CN103509206B - A kind of aging-resistant flame-proof doughnut modified calcium carbonate and preparation method thereof - Google Patents
A kind of aging-resistant flame-proof doughnut modified calcium carbonate and preparation method thereof Download PDFInfo
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- CN103509206B CN103509206B CN201310276437.3A CN201310276437A CN103509206B CN 103509206 B CN103509206 B CN 103509206B CN 201310276437 A CN201310276437 A CN 201310276437A CN 103509206 B CN103509206 B CN 103509206B
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Abstract
The invention provides a kind of aging-resistant flame-proof doughnut modified calcium carbonate, be prepared from by the feed composition of following weight part: water-ground limestone 98-100, triethyl citrate 1-2, dispersing agent NNO 0.2-0.3, Span-40? 0.1-0.3, ferrocene 1-2, barium stearate 0.5-0.6, anti-aging agent RD? 0.1-0.2, 2-thiol group benzimidazolyl 0.2-0.3, linking agent TAIC? 0.1-0.2, super abrasive carbon black N110? 1-2, middle super abrasive black N220? 2-3, zinc borate 0.1-0.3, magnesium hydroxide 0.2-0.4, γ-methacryloxypropyl trimethoxy silane 1-2.First that calcium carbonate is dry, then by other raw material in proportion in order gradation add wherein, fully mix in homogenizer, drying and grinding.The modified calcium carbonate that the present invention obtains has good dispersity, and aging-resistant flame-proof performance is good, is applied in doughnut glue, can reduces costs, and improves every processing characteristics and the ageing-resistant performance of tire sealant simultaneously.
Description
Technical field
The present invention relates to mineral filler field, be specifically related to a kind of aging-resistant flame-proof doughnut modified calcium carbonate and preparation method thereof.
Background technology
Water-ground limestone is a kind of conventional mineral filler, because of wide, the low price of originating etc., is widely used in the fields such as rubber, plastics, coating.But water-ground limestone surface hydrophilic oleophobic, specific surface area is large, surface energy is high, very easily reunite between particle, when directly or a large amount of fill in organic basis material time, not only be difficult to disperse equably, and very weak with the bonding force of matrix, cause some degradation of two-phase interface defect, matrix material.Therefore, in order to widen its Application Areas, modification must be carried out to heavy calcium carbonate surface, making its surperficial oleophilic drainage, strengthen the consistency with organic matrix, improve the dispersiveness in organic matrix, improve the performance of matrix material.
Summary of the invention
The invention provides a kind of aging-resistant flame-proof doughnut modified calcium carbonate and preparation method thereof.
The technical scheme of employing of the present invention is as follows:
A kind of aging-resistant flame-proof doughnut modified calcium carbonate, is characterized in that, be prepared from by the feed composition of following weight part:
Water-ground limestone 98-100, triethyl citrate 1-2, dispersing agent NNO 0.2-0.3, Span-400.1-0.3, ferrocene 1-2, barium stearate 0.5-0.6, anti-aging agent RD 0.1-0.2,2-thiol group benzimidazolyl 0.2-0.3, linking agent TAIC0.1-0.2, super abrasive carbon black N1101-2, middle super abrasive black N2202-3,
zinc borate0.1-0.3, magnesium hydroxide 0.2-0.4, γ-methacryloxypropyl trimethoxy silane 1-2.
The preparation method of described aging-resistant flame-proof doughnut modified calcium carbonate, is characterized in that: concrete operations are:
First water-ground limestone is dried to moisture content less than 0.5% at 90-100 DEG C, then add in high-speed mixer, first add triethyl citrate in proportion, with under the speed of 900-1000 rev/min, high-speed stirring 3-5 minute, and then add dispersing agent NNO, Span-20, ferrocene, after high-speed stirring 4-5 minute, add barium stearate successively again, anti-aging agent RD, 2-thiol group benzimidazolyl, linking agent TAIC, after high-speed stirring 4-5 minute, add super abrasive carbon black N110 again, middle super abrasive black N220, zinc borate, magnesium hydroxide, γ-methacryloxypropyl trimethoxy silane, with the speed high-speed stirring 15-18 minute of 1100-1200 rev/min, then dry, obtain modified calcium carbonate.
Beneficial effect of the present invention:
The present invention with the addition of kinds of surface treatment agent and functional agent on the basis of existing water-ground limestone modification, the modified calcium carbonate of gained has particle diameter and is less than 0.1um, size of particles is even, specific surface area is large, the feature that application performance is better than ordinary calcium carbonate greatly, the modified calcium carbonate that obtains are dispersed and consistency is good in rubber, the add-on of filler can be improved, reduce material cost; When modification by adding a small amount of protective agent, fire retardant, substantially increase anti-aging, the flame retardant properties of rubber, be applied in rubber for tire production, aging dose, the consumption of fire retardant can be reduced, further reduction material cost, increases economic efficiency, and improves mobility and the processing characteristics of system simultaneously, and give goods good physical and mechanical properties, reach toughened and reinforced effect.
Embodiment
A preparation method for aging-resistant flame-proof doughnut modified calcium carbonate,
By weight (kg) take water-ground limestone 100, triethyl citrate 2, dispersing agent NNO 0.2, Span-400.1, ferrocene 2, barium stearate 0.6, anti-aging agent RD 0.1,2-thiol group benzimidazolyl 0.3, linking agent TAIC0.1, super abrasive carbon black N1101, middle super abrasive black N2202,
zinc borate0.2, magnesium hydroxide 0.3, γ-methacryloxypropyl trimethoxy silane 2,
First water-ground limestone is dried to moisture content less than 0.5% at 95 DEG C, then add in high-speed mixer, first add triethyl citrate in proportion, with under the speed of 900-1000 rev/min, high-speed stirring 3-5 minute, and then add dispersing agent NNO, Span-20, ferrocene, after high-speed stirring 4-5 minute, add barium stearate, anti-aging agent RD, 2-thiol group benzimidazolyl, linking agent TAIC more successively, after high-speed stirring 4-5 minute, then add super abrasive carbon black N110, middle super abrasive black N220,
zinc borate, magnesium hydroxide, γ-methacryloxypropyl trimethoxy silane, with the speed high-speed stirring 15-18 minute of 1100-1200 rev/min, then dry, obtain modified calcium carbonate.
Common water-ground limestone adds in cis-1,4-polybutadiene rubber with identical addition with modified heavy calcium carbonate of the present invention by respectively, is adding other identical composition, and obtained rubber vulcanization obtains the physicals contrast of tire sealant as following table 1 respectively:
Table 1
Add the tire sealant gone out with modified calcium carbonate rubber vulcanization of the present invention as can be seen from Table 1, comprehensive comparison is good, and wherein heat aging performance improves a lot than conventional tyre glue, and elasticity obviously increases.
Claims (1)
1. an aging-resistant flame-proof doughnut modified calcium carbonate, it is characterized in that, be prepared from by the feed composition of following weight part: water-ground limestone 98-100, triethyl citrate 1-2, dispersing agent NNO 0.2-0.3, Span-400.1-0.3, ferrocene 1-2, barium stearate 0.5-0.6, anti-aging agent RD 0.1-0.2, 2-thiol group benzimidazolyl 0.2-0.3, linking agent TAIC0.1-0.2, super abrasive carbon black N1101-2, middle super abrasive black N2202-3, zinc borate 0.1-0.3, magnesium hydroxide 0.2-0.4, γ-methacryloxypropyl trimethoxy silane 1-2, its preparation method, concrete operations are: first at 90-100 DEG C, dry water-ground limestone to moisture content less than 0.5%, then add in high-speed mixer, first add triethyl citrate in proportion, with under the speed of 900-1000 rev/min, high-speed stirring 3-5 minute, and then add dispersing agent NNO, Span-40, ferrocene, after high-speed stirring 4-5 minute, add barium stearate successively again, anti-aging agent RD, 2-thiol group benzimidazolyl, linking agent TAIC, after high-speed stirring 4-5 minute, add super abrasive carbon black N110 again, middle super abrasive black N220, zinc borate, magnesium hydroxide, γ-methacryloxypropyl trimethoxy silane, with the speed high-speed stirring 15-18 minute of 1100-1200 rev/min, then dry, obtain modified calcium carbonate.
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| CN201310276437.3A CN103509206B (en) | 2013-07-03 | 2013-07-03 | A kind of aging-resistant flame-proof doughnut modified calcium carbonate and preparation method thereof |
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| CN201310276437.3A CN103509206B (en) | 2013-07-03 | 2013-07-03 | A kind of aging-resistant flame-proof doughnut modified calcium carbonate and preparation method thereof |
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| CN103509206A CN103509206A (en) | 2014-01-15 |
| CN103509206B true CN103509206B (en) | 2015-11-25 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104927089A (en) * | 2014-06-10 | 2015-09-23 | 池州市富华粉体科技有限公司 | Calcium carbonate material used in flame-retardant cable |
| CN104910550A (en) * | 2015-05-28 | 2015-09-16 | 青阳县恒源化工原料有限责任公司 | High-adhesion active calcium carbonate |
| CN107987560A (en) * | 2017-10-20 | 2018-05-04 | 英德市日昇矿业有限公司 | A kind of shutter leaf modified heavy calcium carbonate and preparation method thereof |
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| CN1668710A (en) * | 2002-07-19 | 2005-09-14 | 白石工业株式会社 | Modified calcium carbonate, polymer composition containing the same and process for producing them |
| CN101173063A (en) * | 2007-10-29 | 2008-05-07 | 大连天宝化学工业有限公司 | Multifunctional rubber chemicals and method for producing the same |
| CN101516985A (en) * | 2006-09-28 | 2009-08-26 | 白石工业株式会社 | Calcium carbonate treated with curing active ingredient |
| CN101519578A (en) * | 2008-03-01 | 2009-09-02 | 中国石油化工股份有限公司 | Special material for automotive seal strip and preparation method thereof |
| CN102775651A (en) * | 2012-08-16 | 2012-11-14 | 中橡集团曙光橡胶工业研究设计院 | Sponge tire sponge rubber material containing butyl reclaimed rubber |
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- 2013-07-03 CN CN201310276437.3A patent/CN103509206B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1668710A (en) * | 2002-07-19 | 2005-09-14 | 白石工业株式会社 | Modified calcium carbonate, polymer composition containing the same and process for producing them |
| CN101516985A (en) * | 2006-09-28 | 2009-08-26 | 白石工业株式会社 | Calcium carbonate treated with curing active ingredient |
| CN101173063A (en) * | 2007-10-29 | 2008-05-07 | 大连天宝化学工业有限公司 | Multifunctional rubber chemicals and method for producing the same |
| CN101519578A (en) * | 2008-03-01 | 2009-09-02 | 中国石油化工股份有限公司 | Special material for automotive seal strip and preparation method thereof |
| CN102775651A (en) * | 2012-08-16 | 2012-11-14 | 中橡集团曙光橡胶工业研究设计院 | Sponge tire sponge rubber material containing butyl reclaimed rubber |
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