CN106280187A - A kind of antibacterial agricultural lawn water-preserving nutritive agent of starch conversion and preparation method thereof - Google Patents
A kind of antibacterial agricultural lawn water-preserving nutritive agent of starch conversion and preparation method thereof Download PDFInfo
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- CN106280187A CN106280187A CN201610673543.9A CN201610673543A CN106280187A CN 106280187 A CN106280187 A CN 106280187A CN 201610673543 A CN201610673543 A CN 201610673543A CN 106280187 A CN106280187 A CN 106280187A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/02—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to polysaccharides
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- 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
- C08F251/02—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof on to cellulose or derivatives thereof
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- 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
- C09K17/16—Soil-conditioning materials or soil-stabilising materials containing organic compounds only applied in a physical form other than a solution or a grout, e.g. as platelets or granules
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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Abstract
nullThe invention discloses a kind of antibacterial agricultural lawn water-preserving nutritive agent of starch conversion，It is made up of the raw material of following weight parts，Acrylic acid 24 30、Acrylamide 31 40、Corn starch 20 30、Methylisothiazolinone 0.1 0.2、Polyvinylpyrrolidone 7 10、Rape stalk 170 200、N,N ' methylene-bisacrylamide 0.8 2、Ammonium persulfate. 0.2 0.4、Glycine 0.01 0.02、Lysine 0.01 0.02、Cera Flava 12、Sodium lignin sulfonate 0.7 1、Chitosan 0.2 0.3、Cross-linking agent taic0.3 1、Polylactic acid 67、Lauric acid amide of ethanol 0.1 0.2，The present invention is possible not only to effectively utilize waste resource，Reduce environmental pollution，Preparation cost can also be reduced，Improve water-absorbing resin performance.
Description
Technical field
The present invention relates to water-retaining agent technical field, particularly relate to a kind of antibacterial agricultural lawn water-preserving nutritive agent of starch conversion and
Its preparation method.
Background technology
In recent years, along with the selection of new raw material, the Composite of macromolecular material, High hydrophilous resin presents diversified trend,
Now study main compound type to have, High hydrophilous resin and compound, the High hydrophilous resin of inorganic matter and organic suction compound, high
Water-resin is combined with the blending type of High hydrophilous resin.Wherein, High hydrophilous resin mainly includes not with the complex of High hydrophilous resin
With being total between latex interpenetrating polymerization and the crosslinking of different hydrophilic polymer and the different High hydrophilous resin of High hydrophilous resin
Mix；
Super absorbent resin has efficient water suction, water retention property, therefore in the application of agricultural, gradually by as slow release fertilizer
Carrier.The effective rate of utilization of China's agrochemical is low, and the fertilizer major part used is lost by different approaches, it is impossible to by agriculture
Crop, and cause the pollution of serious environment.Using High hydrophilous resin as the carrier of slow release fertilizer, utilize super absorbent resin
The water-absorbing-retaining performance of fat, carries out absorption and slowly release, as carrier material, can be effectively improved the utilization of fertilizer fertilizer
Rate, reduces again the pollution of environment, has given full play to water conservation function of fertilizer retention.But existing chemosynthesis High hydrophilous resin, at soil
In can not biodegradation, which results in Soil Environmental Pollution.Therefore, degradable High hydrophilous resin becomes the research in this field existing
Focus, becomes the carrier of slow release fertilizer, and existing slow release fertilizer research function is more single, simple interpolation carbamide or phosphorus
Fertile, it is impossible to give full play to the advantage of High hydrophilous resin.Therefore, the improvement of functionalization becomes existing research problem demanding prompt solution；
Along with the enhancing of people's environmental consciousness, utilize natural macromolecular material to prepare High hydrophilous resin, the most progressively replace traditional
Chemical polymerization synthesizes, and native starch, cellulose are all resourceful regenerative resources, has cheap, renewable etc. excellent
Point, but the prior synthesizing method of starch-series High hydrophilous resin is complicated and process is wayward, and the salt tolerance of product is poor, and synthesizes tree
Fat system High hydrophilous resin water absorbent rate is higher, but salt tolerance is poor, and degradation rate is low, produces environment and pollutes.
Summary of the invention
The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of starch conversion antibacterial agricultural lawn water conservation
Nutrient and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of antibacterial agricultural lawn water-preserving nutritive agent of starch conversion, it is made up of the raw material of following weight parts:
Acrylic acid 24-30, acrylamide 31-40, corn starch 20-30, Methylisothiazolinone 0.1-0.2, polyvinyl pyrrole
Alkanone 7-10, rape stalk 170-200, N, N '-methylene-bisacrylamide 0.8-2, Ammonium persulfate. 0.2-0.4, glycine
0.01-0.02, lysine 0.01-0.02, Cera Flava 1-2, sodium lignin sulfonate 0.7-1, chitosan 0.2-0.3, cross-linking agent
Taic0.3-1, polylactic acid 6-7, lauric acid amide of ethanol 0.1-0.2.
The preparation method of the antibacterial agricultural lawn water-preserving nutritive agent of a kind of starch conversion, comprises the following steps:
(1) first being pulverized by rape stalk, join in the sodium hydroxide that concentration is 10-14%, at 70-80 DEG C, steaming and decocting 50-60 divides
Clock, filters discharging, is then added in the nitric acid of 1.8-2mol/l, insulated and stirred 40-50 minute at 87-90 DEG C, filters discharging,
Wash 3-4 time, normal temperature drying, obtain pretreated straw powder；
(2) take above-mentioned sodium lignin sulfonate, join in the deionized water of its weight 100-110 times, stir, add methyl
Isothiazolone, rises high-temperature and is 57-60 DEG C, add above-mentioned corn starch, insulated and stirred 18-20 minute, obtain gelatinized starch liquid；
(3) joining in polyvinylpyrrolidone by above-mentioned Cera Flava, send in the water-bath of 80-90 DEG C, insulated and stirred 20-30 is divided
Clock, adds polylactic acid, continues insulation 4-6 minute, discharging, adds above-mentioned lauric acid amide of ethanol, and stirring, to room temperature, secures satisfactory grades
Sub-dispersion liquid；
(4) by above-mentioned gelatinized starch liquid, high molecular dispersion liquid mixing, cross-linking agent taic is added under stirring condition, at 60-65 DEG C
Insulated and stirred 1-2 hour, obtains modified starch liquid；
(5) take the carbamide mixing of the sodium hydroxide of the 10-15 that mass ratio is 1.8-2:1,20-23%, stir, obtain aqueous slkali；
(6) taking acrylic acid, drip above-mentioned aqueous slkali under agitation, regulation pH is 7-8, is sequentially added into acrylamide with above-mentioned
Pretreated straw powder, rises high-temperature and is 50-60 DEG C, addition Ammonium persulfate., glycine, lysine, insulated and stirred 20-30 minute,
Adding modified starch liquid and remain each raw material, 100-200 rev/min is stirred 10-20 minute, filters, at being deposited in 100-105 DEG C
It is dried 1-2 hour, to obtain final product.
The invention have the advantage that
The present invention utilizes natural discarded rice straw, and glycerol polymerization synthetic fibers prime system High hydrophilous resin, as the base of water-loss reducer of soil
Plinth material, improves its water absorption rate, salt tolerance, improves the degradation rate in soil, is possible not only to effectively utilize waste resource, reduces
Environmental pollution, it is also possible to reduce preparation cost, improves water-absorbing resin performance, is wherein also added into Methylisothiazolinone etc. antibacterial
Material, adds chitosan, glycine, lysine etc. as nutrient substance, further increases the combination property of finished product.
Detailed description of the invention
A kind of antibacterial agricultural lawn water-preserving nutritive agent of starch conversion, it is made up of the raw material of following weight parts:
Acrylic acid 24, acrylamide 31, corn starch 30, Methylisothiazolinone 0.2, polyvinylpyrrolidone 7, rape stalk
200, N, N '-methylene-bisacrylamide 0.8, Ammonium persulfate. 0.4, glycine 0.01, lysine 0.01, Cera Flava 2, sulfomethylated lignin
Acid sodium 0.7, chitosan 0.2, cross-linking agent taic0.3, polylactic acid 7, lauric acid amide of ethanol 0.2.
The preparation method of the antibacterial agricultural lawn water-preserving nutritive agent of a kind of starch conversion, comprises the following steps:
(1) first being pulverized by rape stalk, join in the sodium hydroxide that concentration is 14%, at 80 DEG C, steaming and decocting 50 minutes, filter out
Material, is then added in the nitric acid of 1.8mol/l, insulated and stirred 50 minutes at 90 DEG C, filters discharging, washes 3 times, normal temperature drying,
Obtain pretreated straw powder；
(2) take above-mentioned sodium lignin sulfonate, join in the deionized water of its weight 110 times, stir, add the different thiophene of methyl
Oxazoline ketone, rising high-temperature is 60 DEG C, adds above-mentioned corn starch, insulated and stirred 20 minutes, obtains gelatinized starch liquid；
(3) above-mentioned Cera Flava is joined in polyvinylpyrrolidone, send in the water-bath of 90 DEG C, insulated and stirred 20 minutes, add
Polylactic acid, continues insulation 4 minutes, discharging, adds above-mentioned lauric acid amide of ethanol, and stirring is to room temperature, and secure satisfactory grades sub-dispersion liquid；
(4) by above-mentioned gelatinized starch liquid, high molecular dispersion liquid mixing, add cross-linking agent taic under stirring condition, protect at 65 DEG C
Temperature stirring 1 hour, obtains modified starch liquid；
(5) take the sodium hydroxide of mass ratio is 1.8:1 15, the carbamide of 23% mixes, stir, obtain aqueous slkali；
(6) taking acrylic acid, drip above-mentioned aqueous slkali under agitation, regulation pH is 7, is sequentially added into acrylamide pre-with above-mentioned
Processing powder of straw, rising high-temperature is 60 DEG C, adds Ammonium persulfate., glycine, lysine, insulated and stirred 30 minutes, adds modification
Starch fluid and each raw material of residue, 200 revs/min are stirred 10 minutes, filter, and will be deposited at 105 DEG C and be dried 2 hours, and to obtain final product.
Performance test:
Water absorption rate in 0.9 wt%NaCl solution reaches 69g/g.
Claims (2)
1. the antibacterial agricultural lawn water-preserving nutritive agent of starch conversion, it is characterised in that it is by the raw material group of following weight parts
Become:
Acrylic acid 24-30, acrylamide 31-40, corn starch 20-30, Methylisothiazolinone 0.1-0.2, polyvinyl pyrrole
Alkanone 7-10, rape stalk 170-200, N, N '-methylene-bisacrylamide 0.8-2, Ammonium persulfate. 0.2-0.4, glycine
0.01-0.02, lysine 0.01-0.02, Cera Flava 1-2, sodium lignin sulfonate 0.7-1, chitosan 0.2-0.3, cross-linking agent
Taic0.3-1, polylactic acid 6-7, lauric acid amide of ethanol 0.1-0.2.
2. a preparation method for the antibacterial agricultural lawn water-preserving nutritive agent of starch conversion as claimed in claim 1, its feature exists
In, comprise the following steps:
(1) first being pulverized by rape stalk, join in the sodium hydroxide that concentration is 10-14%, at 70-80 DEG C, steaming and decocting 50-60 divides
Clock, filters discharging, is then added in the nitric acid of 1.8-2mol/l, insulated and stirred 40-50 minute at 87-90 DEG C, filters discharging,
Wash 3-4 time, normal temperature drying, obtain pretreated straw powder；
(2) take above-mentioned sodium lignin sulfonate, join in the deionized water of its weight 100-110 times, stir, add methyl
Isothiazolone, rises high-temperature and is 57-60 DEG C, add above-mentioned corn starch, insulated and stirred 18-20 minute, obtain gelatinized starch liquid；
(3) joining in polyvinylpyrrolidone by above-mentioned Cera Flava, send in the water-bath of 80-90 DEG C, insulated and stirred 20-30 is divided
Clock, adds polylactic acid, continues insulation 4-6 minute, discharging, adds above-mentioned lauric acid amide of ethanol, and stirring, to room temperature, secures satisfactory grades
Sub-dispersion liquid；
(4) by above-mentioned gelatinized starch liquid, high molecular dispersion liquid mixing, cross-linking agent taic is added under stirring condition, at 60-65 DEG C
Insulated and stirred 1-2 hour, obtains modified starch liquid；
(5) take the carbamide mixing of the sodium hydroxide of the 10-15 that mass ratio is 1.8-2:1,20-23%, stir, obtain aqueous slkali；
(6) taking acrylic acid, drip above-mentioned aqueous slkali under agitation, regulation pH is 7-8, is sequentially added into acrylamide with above-mentioned
Pretreated straw powder, rises high-temperature and is 50-60 DEG C, addition Ammonium persulfate., glycine, lysine, insulated and stirred 20-30 minute,
Adding modified starch liquid and remain each raw material, 100-200 rev/min is stirred 10-20 minute, filters, at being deposited in 100-105 DEG C
It is dried 1-2 hour, to obtain final product.
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| CN201610673543.9A CN106280187A (en) | 2016-08-16 | 2016-08-16 | A kind of antibacterial agricultural lawn water-preserving nutritive agent of starch conversion and preparation method thereof |
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| CN201610673543.9A CN106280187A (en) | 2016-08-16 | 2016-08-16 | A kind of antibacterial agricultural lawn water-preserving nutritive agent of starch conversion and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106947494A (en) * | 2017-04-14 | 2017-07-14 | 四川绿达环保科技发展有限公司 | A kind of water-loss reducer and preparation method thereof |
| 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 |
| CN110041130A (en) * | 2019-04-30 | 2019-07-23 | 邵淑华 | A kind of preparation method of plant nutrient functional composite material |
| CN112552925A (en) * | 2020-12-14 | 2021-03-26 | 北部湾海洋新材料研究院 | Drought-resistant water-retaining material for agriculture and forestry |
| CN117860948A (en) * | 2024-03-12 | 2024-04-12 | 江西永通科技股份有限公司 | Medical composite functional antibacterial dressing and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104449750A (en) * | 2014-11-18 | 2015-03-25 | 成都科衡环保技术有限公司 | Water retention agent and preparation method thereof |
Non-Patent Citations (2)
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| 傅绪成等: "以大麻秸秆等废弃物为原料的农用保水剂制备研究", 《皖西学院学报》 * |
| 冯亚青等编: "《助剂化学及工艺学》", 30 June 1997, 化学工业出版社 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106947494A (en) * | 2017-04-14 | 2017-07-14 | 四川绿达环保科技发展有限公司 | A kind of water-loss reducer and preparation method thereof |
| 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 |
| CN110041130A (en) * | 2019-04-30 | 2019-07-23 | 邵淑华 | A kind of preparation method of plant nutrient functional composite material |
| CN112552925A (en) * | 2020-12-14 | 2021-03-26 | 北部湾海洋新材料研究院 | Drought-resistant water-retaining material for agriculture and forestry |
| CN117860948A (en) * | 2024-03-12 | 2024-04-12 | 江西永通科技股份有限公司 | Medical composite functional antibacterial dressing and preparation method thereof |
| CN117860948B (en) * | 2024-03-12 | 2024-06-04 | 江西永通科技股份有限公司 | Medical composite functional antibacterial dressing and preparation method thereof |
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