CN112225627A - Preparation process and application of itaconate urea sustained-release material - Google Patents
Preparation process and application of itaconate urea sustained-release material Download PDFInfo
- Publication number
- CN112225627A CN112225627A CN202011076455.3A CN202011076455A CN112225627A CN 112225627 A CN112225627 A CN 112225627A CN 202011076455 A CN202011076455 A CN 202011076455A CN 112225627 A CN112225627 A CN 112225627A
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- CN
- China
- Prior art keywords
- urea
- slow
- release material
- itaconate
- preparation process
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- C05G5/37—Layered or coated, e.g. dust-preventing coatings layered or coated with a polymer
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
-
- 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
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/40—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting fertiliser dosage or release rate; for affecting solubility
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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
- C08F222/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical and containing at least one other carboxyl radical in the molecule; Salts, anhydrides, esters, amides, imides, or nitriles thereof
- C08F222/02—Acids; Metal salts or ammonium salts thereof, e.g. maleic acid or itaconic acid
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Fertilizers (AREA)
Abstract
The invention discloses a preparation process and application of an itaconic acid urea slow-release material. Provides a slow-release base material with simple process and stable performance. The material adopts itaconic acid, acrylic acid, urea and other raw materials, and can prepare a finished product through a surface film forming reaction in a methanol organic phase. The slow release material can be widely applied to release systems of agricultural fertilizers and the like, effectively improves the growth of rape roots and improves the yield of rape.
Description
Technical Field
The invention relates to the technical field of agricultural fertilizers, in particular to a preparation process and application of an itaconic acid urea slow-release material.
Background
However, since plants cannot absorb all soluble salts in the fertilizer in a short time, more than half of the fertilizer nutrients cannot be utilized by the plants, but are washed by rainwater and irrigation water and lost to the surrounding environment. The loss of the fertilizer causes great economic loss and serious environmental pollution to overcome the defects of the fertilizer, and an important way is to develop and use the slow-release fertilizer. The research discusses the effect and mechanism of the slow releasing material of the itaconate urea on rape through the measurement of the nutrient absorption state, light property, quality, yield and other indexes of rape in different periods. Can better promote the growth of rape roots, improve the rape yield, realize stable solidification, effectively reduce the solidified volatile components and ensure that the whole fertilization process is green and environment-friendly.
Disclosure of Invention
In order to solve the technical problems, the invention provides a preparation process and application of an itaconate urea slow-release material.
The raw materials of the slow release material provided by the invention mainly comprise itaconic acid, acrylic acid, urea and the like.
The raw materials of itaconic acid, acrylic acid, urea and the like are adopted, and the urea slow-release material can be prepared through surface film forming reaction in a methanol organic phase. The method comprises the following specific steps:
1. dissolving 10-15% of itaconic acid, 6-8% of acrylic acid and 10-14% of urea in methanol, adding 1% of ammonium persulfate, 1% of tetramethyl ethylene diamine and 1.5% of N, N-methylene bisacrylamide,
2. placing in an oven at 80 ℃ for 5h to obtain the slow-release material.
Compared with the prior art, the invention has the advantages that:
1. in a pot experiment, the chlorophyll content in rape leaves is obviously increased, the growth of roots and stems can be promoted, the growth and development conditions of rape can be obviously improved, and the yield of rape can be increased.
2. For accumulation and distribution of dry matters, the application effect of the slow release fertilizer is obviously better than that of common fertilizer treatment, and the indexes of plant height, stem thickness, branch parts and the like of the slow release fertilizer are obviously more than those of common fertilizer treatment in economic characters, so that the aims of saving labor and saving time are fulfilled.
Detailed Description
The present invention will be further described with reference to specific examples so that those skilled in the art may better understand the present invention, but the present invention is not limited thereto.
Example 1:
a preparation process and an application method of an itaconate urea slow-release material comprise the following steps:
dissolving 10% of itaconic acid, 7% of acrylic acid and 12% of urea in methanol, adding 1% of ammonium persulfate, 1% of tetramethylethylenediamine and 1.5% of N, N-methylene-bisacrylamide, and placing in an oven at 80 ℃ for 5 hours to obtain the slow-release material.
Example 2:
a preparation process and an application method of an itaconate urea slow-release material comprise the following steps:
dissolving 13% of itaconic acid, 6% of acrylic acid and 13% of urea in methanol, adding 1% of ammonium persulfate, 1% of tetramethylethylenediamine and 1.5% of N, N-methylene-bisacrylamide, and placing in an oven at 80 ℃ for 5 hours to obtain the slow-release material.
Example 3:
a preparation process and an application method of an itaconate urea slow-release material comprise the following steps:
dissolving 14% of itaconic acid, 8% of acrylic acid and 10% of urea in methanol, adding 1% of ammonium persulfate, 1% of tetramethylethylenediamine and 1.5% of N, N-methylene-bisacrylamide, and placing in an oven at 80 ℃ for 5 hours to obtain the slow-release material.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (3)
1. A process for preparing the slow-releasing coated antacid urea material features that the raw materials including itaconic acid, acrylic acid and urea are used to prepare the slow-releasing urea material in the organic phase of methanol through surface filming reaction.
2. A preparation process and application of an itaconate urea slow release material as claimed in claim 1, wherein the specific steps include dissolving 10% -15% of itaconic acid, 6% -8% of acrylic acid, and 10% -14% of urea in methanol, adding 1% of ammonium persulfate, 1% of tetramethylethylenediamine and 1.5% of N, N-methylene bisacrylamide, and placing in an oven at 80 ℃ for 5h to obtain the slow release material.
3. The itaconate urea slow-release material as claimed in claim 1, wherein the material can significantly promote the growth of rape roots and increase the rape yield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011076455.3A CN112225627A (en) | 2020-10-10 | 2020-10-10 | Preparation process and application of itaconate urea sustained-release material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011076455.3A CN112225627A (en) | 2020-10-10 | 2020-10-10 | Preparation process and application of itaconate urea sustained-release material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112225627A true CN112225627A (en) | 2021-01-15 |
Family
ID=74111773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011076455.3A Withdrawn CN112225627A (en) | 2020-10-10 | 2020-10-10 | Preparation process and application of itaconate urea sustained-release material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112225627A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023142473A1 (en) * | 2022-01-27 | 2023-08-03 | 青岛农业大学 | Nitrogen fertilizer synergist, preparation method, and application |
-
2020
- 2020-10-10 CN CN202011076455.3A patent/CN112225627A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023142473A1 (en) * | 2022-01-27 | 2023-08-03 | 青岛农业大学 | Nitrogen fertilizer synergist, preparation method, and application |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210115 |