CN1262568C - Method for preparing high water-absorption resin for soilless culture - Google Patents
Method for preparing high water-absorption resin for soilless culture Download PDFInfo
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- CN1262568C CN1262568C CN 200410011268 CN200410011268A CN1262568C CN 1262568 C CN1262568 C CN 1262568C CN 200410011268 CN200410011268 CN 200410011268 CN 200410011268 A CN200410011268 A CN 200410011268A CN 1262568 C CN1262568 C CN 1262568C
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Abstract
The present invention belongs to a preparation method for resin which is used for soilless culture and has high water absorption. Firstly, a mixed solution of methacrylate and acrylamide is prepared and then is added with calcium hydroxide, potassium hydroxide, sodium hydroxide or ammonium hydroxide to regulate a pH value from six to eight, is evenly mixed, is added with a crosslinking agent, an initiating agent, additives and pigments with needed colours, such as carmine, rhodamine toner, brilliant blue, methyl red or grape purple, etc., and the added quality of the crosslinking agent is 0.01% to 1% of the weight of acrylic monomer. Finally, the system is polymerized through initiation under the condition of 25 to 55 DEG C. A polymerization reaction is carried out for three to five hours to obtain seven colour resin which has high water absorption and has 40 to 80 water absorption times.
Description
Technical field
The present invention relates to the preparation method of a kind of soilless culture with super absorbent resin.
Background technology
The super absorbent resin of soilless culture, regular outward appearance and stronger elasticity are arranged after the suction, because the water retention property of himself, can be widely used in viewing and admiring the soilless culture of flowers and plants, can effectively beautify living environment, improve IAQ (indoor air quality), all right water saving, sanitation and hygiene, both free from environmental pollution, be not environmental pollution yet.Chinese patent 92100088.X discloses a kind of medium product for soilless culture, be to be processed into textile of chemical fibre tankage or cutting waste material, the soil-less culture medium of producing with this method hardens easily, and the water retention property of himself is poor, and the textile of chemical fibre waste material also easily brings certain pollution to environment in addition.
Summary of the invention
The purpose of this invention is to provide the preparation method of a kind of soilless culture with super absorbent resin.
The present invention adopts two kinds of organic monomers and special pigment to add initiator and the linking agent copolymerization forms.Polymkeric substance has certain water-absorbent, water-retentivity and gel-strength, can replace soil to supply with plant moisture, and the pigment of adding can make resin have more color, has increased sight.
Present method is at first prepared the mixing solutions of methacrylic acid and acrylamide, both weight ratios are 1: 1～4, add calcium hydroxide, potassium hydroxide, sodium hydroxide or ammonium hydroxide then, regulating the pH value is 6～8, after mixing, add linking agent, linking agent is glycerol, epoxy chloropropane, methene base bisacrylamide or glycidyl acrylate, and add-on is 0.01%～1% of an Acrylic Acid Monomer weight.Add initiator and additive again, initiator is ammonium persulphate, Potassium Persulphate or Sodium Persulfate, and add-on is 0.05～0.5% of an Acrylic Acid Monomer weight.Additive is Sodium Metabisulfite, potassium metabisulfite or ammonium meta-bisulfite, and add-on is 0.05～0.3% of an Acrylic Acid Monomer weight, and after all mixing, thin up to acrylic acid solution monomer concentration is 10～50%.The pigment that adds required color then, as famille rose, rhodamine b extra 500, light blue, methyl red or greyish purple etc., add-on is 0.05～1% of an acrylic acid solution.At last with this system initiated polymerization under 25～55 ℃ of conditions.Polyreaction 3～5h gets final product to such an extent that the suction multiple is 40～80 times a colored super absorbent resin, also claims seven color quartzy mud.
Embodiment
Embodiment 1:
Take by weighing 15g methacrylic acid and 15g acrylamide, adding calcium hydroxide adjusting pH value is 6, the epoxy chloropropane that adds Acrylic Acid Monomer weight 0.01%, the Potassium Persulphate that adds Acrylic Acid Monomer weight 0.05% more successively, the ammonium meta-bisulfite of Acrylic Acid Monomer weight 0.05%, adding water, to make solution Acrylic Acid Monomer concentration be 10%, add the 0.05g rhodamine b extra 500 again, at 55 ℃ of following initiated polymerizations, reaction 3h, getting pink quartzy mud suction multiple is 65 times.
Embodiment 2:
Take by weighing 10g methacrylic acid and 25g acrylamide, adding potassium hydroxide adjusting pH value is 8, the methene base bisacrylamide that adds Acrylic Acid Monomer weight 0.1%, the Sodium Persulfate that adds Acrylic Acid Monomer weight 0.5% more successively, the potassium metabisulfite of Acrylic Acid Monomer weight 0.3%, adding water, to make solution Acrylic Acid Monomer concentration be 50%, add the 1g famille rose again, at 25 ℃ of following initiated polymerizations, reaction 4h, getting red quartzy mud suction multiple is 40 times.
Embodiment 3:
Take by weighing 10g methacrylic acid and 30g acrylamide, adding sodium hydroxide adjusting pH value is 7, the glycerol that adds Acrylic Acid Monomer weight 0.35%, the Potassium Persulphate that adds Acrylic Acid Monomer weight 0.25% more successively, the Sodium Metabisulfite of Acrylic Acid Monomer weight 0.15%, adding water, to make solution Acrylic Acid Monomer concentration be 30%, add the 0.3g light blue again, at 35 ℃ of following initiated polymerizations, reaction 3h, getting blue crystal mud suction multiple is 55 times.
Embodiment 4:
Take by weighing 10 acrylamides and 40g vinylformic acid, adding ammonium hydroxide adjusting pH value is 7, the glycidyl acrylate that adds Acrylic Acid Monomer weight 1%, the ammonium persulphate that adds Acrylic Acid Monomer weight 0.35% more successively, the ammonium meta-bisulfite of Acrylic Acid Monomer weight 0.25%, adding water, to make solution Acrylic Acid Monomer concentration be 30%, add the 0.3g methyl red again, at 35 ℃ of following initiated polymerizations, reaction 5h, getting yellow crystal mud suction multiple is 55 times.
Embodiment 5:
Take by weighing 10g methacrylic acid and 18g acrylamide, adding potassium hydroxide adjusting pH value is 7, the methene base bisacrylamide that adds Acrylic Acid Monomer weight 0.1%, the Sodium Persulfate that adds Acrylic Acid Monomer weight 0.5% more successively, the potassium metabisulfite of Acrylic Acid Monomer weight 0.3%, adding water, to make solution Acrylic Acid Monomer concentration be 40%, it is greyish purple to add 1g again, at 45 ℃ of following initiated polymerizations, reaction 4h, getting the quartzy mud suction of purple multiple is 80 times.
Claims (1)
1, a kind of soilless culture preparation method of super absorbent resin, the mixing solutions that it is characterized in that methacrylic acid and acrylamide, both weight ratios are 1: 1～4, add calcium hydroxide, potassium hydroxide, sodium hydroxide or ammonium hydroxide, regulating the pH value is 6～8, mix, add linking agent, linking agent is a glycerol, epoxy chloropropane, methene base bisacrylamide or glycidyl acrylate, add-on is 0.01%～1% of an Acrylic Acid Monomer weight, add initiator and additive again, initiator is an ammonium persulphate, Potassium Persulphate or Sodium Persulfate, add-on is 0.05～0.5% of an Acrylic Acid Monomer weight, additive is a Sodium Metabisulfite, potassium metabisulfite or ammonium meta-bisulfite, add-on is 0.05～0.3% of an Acrylic Acid Monomer weight, after all mixing, thin up to acrylic acid solution monomer concentration is 10～50%, the pigment that adds required color then, be famille rose, rhodamine b extra 500, light blue, methyl red or greyish purple, add-on is 0.05～1% of an acrylic acid solution, at last with this system initiated polymerization under 25～55 ℃ of conditions, polyreaction 3～5h gets final product to such an extent that the suction multiple is 40～80 times seven color super absorbent resins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410011268 CN1262568C (en) | 2004-11-26 | 2004-11-26 | Method for preparing high water-absorption resin for soilless culture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410011268 CN1262568C (en) | 2004-11-26 | 2004-11-26 | Method for preparing high water-absorption resin for soilless culture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1631925A CN1631925A (en) | 2005-06-29 |
| CN1262568C true CN1262568C (en) | 2006-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200410011268 Expired - Fee Related CN1262568C (en) | 2004-11-26 | 2004-11-26 | Method for preparing high water-absorption resin for soilless culture |
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| CN (1) | CN1262568C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100549100C (en) * | 2005-08-12 | 2009-10-14 | 中国矿业大学(北京) | Humate compound water retaining agent and preparation method thereof |
| CN103864988B (en) * | 2014-03-11 | 2016-04-06 | 北京工业大学 | A kind of coloured polymer spends soil and preparation method thereof |
| CN104429863B (en) * | 2014-12-17 | 2017-05-31 | 湖南省核农学与航天育种研究所 | A kind of cultural method of orchid |
| CN106083309A (en) * | 2016-06-04 | 2016-11-09 | 山东胜伟园林科技有限公司 | A kind of alkaline land soil improving fertilizer and preparation method thereof |
| CN113022187B (en) * | 2021-02-25 | 2022-04-05 | 艺壹佳文化科技(广东)有限公司 | Printing process capable of realizing visual main body luminous propaganda and propaganda board manufactured by printing process |
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- 2004-11-26 CN CN 200410011268 patent/CN1262568C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1631925A (en) | 2005-06-29 |
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