CN103724752A - Novel environment-friendly mulching film - Google Patents
Novel environment-friendly mulching film Download PDFInfo
- Publication number
- CN103724752A CN103724752A CN201310609817.4A CN201310609817A CN103724752A CN 103724752 A CN103724752 A CN 103724752A CN 201310609817 A CN201310609817 A CN 201310609817A CN 103724752 A CN103724752 A CN 103724752A
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- Prior art keywords
- mulch film
- novel environment
- auxiliary agent
- environment friendly
- main component
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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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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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
- 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
- C08J2323/06—Polyethene
-
- 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
- C08J2403/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
- C08J2403/02—Starch; Degradation products thereof, e.g. dextrin
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
-
- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention discloses a novel environment-friendly mulching film. The mulching film mainly comprises the components in percentage as follows: 55%-65% of low density polyethylene, 25%-35% of degradable master batch and the balance of related assistants. The mulching film is prepared with a blow molding technology. The novel environment-friendly mulching film is reasonable in component preparation and stable in usability, has good degradability as well as water retention and thermal insulation properties, and can meet requirements of the modern agricultural production.
Description
Technical field
The present invention relates to a kind of mulch film, relate in particular to a kind of novel environment-friendly mulch film, belong to plastic products technology field.
Background technology
Along with scientific and technological progress and the development of plastics industry, various plastics are widely used in social production, sphere of life, wherein mulch film is one of the most widely used plastics in agriculture production, 1,200,000 tons of national mulch film consumptions in 2013 according to statistics, 3.5 hundred million mu of culture underglass areas.The use of mulch film, has also brought more serious white pollution when making significant contribution to China's agricultural.The agricultural land soil of the long-term overlay film of China at present, average every mu of mulch film residual quantity is at 5～15 kilograms.
In existing technology, solve the residual method of mulch film and mainly contain the two kinds of approach that reclaim and degrade.Adopt way of recycling need drop into a large amount of human and material resources, and the recycling rate after reclaiming is very low.Adopt degraded mode, although it is not mature enough to be confined to the development of degradation technique, can effectively reduces mulch film and use rear pedo relict, the present stage of can yet be regarded as solves the best mode of mulch film residual contamination.In recent years, bio-based and the research and development of petroleum base degradative resin have both at home and abroad obtained important breakthrough, for important foundation has been established in degradable mulch exploitation.
Summary of the invention
For the demand, the invention provides a kind of novel environment friendly mulch film, rationally, preparation technology's science, has good degradability and water conservation heat-insulating property, is easy to apply in this ground film component preparation.
The present invention is a kind of novel environment friendly mulch film, and the main component of this mulch film and percentage composition proportioning thereof are: Low Density Polyethylene 55%-65%, degradable masterbatch 25%-35%, and all the other are relevant auxiliary agent, described mulch film employing blow molding process is prepared.
In a preferred embodiment of the present invention, the main component of described mulch film and percentage composition proportioning thereof are: Low Density Polyethylene 58%-62%, degradable masterbatch 28%-32%, all the other are relevant auxiliary agent.
In a preferred embodiment of the present invention, main component and the percentage composition proportioning of described degradable masterbatch are: thermoplastic starch 50%-55%, ethylene-acrylic acid copolymer 15%-18%, linear low density polyethylene 30%-35%, all the other are auxiliary agent.
In a preferred embodiment of the present invention, the main component of described thermoplastic starch and percentage composition proportioning thereof are: super-refinement starch 75%, glycerine 12.5%, stearic acid 10%, whiteruss 2.5%.
In a preferred embodiment of the present invention, described auxiliary agent comprises lubricant, thermo-stabilizer, oxidation inhibitor etc.
The present invention has disclosed a kind of novel environment friendly mulch film, and rationally, use properties is stable, and has good degradability and water conservation heat-insulating property, meets modern agricultural production needs in this ground film component preparation.
Embodiment
Below preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.
In the novel environment friendly mulch film of mentioning in the present invention, the main component of this mulch film and percentage composition proportioning thereof are: Low Density Polyethylene 55%-65%, degradable masterbatch 25%-35%, and all the other are relevant auxiliary agent, described mulch film employing blow molding process is prepared.
Further illustrate, the main component of mulch film and percentage composition proportioning thereof are: Low Density Polyethylene 58%-62%, degradable masterbatch 28%-32%, and all the other are relevant auxiliary agent; The main component of degradable masterbatch and percentage composition proportioning are: thermoplastic starch 50%-55%, ethylene-acrylic acid copolymer 15%-18%, linear low density polyethylene 30%-35%, and all the other are auxiliary agent; The main component of thermoplastic starch and percentage composition proportioning thereof are: super-refinement starch 75%, glycerine 12.5%, stearic acid 10%, whiteruss 2.5%; Auxiliary agent comprises lubricant, thermo-stabilizer, oxidation inhibitor etc.
Embodiment
The preparation method's of the novel environment friendly mulch film that the present invention mentions concrete preparation process is as follows:
A) prepare thermoplastic starch, the main component of thermoplastic starch and percentage composition proportioning thereof are: super-refinement starch 75%, glycerine 12.5%, stearic acid 10%, whiteruss 2.5%; Preparation process is as follows: first, 75% super-refinement starch, 4% glycerine, 3.5% stearic acid and 1% whiteruss are added into kneading machine, kneader is warming up to 80 ℃, high-speed stirring 5 minutes; Then, according to the interval of 5 minutes, at twice remaining 8.5% glycerine, 6.5% stearic acid and 1.5% whiteruss are added into kneader, high-speed stirring 10min, kneader temperature is controlled at 85 ℃-90 ℃; Finally, cooling in kneader, make thermoplastic starch; Owing to containing great amount of hydroxy group in common starch molecule, the effect of intermolecular hydrogen bonding makes its second-order transition temperature higher than decomposition temperature, make it cannot in general-purpose plastics machinery, carry out hot-work, therefore utilize glycerine, stearic acid and whiteruss to carry out modification to super-refinement starch, make starch there is hot workability;
B) prepare degradable masterbatch, the main component of degradable masterbatch and percentage composition proportioning are: thermoplastic starch 50%, ethylene-acrylic acid copolymer 16%, linear low density polyethylene 33%, and all the other are auxiliary agent; Preparation process is as follows: first, ethylene-acrylic acid copolymer, linear low density polyethylene and iron content photosensitizers are added to mixing machine successively, mixing machine is warming up to 90 ℃, fully mixes 5-6 minute; Then, add thermoplastic starch, fully mix 8-10 minute; Finally, compound is sent into extruding pelletization in twin screw extruder, the screw slenderness ratio of twin screw extruder is 35:1, and each district temperature is controlled at 120 ℃ of left and right, after melt extrusion, by fervent method, carries out granulation, and the particle diameter of the degradable masterbatch making is about 0.03mm;
C) hot melt blowing, the Low Density Polyethylene according to 60%, 30% degradable masterbatch and 10% auxiliary agent are got the raw materials ready, and auxiliary agent comprises lubricant, thermo-stabilizer, oxidation inhibitor etc.; First, raw material is added into general-purpose plastics extruder barrel, barrel temperature is controlled at 120 ℃-130 ℃, stirs 5-10 minute; Then, compound is extruded from forcing machine, by cooling roller, after cooling and pressure roller stretch processing, makes the sheet material that thickness is about 1-1.2mm; Finally, logical pressurized air carries out inflation processing, and atmospheric pressure is controlled at 1-1.2MPa, and the ground film thickness making is about 0.015-0.02mm;
D) mulch film aftertreatment, aftertreatment technology comprises trimming, rolling and cuts.
The present invention has disclosed a kind of novel environment friendly mulch film, and rationally, use properties is stable, and has good degradability and water conservation heat-insulating property, meets modern agricultural production needs in this ground film component preparation.
The above; it is only the specific embodiment of the present invention; but protection scope of the present invention is not limited to this; any those of ordinary skill in the art are in the disclosed technical scope of the present invention; the variation that can expect without creative work or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain that claims were limited.
Claims (5)
1. a novel environment friendly mulch film, is characterized in that, the main component of this mulch film and percentage composition proportioning thereof are: Low Density Polyethylene 55%-65%, degradable masterbatch 25%-35%, and all the other are relevant auxiliary agent, described mulch film employing blow molding process is prepared.
2. novel environment friendly mulch film according to claim 1, is characterized in that, the main component of described mulch film and percentage composition proportioning thereof are: Low Density Polyethylene 58%-62%, degradable masterbatch 28%-32%, all the other are relevant auxiliary agent.
3. novel environment friendly mulch film according to claim 1, it is characterized in that, main component and the percentage composition proportioning of described degradable masterbatch are: thermoplastic starch 50%-55%, ethylene-acrylic acid copolymer 15%-18%, linear low density polyethylene 30%-35%, all the other are auxiliary agent.
4. novel environment friendly mulch film according to claim 3, is characterized in that, the main component of described thermoplastic starch and percentage composition proportioning thereof are: super-refinement starch 75%, glycerine 12.5%, stearic acid 10%, whiteruss 2.5%.
5. novel environment friendly mulch film according to claim 1, is characterized in that, described auxiliary agent comprises lubricant, thermo-stabilizer, oxidation inhibitor etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310609817.4A CN103724752A (en) | 2013-11-27 | 2013-11-27 | Novel environment-friendly mulching film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310609817.4A CN103724752A (en) | 2013-11-27 | 2013-11-27 | Novel environment-friendly mulching film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103724752A true CN103724752A (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310609817.4A Pending CN103724752A (en) | 2013-11-27 | 2013-11-27 | Novel environment-friendly mulching film |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105038291A (en) * | 2015-05-29 | 2015-11-11 | 安徽美翔塑业有限公司 | Mulching film capable of expelling insects and manufacturing technique thereof |
| CN105330953A (en) * | 2015-12-14 | 2016-02-17 | 民勤县邦德贸易有限公司 | Water retention resin master batch for compositin mulching film and preparation method thereof |
| CN107057158A (en) * | 2017-04-27 | 2017-08-18 | 江苏华昌织物有限公司 | A kind of vegetables culture underglass mulch film and preparation method thereof |
| CN107371919A (en) * | 2017-06-19 | 2017-11-24 | 广东乐将生物科技有限公司 | A kind of press strip Environment protection mulch film for being incubated water conservation |
-
2013
- 2013-11-27 CN CN201310609817.4A patent/CN103724752A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105038291A (en) * | 2015-05-29 | 2015-11-11 | 安徽美翔塑业有限公司 | Mulching film capable of expelling insects and manufacturing technique thereof |
| CN105330953A (en) * | 2015-12-14 | 2016-02-17 | 民勤县邦德贸易有限公司 | Water retention resin master batch for compositin mulching film and preparation method thereof |
| CN107057158A (en) * | 2017-04-27 | 2017-08-18 | 江苏华昌织物有限公司 | A kind of vegetables culture underglass mulch film and preparation method thereof |
| CN107371919A (en) * | 2017-06-19 | 2017-11-24 | 广东乐将生物科技有限公司 | A kind of press strip Environment protection mulch film for being incubated water conservation |
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| C06 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140416 |