CN104087027B - A kind of heat resist modification calcium carbonate and preparation method thereof - Google Patents
A kind of heat resist modification calcium carbonate and preparation method thereof Download PDFInfo
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- CN104087027B CN104087027B CN201410253390.3A CN201410253390A CN104087027B CN 104087027 B CN104087027 B CN 104087027B CN 201410253390 A CN201410253390 A CN 201410253390A CN 104087027 B CN104087027 B CN 104087027B
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Abstract
The invention discloses a kind of heat resist modification calcium carbonate, it is characterized in that, be made up of 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; The present invention adds modifying titanium dioxide, adds the dispersiveness of calcium carbonate; Add polyimide coated caco3, while having high temperature resistant character, consistency is better, with the filmogen generation crosslinking reaction in rubber, plastics, coating, can produce very strong bonding force, can not reduce product performance; Add sepiolite fibre, good thermal stability, can natural decomposition, safety and environmental protection.
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, most products belongs to the category of polymkeric substance, such as plastics, rubber, tackiness agent, coating etc., and occupies the important market share.For plastics, PCC market consumption in the plastic will reach 3,500,000 tons.Relative to metallic substance, polymer materials due to have quality light, be easy to process, advantage that specific tenacity is good and having a wide range of applications in multiple field.But compare in metallic substance, the outstanding weak point of of polymkeric substance is heat-resisting poor, and 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.
The performance and application of properties-correcting agent to nano-calcium carbonate serves vital role.Such as, 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.But, adding of dispersion agent and surface-modifying agent, make nano-calcium carbonate temperature use window greatly to diminish, reason is that conventional dispersion agent and coupling agent are at high temperature easy to decompose, cause bubble, cracking, defect, distortion etc., thus affect the outward appearance of material, resistance toheat and mechanical property.So also need in calcium carbonate applications to polymkeric substance that there is good processibility and outward appearance.
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 is by following scheme implementation:
A kind of heat resist modification calcium carbonate, is made up of 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 up of 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; Preparation method be first add methyl methacrylate, nano titanium oxide, aluminium hydroxide, ethylene glycol, water stirs, form suspension, dry at 45-50 DEG C to water content 2-3%, then terephthalic acid, dioctyl maleate mix and blend 25-35 minute is added immediately, then all the other remaining components are added, stir under 1200-1500 rev/min of condition, dry at 50-60 DEG C, be ground into ultrafine powder and get final product.
A kind of heat resist modification calcium carbonate of the present invention, be made up of following concrete steps:
(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 DEG C, 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 DEG C, 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, stirring and grinding 2-3 hour, forming 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, add the dispersiveness of calcium carbonate; Add polyimide coated caco3, while having high temperature resistant character, consistency is better, with the filmogen generation crosslinking reaction in rubber, plastics, coating, can 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 kind of heat resist modification calcium carbonate, is made up of the raw material of following weight part (kilogram): 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 is made up of the raw material of following weight part (kilogram): 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; Preparation method be first add methyl methacrylate, nano titanium oxide, aluminium hydroxide, ethylene glycol, water stirs, form suspension, dry at 45-50 DEG C to water content 2-3%, then terephthalic acid, dioctyl maleate mix and blend 25-35 minute is added immediately, then all the other remaining components are added, stir under 1200-1500 rev/min of condition, dry at 50-60 DEG C, be ground into ultrafine powder and get final product.
A kind of heat resist modification calcium carbonate of the present invention, be made up of following concrete steps:
(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 DEG C, 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 DEG C, 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, stirring and grinding 2-3 hour, forming 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 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 (1)
1. a heat resist modification calcium carbonate, it is characterized in that, be made up of 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 up of 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; Preparation method be first add methyl methacrylate, nano titanium oxide, aluminium hydroxide, ethylene glycol, water stirs, form suspension, dry at 45-50 DEG C to water content 2-3%, then terephthalic acid, dioctyl maleate mix and blend 25-35 minute is added immediately, then all the other remaining components are added, stir under 1200-1500 rev/min of condition, dry at 50-60 DEG C, be ground into ultrafine powder and get final product;
Described a kind of heat resist modification calcium carbonate is made up of following concrete steps:
(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 DEG C, 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 DEG C, 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, stirring and grinding 2-3 hour, forming 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| 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 |
| 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 |
| 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 |
| CN113968674A (en) * | 2021-10-14 | 2022-01-25 | 广东欧文莱陶瓷有限公司 | Antifouling digital protective glaze |
| 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 |
| 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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| 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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| TWI282327B (en) * | 2002-07-19 | 2007-06-11 | Shiraishi Kogyo Kaisha Ltd | Modified calcium carbonate, polymer composition containing the same and process for producing them |
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| 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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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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