CN103819116B - A kind of sulfonated melamine compound resin water reducer and preparation method thereof - Google Patents
A kind of sulfonated melamine compound resin water reducer and preparation method thereof Download PDFInfo
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- CN103819116B CN103819116B CN201310695677.7A CN201310695677A CN103819116B CN 103819116 B CN103819116 B CN 103819116B CN 201310695677 A CN201310695677 A CN 201310695677A CN 103819116 B CN103819116 B CN 103819116B
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- water reducer
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Abstract
The invention belongs to the technical field of resin, be specifically related to a kind of sulfonated melamine compound resin water reducer and preparation method thereof.This kind of sulfonated melamine compound resin water reducer, comprise following raw material: trimeric cyanamide, liquid formaldehyde and water, wherein the weight part ratio of trimeric cyanamide, liquid formaldehyde, water is (10 ~ 20): (25 ~ 52): (7 ~ 15).The molecular resin amount of described sulfonated melamine compound resin water reducer is stablized, and in concrete application, to the good dispersity of cement, water-reducing rate is high, early strong successful.
Description
Technical field
The invention belongs to the technical field of resin, be specifically related to a kind of sulfonated melamine compound resin water reducer and preparation method thereof.
Background technology
Sulfonated melamine compound resin water reducer (being called for short SMF) is a kind of water-soluble ionic polymers, important role in building industry.There are the following problems for current synthesis technique itself: it is high that (1) reaction molecular amount controls difficulty, is difficult to accurately hold the molecular weight controlling reaction product in reaction process; (2) resin stability is poor, and the resin property obtained is unstable, in use makes the water-reducing rate of resin water reducer greatly reduce; (3) concrete application in inferior suitability, the mobility in the quiet slurry of cement and bad dispersibility, have impact on the performance of cement.
Summary of the invention
The object of the invention is to the defect for above-mentioned existence and a kind of sulfonated melamine compound resin water reducer and preparation method thereof is provided, the molecular resin amount of described sulfonated melamine compound resin water reducer is stablized, in concrete application, to the good dispersity of cement, water-reducing rate is high, early strong successful.
Technical scheme of the present invention is: a kind of sulfonated melamine compound resin water reducer, comprise following raw material: trimeric cyanamide, liquid formaldehyde and water, wherein the weight part ratio of trimeric cyanamide, liquid formaldehyde, water is (10 ~ 20): (25 ~ 52): (7 ~ 15).
Described sulfonated melamine compound resin water reducer, comprises following raw material: trimeric cyanamide, liquid formaldehyde and water, and wherein the weight part ratio of trimeric cyanamide, liquid formaldehyde, water is 10:25:7.
Described sulfonated melamine compound resin water reducer, comprises following raw material: trimeric cyanamide, liquid formaldehyde and water, and wherein the weight part ratio of trimeric cyanamide, liquid formaldehyde, water is 20:52:15.
Described sulfonated melamine compound resin water reducer, comprises following raw material: trimeric cyanamide, liquid formaldehyde and water, and wherein the weight part ratio of trimeric cyanamide, liquid formaldehyde, water is 15:35:9.
A kind of preparation method of sulfonated melamine compound resin water reducer, comprise the following steps: first by trimeric cyanamide, liquid formaldehyde and water by weight (10 ~ 20): (25 ~ 52): (7 ~ 15) carry out being mixed to get mixture, then sodium hydroxide solution adjust ph to 9.0 ~ 10.0 are used, be heated to 40 ~ 50 DEG C, insulation reaction 60 minutes; React and add Sodium Pyrosulfite after 60 minutes, wherein the weight part ratio of Sodium Pyrosulfite and described mixture is 1:4, by liquid caustic soda adjust ph to 11, is incubated sulfonation reaction and starts cooling after 90 minutes at 85 ~ 90 DEG C; In time being cooled to 50 DEG C, adding hydrochloric acid adjust pH to 4, added liquid caustic soda adjust pH to 9 after 30 minutes after, being warming up to 80 DEG C, started to be cooled to normal temperature after 40 minutes, obtain described resin water reducer.
Described liquid formaldehyde concentration is 35% ~ 37%.
Beneficial effect of the present invention is: the preparation method of sulfonated melamine compound resin water reducer of the present invention is to the adjustment such as weight ratio, technological process reaction parameter between feed composition, addO-on therapy order, time, composition, the sulphonation rate obtained is greatly improved, high sulfonated melamine resin molecular weight stabilizers, in concrete application, to cement good dispersity, water-reducing rate is 25% ~ 34%, is greatly improved, early strong successful.
Embodiment
Below by specific embodiment, the present invention will be described in detail.
Embodiment 1
Described sulfonated melamine compound resin water reducer, comprises following raw material: trimeric cyanamide, liquid formaldehyde and water, and wherein the weight part ratio of trimeric cyanamide, liquid formaldehyde, water is 10:25:7.
The preparation method of described sulfonated melamine compound resin water reducer, comprise the following steps: first by trimeric cyanamide, liquid formaldehyde and water by weight 10:25:7 carry out being mixed to get mixture, then sodium hydroxide solution adjust ph to 9.0 is used, be heated to 40 DEG C, insulation reaction 60 minutes; React and add Sodium Pyrosulfite after 60 minutes, wherein the weight part ratio of Sodium Pyrosulfite and described mixture is 1:4, and Sodium Pyrosulfite adition process must slowly add, and time controling was at 10 minutes.By liquid caustic soda adjust ph to 11, at 85 DEG C, be incubated sulfonation reaction after 90 minutes, start cooling; In time being cooled to 50 DEG C, adding hydrochloric acid adjust pH to 4, added liquid caustic soda adjust pH to 9 after 30 minutes after, being warming up to 80 DEG C, started to be cooled to normal temperature after 40 minutes, obtain described resin water reducer.
Embodiment 2
Described sulfonated melamine compound resin water reducer, comprises following raw material: trimeric cyanamide, liquid formaldehyde and water, and wherein the weight part ratio of trimeric cyanamide, liquid formaldehyde, water is 20:52:15.
The preparation method of described sulfonated melamine compound resin water reducer, comprise the following steps: first by trimeric cyanamide, liquid formaldehyde and water by weight 20:52:15 carry out being mixed to get mixture, then sodium hydroxide solution adjust ph to 9.5 is used, be heated to 45 DEG C, insulation reaction 60 minutes; React and add Sodium Pyrosulfite after 60 minutes, wherein the weight part ratio of Sodium Pyrosulfite and described mixture is 1:4, by liquid caustic soda adjust ph to 11, is incubated sulfonation reaction and starts cooling after 90 minutes at 88 DEG C; In time being cooled to 50 DEG C, adding hydrochloric acid adjust pH to 4, added liquid caustic soda adjust pH to 9 after 30 minutes after, being warming up to 80 DEG C, started to be cooled to normal temperature after 40 minutes, obtain described resin water reducer.
Embodiment 3
Described sulfonated melamine compound resin water reducer, comprises following raw material: trimeric cyanamide, liquid formaldehyde and water, and wherein the weight part ratio of trimeric cyanamide, liquid formaldehyde, water is 15:35:9.
The preparation method of described sulfonated melamine compound resin water reducer, comprise the following steps: first by trimeric cyanamide, liquid formaldehyde and water by weight 15:35:9 carry out being mixed to get mixture, then sodium hydroxide solution adjust ph to 10.0 is used, be heated to 50 DEG C, insulation reaction 60 minutes; React and add Sodium Pyrosulfite after 60 minutes, wherein the weight part ratio of Sodium Pyrosulfite and described mixture is 1:4, by liquid caustic soda adjust ph to 11, is incubated sulfonation reaction and starts cooling after 90 minutes at 90 DEG C; In time being cooled to 50 DEG C, adding hydrochloric acid adjust pH to 4, added liquid caustic soda adjust pH to 9 after 30 minutes after, being warming up to 80 DEG C, started to be cooled to normal temperature after 40 minutes, obtain described resin water reducer.
Embodiment 1, embodiment 2, embodiment 3 are compared as follows table with the performance index of the conventional products on market respectively:
From These parameters, the indices of sulfonated melamine resin high efficiency water reducing agent prepared by embodiment of the present invention is apparently higher than the usual resins on market, and resin stability is greatly improved.
Claims (2)
1. the preparation method of a sulfonated melamine compound resin water reducer, comprise the following steps: first by trimeric cyanamide, liquid formaldehyde and water by weight (10 ~ 20): (25 ~ 52): (7 ~ 15) carry out being mixed to get mixture, then sodium hydroxide solution adjust ph to 9.0 ~ 10.0 are used, be heated to 40 ~ 50 DEG C, insulation reaction 60 minutes; React and add Sodium Pyrosulfite after 60 minutes, wherein the weight part ratio of Sodium Pyrosulfite and described mixture is 1:4, by liquid caustic soda adjust ph to 11, is incubated sulfonation reaction and starts cooling after 90 minutes at 85 ~ 90 DEG C; In time being cooled to 50 DEG C, adding hydrochloric acid adjust pH to 4, added liquid caustic soda adjust pH to 9 after 30 minutes after, being warming up to 80 DEG C, started to be cooled to normal temperature after 40 minutes, obtain described resin water reducer.
2. the preparation method of sulfonated melamine compound resin water reducer according to claim 1, it is characterized in that, described liquid formaldehyde concentration is 35% ~ 37%.
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| CN201310695677.7A CN103819116B (en) | 2013-12-17 | 2013-12-17 | A kind of sulfonated melamine compound resin water reducer and preparation method thereof |
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| CN201310695677.7A CN103819116B (en) | 2013-12-17 | 2013-12-17 | A kind of sulfonated melamine compound resin water reducer and preparation method thereof |
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| CN103819116B true CN103819116B (en) | 2016-02-03 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105731857A (en) * | 2016-02-20 | 2016-07-06 | 深圳爱易瑞科技有限公司 | Novel sulfonation melamino-formaldehyde resin and preparation method thereof |
| CN106370774A (en) * | 2016-08-23 | 2017-02-01 | 濮阳绿宇泡绵有限公司 | Improved chemical method for analyzing structure of melamine resin |
Citations (5)
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| CN101723615A (en) * | 2009-12-18 | 2010-06-09 | 江苏特密斯混凝土外加剂有限公司 | Method for preparing novel sulfamic acid high-efficiency concrete water reducing agent |
| CN101845132A (en) * | 2010-05-06 | 2010-09-29 | 山东宏艺科技股份有限公司 | Modified melamine high-efficiency water reducing agent with low cost |
| CN102304211A (en) * | 2011-05-27 | 2012-01-04 | 江苏博特新材料有限公司 | Sulfonated melamine-formaldehyde polycondensate water reducer and preparation method thereof |
| CN102452806A (en) * | 2010-10-18 | 2012-05-16 | 江苏汇迪建材有限公司 | Novel melamine water reducer and preparation method |
| CN103254380A (en) * | 2013-05-10 | 2013-08-21 | 济南融祺建材有限公司 | Production method of melamine high-efficiency water reducer |
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- 2013-12-17 CN CN201310695677.7A patent/CN103819116B/en active Active
Patent Citations (5)
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| CN101723615A (en) * | 2009-12-18 | 2010-06-09 | 江苏特密斯混凝土外加剂有限公司 | Method for preparing novel sulfamic acid high-efficiency concrete water reducing agent |
| CN101845132A (en) * | 2010-05-06 | 2010-09-29 | 山东宏艺科技股份有限公司 | Modified melamine high-efficiency water reducing agent with low cost |
| CN102452806A (en) * | 2010-10-18 | 2012-05-16 | 江苏汇迪建材有限公司 | Novel melamine water reducer and preparation method |
| CN102304211A (en) * | 2011-05-27 | 2012-01-04 | 江苏博特新材料有限公司 | Sulfonated melamine-formaldehyde polycondensate water reducer and preparation method thereof |
| CN103254380A (en) * | 2013-05-10 | 2013-08-21 | 济南融祺建材有限公司 | Production method of melamine high-efficiency water reducer |
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| 磺化三聚氰胺甲醛树脂的合成工艺研究;丁玉斌等;《太原理工大学学报》;20010520;第32卷(第03期);全文 * |
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Denomination of invention: Sulfonated melamine formaldehyde resin water reducing agent and preparation method thereof Effective date of registration: 20180910 Granted publication date: 20160203 Pledgee: Binzhou rural commercial bank Limited by Share Ltd Zhanhua branch Pledgor: Shandong Ositer Chemical Co., Ltd. Registration number: 2018990000814 |