CN108516889A - A kind of coating agent and preparation method thereof - Google Patents
A kind of coating agent and preparation method thereof Download PDFInfo
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- CN108516889A CN108516889A CN201810398223.6A CN201810398223A CN108516889A CN 108516889 A CN108516889 A CN 108516889A CN 201810398223 A CN201810398223 A CN 201810398223A CN 108516889 A CN108516889 A CN 108516889A
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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 discloses a kind of coating agents and preparation method thereof, belong to chemical field.The present invention takes 6 ~ 13 parts of sustained release component compounds, 5 ~ 10 portions of disintegrants, 7 ~ 14 parts of surfactants, 30 ~ 40 parts of Qu Li Shui ﹑, 8 ~ 15 parts of polyaminoester emulsions, 5 ~ 10 parts of tannic acid；In 20 ~ 25 DEG C, sustained release component compound, disintegrant, surfactant, deionized water are taken, is stirred, is heated to 110 ~ 120 DEG C, 1.5 ~ 2h is kept the temperature, 30 ~ 40 DEG C is cooled to, adds polyaminoester emulsion, tannic acid, it is stirred, is cooled to 20 ~ 25 DEG C to get coating agent.It is difficult to degrade in the soil that the present invention, which solves common coating agent at present, and chronic administration will destroy soil texture, and the problem that slow controlled-release effect is poor.
Description
Technical field
The invention belongs to chemical fields, and in particular to a kind of coating agent and preparation method thereof.
Background technology
Since traditional chemical fertilizer is easy to happen leaching, volatilization in the soil, the heavy losses of fertilizer nutrient are caused, and
And cause serious environmental pollution；On the other hand, it with the raising of labor cost, is needed in the growth course of plant more
It is secondary using conventional chemical fertilizers the cost of agricultural production to be remained high.Slow release fertilizer, which has, reduces fertilizer application frequency, improves fertilizer
The advantages of expecting utilization rate, reducing agriculture and forestry production cost has carried out development, the production of coated fertilizer in succession both at home and abroad.
Currently used coated fertilizer has polyolefin, ethylene and vinyl acetate copolymer, alkyd resin, sulphur powder, shell poly-
Sugar, polyvinyl alcohol, cardanol-aldehyde resin etc..Although the effect of control efficiency slow release can be played to a certain extent, tree
Fat is difficult degradation in the soil, and chronic administration will destroy soil texture, and these above-mentioned method generally existing slow controlled-release effects compared with
The defect of difference.Therefore, producing a kind of coating agent that can be solved the above problems has the prodigious market demand.
Invention content
The technical problems to be solved by the invention：It is difficult degradation, chronic administration in the soil for current common coating agent
Soil texture, and the problem that slow controlled-release effect is poor will be destroyed, a kind of coating agent and preparation method thereof is provided.
In order to solve the above technical problems, the present invention is using technical solution as described below：
A kind of coating agent, according to the mass fraction, including 5 ~ 10 disintegration Ji 5 ~ 10 parts of tannic acid of ﹑, 7 ~ 14 parts of surfactants, 25 ~
30 parts of deionized waters, which is characterized in that including following component：5 ~ 10 parts of sustained release component compounds, 8 ~ 15 polyaminoester emulsions；
The preparation method of the sustained release component compound：According to the mass fraction, take 20 ~ 40 parts of graphene oxides, 15 ~ 20 parts of shells poly-
Sugar-polyvinylpyrrolidone object, pulverizes and sieves, and takes sieving particle to be added to 35 ~ 45 parts of acetic acid solutions, pH is adjusted, at 40 ~ 50 DEG C
Under, suspension is made in ultrasonic 5 ~ 7h of lift-off processing, cooling, takes 15 ~ 25 parts of lignin, 10 ~ 15 parts of surfactant that it is added
In, it is stirred, stands to get sustained release component compound；
The preparation of polyaminoester emulsion：According to the mass fraction, 4 ~ 10 parts of dimer acid polyester dihydric alcohols are taken, are dried in vacuo, are added 5 ~ 12
Part polyisocyanate and 3 ~ 7 parts of isophorone diisocyanate control at 80 ~ 90 DEG C, are stirred to react 2 ~ 2.5h, it is cooled to 40 ~
50 DEG C, 5 ~ 8 parts of acetone are added, 8 ~ 17 parts of 1,4-butanediol, 10 ~ 15 parts of dihydromethyl propionic acids are stirred, and control temperature is 65
~ 70 DEG C, 3 ~ 10 parts of acetone are added in 3 ~ 4h of reaction or so, cooling, and 5 ~ 10 parts of triethylamines, 18 ~ 25 parts of water are added, and stirring is mixed
It closes to get polyaminoester emulsion.
The surfactant be alkyl phenol polyoxyethylene ether and sodium secondary alkyl sulfonate, in mass ratio 1:1 ~ 2 mixing to get
Surfactant.
Disintegrant used be sodium carboxymethyl starch and polyvinylpyrrolidone, in mass ratio 3:1 ~ 2 mixing is to get disintegration
Agent.
The preparation method of the coating agent includes the following steps：
（1）According to the mass fraction, take 6 ~ 13 parts of sustained release component compounds, 5 ~ 10 portions of disintegrants, 7 ~ 14 parts of surfactants, 30 ~
40 parts of Qu Li Shui ﹑, 8 ~ 15 parts of polyaminoester emulsions, 5 ~ 10 parts of tannic acid；
（2）In 20 ~ 25 DEG C, sustained release component compound, disintegrant, surfactant, deionized water are taken, is stirred, is heated to
110 ~ 120 DEG C, 1.5 ~ 2h is kept the temperature, 30 ~ 40 DEG C is cooled to, adds polyaminoester emulsion, tannic acid, be stirred, it is cooled to 20 ~
25 DEG C to get coating agent.
Compared with other methods, advantageous effects are the present invention：
Lignin used in the present invention is a kind of renewable, biodegradable good, relative hydrophobic bioabsorbable polymer material, coating at
This is relatively low, is easy to be decomposed by edaphon, and to soil nontoxicity, but it is easier to degrade relatively, leads to nutrients release
Period is shorter, so control sustained release performance is relatively poor, so therewith with graphene oxide and chitosan-polyvinylpyrrolidone object
Compounding, is made sustained release component compound, is allowed to slowly be degraded by microorganism in the soil, humus is converted into, to soil urease
Activity has certain inhibiting effect, can improve soil and promote fertilizer efficiency, while the adsorption sustained-release property also having, can preferably protect
It holds the validity of fertilizer and its slow release can be made；Contain a large amount of hydroxyl, carboxyl in graphene oxide, the groups such as ehter bond are assigned
Its good Fen San ﹑ compatibility etc. has been given, can see to form very strong interfacial interaction with polymeric matrix, while can also be by
Small molecule intercalation or stripping, are added into polymer, can effectively improve the chemical characteristic of polymer, and it is poly- can to give full play to shell
The excellent film forming of sugar compounds；Made polyaminoester emulsion is realized by the proportioning of isocyanates and polyalcohol to solidfied material
The adjusting of performance reaches the height adhesion to base material, while forming ionic interaction between tannic acid, improves
The degradation property of coated fertilizer has good biocompatibility.
Specific implementation mode
Sodium carboxymethyl starch：It is purchased from that Zhengzhou is abundant and food additives Co., Ltd.
Tannic acid：Henan Province is purchased from so Chemical Co., Ltd..
Sustained release component compound：According to the mass fraction, 20 ~ 40 parts of graphene oxides, 15 ~ 20 parts of chitosan-polyethylene are taken
Pyrrolidones object crushed 120 mesh sieve, and it is 4% ~ 8% acetic acid solution, control to take sieving particle to be added to 35 ~ 45 parts of volumetric concentrations
PH be 4 ~ 5, at 40 ~ 50 DEG C, ultrasonic 5 ~ 7h of lift-off processing, be made suspension, in 25 ~ 30 DEG C, take 15 ~ 25 parts of lignin, 10 ~
15 parts of surfactant is added thereto, and 20 ~ 30min is stirred with 180 ~ 200r/min, stands 30 ~ 40min to get sustained release
Ingredient compound.
The preparation of polyaminoester emulsion：According to the mass fraction, 4 ~ 10 parts of dimer acid polyester dihydric alcohols are taken, are dried in vacuo, are added 5
~ 12 parts of polyisocyanate and 3 ~ 7 parts of isophorone diisocyanate, temperature control are stirred to react 2 ~ 2.5h at 80 ~ 90 DEG C, are cooled to
40 ~ 50 DEG C, 5 ~ 8 parts of acetone are added, 8 ~ 17 parts of Isosorbide-5-Nitrae-butanediols, 10 ~ 15 parts of dihydromethyl propionic acids are stirred, temperature control is 65
~ 70 DEG C, 3 ~ 4h of reaction or so is added 3 ~ 10 parts of acetone, is cooled to 25 ~ 30 DEG C, 5 ~ 10 parts of triethylamines, 18 ~ 25 parts of water are added, with
110 ~ 120r/min stirs to get polyaminoester emulsion.
A kind of preparation method of coating agent includes the following steps：
（1）According to the mass fraction, 6 ~ 13 parts of sustained release component compounds, 5 ~ 10 parts of sodium carboxymethyl starches, 2 ~ 6 parts of polyvinyl pyrroles are taken
7 ~ 14 parts of surfactants of Wan Tong ﹑, 30 ~ 40 parts of Qu Li Shui ﹑, 8 ~ 15 parts of polyaminoester emulsions, 5 ~ 10 parts of tannic acid；
（2）In 20 ~ 25 DEG C, take sustained release component compound, sodium carboxymethyl starch, Ju Yi Xi Bi Ka Wan Tong ﹑ surfactants, go from
Sub- water, is added in reaction kettle, after being uniformly mixed, is heated to 110 ~ 120 DEG C, keeps the temperature 1.5 ~ 2h, be cooled to 30 ~ 40 DEG C,
8 ~ 15 parts of polyaminoester emulsions, 5 ~ 10 parts of tannic acid are added, are uniformly mixed, are cooled to 20 ~ 25 DEG C to get coating agent；
In use, taking coating agent, sprayed toward chemical fertilizer granule surface, aeration-drying, until forming one layer of uniform separation membrane outside particle
Afterwards, cooling, sieving 200 mesh sieve, you can.
Sodium carboxymethyl starch：It is purchased from that Zhengzhou is abundant and food additives Co., Ltd.
Tannic acid：Henan Province is purchased from so Chemical Co., Ltd..
Sustained release component compound：According to the mass fraction, 20 parts of graphene oxides, 15 parts of chitosan-polyvinylpyrrolidines are taken
Ketone object crushed 120 mesh sieve, and it is 4%% acetic acid solution to take sieving particle to be added to 35 parts of volumetric concentrations, and control pH is 4, at 40 DEG C
Under, ultrasonic lift-off processing 5h is made suspension and takes 15 parts of lignin, 10 parts of surfactant to be added thereto in 25 DEG C, with
180r/min is stirred 20min, stands 30min to get sustained release component compound.
The preparation of polyaminoester emulsion：According to the mass fraction, 4 parts of dimer acid polyester dihydric alcohols are taken, are dried in vacuo, are added 5 parts
Polyisocyanate and 3 parts of isophorone diisocyanate, temperature control are stirred to react 2h at 80 DEG C, are cooled to 40 DEG C, are added 5 parts
Acetone, 8 parts of 1,4-butanediol, 10 parts of dihydromethyl propionic acids, is stirred, and for temperature control at 65 DEG C, reaction 3h or so is added 3 part third
Ketone is cooled to 25 DEG C, and 5 parts of triethylamines, 18 parts of water are added, and is stirred to get polyaminoester emulsion with 110r/min.
A kind of preparation method of coating agent includes the following steps：
（1）According to the mass fraction, 6 parts of sustained release component compounds, 5 parts of sodium carboxymethyl starches, 2 parts of 7 parts of Ju Yi Xi Bi Ka Wan Tong ﹑ are taken
Surfactant, 30 parts of Qu Li Shui ﹑, 8 parts of polyaminoester emulsions, 5 parts of tannic acid；
（2）In 20 DEG C, sustained release component compound, sodium carboxymethyl starch, Ju Yi Xi Bi Ka Wan Tong ﹑ surfactants, deionization are taken
Water is added in reaction kettle, after being uniformly mixed, is heated to 110 DEG C, is kept the temperature 1.5h, be cooled to 30 DEG C, is added 8 parts and is gathered
Urethane lotion, 5 parts of tannic acid, are uniformly mixed, and are cooled to 20 DEG C to get coating agent；
In use, taking coating agent, sprayed toward chemical fertilizer granule surface, aeration-drying, until forming one layer of uniform separation membrane outside particle
Afterwards, cooling, sieving 200 mesh sieve, you can.
Sodium carboxymethyl starch：It is purchased from that Zhengzhou is abundant and food additives Co., Ltd.
Tannic acid：Henan Province is purchased from so Chemical Co., Ltd..
Sustained release component compound：According to the mass fraction, 40 parts of graphene oxides, 20 parts of chitosan-polyvinylpyrrolidines are taken
Ketone object crushed 120 mesh sieve, and it is 8% acetic acid solution to take sieving particle to be added to 45 parts of volumetric concentrations, and control pH is 5, at 50 DEG C
Under, ultrasonic lift-off processing 7h is made suspension and takes 25 parts of lignin, 15 parts of surfactant to be added thereto in 30 DEG C, with
200r/min is stirred 30min, stands 40min to get sustained release component compound.
The preparation of polyaminoester emulsion：According to the mass fraction, 10 parts of dimer acid polyester dihydric alcohols are taken, are dried in vacuo, are added 12
Part polyisocyanate and 7 parts of isophorone diisocyanate, temperature control are stirred to react 2.5h at 90 DEG C, are cooled to 50 DEG C, are added 8
Part acetone, 17 parts of 1,4-butanediol, 15 parts of dihydromethyl propionic acids are stirred, and for temperature control at 70 DEG C, reaction 4h or so is added 10
Part acetone, is cooled to 30 DEG C, and 10 parts of triethylamines, 25 parts of water are added, and is stirred to get polyaminoester emulsion with 120r/min.
A kind of preparation method of coating agent includes the following steps：
（1）According to the mass fraction, 13 parts of sustained release component compounds, 10 parts of sodium carboxymethyl starches, 6 parts of Ju Yi Xi Bi Ka Wan Tong ﹑ are taken
14 parts of surfactants, 40 parts of Qu Li Shui ﹑, 15 parts of polyaminoester emulsions, 10 parts of tannic acid；
（2）In 25 DEG C, sustained release component compound, sodium carboxymethyl starch, Ju Yi Xi Bi Ka Wan Tong ﹑ surfactants, deionization are taken
Water is added in reaction kettle, after being uniformly mixed, is heated to 120 DEG C, is kept the temperature 2h, be cooled to 40 DEG C, add 15 parts of poly- ammonia
Ester lotion, 10 parts of tannic acid, are uniformly mixed, and are cooled to 25 DEG C to get coating agent；
In use, taking coating agent, sprayed toward chemical fertilizer granule surface, aeration-drying, until forming one layer of uniform separation membrane outside particle
Afterwards, cooling, sieving 200 mesh sieve, you can.
Sodium carboxymethyl starch：It is purchased from that Zhengzhou is abundant and food additives Co., Ltd.
Tannic acid：Henan Province is purchased from so Chemical Co., Ltd..
Sustained release component compound：According to the mass fraction, 30 parts of graphene oxides, 17 parts of chitosan-polyvinylpyrrolidines are taken
Ketone object crushed 120 mesh sieve, and it is 6% acetic acid solution to take sieving particle to be added to 40 parts of volumetric concentrations, and control pH is 4, at 45 DEG C
Under, ultrasonic lift-off processing 6h is made suspension and takes 20 parts of lignin, 13 parts of surfactant to be added thereto in 27 DEG C, with
190r/min is stirred 25min, stands 35min to get sustained release component compound.
The preparation of polyaminoester emulsion：According to the mass fraction, 7 parts of dimer acid polyester dihydric alcohols are taken, are dried in vacuo, are added 8 parts
Polyisocyanate and 5 parts of isophorone diisocyanate, temperature control are stirred to react 2h at 85 DEG C, are cooled to 45 DEG C, are added 7 parts
Acetone, 12 parts of 1,4-butanediol, 13 parts of dihydromethyl propionic acids, is stirred, and for temperature control at 67 DEG C, reaction 3h or so is added 6 part third
Ketone is cooled to 27 DEG C, and 8 parts of triethylamines, 21 parts of water are added, and is stirred to get polyaminoester emulsion with 115r/min.
A kind of preparation method of coating agent includes the following steps：
（1）According to the mass fraction, 10 parts of sustained release component compounds, 7 parts of sodium carboxymethyl starches, 4 parts of Ju Yi Xi Bi Ka Wan Tong ﹑ 11 are taken
Part surfactant, 35 parts of Qu Li Shui ﹑, 12 parts of polyaminoester emulsions, 7 parts of tannic acid；
（2）In 23 DEG C, sustained release component compound, sodium carboxymethyl starch, Ju Yi Xi Bi Ka Wan Tong ﹑ surfactants, deionization are taken
Water is added in reaction kettle, after being uniformly mixed, is heated to 115 DEG C, is kept the temperature 1.7h, be cooled to 35 DEG C, is added 12 parts and is gathered
Urethane lotion, 8 parts of tannic acid, are uniformly mixed, and are cooled to 23 DEG C to get coating agent；
In use, taking coating agent, sprayed toward chemical fertilizer granule surface, aeration-drying, until forming one layer of uniform separation membrane outside particle
Afterwards, cooling, sieving 200 mesh sieve, you can.
Comparative example 1：It is essentially identical with the preparation method of embodiment 2, it has only the difference is that lacking sustained release component compound.
Comparative example 2：It is essentially identical with the preparation method of embodiment 2, it has only the difference is that lacking polyaminoester emulsion.
Comparative example 3：The coating agent of company of Hefei City production.
The coating agent of coating agent and comparative example obtained by above-described embodiment is subjected to performance detection, specific testing result is shown in Table 1.
Table 1：
| Test event | Embodiment 1 | Embodiment 2 | Embodiment 3 | Comparative example 1 | Comparative example 2 | Comparative example 3 |
| Leaf mustard per mu yield（kg） | 3920 | 3917 | 3913 | 3168 | 3249 | 3112~3126 |
| 7 days degradation rate %（Soil buries method） | 90 | 92 | 90 | 100 | 82~86 | 40~45 |
| Soil hardening situation after one month | Without hardened | Without hardened | Without hardened | Without hardened | Without hardened | It is serious hardened |
| Fertilizer releasing period（It） | 175 | 170 | 172 | 90~96 | 168 | 80~88 |
In summary, more preferably, be worth promoting the present invention gained coating agent comprehensive performance use.
Claims (4)
1. a kind of coating agent, according to the mass fraction, including 5 ~ 10 disintegration Ji 5 ~ 10 parts of tannic acid of ﹑, 7 ~ 14 parts of surfactants, 25
~ 30 parts of deionized waters, which is characterized in that including following component：5 ~ 10 parts of sustained release component compounds, 8 ~ 15 polyaminoester emulsions；
The preparation method of the sustained release component compound：According to the mass fraction, take 20 ~ 40 parts of graphene oxides, 15 ~ 20 parts of shells poly-
Sugar-polyvinylpyrrolidone object, pulverizes and sieves, and takes sieving particle to be added to 35 ~ 45 parts of acetic acid solutions, pH is adjusted, at 40 ~ 50 DEG C
Under, suspension is made in ultrasonic 5 ~ 7h of lift-off processing, cooling, takes 15 ~ 25 parts of lignin, 10 ~ 15 parts of surfactant that it is added
In, it is stirred, stands to get sustained release component compound；
The preparation of polyaminoester emulsion：According to the mass fraction, 4 ~ 10 parts of dimer acid polyester dihydric alcohols are taken, are dried in vacuo, are added 5 ~ 12
Part polyisocyanate and 3 ~ 7 parts of isophorone diisocyanate control at 80 ~ 90 DEG C, are stirred to react 2 ~ 2. 5h, are cooled to 40
~ 50 DEG C, 5 ~ 8 parts of acetone are added, 8 ~ 17 parts of Isosorbide-5-Nitrae-butanediols, 10 ~ 15 parts of dihydromethyl propionic acids are stirred, and control temperature
At 65 ~ 70 DEG C, 3 ~ 10 parts of acetone are added in 3 ~ 4h of reaction or so, cooling, and 5 ~ 10 parts of triethylamines, 18 ~ 25 parts of water, stirring is added
Mixing is to get polyaminoester emulsion.
2. coating agent according to claim 1, which is characterized in that the surfactant be alkyl phenol polyoxyethylene ether with it is secondary
Sodium alkyl sulfonate, in mass ratio 1:1 ~ 2 mixing is to get surfactant.
3. coating agent according to claim 1, which is characterized in that disintegrant used is sodium carboxymethyl starch and polyvinyl pyrrole
Alkanone, in mass ratio 3:1 ~ 2 mixing is to get disintegrant.
4. a kind of preparation method of the coating agent as described in claim 1 ~ 3 any one, which is characterized in that the preparation method includes
Following steps：
（1）According to the mass fraction, take 6 ~ 13 parts of sustained release component compounds, 5 ~ 10 portions of disintegrants, 7 ~ 14 parts of surfactants, 30 ~
40 parts of Qu Li Shui ﹑, 8 ~ 15 parts of polyaminoester emulsions, 5 ~ 10 parts of tannic acid；
（2）In 20 ~ 25 DEG C, sustained release component compound, disintegrant, surfactant, deionized water are taken, is stirred, is heated to
110 ~ 120 DEG C, 1.5 ~ 2h is kept the temperature, 30 ~ 40 DEG C is cooled to, adds polyaminoester emulsion, tannic acid, be stirred, it is cooled to 20 ~
25 DEG C to get coating agent.
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| CN201810398223.6A CN108516889A (en) | 2018-04-28 | 2018-04-28 | A kind of coating agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810398223.6A CN108516889A (en) | 2018-04-28 | 2018-04-28 | A kind of coating agent and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115336455A (en) * | 2021-12-29 | 2022-11-15 | 浙江省农业科学院 | Single-season late rice one-time fertilization method and controlled-release compound fertilizer used by same |
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Application publication date: 20180911 |