CN103772600A - PDA preparation method - Google Patents
PDA preparation method Download PDFInfo
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- CN103772600A CN103772600A CN201210398531.1A CN201210398531A CN103772600A CN 103772600 A CN103772600 A CN 103772600A CN 201210398531 A CN201210398531 A CN 201210398531A CN 103772600 A CN103772600 A CN 103772600A
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Abstract
A PDA preparation method comprises the following steps: 1, adding Span80, T-80 and liquid paraffin into a reactor according to a mass ratio of 1:1:2, and uniformly mixing; 2, adding dimethyl diallyl ammonium chloride and acrylamide to the reactor according to a mass ratio of 1:4-6, and emulsifying, wherein a ratio of the total mass of dimethyl diallyl ammonium chloride and acrylamide to the total mass of Span80, T-80 and liquid paraffin is 20-30:1; 3, adding a sodium hydrosulphite solution having a quality concentration of 5% into the reactor, emulsifying, adding a potassium persulfate solution having a mass concentration of 5%, and emulsifying, wherein a mass ratio of sodium hydrosulphite to potassium persulfate is 2:1, and a ratio of the total mass of sodium hydrosulphite and potassium persulphate to the total mass of substances added in step 1 and step 2 is 0.1%; and 4, heating under the protection of nitrogen, demulsifying, washing, and drying to obtain PDA. The method has the advantages of high monomer conversion rate, and easy control of the reaction process, and a product obtained in the invention has a good dissolvability.
Description
Technical field
The present invention relates to the method for PDA of preparation a kind of.
Background technology
The multipolymer (PDA) of dimethyl diallyl ammonium chloride and acrylamide is a kind of linear organic polymer coargulator with high positive charge, it possesses stable cation mono meta structure, good is water-soluble, and high effect nontoxic, is usually used in the sewage treatment area of various industries.The conventional aqueous solution polymerization of current preparation, but because dimethyl diallyl ammonium chloride and acrylamide speed of reaction differ greatly, make positively charged ion and nonionic cell distribution inequality in product, cationic monomer low conversion rate.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the object of the present invention is to provide the method for PDA of preparation a kind of, preparation method is simple, and product solvability is good.
To achieve these goals, the technical solution used in the present invention is:
A method of preparing PDA, comprises the steps:
Sorbester p17, T-80 and whiteruss that step 1 is 1:1:2 by mass ratio add in reactor, mix;
Step 2, joins emulsification 1h in reactor with mass ratio 1:4-6, the total mass of dimethyl diallyl ammonium chloride and acrylamide by dimethyl diallyl ammonium chloride and acrylamide: the total mass of sorbester p17, T-80 and whiteruss is 20-30:1;
Step 3, the sodium sulfite solution that is 5% by mass concentration adds emulsification 0.5h in reactor, adding mass concentration is 5% potassium persulfate solution emulsification 0.5h again, S-WAT and Potassium Persulphate mass ratio are 2:1, and S-WAT and Potassium Persulphate total mass are for adding 0.1% of material total mass in step 1 and two;
Step 4 heats 2h under nitrogen protection condition, carries out afterwards demulsification, washing, dry, obtains PDA.
Compared with prior art, monomer conversion is high in the present invention, reaction process be easy to control, product solvability good.
Embodiment
Below in conjunction with embodiment, the present invention is carried out to more detailed explanation.
The present invention is a kind of method of preparing PDA, comprises the steps:
Sorbester p17, T-80 and whiteruss that step 1 is 1:1:2 by mass ratio add in reactor, mix;
Step 2, joins emulsification 1h in reactor with mass ratio 1:4-6, the total mass of dimethyl diallyl ammonium chloride and acrylamide by dimethyl diallyl ammonium chloride and acrylamide: the total mass of sorbester p17, T-80 and whiteruss is 20-30:1;
Step 3, the sodium sulfite solution that is 5% by mass concentration adds emulsification 0.5h in reactor, adding mass concentration is 5% potassium persulfate solution emulsification 0.5h again, S-WAT and Potassium Persulphate mass ratio are 2:1, and S-WAT and Potassium Persulphate total mass are for adding 0.1% of material total mass in step 1 and two;
Step 4 heats 2h under nitrogen protection condition, carries out afterwards demulsification, washing, dry, obtains PDA.
Claims (1)
1. a method of preparing PDA, is characterized in that, comprises the steps:
Sorbester p17, T-80 and whiteruss that step 1 is 1:1:2 by mass ratio add in reactor, mix;
Step 2, joins emulsification 1h in reactor with mass ratio 1:4-6, the total mass of dimethyl diallyl ammonium chloride and acrylamide by dimethyl diallyl ammonium chloride and acrylamide: the total mass of sorbester p17, T-80 and whiteruss is 20-30:1;
Step 3, the sodium sulfite solution that is 5% by mass concentration adds emulsification 0.5h in reactor, adding mass concentration is 5% potassium persulfate solution emulsification 0.5h again, S-WAT and Potassium Persulphate mass ratio are 2:1, and S-WAT and Potassium Persulphate total mass are for adding 0.1% of material total mass in step 1 and two;
Step 4 heats 2h under nitrogen protection condition, carries out afterwards demulsification, washing, dry, obtains PDA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210398531.1A CN103772600A (en) | 2012-10-18 | 2012-10-18 | PDA preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210398531.1A CN103772600A (en) | 2012-10-18 | 2012-10-18 | PDA preparation method |
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| CN103772600A true CN103772600A (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210398531.1A Pending CN103772600A (en) | 2012-10-18 | 2012-10-18 | PDA preparation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105949365A (en) * | 2016-05-30 | 2016-09-21 | 山东鲁岳化工有限公司 | Bead-shaped hyperviscosity water-soluble cationic polymer and preparation method thereof |
| CN108299593A (en) * | 2017-12-25 | 2018-07-20 | 威海翔泽新材料科技有限公司 | A kind of method of preparation and use of ammonium hydroxide detersive |
-
2012
- 2012-10-18 CN CN201210398531.1A patent/CN103772600A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105949365A (en) * | 2016-05-30 | 2016-09-21 | 山东鲁岳化工有限公司 | Bead-shaped hyperviscosity water-soluble cationic polymer and preparation method thereof |
| CN108299593A (en) * | 2017-12-25 | 2018-07-20 | 威海翔泽新材料科技有限公司 | A kind of method of preparation and use of ammonium hydroxide detersive |
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Application publication date: 20140507 |