 40-50 rev/min is stirred 10-15min simultaneously, to obtain final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510265959.2A CN104892981A (en) | 2015-05-25 | 2015-05-25 | Activated calcium carbonate with good dispersity |
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| CN201510265959.2A CN104892981A (en) | 2015-05-25 | 2015-05-25 | Activated calcium carbonate with good dispersity |
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| CN104892981A true CN104892981A (en) | 2015-09-09 |
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| CN201510265959.2A Pending CN104892981A (en) | 2015-05-25 | 2015-05-25 | Activated calcium carbonate with good dispersity |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106566154A (en) * | 2016-11-12 | 2017-04-19 | 恩平市汇翔实业有限公司 | High-dispersibility nano calcium carbonate |
| CN106978277A (en) * | 2017-05-06 | 2017-07-25 | 山西兰花华明纳米材料股份有限公司 | A kind of preparation method of screw cleaning agent calcium carbonate |
| CN108912741A (en) * | 2018-07-18 | 2018-11-30 | 安徽杨柳青钙业科技股份有限公司 | A kind of preparation process of ultra-fine surface modified nano calcium carbonate |
| CN112358685A (en) * | 2020-11-11 | 2021-02-12 | 四川文诚管业有限公司 | Reinforced polypropylene double-wall corrugated pipe and production process thereof |
| CN113772706A (en) * | 2021-10-27 | 2021-12-10 | 广西合山市华纳新材料科技有限公司 | Preparation method of short column-shaped micron calcium carbonate |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408800A (en) * | 2013-07-03 | 2013-11-27 | 青阳县恒源化工原料有限责任公司 | High-dispersivity modified calcium carbonate for color masterbatches and preparation method thereof |
-
2015
- 2015-05-25 CN CN201510265959.2A patent/CN104892981A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408800A (en) * | 2013-07-03 | 2013-11-27 | 青阳县恒源化工原料有限责任公司 | High-dispersivity modified calcium carbonate for color masterbatches and preparation method thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106566154A (en) * | 2016-11-12 | 2017-04-19 | 恩平市汇翔实业有限公司 | High-dispersibility nano calcium carbonate |
| CN106978277A (en) * | 2017-05-06 | 2017-07-25 | 山西兰花华明纳米材料股份有限公司 | A kind of preparation method of screw cleaning agent calcium carbonate |
| CN106978277B (en) * | 2017-05-06 | 2019-07-23 | 山西兰花华明纳米材料股份有限公司 | A kind of preparation method of screw cleaning agent calcium carbonate |
| CN108912741A (en) * | 2018-07-18 | 2018-11-30 | 安徽杨柳青钙业科技股份有限公司 | A kind of preparation process of ultra-fine surface modified nano calcium carbonate |
| CN112358685A (en) * | 2020-11-11 | 2021-02-12 | 四川文诚管业有限公司 | Reinforced polypropylene double-wall corrugated pipe and production process thereof |
| CN113772706A (en) * | 2021-10-27 | 2021-12-10 | 广西合山市华纳新材料科技有限公司 | Preparation method of short column-shaped micron calcium carbonate |
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Application publication date: 20150909 |