CN1020617C - Synthtic method for high water absorption material - Google Patents
Synthtic method for high water absorption material Download PDFInfo
- Publication number
- CN1020617C CN1020617C CN 89101086 CN89101086A CN1020617C CN 1020617 C CN1020617 C CN 1020617C CN 89101086 CN89101086 CN 89101086 CN 89101086 A CN89101086 A CN 89101086A CN 1020617 C CN1020617 C CN 1020617C
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- China
- Prior art keywords
- absorbent material
- high water
- gram
- absorbing material
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The present invention relates to a method for synthesizing high water absorbing material which belongs to the field of polymer material synthesis. At present, petrochemical products and natural polymers are used as raw materials for synthesizing high water absorbing material through a chemical method or an irradiation method. The present invention develops a method for synthesizing high water absorbing material with controllable water absorption times by using bentonite and acrylic amide as raw materials through a redox initiating system or a peroxide initiating system. The high water absorbing material synthesized by the method can be widely used in the fields of petroleum, chemical engineering, agriculture, gardening, environment protection, etc.
Description
The invention belongs to high-absorbent material synthetic field.
High-absorbent material is nearly ten years a kind of type materials that grow up, and it has, and water-retaining capacity is strong, good water-retaining property, intensity height, and advantages such as after-applied certain pressure does not dewater absorb water.It has remarkable economic efficiency and social benefit aspect industry, agricultural, Water in Water Shutoff in Oil Field, afforestation, soil improvement, environment protection and the daily life important application being arranged all.
At present, all be with petrochemicals and natural polymer raw material, adopt chemical method or radiation method synthesizing super absorbent material.The main development trend of synthesizing super absorbent material is to reduce the research of product cost now, and improves the receptivity research to the salt tolerant ionized water.Many scientists have carried out tackling key problem research round this two hang-up, still, up to the present do not see the report that makes a breakthrough as yet.
The present invention is to be purpose to reduce product cost, and having explored a kind of inorganics wilkinite and acrylamide is raw material, adopts the method for the controlled high-absorbent material of the synthetic suction of redox initiation system or oxidation initiator system multiple.The material that this method is used is cheap wilkinite, per kilogram five to six minutes, and aboundresources.Simultaneously, this method synthesis technique is easy, does not use expensive catalysts and organic solvent, and three to five yuan of product cost per kilograms have reduced 40%-60% than currently available products cost.In addition, it is controlled that the synthetic high-absorbent material has the suction multiple in this way, do not produce characteristics such as the three wastes.The present invention and application number are that the method that 85102156 patent radiation prepares super composite absorbent material is compared, advantage such as have technology novelty, less investment, the cycle is short, benefit is big.
To the effect that of the present invention, wilkinite is made into the aqueous solution that concentration is 10-50%, to mix with 30% acrylamide solution then, the weight ratio of wilkinite and acrylamide is 20: 80-80: between 20.In mixed aqueous solution, add 0.1-4 gram NaOH, the NN-methylene-bis allylamine of 0.006-0.015 the gram, (NH of 0.01-1 gram
4)
2S
2O
8, the Na of 0.7-1.5 gram
2SO
35H
2O.At ambient temperature, carry out redox initiate polymerization after 20 minutes, placed in the thermostat container (50-75 ℃) one to four hour, obtain obtaining the high-absorbent material product through granulation, oven dry, pulverizing again after the gelatinous polymer.Can change the ratio of synthetics according to the different needs of oil field, agricultural, chemical industry, gardening, environmental protection, aspect such as daily, the different high-absorbent material of multiple obtains absorbing water, the suction multiple can be controlled in several grams/gram, tens gram/grams, several hectograms/gram, last kilogram/gram.
The suction multiple is calculated as follows:
Suction multiple=(weight before suction back weight-suction)/(weight before the suction)
Be a preferred example of the present invention below:
Compound concentration is 30% bentonite solution, placed 10 hours, and made it form the pasty state homogeneous system, take out 30 grams and 30 gram concentration and be 30% acrylamide soln and stir, add 0.25 ml concn and be 3% NN-the methylene-bisacrylamide, (NH of 0.4 gram
4)
2S
2O
8, the Na of 0.94 gram
2SO
35H
2O, 4.5 the 15NNaOH of milliliter, fully stir and form the pasty state homogeneous system, be placed on and carry out polyreaction under the room temperature condition after 20 minutes, place 50 ℃ of thermostat containers to continue reaction again, obtain gelatinous polymer, get a certain amount of high-absorbent material product and do the water-retaining capacity measurement, the suction multiple is 914 gram/grams.
Claims (5)
1, high-absorbent material synthetic method is characterized in that said high-absorbent material, be by bentonite solution with after acrylamide solution mixes, add NaOH, NN-methylene-bisacrylamide, (NH
4)
2S
2O
8And Na
2SO
35H
2After this O stirs fully at ambient temperature that polyreaction placed thermostat container (50-75 ℃) one to four hour after 20 minutes, obtains gelatinous polymer, again with polymkeric substance granulation, oven dry, pulverizing.
2, as the said high-absorbent material synthetic of claim 1 method, the concentration that it is characterized in that bentonite solution is 10-50%.
3,, it is characterized in that acrylamide solution concentration is 30% as the said high-absorbent material synthetic of claim 1 method.
4, as the said high-absorbent material synthetic of claim 1 method, the weight ratio that it is characterized in that wilkinite and acrylamide is 20: 80-80: between 20.
5, as the said high-absorbent material synthetic of claim 1 method, the weight that it is characterized in that NaOH is the 0.1-4 gram, adds (NH
4)
2S
2O
8Weight 0.01-1 gram, NN-methylene-bisacrylamide weight is the 0.006-0.015 gram, Na
2SO
35H
2The weight 0.7-1.5 gram of O
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89101086 CN1020617C (en) | 1989-03-01 | 1989-03-01 | Synthtic method for high water absorption material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89101086 CN1020617C (en) | 1989-03-01 | 1989-03-01 | Synthtic method for high water absorption material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1041601A CN1041601A (en) | 1990-04-25 |
| CN1020617C true CN1020617C (en) | 1993-05-12 |
Family
ID=4854137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89101086 Expired - Fee Related CN1020617C (en) | 1989-03-01 | 1989-03-01 | Synthtic method for high water absorption material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1020617C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1122052C (en) * | 1999-12-16 | 2003-09-24 | 中国科学院长春应用化学研究所 | Synthesis of high-hydroscopicity resin |
| CN1122051C (en) * | 1999-12-16 | 2003-09-24 | 中国科学院长春应用化学研究所 | Synthesis of high-hydroscopicity resin polymerized at room temperature |
| CN100335513C (en) * | 2003-08-26 | 2007-09-05 | 西北师范大学 | Preparation of bentonite intercalation hybrid water absorption material by using microwave radiation |
| CN101195664B (en) * | 2006-12-06 | 2012-01-04 | 新疆大学 | Method for producing organic/inorganic mixed mode semi-interpenetrating network configuration superpower water absorber |
| CN105214444A (en) * | 2015-11-13 | 2016-01-06 | 无锡清杨机械制造有限公司 | A kind of pressure swing adsorption method reclaims the method for toluene in tail gas |
| CN108578944B (en) * | 2018-03-13 | 2020-09-29 | 杭州电子科技大学 | Fire-fighting gun using super absorbent resin as ammunition and fire extinguishing method thereof |
-
1989
- 1989-03-01 CN CN 89101086 patent/CN1020617C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1041601A (en) | 1990-04-25 |
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