CN110591730A - Preparation method of chitosan oligosaccharide biochar liquid mulching film - Google Patents
Preparation method of chitosan oligosaccharide biochar liquid mulching film Download PDFInfo
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- CN110591730A CN110591730A CN201910858228.7A CN201910858228A CN110591730A CN 110591730 A CN110591730 A CN 110591730A CN 201910858228 A CN201910858228 A CN 201910858228A CN 110591730 A CN110591730 A CN 110591730A
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- biochar
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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
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/40—Soil-conditioning materials or soil-stabilising materials containing mixtures of inorganic and organic compounds
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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
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K17/00—Soil-conditioning materials or soil-stabilising materials
- C09K17/52—Mulches
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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
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2101/00—Agricultural use
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Protection Of Plants (AREA)
Abstract
The invention discloses a preparation method of a chitosan oligosaccharide biochar liquid mulching film, which belongs to the technical field of agricultural production and comprises the specific preparation steps of (1) mixing 1 part of ~ parts of chitosan oligosaccharide, 5 parts of biochar, 5 parts of ~ parts of PVA, 2 parts of ~ parts of sodium carboxymethyl cellulose, 0.5 part of ~ parts of glutaraldehyde, 0.5 part of ~ parts of boric acid and 0.5 part of ~ parts of boric acid by using clear water, keeping the solid content at 20 ~ parts, carrying out reaction in a closed reaction kettle, and (2) naturally cooling the reacted liquid to room temperature and then carrying out sealed filling storage.
Description
Technical Field
The invention relates to the technical field of agricultural production, in particular to a preparation method of a chitosan oligosaccharide biochar liquid mulching film.
Background
Chitosan oligosaccharide, also called chitosan oligosaccharide, oligomeric chitosan, is an oligosaccharide product with polymerization degree of 2 ~ 20, which is obtained by degrading chitosan through special biological enzyme technology (or using chemical degradation and microwave degradation technology), the molecular weight is less than or equal to 3200Da, and the product is a low molecular weight product with better water solubility, large functional action and high biological activity.
Biochar is a charcoal used as a soil conditioner, can help plant growth, can be applied to agricultural use and carbon collection and storage, and is different from the traditional charcoal generally used as fuel.
Mulching is a measure of covering the ground surface with an agricultural plastic film. The soil moisture control agent has the effects of reducing raindrop impact, preventing scouring and skinning, effectively reducing soil moisture evaporation, preserving soil moisture on dry grounds, improving soil moisture after raining, promoting water absorption and growth and development of crops, improving the utilization efficiency of soil moisture, keeping proper temperature and humidity of soil, slowing down the ground temperature, prolonging the duration time, facilitating the decomposition and decomposition of fertilizers and improving the soil fertility. At present, mulching films used in agriculture are mostly made of plastics and are not degradable, and if the mulching films cannot be recovered and treated in time after being used, the residual quantity of the mulching films in fields is increased, so that white pollution is caused, the pollution to the environment is avoided, the normal growth and germination of crop seeds are influenced, and the great influence is caused on the agriculture.
Disclosure of Invention
The invention aims to solve the problems and provide a preparation method of a chitosan oligosaccharide biochar liquid mulching film.
The invention achieves the above purpose through the following technical scheme:
a preparation method of a chitosan oligosaccharide biochar liquid mulching film comprises the following specific preparation steps:
(1) 1 part of ~ 5 parts of chitosan oligosaccharide, 5 parts of biochar, 5 parts of ~ 20 parts of PVA, 2 parts of ~ 10 parts of PVA, 0.5 part of sodium carboxymethylcellulose, ~ 2 parts of glutaraldehyde, 0.5 part of ~ 2 parts of glutaraldehyde and 0.5 part of ~ 2 parts of boric acid are mixed by using clear water, the solid content is kept to be 20 ~ 40 parts, and the mixture is reacted in a closed reaction kettle;
(2) and naturally cooling the reacted liquid to room temperature, and sealing, filling and storing.
Preferably, the concentration of the chitosan oligosaccharide is 3 ~ 5 parts.
Preferably, the biochar concentration is 5 ~ 20 parts.
Preferably, the reaction temperature is 70 ℃ ~ 90 ℃ and the reaction time is 2h ~ 3h when the reaction is carried out in a closed reaction kettle.
Preferably, the material consists of the following raw materials in parts by weight: chitosan oligosaccharide: 3 parts of biochar: 10 parts of PVA: 5 parts, sodium carboxymethyl cellulose: 1 part of glutaraldehyde: 1 part of boric acid: 1 part.
Preferably, the material consists of the following raw materials in parts by weight: chitosan oligosaccharide: 4 parts of biochar: 15 parts of PVA: 5 parts, sodium carboxymethyl cellulose: 1 part of glutaraldehyde: 1 part of boric acid: 1 part.
Preferably, the material consists of the following raw materials in parts by weight: chitosan oligosaccharide: 5 parts of biochar: 20 parts of PVA: 8 parts, sodium carboxymethyl cellulose: 1.5 parts of glutaraldehyde: 1.5 parts of boric acid: 1.5 parts.
The application method comprises diluting the liquid mulching film with water to 10 ~ 20 times of volume, and spraying with a sprayer to the land surface to be covered with the mulching film after sowing in an amount of 20 ~ 40 kg/mu.
The invention has the beneficial effects that: the liquid mulching film produced by the full biological material has the characteristics of degradability and has the functions of heat absorption, temperature increase, soil moisture preservation and seedling preservation of the plastic mulching film; the soil has fertilizer effect and drug effect and strong adhesive capacity, and soil particles can be connected into ideal aggregates so as to improve the permeability of soil; can eliminate the 'white pollution' problem, reduce the land pollution, simultaneously has the physiological activity, improves the crop yield, and has simple and convenient manufacture and convenient use.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
a preparation method of a chitosan oligosaccharide biochar liquid mulching film comprises the following specific preparation steps of (1) blending 2 parts of chitosan oligosaccharide, 10 parts of biochar, 5 parts of PVA, 1 part of sodium carboxymethylcellulose, 1 part of glutaraldehyde and 1 part of boric acid by using clear water, keeping the content of solid matters to be 20 ~ 40 parts, carrying out reaction in a closed reaction kettle at the reaction temperature of 70 ℃ for 2 hours, and (2) naturally cooling the reacted liquid to room temperature, sealing, filling and storing.
When the liquid mulching film is used, the liquid mulching film is diluted to 10 times of the volume by adding water, and is sprayed to the surface of the land needing to be covered with the mulching film after sowing by using a sprayer, wherein the spraying amount is 20 kg/mu.
Example two:
a preparation method of a chitosan oligosaccharide biochar liquid mulching film comprises the steps of (1) blending 4 parts of chitosan oligosaccharide, 15 parts of biochar, 8 parts of PVA, 1.5 parts of sodium carboxymethylcellulose, 1.5 parts of glutaraldehyde and 1.5 parts of boric acid by using clean water, keeping the content of solid matters to be 20 ~ 40 parts, reacting in a closed reaction kettle at the reaction temperature of 80 ℃ for 3 hours, and (2) naturally cooling the reacted liquid to room temperature, sealing, filling and storing.
When the liquid mulching film is used, the liquid mulching film is diluted to 15 times of volume by adding water, and is sprayed to the surface of the land needing to be covered with the mulching film after sowing by using a sprayer, wherein the spraying amount is 30 kg/mu.
Example three:
a preparation method of a chitosan oligosaccharide biochar liquid mulching film comprises the steps of (1) blending 5 parts of chitosan oligosaccharide, 20 parts of biochar, 10 parts of PVA, 2 parts of sodium carboxymethylcellulose, 2 parts of glutaraldehyde and 2 parts of boric acid by using clear water, keeping the solid content at 20 ~ 40 parts, reacting in a closed reaction kettle at the reaction temperature of 90 ℃ for 2 hours, and (2) naturally cooling the reacted liquid to room temperature, sealing, filling and storing.
When the liquid mulching film is used, the liquid mulching film is diluted to 20 times of the volume by adding water, and is sprayed to the surface of the land needing to be covered with the mulching film after sowing by using a sprayer, wherein the spraying amount is 30 kg/mu.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (7)
1. A preparation method of a chitosan oligosaccharide biochar liquid mulching film is characterized by comprising the following steps: the preparation method comprises the following specific steps:
1 part of ~ 5 parts of chitosan oligosaccharide, 5 parts of biochar, 5 parts of ~ 20 parts of PVA, 2 parts of ~ 10 parts of PVA, 0.5 part of sodium carboxymethylcellulose, ~ 2 parts of glutaraldehyde, 0.5 part of ~ 2 parts of glutaraldehyde and 0.5 part of ~ 2 parts of boric acid are mixed by using clear water, the solid content is kept to be 20 ~ 40 parts, and the mixture is reacted in a closed reaction kettle;
(2) and naturally cooling the reacted liquid to room temperature, and sealing, filling and storing.
2. The method for preparing the chitosan oligosaccharide biochar liquid mulching film according to claim 1, wherein the concentration of the chitosan oligosaccharide is 3 ~ 5 parts.
3. The method for preparing the chitosan oligosaccharide biochar liquid mulching film according to claim 1, wherein the biochar concentration is 5 ~ 20 parts.
4. The preparation method of the chitosan oligosaccharide biochar liquid mulching film according to claim 1, which is characterized in that the reaction temperature is 70 ℃ and ~ 90 ℃ and the reaction time is 2h and ~ 3h when the reaction is carried out in a closed reaction kettle.
5. The preparation method of the chitosan oligosaccharide biochar liquid mulching film according to claim 1, which is characterized by comprising the following steps of: the material consists of the following raw materials in parts by weight: chitosan oligosaccharide: 3 parts of biochar: 10 parts of PVA: 5 parts, sodium carboxymethyl cellulose: 1 part of glutaraldehyde: 1 part of boric acid: 1 part.
6. The preparation method of the chitosan oligosaccharide biochar liquid mulching film according to claim 1, which is characterized by comprising the following steps of: the material consists of the following raw materials in parts by weight: chitosan oligosaccharide: 4 parts of biochar: 15 parts of PVA: 5 parts, sodium carboxymethyl cellulose: 1 part of glutaraldehyde: 1 part of boric acid: 1 part.
7. The preparation method of the chitosan oligosaccharide biochar liquid mulching film according to claim 1, which is characterized by comprising the following steps of: the material consists of the following raw materials in parts by weight: chitosan oligosaccharide: 5 parts of biochar: 20 parts of PVA: 8 parts, sodium carboxymethyl cellulose: 1.5 parts of glutaraldehyde: 1.5 parts of boric acid: 1.5 parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910858228.7A CN110591730A (en) | 2019-09-11 | 2019-09-11 | Preparation method of chitosan oligosaccharide biochar liquid mulching film |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910858228.7A CN110591730A (en) | 2019-09-11 | 2019-09-11 | Preparation method of chitosan oligosaccharide biochar liquid mulching film |
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| CN110591730A true CN110591730A (en) | 2019-12-20 |
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Citations (8)
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|---|---|---|---|---|
| WO2006085260A2 (en) * | 2005-02-08 | 2006-08-17 | Steven Buono | Spray-on film for application to soil |
| CN101161718A (en) * | 2007-11-27 | 2008-04-16 | 中国科学院长春应用化学研究所 | Biological degradation liquid film and preparation method |
| CN102477304A (en) * | 2010-11-27 | 2012-05-30 | 中国科学院兰州化学物理研究所 | Degradable composite liquid mulch film and preparation method thereof |
| CN103865216A (en) * | 2012-12-14 | 2014-06-18 | 中国科学院沈阳应用生态研究所 | Multifunctional degradable liquid mulch film and preparation method and usage method thereof |
| CN104448468A (en) * | 2014-11-06 | 2015-03-25 | 国家林业局竹子研究开发中心 | Biochar-based plastic film material and preparation method thereof |
| CN106947157A (en) * | 2017-02-27 | 2017-07-14 | 河海大学 | A kind of degradable nano water conservation mulch film and preparation method thereof |
| CN108396559A (en) * | 2018-02-05 | 2018-08-14 | 广西大学 | A kind of bagasse base film and preparation method thereof |
| CN109197283A (en) * | 2018-09-08 | 2019-01-15 | 佛山市森昂生物科技有限公司 | A kind of preparation method of degradable water conservation mulch |
-
2019
- 2019-09-11 CN CN201910858228.7A patent/CN110591730A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006085260A2 (en) * | 2005-02-08 | 2006-08-17 | Steven Buono | Spray-on film for application to soil |
| CN101161718A (en) * | 2007-11-27 | 2008-04-16 | 中国科学院长春应用化学研究所 | Biological degradation liquid film and preparation method |
| CN102477304A (en) * | 2010-11-27 | 2012-05-30 | 中国科学院兰州化学物理研究所 | Degradable composite liquid mulch film and preparation method thereof |
| CN103865216A (en) * | 2012-12-14 | 2014-06-18 | 中国科学院沈阳应用生态研究所 | Multifunctional degradable liquid mulch film and preparation method and usage method thereof |
| CN104448468A (en) * | 2014-11-06 | 2015-03-25 | 国家林业局竹子研究开发中心 | Biochar-based plastic film material and preparation method thereof |
| CN106947157A (en) * | 2017-02-27 | 2017-07-14 | 河海大学 | A kind of degradable nano water conservation mulch film and preparation method thereof |
| CN108396559A (en) * | 2018-02-05 | 2018-08-14 | 广西大学 | A kind of bagasse base film and preparation method thereof |
| CN109197283A (en) * | 2018-09-08 | 2019-01-15 | 佛山市森昂生物科技有限公司 | A kind of preparation method of degradable water conservation mulch |
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