CN1521196A - Bentonite hybridization absorption material and its preparing process - Google Patents
Bentonite hybridization absorption material and its preparing process Download PDFInfo
- Publication number
- CN1521196A CN1521196A CNA031144861A CN03114486A CN1521196A CN 1521196 A CN1521196 A CN 1521196A CN A031144861 A CNA031144861 A CN A031144861A CN 03114486 A CN03114486 A CN 03114486A CN 1521196 A CN1521196 A CN 1521196A
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- acrylamide
- bentonite
- wilkinite
- absorbing material
- water
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- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Cultivation Of Plants (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The present invention relates to one kind of hybrid of water absorbing material of polyacrylate/acrylamide/bentonite prepared through intercalating copolymerization and its preparation process. The material has distilled water absorbing rate of 200-300 g/g, cost 30-40 % lower than available water keeping agent, and thus wide application foreground in developing dry farming agriculture, planting tree, sand fixing weed plantation and protect ecological environment.
Description
Technical field
The present invention relates to a kind of characteristic of utilizing wilkinite intercalation copolymerization polyacrylate/acrylamide/wilkinite (PAA/AM/MMT) hydridization water-absorbing material and preparation method thereof.
Background technology
High absorbency material is a kind of novel functional high molecule material.Its water-retaining capacity is strong, and water retention property is good, not dehydration of pressurized.From 1974 by USDA since northern research centre is developed high absorbency material first and achieved success, the application of high absorbency material is developed rapidly, its range of application relates to aspects such as hygiene care, agriculture and garden, oil production, cable and civil construction, and the rheological characteristics of wherein water thickening, adjusting water dispersion is one of its important use field.At present, the 80-85% of China's high-absorbent material ultimate production consumes aspect sanitary product, and being applied in agricultural, to herd the ratio of aspect very little, and tracing it to its cause mainly is high absorbency material cost height, is restricting applying of it.
Have approximately in northern China dry agricuture area and to plough 800,000,000 mu, wherein 65% is the nonirrigated farmland, and prolonged drought lack of water short of rain directly influences the surviving rate of the development and the planting trees and grass of agriculture production.Therefore exploitation has the high-absorbent material that cost is low, water-retaining capacity is strong, for developing dry farming, improve the ecological environment and preventing and treating the arable land desertification, actively implements strategy to develop western regions and all is of great significance.
Goal of the invention
The objective of the invention is to utilize wilkinite intercalation copolymerization polyacrylate/acrylamide/bentonite hybrid water-absorbing material, its cost is than existing water-holding agent decline 30-40%, make it farming, woods, the aspect such as herd and be widely used.
Purpose of the present invention can realize by following measure
The bentonite hybrid water-absorbing material, contain (weight percent):
Wilkinite 10-30% vinylformic acid 27-35% (degree of neutralization is 70-90%)
Acrylamide 40-53% initiator 0.5-2.5% linking agent 0.05-0.15%; Utilize wilkinite intercalation copolymerization polyacrylate/acrylamide/bentonite hybrid water-absorbing material.
Purpose of the present invention can also realize by following concrete measure: the preparation method of bentonite hybrid water-absorbing material uses among the NaOH earlier and vinylformic acid, the adding acrylamide fully stirs and makes its dissolving, and then the wilkinite after adding linking agent and the desanding, under fully stirring, add initiator, 65-85 ℃ of following polymerization, dry then, pulverize.
The present invention has the following advantages:
1, the present invention utilizes bentonitic laminate structure, make and embed material (can be inorganic molecules, organic molecule and organic macromolecule usually) to enter the prepared wilkinite intercalation hydridization water-absorbing material of the characteristic of interlayer copolymerization with low cost, and the consistency of wilkinite and soil is good, raw material resources are abundant, come source range wide.
2, the prepared polyacrylate/acrylamide/bentonite hybrid water-absorbing material of the present invention has water-retaining capacity preferably, moisture form and the polymer scale with hydrogen bond in the hybrid material internal network structure that absorbs lumps together, form hydrogel, this bonding force of external force between almost can't the saboteur, therefore losing seldom of moisture under external force has good water retaining function.
3, through a large amount of verification experimental verifications, this material can quicken the germinating growth speed of wheat, the survival rate of seedlings height, and show good drought-resistant ability, improve crop yield; Plant trees and to fix the sand in kind of the grass effect also very remarkable at kind of a grass.
Description of drawings
Fig. 1 is a schema of the present invention
Concrete embodiment
In conjunction with the accompanying drawings, below the present invention is described in further detail again:
Embodiment 1, make degree of neutralization reach 70% vinylformic acid 6mol to filling cooling bath and having to add in the flask of whipping appts with the NaOH neutralization, add the acrylamide of 4mol then and fully stir and make its dissolving, add 0.05% linking agent and 30% wilkinite again, the initiator of last adding 1.5% under fully stirring, progressively be warmed up to 80 ℃ of initiated polymerizations, after the drying and crushing gained material is carried out water absorption test and uses infrared, X-ray diffraction methods such as (model are D/MAX-IIIC) characterizes prepared material, further determines the hybrid structure of material.
Embodiment 2: make degree of neutralization reach 80% vinylformic acid 3mol to filling cooling bath and having to add in the flask of whipping appts with the NaOH neutralization, add the acrylamide of 7mol then and fully stir and make its dissolving, add 0.05% linking agent and 25% wilkinite again, the initiator of last adding 2.5% under fully stirring, progressively be warmed up to 85 ℃ of initiated polymerizations, after the drying and crushing gained material is carried out water absorption test and uses infrared, X-ray diffraction methods such as (model are D/MAX-IIIC) characterizes prepared material, further determines the hybrid structure of material.
Claims (2)
1, bentonite hybrid water-absorbing material, contain (weight percent):
Wilkinite 10-30% vinylformic acid 27-35% (degree of neutralization is 70-90%)
Acrylamide 40-53% initiator 0.5-2.5% linking agent 0.05-0.15% utilizes wilkinite intercalation copolymerization polyacrylate/acrylamide/bentonite hybrid water-absorbing material.
2, the preparation method of bentonite hybrid water-absorbing material is: use among the NaOH earlier and vinylformic acid, add also abundant stirring of acrylamide it is dissolved, and then add the wilkinite after linking agent and the desanding, fully stir and add initiator down, 65-85 ℃ of following polymerization, dry then, pulverize.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03114486 CN1222553C (en) | 2003-01-27 | 2003-01-27 | Bentonite hybridization absorption material and its preparing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03114486 CN1222553C (en) | 2003-01-27 | 2003-01-27 | Bentonite hybridization absorption material and its preparing process |
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| Publication Number | Publication Date |
|---|---|
| CN1521196A true CN1521196A (en) | 2004-08-18 |
| CN1222553C CN1222553C (en) | 2005-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03114486 Expired - Fee Related CN1222553C (en) | 2003-01-27 | 2003-01-27 | Bentonite hybridization absorption material and its preparing process |
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| CN (1) | CN1222553C (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100355990C (en) * | 2005-06-24 | 2007-12-19 | 长安大学 | Water-retaining sand-stabilizing material for desert treatment and its preparing process |
| CN100436496C (en) * | 2006-04-30 | 2008-11-26 | 王树禹 | Superstrong water absorber and its preparation method and selenium-enriched plant antidraught agent using same as raw material |
| CN100443554C (en) * | 2006-03-23 | 2008-12-17 | 中国地质大学（武汉） | Method for preparing high water absorption and water retention composite materials containing framework silicate mineral |
| CN100443553C (en) * | 2006-03-23 | 2008-12-17 | 中国地质大学（武汉） | Method for preparing high water absorption and water retention composite materials containing amorphous silicate mineral |
| CN101215207B (en) * | 2008-01-18 | 2010-06-09 | 师进 | Biochemistry fulvic acid water-loss reducer and preparation method thereof |
| 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 |
| CN102432969A (en) * | 2011-08-29 | 2012-05-02 | 天津大学 | Variable-color and high-effective composite humidity controlling agent and its preparation method |
| CN102580694A (en) * | 2012-01-13 | 2012-07-18 | 西北师范大学 | Method for preparing modified loess with high adsorption performance |
| CN103897704A (en) * | 2014-04-16 | 2014-07-02 | 郑州帝益生态农业科技工程有限责任公司 | Water-retention soil-loosening soil conditioning agent and preparation method |
| CN109053320A (en) * | 2018-07-24 | 2018-12-21 | 信阳市上天梯非金属矿管理区非金属矿技术开发应用研究所 | The bentonite of Sodium Polyacrylate intercalation modification assigns fertile water-retaining agent and preparation method thereof |
| CN114032723A (en) * | 2021-11-26 | 2022-02-11 | 山东大学 | Method for regulating and controlling water content and compact state of roadbed based on weather-resistant hydrogel in operation period |
| CN114503896A (en) * | 2021-12-29 | 2022-05-17 | 中节能大地环境修复有限公司 | Water-retaining carrier for root system of arbor and preparation method and application thereof |
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| CN102167769B (en) * | 2011-02-16 | 2013-02-06 | 中国矿业大学(北京) | Super absorbent water-retaining agent and preparation method thereof |
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2003
- 2003-01-27 CN CN 03114486 patent/CN1222553C/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100355990C (en) * | 2005-06-24 | 2007-12-19 | 长安大学 | Water-retaining sand-stabilizing material for desert treatment and its preparing process |
| CN100443554C (en) * | 2006-03-23 | 2008-12-17 | 中国地质大学（武汉） | Method for preparing high water absorption and water retention composite materials containing framework silicate mineral |
| CN100443553C (en) * | 2006-03-23 | 2008-12-17 | 中国地质大学（武汉） | Method for preparing high water absorption and water retention composite materials containing amorphous silicate mineral |
| CN100436496C (en) * | 2006-04-30 | 2008-11-26 | 王树禹 | Superstrong water absorber and its preparation method and selenium-enriched plant antidraught agent using same as raw material |
| 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 |
| CN101215207B (en) * | 2008-01-18 | 2010-06-09 | 师进 | Biochemistry fulvic acid water-loss reducer and preparation method thereof |
| CN102432969A (en) * | 2011-08-29 | 2012-05-02 | 天津大学 | Variable-color and high-effective composite humidity controlling agent and its preparation method |
| CN102580694A (en) * | 2012-01-13 | 2012-07-18 | 西北师范大学 | Method for preparing modified loess with high adsorption performance |
| CN102580694B (en) * | 2012-01-13 | 2014-04-09 | 西北师范大学 | Method for preparing modified loess with high adsorption performance |
| CN103897704A (en) * | 2014-04-16 | 2014-07-02 | 郑州帝益生态农业科技工程有限责任公司 | Water-retention soil-loosening soil conditioning agent and preparation method |
| CN103897704B (en) * | 2014-04-16 | 2015-05-20 | 郑州帝益肥业生态保护工程股份有限公司 | Water-retention soil-loosening soil conditioning agent and preparation method |
| CN109053320A (en) * | 2018-07-24 | 2018-12-21 | 信阳市上天梯非金属矿管理区非金属矿技术开发应用研究所 | The bentonite of Sodium Polyacrylate intercalation modification assigns fertile water-retaining agent and preparation method thereof |
| CN114032723A (en) * | 2021-11-26 | 2022-02-11 | 山东大学 | Method for regulating and controlling water content and compact state of roadbed based on weather-resistant hydrogel in operation period |
| WO2023093468A1 (en) * | 2021-11-26 | 2023-06-01 | 山东交通学院 | Water content and dense state regulation and control method based on weather-resistant hydrogel roadbed operation period |
| CN114503896A (en) * | 2021-12-29 | 2022-05-17 | 中节能大地环境修复有限公司 | Water-retaining carrier for root system of arbor and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1222553C (en) | 2005-10-12 |
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