CN106588267A - Fertilizer coating composition - Google Patents
Fertilizer coating composition Download PDFInfo
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- CN106588267A CN106588267A CN201611028526.6A CN201611028526A CN106588267A CN 106588267 A CN106588267 A CN 106588267A CN 201611028526 A CN201611028526 A CN 201611028526A CN 106588267 A CN106588267 A CN 106588267A
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- coating composition
- fertilizer coating
- fertilizer
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
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- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Fertilizers (AREA)
Abstract
The invention provides a fertilizer coating composition. The composition is characterized by comprising, by weight, 20-30 parts of waterborne polyurethane, 8-12 parts of sodium alginate, 1-3 parts of foaming agent, 3-5 parts of emulsifying agent and 60-80 parts of deionized water. By means of the fertilizer coating composition, the slow release effect of a fertilizer is good, cost is low, the environment is not contaminated, and a preparation method is simple.
Description
Technical field
The present invention relates to technical field of fertilizers, more particularly to a kind of fertilizer coating composition.
Background technology
Coated fertilizer is referred to granular chemical fertilizer（Nitrogen or compound nitrogen phosphate fertilizer etc.）For core, top layer coat one layer of low aqueous solubility or
Microsolubility inorganic substances or organic polymer, make fertilizer component by the micropore of coating, crack slow release out so as to change
The stripping property of chemical fertilizer nutrient, extends or controls fertilizer nutrient release, makes the supply of soil nutrient new with what crop demand was coordinated
Fertilizer
Coated fertilizer, mainly carries out coating with wax, polymer and sulphur, it is also possible to pitch, portland cement. ammonium magnesium phosphate
Deng coating.It is exactly to coat half water penetration or impermeability material in granular water soluble (quick-acting) fertilizer surface, makes nutrient pass through bag
Micropore, the gap slow release of film out, or discharges in a large number in a certain growth phase of crop, is absorbed by crop, so as to
Nutrient loss is reduced, utilization rate of fertilizer is improved.The coated fertilizer used soluble substance is divided into three types by its property:（1）、
Half water penetration film:The semi-transparent aqueous film material of parcel is penetrated into due to moisture, internal pressure increase, swollen in regular period film
Broken, fertilizer is discharged again.（2）, the indissoluble impermeability film of microorganism:The micropore that soluble substance passes through impermeability film
And spread, the rate of release of nitrogen is adjusted by the thickness or seal degree of film.（3）, microorganism decomposable asymmetric choice net or degradable waterproof
Property film:Before nutrients release, impermeability film ruptures because of chemical action, microbial action and abrasive action.
The patent application of one Publication No. CN104003784A discloses a kind of sustained release bag of highly effective slow releasing compound fertilizer
Film wax, a kind of release-controlled coated wax of described highly effective slow releasing compound fertilizer is glittering and translucent graininess, and it is with 42 ~ 75%
(wt) refining wax, the microwax of 15 ~ 50% (wt), 35 ~ 55% (wt) beeswaxs, 18 ~ 33% (wt) palm waxs, 1 ~ 10% (wt) worm
Chinese wax etc. is primary raw material, and the material group such as additive, auxiliary agent, biodegradable promotion material, acidic mixture, organic materials
Into, it is 95 DEG C ~ 105 DEG C in temperature, 20 ~ 40min of reaction is so as to prepared.A kind of highly effective slow releasing compound fertilizer described in the present invention
Release-controlled coated wax is extensive with simple, raw material sources are prepared, and preferably toughness and intensity, can reach in soil good
Slow release effect, can neutralize basic soil, and the advantages of do not pollute to environment.But wax is used as the coated fertilizer of fertilizer
The disadvantage is that, to make the slow release effect of fertilizer more satisfactory, the consumption of wax is higher, this causes slow release fertilizer to prepare expense becomes
It is expensive.
The content of the invention
It is an object of the invention to provide a kind of fertilizer coating composition, the fertilizer coating composition imitates the sustained release of fertilizer
Really good, with low cost, free from environmental pollution, preparation method is simple.
To solve above-mentioned technical problem, the present invention is achieved through the following technical solutions.
A kind of fertilizer coating composition, including the following compositions of following weight parts：Aqueous polyurethane 20-30 parts,
Sodium alginate 8-12 parts, foaming agent 1-3 parts, emulsifying agent 3-5 parts, deionized water 60-80 part.
Described waterborne polyurethane resin is that 1,6- hexamethylene diisocyanates, polyethylene glycol, Fluorinated dihydric alcohol is anti-
Performed polymer should be obtained, then adds dihydromethyl propionic acid to react 1-1.5 hours at 70-80 DEG C the performed polymer, be subsequently adding two
Ethamine obtains final product waterborne polyurethane resin in 1 hour in 65-70 DEG C of reaction.
1, the 6- hexamethylene diisocyanates are 2 with the mol ratio of polyethylene glycol:1, polyether Glycols and fluorine-containing two
The weight ratio of first alcohol is 4:1.
The performed polymer is 10 with the weight ratio of dihydromethyl propionic acid:100.
The emulsifying agent is modified bay alcohol radical sodium sulphate.
The foaming agent is methyl diphenylene diisocyanate.
The fertilizer coating composition is prepared according to the following steps：Sodium alginate, emulsifying agent, deionization are weighed by above-mentioned formula
Water adds emulsification in container until forming homogeneous emulsion, then weighs aqueous polyurethane by formula, and foaming agent continues
Emulsification is until form homogeneous emulsion.
Beneficial effect：
The fertilizer coating composition of the present invention adopts aqueous polyurethane and sodium alginate as the main material of coating, water
Property polyurethanes without other organic solvents, it is free from environmental pollution, sodium alginate be degradable natural polysaccharide, be slightly soluble in
Water, compounds and adds defoamer with aqueous polyurethane, is formed water-soluble micro- with the reticulate body of water-insoluble two kinds of films
Pore membrane, so as to reach the Controlled release to fertilizer, the coating composition has excellent controlled release properties, low cost, anti-impact wear-resistant
The advantages of, also biological can drop in soil with nontoxic pollution-free and polymer residual film during production, storage and use
The advantages of solution.
Specific embodiment party
The present invention is illustrated with reference to specific embodiment.
Embodiment 1
A kind of fertilizer coating composition, including the following compositions of following weight parts：20 parts of aqueous polyurethane, sodium alginate
8 parts, 1 part of foaming agent, 3 parts of emulsifying agent, 60 parts of deionized water.
Embodiment 2
A kind of fertilizer coating composition, including the following compositions of following weight parts：30 parts of aqueous polyurethane, sodium alginate
12 parts, 3 parts of foaming agent, 5 parts of emulsifying agent, 80 parts of deionized water.
Embodiment 3
A kind of fertilizer coating composition, including the following compositions of following weight parts：25 parts of aqueous polyurethane, sodium alginate
10 parts, 2 parts of foaming agent, 4 parts of emulsifying agent, 70 parts of deionized water.
Embodiment 4
A kind of fertilizer coating composition, including the following compositions of following weight parts：20 parts of aqueous polyurethane, sodium alginate
8 parts, 1 part of foaming agent, 3 parts of emulsifying agent, 60 parts of deionized water.
Described waterborne polyurethane resin is that 1,6- hexamethylene diisocyanates, polyethylene glycol, Fluorinated dihydric alcohol is anti-
Performed polymer should be obtained, then adds dihydromethyl propionic acid to react 1-1.5 hours at 70-80 DEG C the performed polymer, be subsequently adding two
Ethamine obtains final product waterborne polyurethane resin in 1 hour in 65-70 DEG C of reaction.
Embodiment 5
A kind of fertilizer coating composition, including the following compositions of following weight parts：30 parts of aqueous polyurethane, sodium alginate
12 parts, 3 parts of foaming agent, 5 parts of emulsifying agent, 80 parts of deionized water.
Described waterborne polyurethane resin is that 1,6- hexamethylene diisocyanates, polyethylene glycol, Fluorinated dihydric alcohol is anti-
Performed polymer should be obtained, then adds dihydromethyl propionic acid to react 1-1.5 hours at 70-80 DEG C the performed polymer, be subsequently adding two
Ethamine obtains final product waterborne polyurethane resin in 1 hour in 65-70 DEG C of reaction.
1, the 6- hexamethylene diisocyanates are 2 with the mol ratio of polyethylene glycol:1, polyether Glycols and fluorine-containing two
The weight ratio of first alcohol is 4:1.
Embodiment 6
A kind of fertilizer coating composition, including the following compositions of following weight parts：25 parts of aqueous polyurethane, sodium alginate
10 parts, 2 parts of foaming agent, 4 parts of emulsifying agent, 70 parts of deionized water.
Described waterborne polyurethane resin is that 1,6- hexamethylene diisocyanates, polyethylene glycol, Fluorinated dihydric alcohol is anti-
Performed polymer should be obtained, then adds dihydromethyl propionic acid to react 1-1.5 hours at 70-80 DEG C the performed polymer, be subsequently adding two
Ethamine obtains final product waterborne polyurethane resin in 1 hour in 65-70 DEG C of reaction.
1, the 6- hexamethylene diisocyanates are 2 with the mol ratio of polyethylene glycol:1, polyether Glycols and fluorine-containing two
The weight ratio of first alcohol is 4:1.
The performed polymer is 10 with the weight ratio of dihydromethyl propionic acid:100.
Embodiment 7
A kind of fertilizer coating composition, including the following compositions of following weight parts：30 parts of aqueous polyurethane, sodium alginate
12 parts, 3 parts of foaming agent, 5 parts of emulsifying agent, 80 parts of deionized water.
The emulsifying agent is modified bay alcohol radical sodium sulphate.
Embodiment 8
A kind of fertilizer coating composition, including the following compositions of following weight parts：25 parts of aqueous polyurethane, sodium alginate
10 parts, 2 parts of foaming agent, 4 parts of emulsifying agent, 70 parts of deionized water.
The foaming agent is methyl diphenylene diisocyanate.
Embodiment 9
A kind of fertilizer coating composition, including the following compositions of following weight parts：25 parts of aqueous polyurethane, sodium alginate
10 parts, 2 parts of foaming agent, 4 parts of emulsifying agent, 70 parts of deionized water.
The fertilizer coating composition is prepared according to the following steps：Sodium alginate, emulsifying agent, deionization are weighed by above-mentioned formula
Water adds emulsification in container until forming homogeneous emulsion, then weighs aqueous polyurethane by formula, and foaming agent continues
Emulsification is until form homogeneous emulsion.
Claims (7)
1. a kind of fertilizer coating composition, it is characterised in that：Including the following compositions of following weight parts：Aqueous polyurethane
20-30 parts, sodium alginate 8-12 parts, foaming agent 1-3 parts, emulsifying agent 3-5 parts, deionized water 60-80 part.
2. a kind of fertilizer coating composition according to claim 1, it is characterised in that：Described waterborne polyurethane resin is
1,6- hexamethylene diisocyanates, polyethylene glycol, Fluorinated dihydric alcohol reaction are obtained into performed polymer, then add the performed polymer
Dihydromethyl propionic acid reacts 1-1.5 hours at 70-80 DEG C, is subsequently adding diethylamine and obtains final product within 1 hour aqueous gathering in 65-70 DEG C of reaction
Urethane resin.
3. a kind of fertilizer coating composition according to claim 1, it is characterised in that：The emulsifying agent is modified laruyl alcohol
Base sodium sulphate.
4. a kind of fertilizer coating composition according to claim 1, it is characterised in that：The foaming agent is diphenyl methane
Diisocyanate.
5. a kind of fertilizer coating composition according to claim 2, it is characterised in that：The isocyanide of 1,6- hexa-methylenes two
Acid esters is 2 with the mol ratio of polyethylene glycol：1, polyether Glycols are 4 with the weight ratio of Fluorinated dihydric alcohol：1.
6. a kind of fertilizer coating composition according to claim 2, it is characterised in that：The performed polymer and dihydroxymethyl third
The weight ratio of acid is 10：100.
7. a kind of fertilizer coating composition according to claim 1, it is characterised in that：The fertilizer coating composition is pressed
State step preparation：Sodium alginate, emulsifying agent, deionized water are weighed by above-mentioned formula add emulsification in container until being formed homogeneous
Emulsion, then weighs aqueous polyurethane by formula, and foaming agent continues to emulsify until forming homogeneous emulsion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611028526.6A CN106588267A (en) | 2016-11-22 | 2016-11-22 | Fertilizer coating composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611028526.6A CN106588267A (en) | 2016-11-22 | 2016-11-22 | Fertilizer coating composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106588267A true CN106588267A (en) | 2017-04-26 |
Family
ID=58592492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611028526.6A Pending CN106588267A (en) | 2016-11-22 | 2016-11-22 | Fertilizer coating composition |
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| CN (1) | CN106588267A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107032891A (en) * | 2017-05-10 | 2017-08-11 | 山东农业大学 | A kind of super-hydrophobic bio-based film-coated controlled release fertilizer and preparation method thereof |
| CN111868014A (en) * | 2018-02-09 | 2020-10-30 | 瑞南科技私人有限公司 | Intelligent release type nitrogenous fertilizer granule |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103833490A (en) * | 2012-11-22 | 2014-06-04 | 苏斌 | Green and environment friendly polyurethane coated controlled release fertilizer |
| CN103910577A (en) * | 2014-04-04 | 2014-07-09 | 成都新柯力化工科技有限公司 | Slowly-soluble fertilizer and preparation method thereof |
| CN105061054A (en) * | 2015-08-06 | 2015-11-18 | 中国农业科学院烟草研究所 | Coated sustained-release fertilizer and production method thereof |
-
2016
- 2016-11-22 CN CN201611028526.6A patent/CN106588267A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103833490A (en) * | 2012-11-22 | 2014-06-04 | 苏斌 | Green and environment friendly polyurethane coated controlled release fertilizer |
| CN103910577A (en) * | 2014-04-04 | 2014-07-09 | 成都新柯力化工科技有限公司 | Slowly-soluble fertilizer and preparation method thereof |
| CN105061054A (en) * | 2015-08-06 | 2015-11-18 | 中国农业科学院烟草研究所 | Coated sustained-release fertilizer and production method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 王晶: "海洋生物多糖包膜缓释肥的制备及释放性能研究", 《中国科学院大学》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107032891A (en) * | 2017-05-10 | 2017-08-11 | 山东农业大学 | A kind of super-hydrophobic bio-based film-coated controlled release fertilizer and preparation method thereof |
| CN107032891B (en) * | 2017-05-10 | 2020-03-10 | 山东农业大学 | Super-hydrophobic bio-based coated controlled release fertilizer and preparation method thereof |
| CN111868014A (en) * | 2018-02-09 | 2020-10-30 | 瑞南科技私人有限公司 | Intelligent release type nitrogenous fertilizer granule |
| CN111868014B (en) * | 2018-02-09 | 2023-12-08 | 瑞南科技私人有限公司 | Intelligent release type nitrogen-containing fertilizer particles |
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Application publication date: 20170426 |
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