CN107033300A - A kind of agricultural water-loss reducer and preparation method with highly effective water-keeping performance - Google Patents
A kind of agricultural water-loss reducer and preparation method with highly effective water-keeping performance Download PDFInfo
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- CN107033300A CN107033300A CN201611023199.5A CN201611023199A CN107033300A CN 107033300 A CN107033300 A CN 107033300A CN 201611023199 A CN201611023199 A CN 201611023199A CN 107033300 A CN107033300 A CN 107033300A
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- water
- loss reducer
- highly effective
- keeping performance
- sodium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F251/00—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F261/00—Macromolecular compounds obtained by polymerising monomers on to polymers of oxygen-containing monomers as defined in group C08F16/00
- C08F261/02—Macromolecular compounds obtained by polymerising monomers on to polymers of oxygen-containing monomers as defined in group C08F16/00 on to polymers of unsaturated alcohols
- C08F261/04—Macromolecular compounds obtained by polymerising monomers on to polymers of oxygen-containing monomers as defined in group C08F16/00 on to polymers of unsaturated alcohols on to polymers of vinyl alcohol
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/14—Soil-conditioning materials or soil-stabilising materials containing organic compounds only
- C09K17/18—Prepolymers; Macromolecular compounds
- C09K17/32—Prepolymers; Macromolecular compounds of natural origin, e.g. cellulosic materials
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2101/00—Agricultural use
Abstract
The present invention provides a kind of agricultural water-loss reducer and preparation method with highly effective water-keeping performance, by weight percentage including following components：Modified starch 15 35%；Acrylic acid 30 50%；Polyvinyl acetate 5 17%；Sodium hydroxide 15 40%；Sodium dodecyl sulfate solution 3 9%；Ammonium persulfate 0.1 0.35%；Sodium thiosulfate 0.1 0.8%；Ethylene glycol 0.2 0.65%, so obtained water-loss reducer has good salt tolerance and crushing resistance, and validity period is more than 3 years, and contain C, O, H, N, a variety of elements highly beneficial to plant growth and water and soil conservation such as K and the chemical bond and group that are made up of these elements, with farm manure, chemical fertilizer, the mixing property of soil and fine sand etc. is good, with high water absorption, water-retaining property and release aqueous, the product is to people, animals and plants nonhazardous, and the specific function group in its network molecular structure is to pb, cd, the toxic metal ions such as hg have very strong complexing chelation, so as to purify soil environment water source.
Description
[technical field]
Discharge water reversible, biodegradable and have preferable the present invention relates to water-loss reducer technical field, more particularly to a kind of inhale
Salt tolerance and resistance to acids and bases agricultural water-loss reducer with highly effective water-keeping performance and preparation method.
[background technology]
With the reduction year by year of the increasingly serious and green vegetation of environmental pollution, sternness is proposed to environment for human survival
Test, the particularly field such as agricultural production and urban afforestation, its soil moisture is easy to run off, and causes soil block, soil
The problems such as desertification, the raising of yield and the maintenance of urban vegetation are drastically influence, larger economic loss is also brought.
Therefore how rainwater or watering pours water to be absorbed and kept rapidly in soil, it is not permeable to lose, and then ensure rhizosphere scope
Moisture content is sufficient, slow release is utilized for plant turns into important research direction, and based on this, those skilled in the art has been carried out greatly
Research and development and experiment of amount, and achieve preferable achievement, especially for different cities, the different demands of different soils environment,
Develop coverage rate, practical wide, the agricultural water-loss reducer that effect is protruded.
[content of the invention]
To overcome the problems of prior art, the present invention provides a kind of inhale and discharges water reversible, biodegradable and have
The preferably agricultural water-loss reducer with highly effective water-keeping performance and preparation method of salt tolerance and resistance to acids and bases.
The scheme that the present invention solves technical problem is to provide a kind of agricultural water-loss reducer with highly effective water-keeping performance, by weight
Percentage includes following components：
Preferably, the solution concentration of the sodium dodecyl sulfate solution is 5%.
Preferably, the solution concentration of the sodium hydroxide is 30%.
Preferably, by weight percentage including following components：
Modified starch 20%；
Acrylic acid 40%；
Polyvinyl acetate 8%；
Sodium hydroxide 25%；
Sodium dodecyl sulfate solution 6%；
Ammonium persulfate 0.25%；
Sodium thiosulfate 0.3%；
Ethylene glycol 0.45%.
A kind of preparation method with highly effective water-keeping performance agricultural water-loss reducer, is comprised the following steps that,
S1, modified starch and polyvinyl acetate be separately added into reaction vessel, and poured into reaction vessel a certain amount of
Water and ethylene glycol, controlling reaction temperature be 80-100 degree, be made polyvinyl alcohol；
S2, a certain amount of acrylic acid poured into another reaction vessel, and toward adding a certain amount of hydrogen in the reaction vessel
Sodium hydroxide solution carries out neutralization reaction, and room temperature is cooled to after the completion of reaction；
S3, a certain amount of modified starch added and be gelatinized in another reaction vessel, and be cooled to room temperature；
S4, the solution after the completion of neutralization reaction in step S2 is added carried out in the reaction vessel after step S3 gelatinization terminates
Stirring, sequentially adds sodium dodecyl sulfate solution, ammonium persulfate and sodium thiosulfate after the completion of stirring, carry out secondary agitation,
And temperature is improved constantly in whipping process；
S5, by the mixture obtained after obtained polyvinyl alcohol in step S1 and step S4 secondary agitations with one to one matter
Amount is incubated 2-3 hours than mixing；
After the completion of S6, insulation, mixture is put into comminutor and granulated；
S7, processing is dried to the mixture after the completion of granulation, final products are made.
Preferably, in the step S1, reaction temperature control is 90 degree.
Preferably, in the step S2, the concentration of sodium hydroxide solution is 30%；And the degree of neutralization of control 90%.
Preferably, the duration of secondary agitation is no less than 30 minutes in the step S4, and during secondary agitation, temperature
It is final to improve and be held in 70 degree.
Preferably, in the step S6, the operating temperature control of comminutor is 70 degree, and the spray second two in granulation process
Alcohol.
Preferably, the drying process of mixture is carried out in carriage-type drying machine in the step S7, and be gradually heating to
80 degree, 105 degree are warming up to after drying 2-4 hours again and is kept for 9-11 hours.
Compared with prior art, a kind of agricultural water-loss reducer with highly effective water-keeping performance of the present invention is formed sediment by big molecular modification
Powder, acrylic acid, polyvinyl acetate, glycerine, ammonium persulfate, sodium thiosulfate, sodium hydroxide, and lauryl sodium sulfate and
The graft copolymerization of moisture stage is formed.So obtained water-loss reducer has good salt tolerance and crushing resistance, and validity period was in 3 years
More than, and constituted containing a variety of elements highly beneficial to plant growth and water and soil conservation such as C, O, H, N, K and by these elements
Chemical bond and group, the mixing property with farm manure, chemical fertilizer, soil and fine sand etc. is good, with high water absorption, water-retaining property and releases water
Property, the product is to people, animals and plants nonhazardous, and specific function group in its network molecular structure is to the poisonous gold such as pb, cd, hg
Category ion has very strong complexing chelation, so as to purify soil environment water source.
[brief description of the drawings]
Fig. 1 and Fig. 2 are a kind of flow signals of preparation method of the agricultural water-loss reducer with highly effective water-keeping performance of the present invention
Figure.
[embodiment]
To make the purpose of the present invention, technical scheme and advantage are more clearly understood, below in conjunction with drawings and Examples, to this
Invention is further elaborated.It should be appreciated that specific embodiment described herein is used only for explaining the present invention, not
For limiting this invention.
Fig. 1 and Fig. 2 are referred to, a kind of agricultural water-loss reducer with highly effective water-keeping performance of the present invention is wrapped by weight percentage
Include following components：
Agricultural water-loss reducer of the present invention be by big molecular modification starch, acrylic acid, polyvinyl acetate, glycerine, ammonium persulfate,
Sodium thiosulfate, sodium hydroxide, and lauryl sodium sulfate and the graft copolymerization of moisture stage are formed.So obtained water-loss reducer
With good salt tolerance and crushing resistance, and validity period is more than 3 years, and containing C, O, H, N, K etc. it is a variety of to plant growth and
The highly beneficial element of water and soil conservation and the chemical bond and group being made up of these elements, with farm manure, chemical fertilizer, soil and fine sand
Deng mixing property it is good, with high water absorption, water-retaining property and release aqueous, the product is to people, animals and plants nonhazardous, and its network molecule knot
Specific function group in structure has very strong complexing chelation to toxic metal ions such as pb, cd, hg, so as to purify soil
Environmental water systemses.
The modified starch can be chlorofluorination starch or acetate starch, preferably chlorofluorination starch.
Preferably, the solution concentration of the sodium dodecyl sulfate solution is 5%.
Preferably, the solution concentration of the sodium hydroxide is 30%.
Preferably, by weight percentage including following components：
Modified starch 20%；
Acrylic acid 40%；
Polyvinyl acetate 8%；
Sodium hydroxide 25%；
Sodium dodecyl sulfate solution 6%；
Ammonium persulfate 0.25%；
Sodium thiosulfate 0.3%；
Ethylene glycol 0.45%.
A kind of preparation method with highly effective water-keeping performance agricultural water-loss reducer, is comprised the following steps that,
S1, modified starch and polyvinyl acetate be separately added into reaction vessel, and poured into reaction vessel a certain amount of
Water and ethylene glycol, controlling reaction temperature be 80-100 degree, be made polyvinyl alcohol；
S2, a certain amount of acrylic acid poured into another reaction vessel, and toward adding a certain amount of hydrogen in the reaction vessel
Sodium hydroxide solution carries out neutralization reaction, and room temperature is cooled to after the completion of reaction；
S3, a certain amount of modified starch added and be gelatinized in another reaction vessel, and be cooled to room temperature；
S4, the solution after the completion of neutralization reaction in step S2 is added carried out in the reaction vessel after step S3 gelatinization terminates
Stirring, sequentially adds sodium dodecyl sulfate solution, ammonium persulfate and sodium thiosulfate after the completion of stirring, carry out secondary agitation,
And temperature is improved constantly in whipping process；
S5, by the mixture obtained after obtained polyvinyl alcohol in step S1 and step S4 secondary agitations with one to one matter
Amount is incubated 2-3 hours than mixing；The mixing is carried out in polymerization case；
After the completion of S6, insulation, mixture is put into comminutor and granulated；
S7, processing is dried to the mixture after the completion of granulation, final products are made.The drying process is the phase III
Polymerization and deep-crosslinked reaction.
Step S1-S7 is grafted using multiple step format, the MOLECULE DESIGN pattern polymerizeing at many levels, by ionic hydrophilic monomer and non-
Ionic hydrophilic monomer copolymerization is obtained with ionic and nonionic suction water conservation material, and this method significantly improves high score
The salt tolerance and resistance to acids and bases of sub- polymer, and ensure that from molecular structure the suction for inhaling water conservation material discharges water invertibity and Ke Sheng
The characteristic of thing degraded.
Preferably, in the step S1, reaction temperature control is 90 degree.Finally give reactant low molecule amount and be modified poly- second
Enol.
Preferably, in the step S2, the concentration of sodium hydroxide solution is 30%；And the degree of neutralization of control 90%, cooling
It is standby to room temperature.
Preferably, the duration of secondary agitation is no less than 30 minutes in the step S4, and during secondary agitation, temperature
It is final to improve and be held in 70 degree.
Preferably, in the step S6, the operating temperature control of comminutor is 70 degree, and the spray second two in granulation process
Alcohol.
Preferably, the drying process of mixture is carried out in carriage-type drying machine in the step S7, and be gradually heating to
80 degree, 105 degree are warming up to after drying 2-4 hours again and is kept for 9-11 hours, finally give the product that moisture is less than 6%, product
Size-reduced, finished product agricultural water-loss reducer is packed to obtain in screening.
As a result a kind of agricultural water-loss reducer with highly effective water-keeping performance of the present invention shows to be detected by League of Nations's quality testing
Project absorbs multiple, suction salt solution multiple, moisture, PH and granularity and meets the requirement of NY886-2010 standards, and its outward appearance is solid
The light yellow uniform powder of body, absorption multiple is 680g/g, inhales salt solution multiple 35g/g, moisture is that 6.2%, PH is 6.7, grain
Spend for 92%, mercury content is less than 1mg/kg, arsenic is less than 1mg/kg, and cadmium is less than 1mg/kg, and lead is less than 2mg/kg , Chrome and is less than 2mg/
kg。
Compared with prior art, a kind of agricultural water-loss reducer agricultural water-loss reducer with highly effective water-keeping performance of the present invention is by big
Molecular modification starch, acrylic acid, polyvinyl acetate, glycerine, ammonium persulfate, sodium thiosulfate, sodium hydroxide, and dodecane
Base sodium sulphate and the graft copolymerization of moisture stage are formed.So obtained water-loss reducer has good salt tolerance and crushing resistance, and makes
With the phase more than 3 years, and containing a variety of elements highly beneficial to plant growth and water and soil conservation such as C, O, H, N, K and by this
The chemical bond and group of a little element compositions, the mixing property with farm manure, chemical fertilizer, soil and fine sand etc. are good, with high water absorption, water conservation
Property and release aqueous, the product is to people, animals and plants nonhazardous, and specific function group in its network molecular structure is to pb, cd, hg
There is very strong complexing chelation Deng toxic metal ions, so as to purify soil environment water source.
The embodiments of the present invention described above are not intended to limit the scope of the present invention.It is any in the present invention
Spirit and principle within the modifications, equivalent substitutions and improvements made etc., should be included in the claim protection model of the present invention
Within enclosing.
Claims (10)
1. a kind of agricultural water-loss reducer with highly effective water-keeping performance, it is characterised in that：Include following components by weight percentage：
Modified starch 15-35%；
Acrylic acid 30-50%；
Polyvinyl acetate 5-17%；
Sodium hydroxide 15-40%；
Sodium dodecyl sulfate solution 3-9%；
Ammonium persulfate 0.1-0.35%；
Sodium thiosulfate 0.1-0.8%；
Ethylene glycol 0.2-0.65%.
2. a kind of agricultural water-loss reducer with highly effective water-keeping performance as claimed in claim 1, it is characterised in that：The dodecane
The solution concentration of base metabisulfite solution is 5%.
3. a kind of agricultural water-loss reducer with highly effective water-keeping performance as claimed in claim 1, it is characterised in that：The hydroxide
The solution concentration of sodium is 30%.
4. a kind of agricultural water-loss reducer with highly effective water-keeping performance as claimed in claim 1, it is characterised in that：Percentage by weight
Than including following components：
Modified starch 20%；
Acrylic acid 40%；
Polyvinyl acetate 8%；
Sodium hydroxide 25%；
Sodium dodecyl sulfate solution 6%；
Ammonium persulfate 0.25%；
Sodium thiosulfate 0.3%；
Ethylene glycol 0.45%.
5. a kind of preparation method with highly effective water-keeping performance agricultural water-loss reducer, it is characterised in that：Comprise the following steps that,
S1, modified starch and polyvinyl acetate be separately added into reaction vessel, and pour into reaction vessel a certain amount of water
And ethylene glycol, controlling reaction temperature is 80-100 degree, and polyvinyl alcohol is made；
S2, a certain amount of acrylic acid poured into another reaction vessel, and toward adding a certain amount of hydroxide in the reaction vessel
Sodium solution carries out neutralization reaction, and room temperature is cooled to after the completion of reaction；
S3, a certain amount of modified starch added and be gelatinized in another reaction vessel, and be cooled to room temperature；
S4, the solution after the completion of neutralization reaction in step S2 is added and stirred in the reaction vessel after step S3 gelatinization terminates
Mix, sodium dodecyl sulfate solution, ammonium persulfate and sodium thiosulfate are sequentially added after the completion of stirring, carry out secondary agitation, and
Temperature is improved constantly in whipping process；
S5, by the mixture obtained after obtained polyvinyl alcohol in step S1 and step S4 secondary agitations with one to one mass ratio
Mix, and be incubated 2-3 hours；
After the completion of S6, insulation, mixture is put into comminutor and granulated；
S7, processing is dried to the mixture after the completion of granulation, final products are made.
6. a kind of agricultural water-loss reducer and preparation method with highly effective water-keeping performance as claimed in claim 5, it is characterised in that：
In the step S1, reaction temperature control is 90 degree.
7. a kind of agricultural water-loss reducer and preparation method with highly effective water-keeping performance as claimed in claim 5, it is characterised in that：
In the step S2, the concentration of sodium hydroxide solution is 30%；And the degree of neutralization of control 90%.
8. a kind of agricultural water-loss reducer and preparation method with highly effective water-keeping performance as claimed in claim 5, it is characterised in that：
The duration of secondary agitation is no less than 30 minutes in the step S4, and during secondary agitation, temperature is finally improved and kept
In 70 degree.
9. a kind of agricultural water-loss reducer and preparation method with highly effective water-keeping performance as claimed in claim 5, it is characterised in that：
In the step S6, the operating temperature control of comminutor is 70 degree, and the spraying ethylene glycol in granulation process.
10. a kind of agricultural water-loss reducer and preparation method with highly effective water-keeping performance as claimed in claim 5, its feature exist
In：The drying process of mixture is carried out in carriage-type drying machine in the step S7, and is gradually heating to 80 degree, dry 2-4
105 degree are warming up to after hour again to be kept for 9-11 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201611023199.5A CN107033300A (en) | 2016-11-21 | 2016-11-21 | A kind of agricultural water-loss reducer and preparation method with highly effective water-keeping performance |
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| CN201611023199.5A CN107033300A (en) | 2016-11-21 | 2016-11-21 | A kind of agricultural water-loss reducer and preparation method with highly effective water-keeping performance |
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| CN201611023199.5A Pending CN107033300A (en) | 2016-11-21 | 2016-11-21 | A kind of agricultural water-loss reducer and preparation method with highly effective water-keeping performance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107353163A (en) * | 2017-09-05 | 2017-11-17 | 霍邱金木鱼农业科技有限公司 | A kind of agricultural water-loss reducer and preparation method thereof |
| CN109400813A (en) * | 2018-10-23 | 2019-03-01 | 浙江金晟环保股份有限公司 | A kind of water material and preparation method thereof of sucking blood applied to buffet disk |
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| CN1408741A (en) * | 2001-09-24 | 2003-04-09 | 合肥新峰建材有限公司 | Method for preparing anti-drought water-retaining agent |
| CN101302269A (en) * | 2007-05-11 | 2008-11-12 | 内蒙古大学 | Preparation of super absorbent resin |
| CN102850706A (en) * | 2012-09-18 | 2013-01-02 | 福州大学 | Etherified-starch-grafted-copolymer super absorbent resin and preparation method thereof |
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2016
- 2016-11-21 CN CN201611023199.5A patent/CN107033300A/en active Pending
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| CN1408741A (en) * | 2001-09-24 | 2003-04-09 | 合肥新峰建材有限公司 | Method for preparing anti-drought water-retaining agent |
| CN101302269A (en) * | 2007-05-11 | 2008-11-12 | 内蒙古大学 | Preparation of super absorbent resin |
| CN102850706A (en) * | 2012-09-18 | 2013-01-02 | 福州大学 | Etherified-starch-grafted-copolymer super absorbent resin and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107353163A (en) * | 2017-09-05 | 2017-11-17 | 霍邱金木鱼农业科技有限公司 | A kind of agricultural water-loss reducer and preparation method thereof |
| CN109400813A (en) * | 2018-10-23 | 2019-03-01 | 浙江金晟环保股份有限公司 | A kind of water material and preparation method thereof of sucking blood applied to buffet disk |
| CN109400813B (en) * | 2018-10-23 | 2021-05-07 | 浙江金晟环保股份有限公司 | Blood-absorbing material applied to cold-dining plate and preparation method thereof |
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Application publication date: 20170811 |