CN102964623A - ADCA (Azodicarbonamide) foaming agent composition, as well as preparation method and application thereof - Google Patents
ADCA (Azodicarbonamide) foaming agent composition, as well as preparation method and application thereof Download PDFInfo
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- CN102964623A CN102964623A CN201210529477XA CN201210529477A CN102964623A CN 102964623 A CN102964623 A CN 102964623A CN 201210529477X A CN201210529477X A CN 201210529477XA CN 201210529477 A CN201210529477 A CN 201210529477A CN 102964623 A CN102964623 A CN 102964623A
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- foaming agent
- cellmic
- adca
- sodium bicarbonate
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Abstract
The invention relates to an ADCA (azodicarbonamide) foaming agent composition, wherein azodicarbonamide accounts for 55%-95% by weight of the composition and sodium hydrogen carbonate accounts for 5%-45% by weight of the composition. The foaming agent provided by the invention has the advantages of great gas forming amount, white decomposed substances and no toxicity or harm. The foaming agent disclosed by the invention can be used as a food foaming agent, is in line with food requirements, is very suitable for polyvinyl chloride type products and special-shaped material extruded products and can be widely applied to PVC (polyvinyl chloride), PP (polypropylene) and ABS (acrylonitrile butadiene styrene).
Description
Technical field
The present invention relates to a kind of whipping agent, particularly relate to a kind of ADCA foaming agent composotion.The invention still further relates to the preparation and application of described foaming agent composotion.
Background technology
ADCA, i.e. Cellmic C 121, molecular formula is H
2NCONNCONH
2, outward appearance is flaxen crystalline powder.ADCA itself is nontoxic, odorless, nonflammable, and it is large to have a gas forming amount, bubble is even, pollution-free to goods, mould is not corroded, decomposition temperature can be regulated, and does not affect the characteristics such as curing and shaping speed, therefore is widely used in the foaming of the synthetic materialss such as polyvinyl chloride, polyethylene, polypropylene, polystyrene, ABS and various rubber.
Existing ADCA foaming agent composotion is when using, and have following shortcoming: decomposition temperature is higher, and greater than 210 ℃, the whipping agent multiplying power is low, and foaming layer material tension, anti-aging degree is relatively poor, color and luster is relatively poor, compactness is poor, etc.Particularly decomposition temperature is high, limits it in the lower book of softening temperature or is subjected to easily purposes in the resin of thermal degradation when.
At present the method that overcomes above-mentioned shortcoming commonly used is to add the decomposition accelerating agent of various reduction foaming agent decomposition temperatures in ADCA, and decomposition accelerating agent commonly used comprises the metal oxides such as zinc, lead, tin, cadmium, and the amine compound such as urea.Although these decomposition accelerating agents can reduce the decomposition temperature of ADCA foaming agent composotion, also reduced the gas forming amount of whipping agent simultaneously, thereby reduced the expansion ratio of product after the foaming.
Because the defective that above-mentioned existing ADCA foaming agent composotion exists, the inventor is based on being engaged in for many years abundant practical experience and expertise of this type of product design manufacturing, positive research and innovation in addition, in the hope of founding a kind of new ADCA foaming agent composotion, when this whipping agent foams for a kind of material, blowing temperature is near the material foaming temperature, after the foaming at the bottom of the matter evenly, soft, luster performance is good.
Summary of the invention
Main purpose of the present invention is, overcome the defective that existing ADCA foaming agent composotion exists, and provide a kind of new ADCA foaming agent composotion, technical problem to be solved is to reduce blowing temperature, improve gas forming amount, improve simultaneously the outward appearance of product, thereby more be suitable for the foaming of food, macromolecular material etc.
Another object of the present invention is to, a kind of preparation method of ADCA foaming agent composotion is provided, technical problem to be solved is the product of a kind of submicron order of preparation, improves simultaneously the production automation degree of product and the homogeneity of product granularity.
The object of the invention to solve the technical problems realizes by the following technical solutions.According to a kind of ADCA foaming agent composotion that the present invention proposes, it contains Cellmic C 121 and sodium bicarbonate.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid ADCA foaming agent composotion, preferred, wherein to account for composition weight per-cent be 55%-95% to Cellmic C 121, it is 5%-45% that sodium bicarbonate accounts for composition weight per-cent.
Aforesaid ADCA foaming agent composotion, preferred, wherein to account for composition weight per-cent be 65%-85% to Cellmic C 121, it is 15%-35% that sodium bicarbonate accounts for composition weight per-cent.
Aforesaid ADCA foaming agent composotion, preferred, wherein to account for composition weight per-cent be 75%-80% to Cellmic C 121., it is 20%-25% that sodium bicarbonate accounts for composition weight per-cent.
Aforesaid ADCA foaming agent composotion, preferred, wherein to account for composition weight per-cent be 65% to Cellmic C 121, it is 35% that sodium bicarbonate accounts for composition weight per-cent.
The object of the invention to solve the technical problems also adopts following technical scheme to realize.According to a kind of method for preparing the ADCA foaming agent composotion that the present invention proposes, it comprises the steps:
(1) Cellmic C 121 is processed into the powder of submicron order;
(2) sodium bicarbonate is processed into the powder of submicron order; And
(3) Cellmic C 121 after will processing and sodium bicarbonate mix and form the ADCA foaming agent composotion.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid ADCA foaming agent composotion, wherein the particle diameter of sub-micron powder is 5-6um.
Aforesaid ADCA foaming agent composotion, the wherein said powder that Cellmic C 121 is processed into submicron order is that Cellmic C 121 is entered supersonic nozzle through ejector action, and in the crushiing chamber of pulverizer, pulverize after under action of high-speed airflow, being accelerated to certain speed, and after separating, cyclonic separator obtains the Cellmic C 121 of required submicron order; The described powder that sodium bicarbonate is processed into submicron order is that it passes through under the effect of compressed air, by reinforced Venturi, forms high-speed jet and enters pulverizer, is ground into the satisfactory product of particle diameter.
By technique scheme, ADCA foaming agent composotion of the present invention has following advantages at least:
(1) resolvent of composition of the present invention is white mass, and is nontoxic;
(2) composition of the present invention can be used as food foaming agent, meets food requirement;
(3) the very suitable polyvinyl chloride series products of composition of the present invention and special-shaped material squeezing prod, and be widely used in PVC, PP, ABS.
(4) composition of the present invention has reduced blowing temperature, has improved gas forming amount.
(5) preparation method of the present invention's proposition can prepare the product of submicron order, has improved simultaneously the production automation degree of product and the homogeneity of product granularity.
In sum, ADCA foaming agent composotion that the present invention is special and preparation method thereof and application, it has above-mentioned many advantages and practical value, and at similar product, publish or use and really genus innovation there are no similarly designing among the preparation method and application, no matter it is at product, larger improvement is all arranged on the preparation method or on the function, have large improvement technically, and produced handy and practical effect, and more existing ADCA foaming agent composotion has the multinomial effect of enhancement, thereby more be suitable for practicality, and have the extensive utility value of industry, really be a novelty, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technique means of the present invention, and can be implemented according to the content of specification sheets, below is described in detail as follows with preferred embodiment of the present invention.
Embodiment
Reach technique means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, following preferred embodiment, ADCA foaming agent composotion and preparation and application thereof to foundation the present invention proposes are described in detail as follows.
In the following embodiments, unless otherwise specified, wherein the per-cent of employed ADCA, sodium bicarbonate all is by weight.If whipping agent is the foaming for food, then need to adopt to meet other ADCA of food requirement level and sodium bicarbonate.If industrial, then adopt other ADCA of technical grade and sodium bicarbonate.
In the following embodiments, the equipment such as employed pulverizer, cyclonic separator all are equipment commonly used in this area in the preparation process.It is pointed out that in order better to mix ADCA and sodium bicarbonate, be provided with for the reinforced Venturi that adds sodium bicarbonate at the correct position of the crushiing chamber of pulverizer, this also be those of ordinary skills after seeing the solution of the present invention, can realize.
Embodiment 1
Be respectively 5% sodium bicarbonate and 95% ADCA prepares material according to weight percent, then be prepared as follows.
By supersonic airstream co-grinding ADCA, air-flow is under self High Pressure during by force by the crushiing chamber nozzle, to produce high velocity air, ADCA enters supersonic nozzle through the ejector action of negative pressure, and under action of high-speed airflow, be accelerated to certain speed, high pressure draft is done turning motion and is formed powerful swirling eddy with particle in crushiing chamber, make Particle Acceleration, hybrid concurrency give birth to the behaviors such as impact, collision, pulverize qualified fine particle and shifted onto in the cyclone separating chamber by air-flow, thicker particle then continues to pulverize in crushiing chamber.Filtering through the multiple tracks sub-sieve, reaching 5-6um(is submicron order) specialty products.
Sodium bicarbonate is under the effect of compressed air, by reinforced Venturi, form high-speed jet and enter pulverizer, the pulverizing nozzle of pulverizer periphery has directivity ground to spray high velocity air to crushiing chamber, thereby the collision, friction, the shearing that produce fierceness between sodium bicarbonate are pulverized.High velocity air passes through cyclonic separator again, and sized particles breaks away from the classification eddy flow, is discharged by central outlet, pulverizes air-flow is finished gaseous emission and sodium bicarbonate again through particle collector collection.
Sodium bicarbonate and ADCA are mixed, obtain desired product.The outward appearance of product is white.
Resulting product is detected, and blowing temperature is 160 ℃.Greatly reduce as 210 ℃ of the blowing temperatures of whipping agent than independent ADCA.Gas forming amount under the condition under 25 ℃, 1 normal atmosphere is 225ml/g.Also the gas forming amount 216ml/g of more independent ADCA whipping agent increases.The particle diameter of product is 5-10um.
Embodiment 2
The weight percent of sodium bicarbonate is that the weight percent of 45%, ADCA is 55% in the composition.The preparation method is with embodiment 1.
Resulting product is detected, and blowing temperature is 153 ℃.Gas forming amount under the condition under 25 ℃, 1 normal atmosphere is 220ml/g.The particle diameter of product is 5-10um.
Embodiment 3
The weight percent of sodium bicarbonate is that the weight percent of 35%, ADCA is 65% in the composition.The preparation method is with embodiment 1.
Resulting product is detected, and blowing temperature is 150 ℃.Gas forming amount under the condition under 25 ℃, 1 normal atmosphere is 228ml/g.The particle diameter of product is 5-10um.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, although the present invention discloses as above with preferred embodiment, yet be not to limit the present invention, any those skilled in the art, within not breaking away from the technical solution of the present invention scope, when the method that can utilize above-mentioned announcement and technology contents are made a little change or be modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, any simple modification that foundation technical spirit of the present invention is done above embodiment, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (10)
1. ADCA foaming agent composotion, it contains Cellmic C 121 and sodium bicarbonate.
2. ADCA foaming agent composotion according to claim 1, wherein to account for composition weight per-cent be 55%-95% to Cellmic C 121, it is 5%-45% that sodium bicarbonate accounts for composition weight per-cent.
3. ADCA foaming agent composotion according to claim 2, wherein to account for composition weight per-cent be 65%-85% to Cellmic C 121, it is 15%-35% that sodium bicarbonate accounts for composition weight per-cent.
4. ADCA foaming agent composotion according to claim 3, wherein to account for composition weight per-cent be 75%-80% to Cellmic C 121., it is 20%-25% that sodium bicarbonate accounts for composition weight per-cent.
5. ADCA foaming agent composotion according to claim 1, wherein to account for composition weight per-cent be 65% to Cellmic C 121, it is 35% that sodium bicarbonate accounts for composition weight per-cent.
6. method for preparing the described ADCA foaming agent composotion of arbitrary claim among the claim 1-5, it comprises the steps:
(1) Cellmic C 121 is processed into the powder of submicron order;
(2) sodium bicarbonate is processed into the powder of submicron order; And
(3) Cellmic C 121 after will processing and sodium bicarbonate mix and form the ADCA foaming agent composotion.
7. preparation method according to claim 6, wherein the particle diameter of sub-micron powder is 5-6um.
8. preparation method according to claim 6, the wherein said powder that Cellmic C 121 is processed into submicron order is that Cellmic C 121 is entered supersonic nozzle through ejector action, and in the crushiing chamber of pulverizer, pulverize after under action of high-speed airflow, being accelerated to certain speed, and after separating, cyclonic separator obtains the Cellmic C 121 of required submicron order; The described powder that sodium bicarbonate is processed into submicron order is that it passes through under the effect of compressed air, by reinforced Venturi, forms high-speed jet and enters pulverizer, is ground into the satisfactory product of particle diameter.
9. the described ADCA foaming agent composotion of arbitrary claim is used for the foaming of food among the claim 1-5.
10. the described ADCA foaming agent composotion of arbitrary claim is for the foaming of macromolecular material among the claim 1-5, and wherein said macromolecular material comprises PVC, PP, ABS.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210529477XA CN102964623A (en) | 2012-12-10 | 2012-12-10 | ADCA (Azodicarbonamide) foaming agent composition, as well as preparation method and application thereof |
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| CN201210529477XA CN102964623A (en) | 2012-12-10 | 2012-12-10 | ADCA (Azodicarbonamide) foaming agent composition, as well as preparation method and application thereof |
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| CN102964623A true CN102964623A (en) | 2013-03-13 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102634131A (en) * | 2012-04-11 | 2012-08-15 | 深圳市新纶科技股份有限公司 | Low-density PVC (Poly Vinyl Chloride) injection-molded shoe material and preparation method thereof |
| CN103980520A (en) * | 2014-05-31 | 2014-08-13 | 全椒祥瑞塑胶有限公司 | Plastic foaming agent |
| CN109276010A (en) * | 2018-09-21 | 2019-01-29 | 雅香丽化妆用品（深圳）有限公司 | A method of makeup bristle head and manufacture makeup bristle head |
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| CN102226015A (en) * | 2011-06-11 | 2011-10-26 | 吴宝玲 | Starch composite foamed material and its production method |
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- 2012-12-10 CN CN201210529477XA patent/CN102964623A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102226015A (en) * | 2011-06-11 | 2011-10-26 | 吴宝玲 | Starch composite foamed material and its production method |
Non-Patent Citations (2)
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| 蔡艳华等: "超音速气流粉碎技术应用研究新进展", 《化工进展》, vol. 27, no. 5, 5 May 2008 (2008-05-05) * |
| 郭建斌: "超音速气流粉碎机在AC橡塑发泡剂中的应用", 《化工装备技术》, vol. 24, no. 6, 30 December 2003 (2003-12-30), pages 11 - 12 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102634131A (en) * | 2012-04-11 | 2012-08-15 | 深圳市新纶科技股份有限公司 | Low-density PVC (Poly Vinyl Chloride) injection-molded shoe material and preparation method thereof |
| CN102634131B (en) * | 2012-04-11 | 2014-06-18 | 深圳市新纶科技股份有限公司 | Low-density PVC (Poly Vinyl Chloride) injection-molded shoe material and preparation method thereof |
| CN103980520A (en) * | 2014-05-31 | 2014-08-13 | 全椒祥瑞塑胶有限公司 | Plastic foaming agent |
| CN109276010A (en) * | 2018-09-21 | 2019-01-29 | 雅香丽化妆用品（深圳）有限公司 | A method of makeup bristle head and manufacture makeup bristle head |
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Application publication date: 20130313 |