CN102134493B - Permeability/retentivity enhancing material containing humic acid-carboxymethyl cellulose and preparation method thereof - Google Patents
Permeability/retentivity enhancing material containing humic acid-carboxymethyl cellulose and preparation method thereof Download PDFInfo
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- CN102134493B CN102134493B CN201110009902.8A CN201110009902A CN102134493B CN 102134493 B CN102134493 B CN 102134493B CN 201110009902 A CN201110009902 A CN 201110009902A CN 102134493 B CN102134493 B CN 102134493B
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Abstract
The invention discloses a permeability/retentivity enhancing material containing humic acid-carboxymethyl cellulose and a preparation method thereof. The preparation method comprises the following steps: proportionally weighing raw materials, sequentially mixing humic acid-acrylamide and carboxymethyl cellulose-crosslinking agent-initiator, and making an inert gas (nitrogen) environment in a reaction kettle to prepare for reaction; and sufficiently reacting the prepared mixture at constant temperature of 45-65 DEG C for 2-6 hours, taking out, washing, drying and granulating. The permeability/retentivity enhancing material containing humic acid-carboxymethyl cellulose not only can release retained moisture after sufficiently swelling, but also can provide ultra-water-absorptive resin which can provide organic substances required by soil; and the permeability/retentivity enhancing material containing humic acid-carboxymethyl cellulose can be used for plant moisture retention and drought control in agriculture, forestry and horticulture as well as preparation of antiseepage moisture retention membranes, satisfy the moisture demands for seedling emergence and early growth of crops, reduce the evaporation, improve the soil structure, increase the content of organic nutrient (humic acid) in soil by 0.3-1.3%, and enhance the moisture retentivity by 250-480 times as compared with the original soil.
Description
Technical field
The present invention discloses a kind of permeability/retentivity enhancing material containing humic acids-carboxymethyl cellulose, and prompting also provides this permeability/retentivity enhancing material to obtain preparation method, belongs to agricultural crops water conservation and Soil infiltration water conservation technical field.
Background technology
In modern agricultural technology field, the water-keeping material of farm crop is a lot, if: super water-absorbent resin is a kind ofly contain the strongly hydrophilic groups such as hydroxyl, carboxyl and have the water swelling type of certain degree of crosslinking and the functional high molecule material of tridimensional network, be that a class developed Novel absorbent material rapidly in recent years; Its water insoluble and organic solvent, swelling after water suction, forms hydrogel, has certain intensity and water-retentivity.Compare and there is larger advantage with traditional water-absorbing material.But be all super absorbent resin, because raw material and preparation method are different, its water absorbent rate is not by hundred times to thousand times etc.And single super absorbent resin also has the release And Spread of Solute after water suction and nutrient problem that farmland needs etc. cannot be provided at field application, therefore, has restricted its application in agriculture production reality.
Summary of the invention
The present invention discloses a kind of permeability/retentivity enhancing material containing humic acids-carboxymethyl cellulose, has solved super absorbent resin and in farmland, after swelling, has discharged the problem of moisture, can also provide organic nutrient for farmland.
The present invention also provides the preparation method containing the permeability/retentivity enhancing material of humic acids-carboxymethyl cellulose, is applicable to suitability for industrialized production.
the present invention discloses a kind of permeability/retentivity enhancing material containing humic acids-carboxymethyl cellulose,mainly by the raw material of following ratio of weight and number, made:
2 ~ 3 parts of humic acidss, 58 ~ 82 parts of acrylamides, 13 ~ 20 parts of carboxymethyl celluloses, 0.02 part of initiator potassium persulfate, 0.01 part of linking agent N,N methylene bis acrylamide.
In above-mentioned formula, also can add: 0.01 part of stablizer phosphorous acid ester, 1 part of membrane-forming agent acrylic resin polyurethane copolymerization resin.
the preparation method of permeability/retentivity enhancing material of the present invention, comprises the following steps:
Take according to the above ratio raw material, after adding and mix according to the order of humic acids-acrylamide and carboxymethyl cellulose-linking agent-initiator, and in reactor, manufacture rare gas element (nitrogen) environmental preparation and react; Ready mixture is placed under the constant temperature of 45-65 ℃ to fully reaction 2-6 hour, after taking-up, washing is dry, and granulation obtains holding finished material containing the expansion of humic acids-carboxymethyl cellulose.
The enforcement usage of product of the present invention comprises dry and wet way:
1) dry method is about to permeability/retentivity enhancing material particle of the present invention and seed is sowed simultaneously, earthing then, and trench digging is poured water, and now this material can start to bring into play Water storage.
2) wet method is about to permeability/retentivity enhancing material particle of the present invention and first with clear water, soaks and then pull out for 2-5 hour, sows the same period with seed.
positively effect of the present invention is:under alkaline condition, in containing the reaction system of humic acids, with Potassium Persulphate, carry out reacting of acrylamide triggered and carboxymethyl cellulose, make anatonosis expansion and hold starting material; Again through the super water-absorbent resin material washing, dry, shear granulation obtains being applicable to farmland.Product of the present invention can, fully discharging the moisture of saving after swelling, can provide again the super water-absorbent resin of the needed organic matter of soil; Can be used for agricultural, the drought resisting of forestry horticulture plant water keeping, the preparation of Soil infiltration water-retaining film (needing to add membrane-forming agent), can also solve that crop emerges and the moisture needs of early growth simultaneously, reduce evaporation, improve Soil structure, increase soil organic nutrient humic acids content 0.3-1.3%, the implicit ability that improves moisture is 250-480 times of soil itself.
embodiment:
embodiment 1:
Humic acids 2kg, acrylamide 82kg, carboxymethyl cellulose 13kg, initiator potassium persulfate 0.02kg, linking agent N,N methylene bis acrylamide 0.01kg and stablizer phosphorous acid ester 0.01kg and membrane-forming agent acrylic resin urethane 1kg.After adding and mix according to the order of humic acids-acrylamide and carboxymethyl cellulose-linking agent-initiator-membrane-forming agent, and in reactor, manufacture rare gas element (nitrogen) environmental preparation and react.Ready mixture is placed under the constant temperature of 45-65 ℃ to fully reaction 2-6 hour, after taking-up, washing is dry, and granulation obtains holding finished material containing the expansion of humic acids-carboxymethyl cellulose.
Permeability/retentivity enhancing material in the present embodiment 1 is sowed effect again after need to earthing up better.
embodiment 2:
Humic acids 3kg, acrylamide 60kg, carboxymethyl cellulose 16kg, initiator potassium persulfate 0.02kg, linking agent N,N methylene bis acrylamide 0.01kg and stablizer stablizer phosphorous acid ester 0.01kg and membrane-forming agent acrylic resin urethane 1kg.Above-mentioned materials is added after mixing according to the order of humic acids-acrylamide and carboxymethyl cellulose-linking agent-initiator-membrane-forming agent, in reactor, manufacture rare gas element (nitrogen) environmental preparation reaction.Ready mixture is placed under the constant temperature of 45-65 degree to fully reaction 2-6h, after taking-up, washing is dry, and granulation obtains holding finished material containing the expansion of humic acids-carboxymethyl cellulose.
The enforcement usage of this material is identical with embodiment 1.
embodiment 3:
Humic acids 2kg, acrylamide 63kg, carboxymethyl cellulose 19kg, initiator potassium persulfate 0.02kg, linking agent N,N methylene bis acrylamide 0.01kg and stablizer phosphorous acid ester 0.01kg and membrane-forming agent acrylic resin urethane 1kg.Above-mentioned materials is added after mixing according to the order of humic acids-acrylamide and carboxymethyl cellulose-linking agent-initiator-membrane-forming agent, in reactor, manufacture rare gas element (nitrogen) environmental preparation reaction.Ready mixture is placed under the constant temperature of 45-65 degree to fully reaction 2-6h, after taking-up, washing is dry, and granulation obtains holding finished material containing the expansion of humic acids-carboxymethyl cellulose.
The enforcement usage of this material is identical with embodiment 1.
embodiment 4:
Humic acids 2kg, acrylamide 82kg, carboxymethyl cellulose 14kg, initiator potassium persulfate 0.02kg, linking agent N,N methylene bis acrylamide 0.01kg and stablizer phosphorous acid ester 0.01kg and membrane-forming agent acrylic resin urethane 1kg.Above-mentioned materials is added after mixing according to the order of humic acids-acrylamide and carboxymethyl cellulose-linking agent-initiator-membrane-forming agent, in reactor, manufacture rare gas element (nitrogen) environmental preparation reaction.Ready mixture is placed under the constant temperature of 40 degree to fully reaction 4-6h, after taking-up, washing is dry, and granulation obtains holding finished material containing the expansion of humic acids-carboxymethyl cellulose.
The enforcement usage of this material is identical with embodiment 1.
embodiment 5:
Humic acids 2kg, acrylamide 58kg, carboxymethyl cellulose 16kg, initiator potassium persulfate 0.02kg, linking agent N,N methylene bis acrylamide 0.01kg and stablizer phosphorous acid ester 0.01kg and membrane-forming agent acrylic resin urethane 1kg.Above-mentioned materials is added after mixing according to the order of humic acids-acrylamide and carboxymethyl cellulose-linking agent-initiator-membrane-forming agent, in reactor, manufacture rare gas element (nitrogen) environmental preparation reaction.Ready mixture is placed under the constant temperature of 40 degree to fully reaction 4-6h, after taking-up, washing is dry, and granulation obtains holding finished material containing the expansion of humic acids-carboxymethyl cellulose.
The enforcement usage of this material is identical with embodiment 1.
embodiment 6:
Humic acids 3kg, acrylamide 61kg, carboxymethyl cellulose 20kg, initiator potassium persulfate 0.02kg, linking agent N,N methylene bis acrylamide 0.01kg and stablizer phosphorous acid ester 0.01kg and membrane-forming agent acrylic resin urethane 1kg.Above-mentioned materials is added after mixing according to the order of humic acids-acrylamide and carboxymethyl cellulose-linking agent-initiator-membrane-forming agent, in reactor, manufacture rare gas element (nitrogen) environmental preparation reaction.Ready mixture is placed under the constant temperature of 40 degree to fully reaction 4-6h, after taking-up, washing is dry, and granulation obtains holding finished material containing the expansion of humic acids-carboxymethyl cellulose.
The enforcement usage of this material is identical with embodiment 1.
embodiment 7:
Humic acids 2kg, acrylamide 82kg, carboxymethyl cellulose 13kg, initiator potassium persulfate 0.02kg, linking agent N,N methylene bis acrylamide 0.01kg and stablizer phosphorous acid ester 0.01kg and membrane-forming agent acrylic resin urethane 1kg.Above-mentioned materials is added after mixing to ready reaction in reactor according to the order of humic acids-acrylamide and carboxymethyl cellulose-linking agent-initiator-membrane-forming agent.Ready mixture is placed under the constant temperature of 45-65 degree to fully reaction 2-6h, after taking-up, washing is dry, and granulation obtains holding finished material containing the expansion of humic acids-carboxymethyl cellulose.
The enforcement usage of this material is identical with embodiment 1.
test examplewater absorbent rate controlled trial
Condition: normal temperature (20 ℃) normal pressures (101kPa)
Object: check the synthetic expansion of this example 1-7 to hold the true retaining performance of material with respect to the lifting situation of commercialization water-absorbing material (Beijing gold is unit's " non-irrigated dotey " agricultural anti-drought water-retaining agent easily) and blank (silty loam).
Reagent: material is held in distilled water, " non-irrigated dotey " agricultural anti-drought water-retaining agent, the synthetic expansion obtaining of the present embodiment 1-7.
Contrast: the dust storm farmland soil of taking from Qian Guo--Ji Lin autonomous county of the Er Luosi Mongols ten thousand Baoshan Village.
Unit: control group, commercially available reagent group and experimental group are all calculated with every gram of energy water regain (g/g); Water absorbing properties promotes with percentage calculation.
| Processing/water absorbent rate | Control group (silty loam) (g/g) | Commercially available reagent group (g/g) | Experiment reagent group (g/g) | Performance boost (%) |
| Embodiment 1 | 2 | 420 | 737 | 75.5 |
| Embodiment 2 | 2 | 436 | 782 | 79.4 |
| Embodiment 3 | 2 | 418 | 857 | 105 |
| Embodiment 4 | 2 | 461 | 813 | 76.4 |
| Embodiment 5 | 2 | 476 | 942 | 97.9 |
| Embodiment 6 | 2 | 417 | 805 | 93 |
| Embodiment 7 | 2 | 431 | 779 | 80.7 |
Claims (2)
1. containing a permeability/retentivity enhancing material for humic acids-carboxymethyl cellulose, be mainly to be made by the raw material of following ratio of weight and number:
2 ~ 3 parts of humic acidss, 58 ~ 82 parts of acrylamides, 13 ~ 20 parts of carboxymethyl celluloses, 0.02 part of initiator potassium persulfate, 0.01 part of linking agent N,N methylene bis acrylamide.
2. the preparation method of permeability/retentivity enhancing material described in claim 1, comprises the following steps:
Take according to the above ratio raw material, according to the order of humic acids-acrylamide and carboxymethyl cellulose-linking agent-initiator, add after mixing, in reactor, manufacture inert gas environment and react; Ready mixture is placed under the constant temperature of 45-65 ℃ to fully reaction 2-6 hour, after taking-up, washing is dry, granulation and get final product.
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| CN201110009902.8A CN102134493B (en) | 2011-01-18 | 2011-01-18 | Permeability/retentivity enhancing material containing humic acid-carboxymethyl cellulose and preparation method thereof |
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| CN201110009902.8A CN102134493B (en) | 2011-01-18 | 2011-01-18 | Permeability/retentivity enhancing material containing humic acid-carboxymethyl cellulose and preparation method thereof |
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| CN105601821A (en) * | 2016-02-05 | 2016-05-25 | 吉林大学 | Macromolecular composite anatonosis storage-increment material and preparation method thereof |
| CN110964532A (en) * | 2018-09-26 | 2020-04-07 | 广东清大同科环保技术有限公司 | Humic acid modified fly ash granular soil and preparation method thereof |
| CN109806847B (en) * | 2019-03-27 | 2022-05-06 | 陕西科技大学 | Humic acid type porous adsorption material and preparation method and application thereof |
| CN113265031B (en) * | 2021-05-28 | 2022-07-12 | 陕西科技大学 | Humic acid type insect-proof pheromone water-absorbent resin and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101081881A (en) * | 2007-06-04 | 2007-12-05 | 武汉理工大学 | Method for synthesizing nano dispersible CMC-acrylic acid macromolecule absorbent resin |
| CN101215208A (en) * | 2008-01-18 | 2008-07-09 | 师进 | High activity biological nutrition water-loss reducer and preparation method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101081881A (en) * | 2007-06-04 | 2007-12-05 | 武汉理工大学 | Method for synthesizing nano dispersible CMC-acrylic acid macromolecule absorbent resin |
| CN101215208A (en) * | 2008-01-18 | 2008-07-09 | 师进 | High activity biological nutrition water-loss reducer and preparation method thereof |
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