CN103111210A - Technology for modifying ADC foaming agent - Google Patents
Technology for modifying ADC foaming agent Download PDFInfo
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- CN103111210A CN103111210A CN2013100598237A CN201310059823A CN103111210A CN 103111210 A CN103111210 A CN 103111210A CN 2013100598237 A CN2013100598237 A CN 2013100598237A CN 201310059823 A CN201310059823 A CN 201310059823A CN 103111210 A CN103111210 A CN 103111210A
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- adc
- mixer
- blowing agent
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Abstract
The invention discloses a technology for modifying an ADC foaming agent, which comprises the following steps of: 1) adding ADC powders produced by different batches or different reaction kettles into a mixer, and sufficiently mixing to obtain a material; 2) grinding the mixed material in a grinder, wherein the particle size of the ground material is controlled to be 2-20 microns; and 3) adding the material modified by the grinder into the mixer, and sufficiently mixing to obtain a high-stability ADC foaming agent. The technology disclosed by the invention has the beneficial effects that by mixing the ADC powder produced by batch reaction and homogenizing the original products of different quality batches, a product with high stability of overall quality is formed, the defective rate caused by unstable quality in the modification process or using process is reduced, and relatively great economic benefits are created.
Description
Technical field
The present invention relates to ADC blowing agent field, be specifically related to a kind of technique of modification ADC blowing agent.
Background technology
ADC blowing agent formal name used at school Celogen Az claims again azodicarbonamide, and outward appearance is light yellow crystalline powder.
The ADC blowing agent belongs to organic thermal decomposition type blowing agent, has a gas forming amount large, and bubble is even, and densification is not polluted goods, and is not combustion-supporting, and odorless does not corrode mould, easily controls the characteristics such as temperature.Be used in normal pressure foaming and pressure expansion, be widely used in polyvinyl chloride, polyethylene, polypropylene, synthetic normal pressure or the pressure expansion processing that reaches natural rubber in synthetic material.
Basically all adopt the 20m3 stills for air blowing and carry out still reaction due to the production of ADC blowing agent, every still output is 3t approximately, is intermittently operated, therefore if every batch products surpasses 3t, using in existing wrapped situation product quality homogeneous in being difficult to guarantee same batch.In follow-up modifying process, due to the former opaque amount heterogeneity that reflects, the product after modification also changes thereupon.
The ADC blowing agent has the resolution characteristic of self, for it uses in the various plastic cement products such as PVC, PE, EVA, and obtain that expansion ratio difference, foaming aperture are different, the different final products of blowing temperature, and need to carry out modification to it, can be applicable to multiple product.This such as just need to pulverize at modification operation.
And the ADC product is in use continuous as blowing agent, requires its quality homogeneous as far as possible, and the product expansion ratio after the guarantee foaming is identical, improves the qualification rate of product.Explanation, the steady quality of ADC product is worth studying very much, intermittently change at present ADC production, use under the condition of serialization, the stability that the method that employing mixes is improved the quality of products reduces the mass discrepancy between each batch, and pulverizes on this basis, produce the ADC product that is suitable for the different application occasion, have very high economic benefit.
Summary of the invention
The object of the invention is to overcome the deficiency that prior art exists, and provide a kind of technique of modification ADC blowing agent, by mixer, the product of different batches is mixed, carrying out air-flow crushing, mix again, thereby the ADC blowing agent is carried out modification, improve the technique of ADC blowing agent quality stability.
The objective of the invention is to complete by following technical solution.The technique of this modification ADC blowing agent, this technique are to adopt mixer and disintegrating apparatus etc. to connect, and the product product of ADC different batches is mixed, and reduce of poor quality between each batch, then are ground into the ADC product of the different-grain diameter that is applicable to different purposes.The method comprises following step:
1), different batches or ADC powder that the differential responses still is produced are joined in mixer, fully be mixed into material;
2), mixed material pulverizes in pulverizer, the material particular diameter after pulverizing is controlled in 2 ~ 20 μ m scopes and regulates;
3), join again in mixer through the material after the pulverizer modification, fully mix, the ADC blowing agent of high stability, make mixing of materials even, reach identical quality index.
The volume size of described mixer is at 2m
3~ 100m
3Between, can regulate according to the requirement of single batch products.Mixer can be coulter type mixer, can be also the mixer of the other forms of ADC of being suitable for powder.
Described pulverizer is the airslide disintegrating mill of unautogenous heat, is that 0.6 ~ 1.0MPa(G) compressed air is pulverized by pressure, and the product cut size after pulverizing can be adjustable in 2 ~ 20 μ m scopes.
Auxiliary material also can be added or do not added to method of the present invention, adjusts according to the difference of final products.
Beneficial effect of the present invention is: by the ADC powder of producing by the reaction at intermittence is mixed, original product quality batch different product homogenising, form the product of total quality high stability, reduce the generation of the defect ware rate that causes because quality is unstable in modifying process or use procedure, had higher economic benefit.
The specific embodiment
The present invention is further elaborated below by the specific embodiment, and embodiment will help to understand better the present invention, but the present invention is not limited only to following embodiment.
Embodiment
Get each 200g of the former powder of ADC of the different batches of different production of units, measure respectively its gas forming amount.Its result is following, and (particle diameter is D
50):
Following two tests compare test with above-mentioned former powder respectively.
One, the 100g that gets respectively in above-mentioned sample mixes, and is divided into five parts, and sample analysis, measure its gas forming amount and particle diameter respectively, and result is following, and (particle diameter is D
50):
Be mixed sample that 6 μ m set technological parameter according to product cut size after pulverizing, pulverize by airslide disintegrating mill, product is divided into five parts, and sample analysis, measure its gas forming amount and particle diameter respectively, and result is following, and (particle diameter is D
50):
Two, getting the remaining 100g of above-mentioned sample, do not mix, is directly that 6 μ m setting technological parameters are constant according to product cut size after pulverizing, pulverize by airslide disintegrating mill, to sample difference sample analysis, measure its gas forming amount and particle diameter, result is following, and (particle diameter is D
50):
Interpretation of result: after mixing, the mass discrepancy between each batch of product is eliminated substantially, and also more even through the product cut size after pulverizing, the ADC that the technological parameter of compound setting is produced pulverizes result; And directly pulverize without mixing, although the little change of technological parameter, but inhomogeneous due to raw-material particle diameter, cause the particle diameter of product also to differ larger with setting value, compare and test one, two result, test one result obviously is better than testing two result, and the validity of this new technology is described.
At last, should be pointed out that above example is only the more representational example of the present invention.Obviously, technical scheme of the present invention is not limited to above-mentioned example, and many distortion can also be arranged, and all distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (3)
1. the technique of a modification ADC blowing agent, it is characterized in that: the method comprises following step:
1), different batches or ADC powder that the differential responses still is produced are joined in mixer, fully be mixed into material;
2), mixed material pulverizes in pulverizer, the material particular diameter after pulverizing is controlled in 2 ~ 20 μ m scopes and regulates;
3), join again in mixer through the material after the pulverizer modification, fully mix, the ADC blowing agent of high stability.
2. the technique of modification ADC blowing agent according to claim 1, it is characterized in that: the volume size of described mixer is at 2m
3~ 100m
3Between.
3. the technique of modification ADC blowing agent according to claim 1, it is characterized in that: described pulverizer is the airslide disintegrating mill of unautogenous heat, pulverizes by the compressed air that pressure is 0.6 ~ 1.0MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100598237A CN103111210A (en) | 2013-02-26 | 2013-02-26 | Technology for modifying ADC foaming agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100598237A CN103111210A (en) | 2013-02-26 | 2013-02-26 | Technology for modifying ADC foaming agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103111210A true CN103111210A (en) | 2013-05-22 |
Family
ID=48409620
Family Applications (1)
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|---|---|---|---|
| CN2013100598237A Pending CN103111210A (en) | 2013-02-26 | 2013-02-26 | Technology for modifying ADC foaming agent |
Country Status (1)
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|---|---|
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1706553A (en) * | 2004-06-08 | 2005-12-14 | 兰克赛斯德国有限公司 | Method for producing ground fine dispersion materials |
| CN1907552A (en) * | 2006-08-15 | 2007-02-07 | 杭州海虹精细化工有限公司 | Composite foamable agent and its preparation method |
| CN101225277A (en) * | 2008-01-31 | 2008-07-23 | 宁波市派特勒粉末涂料有限公司 | Powder coating capable of creating bubble appearance on surface of sprayed articles |
| CN101550249A (en) * | 2008-04-02 | 2009-10-07 | 上海化工研究院 | Halogen-free expandable fire retardant fiber glass reinforced polypropylene material and preparation method thereof |
| CN101999348A (en) * | 2010-10-26 | 2011-04-06 | 江苏七洲绿色化工股份有限公司 | Preparation method of pesticide effervescent tablet |
| CN202207551U (en) * | 2011-07-21 | 2012-05-02 | 上海联业农业科技有限公司 | Mixed powder material production line |
| CN102432908A (en) * | 2011-08-02 | 2012-05-02 | 杭州海虹精细化工有限公司 | Low-temperature modified foaming agent and preparation method thereof |
| CN202536058U (en) * | 2012-04-27 | 2012-11-21 | 宿迁洪祥饲料科技有限公司 | Feed grinder provided with premixing bin |
-
2013
- 2013-02-26 CN CN2013100598237A patent/CN103111210A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1706553A (en) * | 2004-06-08 | 2005-12-14 | 兰克赛斯德国有限公司 | Method for producing ground fine dispersion materials |
| CN1907552A (en) * | 2006-08-15 | 2007-02-07 | 杭州海虹精细化工有限公司 | Composite foamable agent and its preparation method |
| CN101225277A (en) * | 2008-01-31 | 2008-07-23 | 宁波市派特勒粉末涂料有限公司 | Powder coating capable of creating bubble appearance on surface of sprayed articles |
| CN101550249A (en) * | 2008-04-02 | 2009-10-07 | 上海化工研究院 | Halogen-free expandable fire retardant fiber glass reinforced polypropylene material and preparation method thereof |
| CN101999348A (en) * | 2010-10-26 | 2011-04-06 | 江苏七洲绿色化工股份有限公司 | Preparation method of pesticide effervescent tablet |
| CN202207551U (en) * | 2011-07-21 | 2012-05-02 | 上海联业农业科技有限公司 | Mixed powder material production line |
| CN102432908A (en) * | 2011-08-02 | 2012-05-02 | 杭州海虹精细化工有限公司 | Low-temperature modified foaming agent and preparation method thereof |
| CN202536058U (en) * | 2012-04-27 | 2012-11-21 | 宿迁洪祥饲料科技有限公司 | Feed grinder provided with premixing bin |
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Application publication date: 20130522 |