CN114921025A - Degradable environment-friendly mulching film and manufacturing method thereof - Google Patents

Degradable environment-friendly mulching film and manufacturing method thereof Download PDF

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Publication number
CN114921025A
CN114921025A CN202210659763.1A CN202210659763A CN114921025A CN 114921025 A CN114921025 A CN 114921025A CN 202210659763 A CN202210659763 A CN 202210659763A CN 114921025 A CN114921025 A CN 114921025A
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China
Prior art keywords
peach
almond
parts
shells
shell powder
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Pending
Application number
CN202210659763.1A
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Chinese (zh)
Inventor
王晓娟
王娟玲
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Shanxi Institute Of Organic Dry Farming Shanxi Agricultural University
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Shanxi Institute Of Organic Dry Farming Shanxi Agricultural University
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Application filed by Shanxi Institute Of Organic Dry Farming Shanxi Agricultural University filed Critical Shanxi Institute Of Organic Dry Farming Shanxi Agricultural University
Priority to CN202210659763.1A priority Critical patent/CN114921025A/en
Publication of CN114921025A publication Critical patent/CN114921025A/en
Pending legal-status Critical Current

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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
    • C08J2323/10—Homopolymers or copolymers of propene
    • C08J2323/12—Polypropene
    • 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
    • C08J2463/00—Characterised by the use of epoxy resins; Derivatives of epoxy resins
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/04—Carbon
    • C08K3/042—Graphene or derivatives, e.g. graphene oxides
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/28—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture specially adapted for farming

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

Abstract

The invention relates to a degradable environment-friendly mulching film and a manufacturing method thereof, belonging to the technical field of mulching films and specifically comprising 57-86 parts by weight of polypropylene, 10-30 parts by weight of peach shell powder or almond shell powder, 3-10 parts by weight of graphene and 1-3 parts by weight of epoxy resin adhesive, wherein the granularity of the peach shell and the almond shell is 5-100 mu m.

Description

Degradable environment-friendly mulching film and manufacturing method thereof
Technical Field
The invention relates to a degradable environment-friendly mulching film and a manufacturing method thereof, belonging to the technical field of mulching films.
Background
The degradable mulching film is used for covering in agricultural production, so that the degradable mulching film has the functions of moisture preservation, water retention, fertilizer retention, insect prevention, weed suppression and the like, can also keep soil moisture, improve the moisture utilization rate, improve the crop growth environment, improve the crop yield and the agricultural benefit, and does not pollute the environment, so that the degradable mulching film is widely applied. At present, the existing degradable mulching film is complex in process during production, insufficient in strength and easy to damage.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides the degradable environment-friendly mulching film which is good in flexibility, high in structural strength, not easy to damage and suitable for being produced by a calendering process and the manufacturing method thereof.
In order to achieve the purpose, the technical scheme adopted by the invention is a degradable environment-friendly mulching film which comprises the following components in percentage by weight,
57-86 Parts of Polypropylene (PP),
10-30 parts of peach shell powder or almond shell powder,
3-10 parts of graphene, wherein the graphene is a graphene oxide,
1-3 parts of epoxy resin adhesive,
the granularity of the peach shell and the almond shell is 5-100 um.
A preparation method of a degradable environment-friendly mulching film comprises the following steps,
s1, airing the peach shells or the almond shells, crushing the peach shells or the almond shells, and grinding the peach shells or the almond shells into powder, wherein the granularity of the ground peach shell powder or almond shell powder is 5-100 um;
s2, mixing polypropylene, peach shell powder or almond shell powder, graphene and epoxy resin adhesive according to a ratio to form a mixture;
s3, processing the mixture into a mulching film by a rolling method, wherein the rolling temperature is 180-260 ℃.
Compared with the prior art, the invention has the following technical effects: according to the invention, polypropylene is used as a raw material, the photodegradation of the mulching film can be effectively improved and the mulching film can be prevented from generating static electricity by adding graphene, so that white pollution is reduced, meanwhile, the toughness of the mulching film can be effectively improved by adding peach shell powder or almond shell powder, the mulching film can be prevented from being broken, and the function of delaying the decomposition of the mulching film can be achieved; the epoxy resin adhesive can effectively mix polypropylene, graphene, peach shell powder or almond shell powder, and improves the mixing effect.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more apparent, the present invention is further described in detail below with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example one
The degradable environment-friendly mulching film comprises 57 parts by weight of polypropylene, 10 parts by weight of peach shell powder or almond shell powder, 3 parts by weight of graphene and 1 part by weight of epoxy resin adhesive, wherein the granularity of the peach shell and the almond shell is 5 microns.
The specific installation is carried out according to the following steps,
s1, airing the peach shells or the almond shells, crushing the peach shells or the almond shells, and grinding the peach shells or the almond shells into powder, wherein the granularity of the ground peach shell powder or almond shell powder is 5 um;
s2, mixing polypropylene, peach shell powder or almond shell powder, graphene and epoxy resin adhesive according to a ratio to form a mixture;
s3, processing the mixture into a mulching film by a rolling method, wherein the rolling temperature is 180 ℃.
The tensile strength of the prepared mulching film is improved by 3.2-5.4%, the light transmittance is reduced by 2.3-3.7%, and the degradation time is delayed by 4-5 days.
Example two
The degradable environment-friendly mulching film comprises 86 parts of polypropylene, 30 parts of peach shell powder or almond shell powder, 10 parts of graphene and 3 parts of epoxy resin adhesive, wherein the granularity of the peach shell and the almond shell is 100 microns.
The specific installation is carried out according to the following steps,
s1, airing the peach shells or the almond shells, crushing the peach shells or the almond shells, and grinding the peach shells or the almond shells into powder, wherein the granularity of the ground peach shell powder or almond shell powder is 100 um;
s2, mixing polypropylene, peach shell powder or almond shell powder, graphene and epoxy resin adhesive according to a ratio to form a mixture;
s3, processing the mixture into the mulching film by a rolling method, wherein the rolling temperature is 260 ℃.
The tensile strength of the prepared mulching film is improved by 6.4-8.1%, the light transmittance is reduced by 4.2-5.3%, and the degradation time is delayed by 9-10 days.
EXAMPLE III
The degradable environment-friendly mulching film comprises, by weight, 70 parts of polypropylene, 20 parts of peach shell powder or almond shell powder, 6 parts of graphene and 2 parts of an epoxy resin adhesive, wherein the granularity of the peach shell and the almond shell is 40 microns.
The specific installation is carried out according to the following steps,
s1, airing the peach shells or the almond shells, crushing the peach shells or the almond shells, and grinding the peach shells or the almond shells into powder, wherein the granularity of the ground peach shell powder or almond shell powder is 40 um;
s2, mixing polypropylene, peach shell powder or almond shell powder, graphene and epoxy resin adhesive according to a ratio to form a mixture;
s3, processing the mixture into the mulching film by a rolling method, wherein the rolling temperature is 200 ℃.
The tensile strength of the prepared mulching film is improved by 5.6-7.4%, the light transmittance is reduced by 3.5-4.2%, and the degradation time is delayed by 5-6 days.
Example four
The degradable environment-friendly mulching film comprises, by weight, 75 parts of polypropylene, 25 parts of peach shell powder or almond shell powder, 8 parts of graphene and 1.5 parts of an epoxy resin adhesive, wherein the granularity of the peach shell and the almond shell is 80 micrometers.
The specific installation is carried out according to the following steps,
s1, airing the peach shells or the almond shells, crushing the peach shells or the almond shells, and grinding into powder, wherein the particle size of the ground peach shell powder or the almond shell powder is 80 um;
s2, mixing polypropylene, peach shell powder or almond shell powder, graphene and epoxy resin adhesive according to a ratio to form a mixture;
s3, processing the mixture into the mulching film by a rolling method, wherein the rolling temperature is 230 ℃.
The tensile strength of the prepared mulching film is improved by 4.1-6.3%, the light transmittance is reduced by 4.8-5.9%, and the degradation time is delayed by 7-8 days.
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 and improvements made within the spirit and principle of the present invention are intended to be included therein.

Claims (2)

1. A degradable environment-friendly mulching film is characterized in that: comprises the following components in parts by weight,
57-86 Parts of Polypropylene (PP),
10-30 parts of peach shell powder or almond shell powder,
3-10 parts of graphene, namely 3-10 parts of graphene,
1-3 parts of epoxy resin adhesive,
the granularity of the peach shell and the almond shell is 5-100 um.
2. The preparation method of the degradable environment-friendly mulching film according to claim 1, characterized by comprising the following steps: the method comprises the following steps of (1),
s1, airing the peach shells or the almond shells, crushing the peach shells or the almond shells, and grinding the peach shells or the almond shells into powder, wherein the granularity of the ground peach shell powder or almond shell powder is 5-100 um;
s2, mixing polypropylene, peach shell powder or almond shell powder, graphene and epoxy resin adhesive according to a ratio to form a mixture;
s3, processing the mixture into a mulching film by a rolling method, wherein the rolling temperature is 180-260 ℃.
CN202210659763.1A 2022-06-13 2022-06-13 Degradable environment-friendly mulching film and manufacturing method thereof Pending CN114921025A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210659763.1A CN114921025A (en) 2022-06-13 2022-06-13 Degradable environment-friendly mulching film and manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210659763.1A CN114921025A (en) 2022-06-13 2022-06-13 Degradable environment-friendly mulching film and manufacturing method thereof

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Publication Number Publication Date
CN114921025A true CN114921025A (en) 2022-08-19

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102492198A (en) * 2011-11-18 2012-06-13 河南工业大学 Preparation method of eco-friendly polyolefin composite material
CN105440496A (en) * 2015-12-23 2016-03-30 重庆乐乎科技有限公司 Method for manufacturing photodegradable polyvinyl chloride mulch film and product
CN107325398A (en) * 2017-06-19 2017-11-07 广东乐将生物科技有限公司 A kind of airtight water proof type polypropylene film

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102492198A (en) * 2011-11-18 2012-06-13 河南工业大学 Preparation method of eco-friendly polyolefin composite material
CN105440496A (en) * 2015-12-23 2016-03-30 重庆乐乎科技有限公司 Method for manufacturing photodegradable polyvinyl chloride mulch film and product
CN107325398A (en) * 2017-06-19 2017-11-07 广东乐将生物科技有限公司 A kind of airtight water proof type polypropylene film

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