CN104087027A - High-temperature-resistant modified calcium carbonate and preparation method thereof - Google Patents
High-temperature-resistant modified calcium carbonate and preparation method thereof Download PDFInfo
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- CN104087027A CN104087027A CN201410253390.3A CN201410253390A CN104087027A CN 104087027 A CN104087027 A CN 104087027A CN 201410253390 A CN201410253390 A CN 201410253390A CN 104087027 A CN104087027 A CN 104087027A
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Abstract
The invention discloses high-temperature-resistant modified calcium carbonate which is characterized by being prepared from following raw materials including, by weight, 85-90 parts of calcium carbonate, 3-4 parts of cationic starch, 1-2 parts of glutinous rice glue, 3-5 parts of magnesium hydroxide, 1-2 parts of bamboo charcoal powder, 3-4 parts of dried fallen leaf powder, 2-3 parts of barium sulfate, 5-7 parts of polyimide, 1-2 parts of polybenzimidazole, 3-5 parts of hydroxyethyl acrylate, 4-6 parts of dimethylformamide, 2-4 parts of sodium sulfide, 2-3 parts of sepiolite fibre and 3-4 parts of modified titanium dioxide. Through addition of the modified titanium dioxide, dispersibility of the calcium carbonate is enhanced. Through addition of the polyimide for coating the calcium carbonate, the calcium carbonate not only has a high-temperature-resistant performance but also is good in compatibility. A crosslinking reaction can be carried out between the polyimide and a film-forming substance in rubber, plastic and coating so that a very strong binding force is generated and product performance is not reduced. Through addition of the sepiolite fibre, the modified calcium carbonate is excellent in thermal-stability, can be decomposed naturally and is safe and environment-protective.
Description
Technical field
The present invention relates to industrial filler field, particularly a kind of heat resist modification calcium carbonate 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.In the Application Areas of calcium carbonate, large multi-product belongs to the category of polymkeric substance, such as plastics, rubber, tackiness agent, coating etc., and occupy the important market share.Take plastics as example, and the market consumption of PCC in plastics will reach 3,500,000 tons.With respect to metallic substance, polymer materials due to have quality light, be easy to processing, the good advantage of specific tenacity and have a wide range of applications in a plurality of fields.But, compare in metallic substance, an outstanding weak point of polymkeric substance is heat-resisting poor, for this reason, the good polymkeric substance of many thermotolerances is developed gradually, and automobile, electronics, space flight etc. high-end field be widely used.
Properties-correcting agent has played vital role to the performance of nano-calcium carbonate and application.For example, dispersion agent add the reunion that can reduce nano particle, improve dispersed; Adding of surface-modifying agent can improve the consistency of nano-calcium carbonate in polymeric system.As can be seen here, dispersion agent and surface-modifying agent are vital for the application of nano-calcium carbonate.Yet, adding of dispersion agent and surface-modifying agent, makes nano-calcium carbonate temperature use window greatly to diminish, and reason is that conventional dispersion agent and coupling agent is at high temperature easy to decompose, cause bubble, cracking, defect, distortion etc., thereby affect outward appearance, resistance toheat and the mechanical property of material.So calcium carbonate applications also needs to have good processibility and outward appearance in polymkeric substance.
Summary of the invention
The object of this invention is to provide a kind of heat resist modification calcium carbonate and preparation method thereof.
In order to realize object of the present invention, the present invention passes through following scheme implementation:
A heat resist modification calcium carbonate, is made by the raw material of following weight part: calcium carbonate 85-90, cationic starch 3-4, glutinous rice glue 1-2, magnesium hydroxide 3-5, bamboo carbon powder 1-2, dry fallen leaves powder 3-4, barium sulfate 2-3, polyimide 5-7, polybenzimidazole 1-2, Hydroxyethyl acrylate 3-5, dimethyl formamide 4-6, sodium sulphite 2-4, sepiolite fibre 2-3, modifying titanium dioxide 3-4;
Described modifying titanium dioxide is made by the raw material of following weight part: aluminium hydroxide 2-4, nano titanium oxide 50-60, silicon carbide 4-6, methyl methacrylate 5-7, antimonous oxide 3-4, terephthalic acid 3-4, dioctyl maleate 3-5, ethylene glycol 5-6, water 50-60; First preparation method adds methyl methacrylate, nano titanium oxide, aluminium hydroxide, ethylene glycol, water to stir, form suspension, at 45-50 ℃, dry to water content 2-3%, then add immediately terephthalic acid, dioctyl maleate mix and blend 25-35 minute, then add all the other remaining components, under 1200-1500 rev/min of condition, stir, at 50-60 ℃, dry, be ground into ultrafine powder and get final product.
A kind of heat resist modification calcium carbonate of the present invention, by following concrete steps, made:
(1) calcium carbonate, cationic starch, glutinous rice glue, magnesium hydroxide, bamboo carbon powder, dry fallen leaves powder, barium sulfate, polyimide are added in high-speed kneading machine, be warming up between 70-80 ℃, insulated and stirred half an hour, continue to add all the other remaining components except modifying titanium dioxide, dry fallen leaves powder, continue to be warming up to 110-130 ℃, be incubated and pour out after 15-20 minute;
(2) by adding appropriate deionized water and dry fallen leaves powder by pouring out material while hot, stir and grind 2-3 hour, form suspension stand-by;
(3) suspension is mixed with modifying titanium dioxide, stir 10-15 minute under 800-1000 rev/min, dry, be ground into ultrafine powder and get final product.
The invention has the beneficial effects as follows: the present invention adds modifying titanium dioxide, increased the dispersiveness of calcium carbonate; Add polyimide coated caco3, when having high temperature resistant character, consistency is better, can with rubber, plastics, coating in filmogen generation crosslinking reaction, produce very strong bonding force, can not reduce product performance; Add sepiolite fibre, good thermal stability, can natural decomposition, safety and environmental protection.
Specific embodiments
Below by specific examples, the present invention is described in detail.
A heat resist modification calcium carbonate, by following weight part (kilogram) raw material make: calcium carbonate 85, cationic starch 3, glutinous rice glue 1, magnesium hydroxide 3, bamboo carbon powder 1, dry fallen leaves powder 3, barium sulfate 2, polyimide 5, polybenzimidazole 1, Hydroxyethyl acrylate 3, dimethyl formamide 4, sodium sulphite 2, sepiolite fibre 2, modifying titanium dioxide 3;
Described modifying titanium dioxide by following weight part (kilogram) raw material make: aluminium hydroxide 2, nano titanium oxide 50, silicon carbide 4, methyl methacrylate 5, antimonous oxide 3, terephthalic acid 3, dioctyl maleate 3, ethylene glycol 5, water 50; First preparation method adds methyl methacrylate, nano titanium oxide, aluminium hydroxide, ethylene glycol, water to stir, form suspension, at 45-50 ℃, dry to water content 2-3%, then add immediately terephthalic acid, dioctyl maleate mix and blend 25-35 minute, then add all the other remaining components, under 1200-1500 rev/min of condition, stir, at 50-60 ℃, dry, be ground into ultrafine powder and get final product.
A kind of heat resist modification calcium carbonate of the present invention, by following concrete steps, made:
(1) calcium carbonate, cationic starch, glutinous rice glue, magnesium hydroxide, bamboo carbon powder, dry fallen leaves powder, barium sulfate, polyimide are added in high-speed kneading machine, be warming up between 70-80 ℃, insulated and stirred half an hour, continue to add all the other remaining components except modifying titanium dioxide, dry fallen leaves powder, continue to be warming up to 110-130 ℃, be incubated and pour out after 15-20 minute;
(2) by adding appropriate deionized water and dry fallen leaves powder by pouring out material while hot, stir and grind 2-3 hour, form suspension stand-by;
(3) suspension is mixed with modifying titanium dioxide, stir 10-15 minute under 800-1000 rev/min, dry, be ground into ultrafine powder and get final product.
Performance Detection to 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 the good calcium carbonate of modification and unmodified water-ground limestone are joined in polyvinyl chloride resin in 15% ratio respectively, make sample, test respectively both mechanical properties, comparing result sees the following form:
As can be seen from the above table, the loose bulk density of the calcium carbonate after modification diminishes, and illustrates that calcium carbonate split fully disperses, and it can also be seen that every mechanical property of calcium carbonate is all improved after modification.
Claims (2)
1. a heat resist modification calcium carbonate, it is characterized in that, by the raw material of following weight part, made: calcium carbonate 85-90, cationic starch 3-4, glutinous rice glue 1-2, magnesium hydroxide 3-5, bamboo carbon powder 1-2, dry fallen leaves powder 3-4, barium sulfate 2-3, polyimide 5-7, polybenzimidazole 1-2, Hydroxyethyl acrylate 3-5, dimethyl formamide 4-6, sodium sulphite 2-4, sepiolite fibre 2-3, modifying titanium dioxide 3-4;
Described modifying titanium dioxide is made by the raw material of following weight part: aluminium hydroxide 2-4, nano titanium oxide 50-60, silicon carbide 4-6, methyl methacrylate 5-7, antimonous oxide 3-4, terephthalic acid 3-4, dioctyl maleate 3-5, ethylene glycol 5-6, water 50-60; First preparation method adds methyl methacrylate, nano titanium oxide, aluminium hydroxide, ethylene glycol, water to stir, form suspension, at 45-50 ℃, dry to water content 2-3%, then add immediately terephthalic acid, dioctyl maleate mix and blend 25-35 minute, then add all the other remaining components, under 1200-1500 rev/min of condition, stir, at 50-60 ℃, dry, be ground into ultrafine powder and get final product.
2. a kind of heat resist modification calcium carbonate according to claim 1, is characterized in that, by following concrete steps, is made:
(1) calcium carbonate, cationic starch, glutinous rice glue, magnesium hydroxide, bamboo carbon powder, dry fallen leaves powder, barium sulfate, polyimide are added in high-speed kneading machine, be warming up between 70-80 ℃, insulated and stirred half an hour, continue to add all the other remaining components except modifying titanium dioxide, dry fallen leaves powder, continue to be warming up to 110-130 ℃, be incubated and pour out after 15-20 minute;
(2) by adding appropriate deionized water and dry fallen leaves powder by pouring out material while hot, stir and grind 2-3 hour, form suspension stand-by;
(3) suspension is mixed with modifying titanium dioxide, stir 10-15 minute under 800-1000 rev/min, dry, be ground into ultrafine powder and get final product.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104927401A (en) * | 2015-06-05 | 2015-09-23 | 安徽雪城超细碳酸钙有限公司 | Modified calcium carbonate and preparation method thereof |
| CN105153750A (en) * | 2015-07-02 | 2015-12-16 | 青阳县恒祥炉料有限公司 | Wear-resistant surface modified calcium carbonate filler 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 |
| 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 |
| CN107474311A (en) * | 2017-08-17 | 2017-12-15 | 含山县金石建筑材料有限公司 | A kind of preparation method of rubber industry agstone |
| CN110628226A (en) * | 2019-10-22 | 2019-12-31 | 海宁益象纺织新材料制造有限公司 | Environment-friendly halogen-free flame-retardant advertising cloth and preparation method thereof |
| CN113072824A (en) * | 2021-03-29 | 2021-07-06 | 广西贺州市科隆粉体有限公司 | Modification method of special heavy calcium carbonate for bulk molding compound |
| CN113896518A (en) * | 2021-10-14 | 2022-01-07 | 广东欧文莱陶瓷有限公司 | Color-changeable rock plate and preparation method thereof |
| CN113968674A (en) * | 2021-10-14 | 2022-01-25 | 广东欧文莱陶瓷有限公司 | Antifouling digital protective glaze |
| CN114408957A (en) * | 2021-12-31 | 2022-04-29 | 广西华纳新材料科技有限公司 | Method for coating calcium carbonate with barium sulfate |
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| WO2004009711A1 (en) * | 2002-07-19 | 2004-01-29 | Shiraishi Kogyo Kaisha Ltd. | Modified calcium carbonate, polymer composition containing the same and process for producing them |
| CN101967309A (en) * | 2010-07-14 | 2011-02-09 | 山东海泽纳米材料有限公司 | Method for preparing active calcium carbonate |
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2014
- 2014-06-06 CN CN201410253390.3A patent/CN104087027B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2004009711A1 (en) * | 2002-07-19 | 2004-01-29 | Shiraishi Kogyo Kaisha Ltd. | Modified calcium carbonate, polymer composition containing the same and process for producing them |
| CN101967309A (en) * | 2010-07-14 | 2011-02-09 | 山东海泽纳米材料有限公司 | Method for preparing active calcium carbonate |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104927401A (en) * | 2015-06-05 | 2015-09-23 | 安徽雪城超细碳酸钙有限公司 | Modified calcium carbonate and preparation method thereof |
| CN105153750A (en) * | 2015-07-02 | 2015-12-16 | 青阳县恒祥炉料有限公司 | Wear-resistant surface modified calcium carbonate filler 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 |
| 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 |
| CN107474311A (en) * | 2017-08-17 | 2017-12-15 | 含山县金石建筑材料有限公司 | A kind of preparation method of rubber industry agstone |
| CN107474311B (en) * | 2017-08-17 | 2018-08-03 | 张家界荣丰新材料有限公司 | A kind of preparation method of rubber industry agstone |
| CN110628226A (en) * | 2019-10-22 | 2019-12-31 | 海宁益象纺织新材料制造有限公司 | Environment-friendly halogen-free flame-retardant advertising cloth and preparation method thereof |
| CN113072824A (en) * | 2021-03-29 | 2021-07-06 | 广西贺州市科隆粉体有限公司 | Modification method of special heavy calcium carbonate for bulk molding compound |
| CN113072824B (en) * | 2021-03-29 | 2022-04-15 | 广西贺州市科隆粉体有限公司 | Modification method of special heavy calcium carbonate for bulk molding compound |
| CN113896518A (en) * | 2021-10-14 | 2022-01-07 | 广东欧文莱陶瓷有限公司 | Color-changeable rock plate and preparation method thereof |
| CN113968674A (en) * | 2021-10-14 | 2022-01-25 | 广东欧文莱陶瓷有限公司 | Antifouling digital protective glaze |
| CN114408957A (en) * | 2021-12-31 | 2022-04-29 | 广西华纳新材料科技有限公司 | Method for coating calcium carbonate with barium sulfate |
| CN114408957B (en) * | 2021-12-31 | 2024-04-09 | 广西华纳新材料股份有限公司 | Method for coating calcium carbonate with barium sulfate |
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| CN104087027B (en) | 2016-03-30 |
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Effective date of registration: 20170712 Address after: 511335, Guangdong Province, Zengcheng District, Guangzhou Town, fairy village, old blue stone road Patentee after: Guangzhou silver environmental protection plastics industry Co., Ltd. Address before: Fengtai County, Anhui province 232100 Huainan City Gu Qiao Zhen Tuan Jie East 100 meters Patentee before: Fengtai Jinghua Auxiliary Co., Ltd. |
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