CN110938256A - Special easily-recycled mulching film for large-scale cotton farm planting - Google Patents

Special easily-recycled mulching film for large-scale cotton farm planting Download PDF

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Publication number
CN110938256A
CN110938256A CN201911316004.XA CN201911316004A CN110938256A CN 110938256 A CN110938256 A CN 110938256A CN 201911316004 A CN201911316004 A CN 201911316004A CN 110938256 A CN110938256 A CN 110938256A
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China
Prior art keywords
parts
mulching film
recycled
cotton
coupling agent
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CN201911316004.XA
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Chinese (zh)
Inventor
杨虎德
马彦
冯丹妮
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GANSU ACADEMY OF AGRICULTURAL SCIENCES
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GANSU ACADEMY OF AGRICULTURAL SCIENCES
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Priority to CN201911316004.XA priority Critical patent/CN110938256A/en
Publication of CN110938256A publication Critical patent/CN110938256A/en
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/08—Copolymers of ethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/26—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment
    • C08J2423/30—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers modified by chemical after-treatment by oxidation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2429/00—Characterised by the use of homopolymers or 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 an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
    • C08J2429/02—Homopolymers or copolymers of unsaturated alcohols
    • C08J2429/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/10—Esters; Ether-esters
    • C08K5/101—Esters; Ether-esters of monocarboxylic acids
    • C08K5/103—Esters; Ether-esters of monocarboxylic acids with polyalcohols
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • C08K7/04—Fibres or whiskers inorganic
    • C08K7/08—Oxygen-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/22—Expanded, porous or hollow particles
    • C08K7/24—Expanded, porous or hollow particles inorganic

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Protection Of Plants (AREA)

Abstract

The invention discloses an easily-recycled mulching film special for large-scale cotton farm planting, which is prepared from the following raw materials: polyethylene, polyvinyl alcohol, oxidized polyethylene wax, a silane coupling agent, activated carbon powder, glyceryl stearate, magnesium borate whisker and a rare earth coupling agent. The invention has the beneficial effects that: the easily-recycled mulching film special for large-scale cotton farm planting provided by the invention has the advantages that the recovery rate of the mulching film of cotton is greatly improved by adjusting the composition of the mulching film, the toughness of the mulching film is effectively increased, the planting cost of large-scale cotton planting is reduced, the mulching film can be repeatedly used for eight years, can be recycled by 100% after being used, has excellent acid and alkali corrosion resistance, low air permeability and low water permeability, is an ideal material for fertilizer conservation, heat preservation and soil moisture conservation, can accelerate the growth and development of crops, can achieve high yield and harvest, and improves the economic benefit.

Description

Special easily-recycled mulching film for large-scale cotton farm planting
Technical Field
The invention relates to the technical field of agricultural mulching films, in particular to an easily-recycled mulching film special for large-scale cotton farm planting.
Background
Mulching film, i.e., ground covering film, is usually a transparent or black PE film, and also has green and silver films, and is used for ground covering to increase the temperature of soil, maintain the moisture of soil, maintain the soil structure, prevent pests from attacking crops and diseases caused by certain microorganisms, etc., and promote the growth of plants.
Cotton is an important economic crop, and has important significance for developing cotton planting as an important raw material in textile industry, light industry, chemical industry, medicine and national defense industry. In the process of planting cotton, plastic film mulching cultivation is a common cultivation mode, has the effects of preserving heat and increasing temperature, preserving and improving soil moisture, protecting soil structure and the like, and has great significance for promoting stable yield and high yield of cotton planting.
Disclosure of Invention
The invention aims to provide the special easily-recycled mulching film for large-scale cotton farm planting, aiming at the defects in the prior art.
In order to achieve the purpose, the technical scheme provided by the invention is as follows: the easily-recycled mulching film special for large-scale cotton farm planting is prepared from the following raw materials in parts by weight: 800-900 parts of polyethylene, 15-25 parts of polyvinyl alcohol, 20-40 parts of oxidized polyethylene wax, 5-15 parts of a silane coupling agent, 10-20 parts of activated carbon powder, 5-8 parts of glyceryl stearate, 4-6 parts of magnesium borate whisker and 8-10 parts of a rare earth coupling agent.
Further, the easily-recycled mulching film special for large-scale cotton farm planting is prepared from the following raw materials in parts by weight: 850 parts of polyethylene, 20 parts of polyvinyl alcohol, 30 parts of oxidized polyethylene wax, 10 parts of a silane coupling agent, 15 parts of activated carbon powder, 7 parts of glyceryl stearate, 5 parts of magnesium borate whisker and 9 parts of a rare earth coupling agent.
Furthermore, the mulching film special for the large-scale cotton farm planting and easy to recycle is prepared from polyethylene and linear low-density polyethylene.
Furthermore, the mulching film special for the large-scale cotton farm planting and easy to recycle is prepared from polyvinyl alcohol with high viscosity.
Furthermore, the special easily-recycled mulching film for the large-scale cotton farm planting is characterized in that the silane coupling agent is vinyl triethoxysilane.
The invention has the beneficial effects that: the easily-recycled mulching film special for large-scale cotton farm planting provided by the invention has the advantages that the recovery rate of the mulching film of cotton is greatly improved by adjusting the composition of the mulching film, the toughness of the mulching film is effectively increased, the planting cost of large-scale cotton planting is reduced, the mulching film can be repeatedly used for eight years, can be recycled by 100% after being used, has excellent acid and alkali corrosion resistance, low air permeability and low water permeability, is an ideal material for fertilizer conservation, heat preservation and soil moisture conservation, can accelerate the growth and development of crops, can achieve high yield and harvest, and improves the economic benefit.
Detailed Description
Example 1:
the easily-recycled mulching film special for large-scale cotton farm planting is prepared from the following raw materials: 900g of polyethylene, 25g of polyvinyl alcohol, 40g of oxidized polyethylene wax, 15g of silane coupling agent, 20g of activated carbon powder, 8g of glyceryl stearate, 6g of magnesium borate whisker and 10g of rare earth coupling agent.
The polyethylene is linear low density polyethylene.
The polyvinyl alcohol is high-viscosity polyvinyl alcohol.
The silane coupling agent is vinyl triethoxysilane.
Example 2:
the easily-recycled mulching film special for large-scale cotton farm planting is prepared from the following raw materials: 800g of polyethylene, 15g of polyvinyl alcohol, 20g of oxidized polyethylene wax, 5g of silane coupling agent, 10g of activated carbon powder, 5g of glyceryl stearate, 4g of magnesium borate whisker and 8g of rare earth coupling agent.
The polyethylene is linear low density polyethylene.
The polyvinyl alcohol is high-viscosity polyvinyl alcohol.
The silane coupling agent is vinyl triethoxysilane.
Example 3:
the easily-recycled mulching film special for large-scale cotton farm planting is prepared from the following raw materials: 850g of polyethylene, 20g of polyvinyl alcohol, 30g of oxidized polyethylene wax, 10g of silane coupling agent, 15g of activated carbon powder, 7g of glyceryl stearate, 5g of magnesium borate whisker and 9g of rare earth coupling agent.
The polyethylene is linear low density polyethylene.
The polyvinyl alcohol is high-viscosity polyvinyl alcohol.
The silane coupling agent is vinyl triethoxysilane.
Example 4:
firstly, the detection requirements needed by agricultural and agricultural technology cultivation are as follows:
① test types
A: vegetable planting in protected agriculture
B: cotton planting
② detecting content
A: soil temperature, humidity and soil microorganism number of plough layer before film covering.
B: the above values were measured quarterly after coating and the changes were recorded in detail and compared with the ordinary membrane.
C: growth data were measured monthly for the planted crops and compared with the same period of time for the same area covered with ordinary mulch film.
D: after the crops are mature, the measured yield value is used as a yield value, and the yield of the crops planted in the same area by using the common film is compared.
E: after the mulching film is collected and stored, the temperature, the humidity and the microbial value of the cultivated land are detected and recorded.
F: the altitude, annual average rainfall and climate data of the test area are provided.
And G, requiring agricultural rings and agricultural skills in the test area to record the climate conditions and rainfall conditions in the area monthly.
The above tests require five years of continuous testing, with the costs being provided by the gold land.
Secondly, the detection requirements needed by agricultural film manufacturing enterprises are as follows:
① before film covering, the mulching film has various physical indexes.
② after film covering, sampling in the field every month to detect the physical index decrease value.
③ and the like to continuously detect the five-year value.
④ when the cover period is in the case of extreme high temperature, cooling, hail, etc., the physical index is sampled and detected.
The product is prepared by adopting polyethylene as a base material, adding weather resistant resin, strictly producing according to the Q/LZJTD 01-2018 standard, and performing extrusion blow molding and stretching. The product can be repeatedly used for eight years, can be recovered by 100 percent after being used, has excellent acid and alkali corrosion resistance, low air permeability and low water permeability, is an ideal material for fertilizer conservation, heat preservation and soil moisture conservation, can accelerate the growth and development of crops, achieves high yield and harvest and improves the economic benefit.
When covering, the ground is required to be smooth, no weed exists, the film laying speed is uniform, and the end face is prevented from rubbing or scraping with a sharp tool so as to avoid damage.
The product grade of the product with the high-efficiency environmental-friendly film with the product parameters of 0.16mm and 10kg of weight per roll is a qualified product with the thickness: 0.16 mm; average thickness deviation: + 6%; width: producing according to the requirement of an demander; width limit deviation: +7 mm; +5 mm. Appearance: the film roll has no defects of air bubbles, spots, wrinkles, impurities, pinholes and the like which influence the use, has no defects of more than 20/100 square centimeters which do not influence the use, is rolled up smoothly, has no obvious rib, has the rolling width of the film roll different from the nominal width of the film and is staggered by 13mm, and has no broken ends.
Example 5:
the detection data of the easily-recycled special mulching film of the cotton large-scale planting mode in the embodiment 3 are shown in the table 1.
TABLE 1
Special mulching film easy to recycle cotton
Thickness (mm) 0.10-0.030
Width (m) 0.9-1.3
Elongation at Break (%) 2.3-6.8
Weathering period (sky) 360-540
Right angle tear load (kn/m) 1.0-4.9
Recovery (%) 100
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The easily-recycled mulching film special for large-scale cotton farm planting is characterized by being prepared from the following raw materials in parts by weight: 800-900 parts of polyethylene, 15-25 parts of polyvinyl alcohol, 20-40 parts of oxidized polyethylene wax, 5-15 parts of a silane coupling agent, 10-20 parts of activated carbon powder, 5-8 parts of glyceryl stearate, 4-6 parts of magnesium borate whisker and 8-10 parts of a rare earth coupling agent.
2. The easily-recycled mulching film special for large-scale cotton farm planting according to claim 1 is characterized by being prepared from the following raw materials in parts by weight: 850 parts of polyethylene, 20 parts of polyvinyl alcohol, 30 parts of oxidized polyethylene wax, 10 parts of a silane coupling agent, 15 parts of activated carbon powder, 7 parts of glyceryl stearate, 5 parts of magnesium borate whisker and 9 parts of a rare earth coupling agent.
3. The easily-recycled mulching film special for cotton scale farm planting according to claim 1 or 2, wherein the polyethylene is linear low density polyethylene.
4. The easily-recycled mulching film special for cotton scale farm planting according to claim 1 or 2, wherein the polyvinyl alcohol is high-viscosity polyvinyl alcohol.
5. The easily-recycled mulching film special for cotton scale farm planting according to claim 1 or 2, wherein the silane coupling agent is vinyl triethoxysilane.
CN201911316004.XA 2019-12-19 2019-12-19 Special easily-recycled mulching film for large-scale cotton farm planting Pending CN110938256A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101701079A (en) * 2009-10-30 2010-05-05 昆明春叶塑料制成品有限公司 Preparation method of polyethylene mulching film master batch for magnesium salt whisker reinforced smoke
CN103289169A (en) * 2013-06-21 2013-09-11 苏州新区佳合塑胶有限公司 Modified high-density-polyethylene composite
CN105001484A (en) * 2015-06-16 2015-10-28 四川蜀羊防水材料有限公司 Polyethylene material and preparation method thereof
CN105367887A (en) * 2015-12-08 2016-03-02 山东棉花研究中心 Environment-friendly mulching film easy for recycling and preparation method thereof
CN108164803A (en) * 2017-12-22 2018-06-15 合肥善腾塑料科技有限公司 It is a kind of can multiple degrading plastic film and preparation method thereof
CN109206716A (en) * 2018-09-10 2019-01-15 海南自立环保科技有限公司 The masterbatch and its manufacturing method for promoting crop yield, can control degradation speed

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101701079A (en) * 2009-10-30 2010-05-05 昆明春叶塑料制成品有限公司 Preparation method of polyethylene mulching film master batch for magnesium salt whisker reinforced smoke
CN103289169A (en) * 2013-06-21 2013-09-11 苏州新区佳合塑胶有限公司 Modified high-density-polyethylene composite
CN105001484A (en) * 2015-06-16 2015-10-28 四川蜀羊防水材料有限公司 Polyethylene material and preparation method thereof
CN105367887A (en) * 2015-12-08 2016-03-02 山东棉花研究中心 Environment-friendly mulching film easy for recycling and preparation method thereof
CN108164803A (en) * 2017-12-22 2018-06-15 合肥善腾塑料科技有限公司 It is a kind of can multiple degrading plastic film and preparation method thereof
CN109206716A (en) * 2018-09-10 2019-01-15 海南自立环保科技有限公司 The masterbatch and its manufacturing method for promoting crop yield, can control degradation speed

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Application publication date: 20200331