CN110870429A - Green agricultural mulching film and preparation method thereof - Google Patents
Green agricultural mulching film and preparation method thereof Download PDFInfo
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- CN110870429A CN110870429A CN201811027638.9A CN201811027638A CN110870429A CN 110870429 A CN110870429 A CN 110870429A CN 201811027638 A CN201811027638 A CN 201811027638A CN 110870429 A CN110870429 A CN 110870429A
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- mulching film
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- agricultural mulching
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
- A01G13/02—Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
- A01G13/0256—Ground coverings
- A01G13/0268—Mats or sheets, e.g. nets or fabrics
- A01G13/0275—Films
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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
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D197/00—Coating compositions based on lignin-containing materials
- C09D197/02—Lignocellulosic material, e.g. wood, straw or bagasse
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Environmental Sciences (AREA)
- Protection Of Plants (AREA)
Abstract
The invention discloses a green agricultural mulching film which is prepared from the following raw materials in parts by mass: 50-70 parts of plant fiber, 15-25 parts of rubber powder and 15-25 parts of paraffin. And provides a preparation method of the green agricultural mulching film, which comprises the following steps: mixing and stirring plant fiber and rubber powder uniformly, putting the mixture into a material well as a bottom material, and then conveying the bottom material to a feeding box; spraying the bottom material on the fourdrinier wire by adopting a metering pump according to gram weight; using a metering pump to spray paraffin serving as a fabric to the fourdrinier wire and mixing the fabric with the bottom material according to the proportion; and then sequentially passing through a press, a dryer, a ring doubling machine, a splitting machine, a coating machine and a super calender to obtain the green agricultural mulching film.
Description
Technical Field
The invention relates to the technical field of mulching film equipment, in particular to a green agricultural mulching film and a preparation method thereof.
Background
With the rapid development of the plastic industry, in the aspect of agriculture, due to the use of the agricultural mulching film, the temperature and the humidity of soil are effectively controlled, the loss of water and nutrient substances is reduced, the high yield and the stability of crops are promoted, and the benefit of agricultural production is increased. Agricultural plastic mulch film began to be used in the middle of the 20 th century. Japan was first applied to strawberry production in 1955 and promoted. In the early 60 s, the application of agricultural plastic mulching films in crops such as vegetables, fruits, coffee, tobacco, cotton and the like begins to achieve good effects in countries such as France, Italy and the United states. Since the introduction of plastic agricultural plastic mulching technology from Japan in 1978, the plastic mulching technology is rapidly popularized in domestic agricultural production, and the crop yield in China is greatly increased. However, most of the plastic mulching films are polyethylene having a molecular weight of several tens to several hundreds of thousands, and they are hardly degraded in nature. The fragments of the mulching film can form a negative interlayer in the soil, so that the flow of water, gas, fertilizer and the like in the soil is blocked, the soil structure is hardened, the ecological environment is seriously damaged, and white pollution is caused. Therefore, the research on degradable mulching films has been carried out in developed countries such as japan, usa, italy, france, germany, canada, and the like, successively at the end of the last century.
The degradable mulching film produced by the prior art comprises: the biodegradable mulching film is prepared from plant fibers, such as needle wood, hardwood, hemp, reed and other natural raw materials, such as paper mulching film and hemp mulching film researched and developed in Japan. The paper mulching film can be completely degraded by soil microorganisms without pollution, but has poor wind and rain resistance, is easy to damage, greatly reduces the tearing strength after meeting rain, is not easy to mechanically lay the film, is expensive, and has less use amount in the production at present. At the end of the 20 th century, agricultural bast fiber mulching films were developed in japan, mainly using paper pulp and bast fibers as raw materials, and having a toughness greatly enhanced as compared with paper mulching films, improving the efficiency of mechanized paving, but japanese bast fibers are lacking, expensive, and difficult to popularize and apply in large quantities.
Disclosure of Invention
Aiming at the technical problems, the invention provides the green agricultural mulching film and the preparation method thereof, the preparation raw materials are rich, the process is simple, the cost is low, and the prepared mulching film has good quality and is more environment-friendly and more suitable for farmers to use.
In order to achieve the above purpose, the invention provides the following technical scheme:
a green agricultural mulching film is prepared from the following raw materials in parts by mass: 50-70 parts of plant fiber, 15-25 parts of rubber powder and 15-25 parts of paraffin.
Preferably, the green agricultural mulching film is prepared from the following raw materials in parts by mass: 60 parts of plant fiber, 20 parts of rubber powder and 20 parts of paraffin.
Preferably, the plant fiber is a mixture of natural-color plant chemi-mechanical pulp and paper raw materials, and the paper raw materials are paper shells and/or books.
Preferably, the mixing ratio of the natural color plant chemi-mechanical pulp to the paper raw material is 1: 1.
Preferably, the gelatine powder is industrial starch or edible starch with a particle size of more than 200 meshes.
Preferably, the paraffin wax is industrial wax or edible wax with a mesh size of more than 200.
The preparation method of the green agricultural mulching film comprises the following steps:
mixing and stirring plant fiber and rubber powder uniformly, putting the mixture into a material well as a bottom material, and then conveying the bottom material to a feeding box; spraying the bottom material on the fourdrinier wire by adopting a metering pump according to gram weight; using a metering pump to spray paraffin serving as a fabric to the fourdrinier wire and mixing the fabric with the bottom material according to the proportion; and then sequentially passing through a press, a dryer, a ring doubling machine, a splitting machine, a coating machine and a super calender to obtain the green agricultural mulching film.
Compared with the prior art, the invention has the beneficial effects that:
according to the green agricultural mulching film provided by the invention, plant fibers are used as a main mulching film material by adopting natural-color plant chemi-mechanical pulp, and a paper raw material is added to be used as a mulching film softening material; the non-toxic and tasteless paraffin is used as a waterproof material of the mulching film, and the paraffin is an additive of various fertilizers, so that the mulching film can be used as a waterproof fertilizer and a fertilizer, and the gram weight of the paraffin can be increased or decreased according to the covering time required by a user; the rubber powder is added, so that the tensile force and the strength of the mulching film can be increased; the produced mulching film is black and opaque, has good water retention and soil moisture preservation performance and strong temperature balance performance, can improve the crop yield by 50 percent, and produces high-quality grain, oil, fruits and vegetables; moreover, the mulching film has good quality, and the right-angle tearing strength of the mulching film can reach 12.8kN/m in the transverse direction, 14.3 kN/m in the longitudinal direction, 4.6MPa in the transverse direction and 5.7MPa in the longitudinal direction through the detection of Jilin province quality supervision and inspection institute; in addition, the mulching film can be degraded within 3-4 months, is more environment-friendly, can be used as a fertilizer after being degraded, softens soil, can be recycled, and can return from the nature to the nature. Therefore, the green agricultural mulching film provided by the invention is more suitable for farmers to use, and is a substitute product for removing the white plastic garbage mulching film in response to the national call.
The green agricultural mulching film preparation method provided by the invention adopts plant fibers as raw materials, has the advantages of rich raw materials, low cost and simple process, increases the density and the smoothness and improves the waterproofness by the calendering of the supercalender, has market competitiveness, and the produced product is the green agricultural mulching film, so the method is a circular sustainable development process flow.
Detailed Description
The invention relates to a green agricultural mulching film which is prepared from the following raw materials in parts by mass: 50-70 parts of plant fiber, 15-25 parts of rubber powder and 15-25 parts of paraffin.
The green agricultural mulching film is preferably prepared from the following raw materials in parts by mass: 60 parts of plant fiber, 20 parts of rubber powder and 20 parts of paraffin.
The plant fiber is a mixture of natural-color plant chemical mechanical pulp and paper raw materials. Wherein, the plant chemi-mechanical pulp of the natural color is used as the main material of the mulching film, and the paper raw material is used as the softening material of the mulching film. The mixing ratio of the natural-color plant chemi-mechanical pulp to the paper raw material is 1: 1. The natural-color plant chemi-mechanical pulp can be natural-color straw chemi-mechanical pulp, natural-color straw chemi-mechanical pulp or natural-color cotton stalk chemi-mechanical pulp, and the like, and the paper raw material is paper shells and/or books.
The glue powder is starch for papermaking with more than 200 meshes, and can be industrial starch or edible starch. The addition of the rubber powder can increase the tensile force and strength of the mulching film.
The paraffin is industrial wax or edible wax with a particle size of more than 200 meshes. The paraffin is used as a waterproof material of the mulching film and is also an additive of various fertilizers, so that the mulching film can be used as a waterproof fertilizer and a fertilizer, the covering time can be increased and decreased according to the requirement of a user, and the gram weight of the paraffin is increased and decreased.
The preparation method of the green agricultural mulching film comprises the following steps:
mixing and stirring plant fiber and rubber powder uniformly, putting the mixture into a material well as a bottom material, and then conveying the bottom material to a feeding box; spraying the bottom material on the fourdrinier wire by adopting a metering pump according to gram weight; using a metering pump to spray paraffin serving as a fabric to the fourdrinier wire and mixing the fabric with the bottom material according to the proportion; and then sequentially passing through a press, a dryer, a ring doubling machine, a splitting machine, a coating machine and a super calender to obtain the green agricultural mulching film.
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the following embodiments.
Example 1
The preparation method of the natural-color straw chemi-mechanical pulp comprises the following steps:
mixing 2500g of the natural-color straw chemi-mechanical pulp, 2500g of the paper shell and 2500g of industrial starch uniformly, adding the mixture serving as a base material into a material well, and then conveying the base material into a feeding box; spraying the bottom material onto the fourdrinier wire by using a metering pump; adopting a metering pump to spray 2500g of industrial wax serving as a plus material to a fourdrinier wire to be mixed with a base material; and then sequentially passing through a press, a dryer, a ring doubling machine, a splitting machine, a coating machine and a super calender, wherein the thickness of paraffin is 3-4 g per square meter, the coating temperature is 80 ℃, and the super calender is added after coating, so that the density and the smoothness and the water resistance of the mulching film are increased, and the green agricultural mulching film is obtained.
Example 2
3000g of the natural-color straw chemi-mechanical pulp prepared in the example 1, 3000g of an old book and 2000g of industrial starch are mixed and stirred uniformly, and then the mixture is used as a base material to be put into a material well and then sent to a feeding box; spraying the bottom material onto the fourdrinier wire by using a metering pump; spraying 2000g of edible wax serving as a fabric to the fourdrinier wire by using a metering pump to mix with the bottom material; and then sequentially passing through a press, a dryer, a ring doubling machine, a splitting machine, a coating machine and a super calender, wherein the thickness of paraffin is 3-4 g per square meter, the coating temperature is 80 ℃, and the super calender is added after coating, so that the density and the smoothness and the water resistance of the mulching film are increased, and the green agricultural mulching film is obtained.
Example 3
3500g of the natural-color straw chemi-mechanical pulp prepared in example 1, 3500g of the total weight of the paper shell and the old book and 1500g of edible starch are mixed and stirred uniformly, and then are put into a material well as a bottom material and then are sent to a feeding box; spraying the bottom material onto the fourdrinier wire by using a metering pump; adopting a metering pump to spray 1500g of edible wax serving as a fabric to the fourdrinier wire and mixing the fabric with the bottom material; and then sequentially passing through a press, a dryer, a ring doubling machine, a splitting machine, a coating machine and a super calender, wherein the thickness of paraffin is 3-4 g per square meter, the coating temperature is 80 ℃, and the super calender is added after coating, so that the density and the smoothness and the water resistance of the mulching film are increased, and the green agricultural mulching film is obtained.
The green agricultural mulching film prepared by the invention is respectively used for planting vegetables and fruits such as sweet potatoes, watermelons and the like, the green agricultural mulching film has good heat preservation performance, the highest temperature is not more than 50 ℃, the lowest temperature is not lower than minus 15 ℃, the thickness is generally 1.6-1.8mm according to the user requirement and the degradation time, after 3 months of paving, the strength is gradually reduced, the film is weathered and degraded for 3-4 months to become a fertilizer containing nitrogen, phosphorus and potassium, the degradation effect is very obvious, cleaning is not needed after autumn harvest, direct cultivation can be carried out in the second year, no influence is generated on cultivation in the second year, the yield of agricultural products is improved by 50% compared with that of the plastic mulching film, high-quality grain, oil, fruit and vegetables are produced, and the taste and yield of the agricultural products are superior.
In conclusion, the green agricultural mulching film has the effects of warming and preserving soil moisture, promoting the growth and development of crops and increasing the yield. Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: it is to be understood that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof, but such modifications or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. The green agricultural mulching film is characterized by being prepared from the following raw materials in parts by mass: 50-70 parts of plant fiber, 15-25 parts of rubber powder and 15-25 parts of paraffin.
2. The green agricultural mulching film according to claim 1, which is prepared from the following raw materials in parts by mass: 60 parts of plant fiber, 20 parts of rubber powder and 20 parts of paraffin.
3. The green agricultural mulching film according to claim 1 or 2, wherein the plant fiber is a mixture of natural color plant chemi-mechanical pulp and paper raw materials, and the paper raw materials are paper shells and/or books.
4. The green agricultural mulching film according to claim 3, wherein the mixing ratio of the natural color plant chemi-mechanical pulp to the paper raw material is 1: 1.
5. The green agricultural mulching film according to claim 1, wherein the rubber powder is industrial starch or edible starch of 200 meshes or more.
6. The green agricultural mulching film according to claim 1, wherein the paraffin is industrial wax or edible wax of 200 mesh or more.
7. The preparation method of the green agricultural mulching film according to any one of claims 1 to 6, which is characterized by comprising the following steps:
mixing and stirring plant fiber and rubber powder uniformly, putting the mixture into a material well as a bottom material, and then conveying the bottom material to a feeding box; spraying the bottom material on the fourdrinier wire by adopting a metering pump according to gram weight; using a metering pump to spray paraffin serving as a fabric to the fourdrinier wire and mixing the fabric with the bottom material according to the proportion; and then sequentially passing through a press, a dryer, a ring doubling machine, a splitting machine, a coating machine and a super calender to obtain the green agricultural mulching film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811027638.9A CN110870429A (en) | 2018-09-04 | 2018-09-04 | Green agricultural mulching film and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811027638.9A CN110870429A (en) | 2018-09-04 | 2018-09-04 | Green agricultural mulching film and preparation method thereof |
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| Publication Number | Publication Date |
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| CN110870429A true CN110870429A (en) | 2020-03-10 |
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| CN201811027638.9A Pending CN110870429A (en) | 2018-09-04 | 2018-09-04 | Green agricultural mulching film and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111719240A (en) * | 2020-06-10 | 2020-09-29 | 魏常炬 | Chemical fiber degradable membrane and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1223280A (en) * | 1998-01-16 | 1999-07-21 | 田应官 | Farm land mulch filma nd preparation process thereof |
| CN1343743A (en) * | 2000-09-21 | 2002-04-10 | 徐华 | Degradable plant fibre film for agriculture purpose |
| CN106718414A (en) * | 2016-12-07 | 2017-05-31 | 魏坤年 | A kind of degradable high-performance string synthesis agricultural mulching and preparation method thereof |
-
2018
- 2018-09-04 CN CN201811027638.9A patent/CN110870429A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1223280A (en) * | 1998-01-16 | 1999-07-21 | 田应官 | Farm land mulch filma nd preparation process thereof |
| CN1343743A (en) * | 2000-09-21 | 2002-04-10 | 徐华 | Degradable plant fibre film for agriculture purpose |
| CN1130429C (en) * | 2000-09-21 | 2003-12-10 | 徐华 | Degradable plant fibre film for agriculture purpose |
| CN106718414A (en) * | 2016-12-07 | 2017-05-31 | 魏坤年 | A kind of degradable high-performance string synthesis agricultural mulching and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111719240A (en) * | 2020-06-10 | 2020-09-29 | 魏常炬 | Chemical fiber degradable membrane and preparation method and application thereof |
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Application publication date: 20200310 |