CN103772746B - A kind of silane coupler/hydroxy stearic acid surface modified calcium carbonate filler - Google Patents
A kind of silane coupler/hydroxy stearic acid surface modified calcium carbonate filler Download PDFInfo
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- CN103772746B CN103772746B CN201410003736.4A CN201410003736A CN103772746B CN 103772746 B CN103772746 B CN 103772746B CN 201410003736 A CN201410003736 A CN 201410003736A CN 103772746 B CN103772746 B CN 103772746B
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- calcium carbonate
- modified calcium
- stearic acid
- hydroxy stearic
- silane coupler
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Abstract
The present invention relates to a kind of pearl filler, it being specifically related to a kind of silane coupler/hydroxy stearic acid surface modified calcium carbonate filler, does is this modified calcium carbonate made up of the raw material of following weight portion: calcium carbonate 200, silane resin acceptor kh-550? 1-2, aluminium hydroxide 1-2, apatite 2-3, dilauryl thiodipropionate 1-2, zinc oxide 2-3, hydroxy stearic acid 1-2, auxiliary agent 4-5; The modified calcium carbonate powder body of the present invention, the surface conditioning agent such as silane coupler, hydroxy stearic acid is adopted to be modified calcium carbonate processing, the performance indications such as its oil factor, viscosity, activation rate all improve, it is easier in high molecular polymer and disperses and compatible, the modified calcium carbonate powder body that the present invention prepares can effectively improve the mechanical property of PVC material, reaches good filler reinforcement effect.
Description
Technical field
The present invention relates to a kind of pearl filler, be specifically related to a kind of silane coupler/hydroxy stearic acid surface modified calcium carbonate filler.
Background technology
Calcium carbonate is the functional inorganic filling that a class is important, have cheap, rich reserves, stable performance, easily processing, the advantage such as nontoxic, drawing abillity can be improved significantly, physical property and reduction production cost etc., it is widely used in plastics, rubber, coating, the fields such as papermaking, owing to calcium carbonate is hydrophilic compounds, cause existing in actual applications and Polymers Phase capacitive deficiency, the defects such as bad dispersibility, satisfied filler reinforcement effect can not be reached, it is thus desirable to be modified calcium carbonate processing, to improve its dispersibility and compatibility in various types of materials, to reach to improve effect of properties of product.
Summary of the invention
It is an object of the invention to, a kind of silane coupler/hydroxy stearic acid surface modified calcium carbonate filler is provided, utilize compound surface-treating agent that calcium carbonate is carried out surface modification treatment, improve its wettability in the polymer and dispersibility, reach to strengthen the effect of macromolecule material product performance, to achieve these goals, the technical solution used in the present invention is as follows:
A kind of silane coupler/hydroxy stearic acid surface modified calcium carbonate filler, it is characterized in that, this pearl filler is made up of the raw material of following weight portion: calcium carbonate 200, silane resin acceptor kh-550 1-2, aluminium hydroxide 1-2, apatite 2-3, dilauryl thiodipropionate 1-2, zinc oxide 2-3, hydroxy stearic acid 1-2, auxiliary agent 4-5;
Described auxiliary agent is made up of the raw material of following weight portion: MTES 2-3, Zirconium tetrafluoride. 1-2, nano silicon 1-2, basswood ashes 1-2, cross-linking agent TAC1-2, ascorbic acid 1-2; Its preparation method is that grinding distribution is uniform, to obtain final product by each mixing of materials.
Described a kind of silane coupler/hydroxy stearic acid surface modified calcium carbonate filler, it is characterised in that described modified calcium carbonate is prepared by following method:
(1) by calcium carbonate, aluminium hydroxide, apatite, dilauryl thiodipropionate mixing, grind 15-20min, cross 150-200 mesh sieve;
(2) material that step (1) obtains is mixed with auxiliary agent, grind 20-30min, cross 300-400 mesh sieve;
(3) other residual components is added in step (2) material that obtains, continue to be ground to and be uniformly dispersed.
The invention have the benefit that and utilize the surface conditioning agent such as silane coupler, hydroxy stearic acid to be modified calcium carbonate processing, the performance indications such as modified powder body oil factor, viscosity, activation rate all change, become oleophilic drainage, it is more conducive to it and disperses with compatible in the polymer, thus reaching good filler reinforcement effect, and this modified calcium carbonate production technology simply easily realizes, using value is high.
Detailed description of the invention
Embodiment
The modified calcium carbonate filler of the present embodiment is made up of the raw material of following weight portion: calcium carbonate 200, silane resin acceptor kh-550 1, aluminium hydroxide 2, apatite 3, dilauryl thiodipropionate 1, zinc oxide 3, hydroxy stearic acid 2, auxiliary agent 5;
Above-mentioned auxiliary agent is made up of the raw material of following weight portion: MTES 2, Zirconium tetrafluoride. 1, nano silicon 1, basswood ashes 2, cross-linking agent TAC1, ascorbic acid 1; Its preparation method is that grinding distribution is uniform, to obtain final product by each mixing of materials.
This modified calcium carbonate filler is prepared by following methods:
(1) by calcium carbonate, aluminium hydroxide, apatite, dilauryl thiodipropionate mixing, grind 20min, cross 200 mesh sieves;
(2) material that step (1) obtains is mixed with auxiliary agent, grind 30min, cross 400 mesh sieves;
(3) other residual components is added in step (2) material that obtains, continue to be ground to and be uniformly dispersed.
The oil factor of the present embodiment modified calcium carbonate is 0.262mL/g, viscosity is 22.4mPa.s, activation rate reaches 98%, being 82 �� with the contact angle of water, these data illustrate that the modified calcium carbonate powder body dispersion in media as well of the present embodiment is high, particulate interspaces reduces, particle aggregation degree reduces, lipophile increases.
In order to investigate the performance of the present embodiment modified calcium carbonate powder body further, the calcium carbonate before modified of equivalent and modified calcium carbonate powder are filled in PVC material respectively, the performance test results shows, the PVC material mechanical property that modified calcium carbonate powder is filled be improved significantly, its impact strength improves 25.7%, hot strength improves 15.4%, elongation at break improves 10.4%, cantilever beam impact strength improves 40.5%, illustrate that modified calcium carbonate powder body of the present invention is when filling pvc material, in matrix material, dispersibility is better, well compatible with material, can effectively promote the mechanical property of PVC material, reach gratifying filling effect.
Claims (1)
1. silane coupler/hydroxy stearic acid surface modified calcium carbonate filler, it is characterized in that, described calcium carbonate is made up of the raw material of following weight portion: calcium carbonate 200, silane resin acceptor kh-550 1-2, aluminium hydroxide 1-2, apatite 2-3, dilauryl thiodipropionate 1-2, zinc oxide 2-3, hydroxy stearic acid 1-2, auxiliary agent 4-5;
Described auxiliary agent is made up of the raw material of following weight portion: MTES 2-3, Zirconium tetrafluoride. 1-2, nano silicon 1-2, basswood ashes 1-2, cross-linking agent TAC1-2, ascorbic acid 1-2; Its preparation method is that grinding distribution is uniform, to obtain final product by each mixing of materials;
Described modified calcium carbonate is prepared by following method:
(1) by calcium carbonate, aluminium hydroxide, apatite, dilauryl thiodipropionate mixing, grind 15-20min, cross 150-200 mesh sieve;
(2) material that step (1) obtains is mixed with auxiliary agent, grind 20-30min, cross 300-400 mesh sieve;
(3) other residual components is added in step (2) material that obtains, continue to be ground to and be uniformly dispersed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410003736.4A CN103772746B (en) | 2014-01-04 | 2014-01-04 | A kind of silane coupler/hydroxy stearic acid surface modified calcium carbonate filler |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410003736.4A CN103772746B (en) | 2014-01-04 | 2014-01-04 | A kind of silane coupler/hydroxy stearic acid surface modified calcium carbonate filler |
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| CN103772746A CN103772746A (en) | 2014-05-07 |
| CN103772746B true CN103772746B (en) | 2016-06-08 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105086525A (en) * | 2015-07-24 | 2015-11-25 | 安徽雪城超细碳酸钙有限公司 | Modified bentonite with good dispersibility and preparation method thereof |
| CN105111790A (en) * | 2015-08-11 | 2015-12-02 | 陈传松 | Anti-aging effect enhanced modified calcium carbonate and preparation method therefor |
| CN108102141A (en) * | 2017-12-22 | 2018-06-01 | 贺州市星辉科技有限公司 | It is a kind of suitable for modified calcium carbonate filler of plastics and preparation method thereof |
| CN108676197A (en) * | 2018-05-24 | 2018-10-19 | 成都菲斯特新材料有限公司 | A method of improving nano-powder dispersibility |
| CN108906254B (en) * | 2018-07-24 | 2021-03-19 | 高安市盛元碳酸钙发展有限公司 | Low-cost modified light calcium carbonate special for PVC (polyvinyl chloride) foamed products |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102977485A (en) * | 2012-10-31 | 2013-03-20 | 蚌埠凯盛工程技术有限公司 | Nanometer attapulgite-modified chlorosulfonated polyethylene rubber gasket and preparation method thereof |
| CN103408801A (en) * | 2013-07-03 | 2013-11-27 | 青阳县永诚钙业有限责任公司 | Modified calcium carbonate for wear-resistant rubber shoe soles and preparation method thereof |
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- 2014-01-04 CN CN201410003736.4A patent/CN103772746B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102977485A (en) * | 2012-10-31 | 2013-03-20 | 蚌埠凯盛工程技术有限公司 | Nanometer attapulgite-modified chlorosulfonated polyethylene rubber gasket and preparation method thereof |
| CN103408801A (en) * | 2013-07-03 | 2013-11-27 | 青阳县永诚钙业有限责任公司 | Modified calcium carbonate for wear-resistant rubber shoe soles and preparation method thereof |
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