CN104974398A - Mulching film degraded via light-microorganism synergetic degradation, and preparation method thereof - Google Patents
Mulching film degraded via light-microorganism synergetic degradation, and preparation method thereof Download PDFInfo
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- CN104974398A CN104974398A CN201510376426.1A CN201510376426A CN104974398A CN 104974398 A CN104974398 A CN 104974398A CN 201510376426 A CN201510376426 A CN 201510376426A CN 104974398 A CN104974398 A CN 104974398A
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- potato starch
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- gelatinization
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/04—Extrusion blow-moulding
-
- 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
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
-
- 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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
-
- 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
Abstract
The invention provides a mulching film degraded via light-microorganism synergetic degradation. The mulching film degraded via light-microorganism synergetic degradation comprises following ingredients, by weight, 12 to 15 parts of gelatinized potato starch, 20 to 30 parts of low density polyethylene, 0.5 to 0.8 part of collagen, 0.5 to 0.8 part of fat, 0.5 to 0.8 part of lactic acid, 1 to 2 parts of glycerin, 1 to 2 parts of glyoxal, 0.5 part of nano-grade silicon dioxide, 4 to 6 parts of urea, and 0.5 to 0.8 part of a photolysis agent. The invention also provides a preparation method. According to the preparation method, potato starch is modified, so that preferable mixing of ingredients which are incompatible because of different polarity is realized, raw material starch content is increased, and more important, mulching film product mechanical properties and using performance are improved.
Description
Technical field
The present invention relates to a kind of light and microorganism Synergistic degradation mulch film and preparation method thereof.
Background technology
Agricultural mulching is used for agriculture production and starts from the phase at the beginning of the eighties in last century, and in after this 30 years, plastic sheeting for farm use is widely used in the every field of agriculture production.It, to improve the soil moisture, soil moisture conservation, the evaporation of control moisture, suppress weed growth and improve many characteristics of crop yield, plays an important role in agricultural production process.Along with a large amount of uses of agricultural mulching, the disposal problems of useless film also becomes increasingly outstanding, and while completing " White Revolution ", " white pollution " becomes again one of the principal element affecting agricultural development, contaminate environment, restriction crop yield.According to investigations, in cotton, corn field, residual 4kg/ mu mulch film, will cause the underproduction of 10%; Wheatland remains 4kg/ mu mulch film, will underproduction 30kg/ mu, not only reduces income, and causes soil compaction, more seriously the physicochemical structure of spoiled soil, contaminated land and environment.The ways such as peasant household also takes to reclaim to useless film, bury, burning process, but the useless film of burying can not decompose for 100 years, burns and produces again obnoxious flavour, causes secondary pollution.In order to reduce the pollution of residual film to soil as far as possible, reduce the impact of residual film on crop, need degradative plastic film be greatly developed.
Summary of the invention
The invention provides a kind of light and microorganism Synergistic degradation mulch film and preparation method thereof.
The invention provides a kind of light and microorganism Synergistic degradation mulch film, comprise following component by weight: gelatinization potato starch 8-12 part, Low Density Polyethylene 20-30 part, collagen protein 0.5-0.8 part, fatty 0.5-0.8 part, lactic acid 0.5-0.8 part, glycerine 1-2 part, oxalic dialdehyde 1-2 part, nanometer grade silica 0.5 part, urea 4-6 part, photolysis agent 0.5-0.8 part.
The present invention also provides the preparation method of above-mentioned degradative plastic film, and step is as follows:
(1) prepare gelatinization potato starch: in potato starch, add distilled water, be heated to 90 DEG C, stir 30min, make its complete gelatinization, obtain gelatinization potato starch;
(2) SEP environmental protection raw material is prepared: by Low Density Polyethylene, collagen protein, fat, lactic acid mixing, add appropriate distilled water, heating makes it dissolve, and obtains SEP environmental protection raw material;
(3) by gelatinization potato starch and SEP environmental protection raw material blended, add glycerine plasticising, stir after 35min, add oxalic dialdehyde afterwards and carry out being cross-linked, adjustment pH=3, crosslinked 45min; Then add nanometer grade silica, urea, photolysis agent, stir 25min, mixture is sent into extrusion blow molding machine;
Extrusion blow molding machine No. 1 screw rod working temperature: blanking section 140-150 DEG C, melt zone 160-170 DEG C, fluxing zone 160-175 DEG C, die head section 164-172 DEG C; Extrusion blow molding machine No. 2 screw rod working temperatures: blanking section 138-148 DEG C, melt zone 150-160 DEG C, fluxing zone 155-160 DEG C, die head section 160-175 DEG C; Extrusion blow molding machine No. 3 screw rod working temperatures: blanking section 145-155 DEG C, melt zone 160-170 DEG C, fluxing zone 164-172 DEG C, die head section 160-175 DEG C.Blowing-up technology parameter blow-up ratio 4-6; Draw ratio 2.5-3, obtains degradative plastic film of the present invention.
The present invention is by carrying out modification to potato starch, make polarity difference be difficult to compatible component can combine together well, (starch content can reach 30% so not only can to improve the content of starch in raw material, biodegradable component can reach 55%), prior mechanical property and the use properties improving ground membrane product.Starch content is high, and degradation property is also all right.
Embodiment
Following embodiment is convenient to understand the present invention better, but does not limit the present invention.Experimental technique in following embodiment, if no special instructions, is ordinary method.Test materials used in following embodiment, if no special instructions, is and purchases available from routine biochemistry reagent shop.
embodiment 1
The formula of light of the present invention and microorganism Synergistic degradation mulch film is as follows:
Gelatinization potato starch 10kg, Low Density Polyethylene 25kg, collagen protein 0.6kg, fatty 0.6kg, lactic acid 0.6kg, glycerine 1.5kg, oxalic dialdehyde 1.5kg, nanometer grade silica 0.5kg, urea 5kg, photolysis agent 0.6kg.
Wherein, fat comes from lard, and photolysis agent can select commercially available any one.
The preparation method of above-mentioned light and microorganism Synergistic degradation mulch film is as follows:
(1) prepare gelatinization potato starch: in potato starch, add distilled water, be heated to 90 DEG C, stir 30min, make its complete gelatinization, obtain gelatinization potato starch;
(2) SEP environmental protection raw material is prepared: by Low Density Polyethylene, collagen protein, fat, lactic acid mixing, add appropriate distilled water, heating makes it dissolve, and obtains SEP environmental protection raw material;
(3) by gelatinization potato starch and SEP environmental protection raw material blended, add glycerine plasticising, stir after 35min, add oxalic dialdehyde afterwards and carry out being cross-linked, adjustment pH=3, crosslinked 45min; Then add nanometer grade silica, urea, photolysis agent, stir 25min, mixture is sent into extrusion blow molding machine;
Extrusion blow molding machine No. 1 screw rod working temperature: blanking section 140-150 DEG C, melt zone 160-170 DEG C, fluxing zone 160-175 DEG C, die head section 164-172 DEG C; Extrusion blow molding machine No. 2 screw rod working temperatures: blanking section 138-148 DEG C, melt zone 150-160 DEG C, fluxing zone 155-160 DEG C, die head section 160-175 DEG C; Extrusion blow molding machine No. 3 screw rod working temperatures: blanking section 145-155 DEG C, melt zone 160-170 DEG C, fluxing zone 164-172 DEG C, die head section 160-175 DEG C.Blowing-up technology parameter blow-up ratio 4-6; Draw ratio 2.5-3, obtain degradative plastic film of the present invention, performance is as shown in table 1.
The performance of table 1 degradative plastic film of the present invention
Through test, degradative plastic film of the present invention has the physicals of common ground film, can heat volume increase to farm crop, within 65 to 90 days, starts to decompose, and exposure face can be degraded into and be less than 4*4cm
2fragment, after burying native part 60-80 days, molecular weight declines to a great extent, can fast degradation after routing up soil table.To applicable crops and soil safety, the physicochemical character of soil can not be changed; Static resistance is good, and be applicable to electronic product packaging, membrane product is the thinnest reaches 0.003mm.
The present invention is by carrying out modification to potato starch, make polarity difference be difficult to compatible component can combine together well, (starch content can reach 30% so not only can to improve the content of starch in raw material, biodegradable component can reach 55%), prior mechanical property and the use properties improving ground membrane product.Starch content is high, and degradation property is also all right.
embodiment 2
The formula of light of the present invention and microorganism Synergistic degradation mulch film is as follows:
Gelatinization potato starch 12kg, Low Density Polyethylene 30kg, collagen protein 0.8kg, fatty 0.5kg, lactic acid 0.8kg, glycerine 1kg, oxalic dialdehyde 1kg, nanometer grade silica 0.5kg, urea 6kg, photolysis agent 0.8kg.
The preparation method of the present embodiment is identical with embodiment 1.
embodiment 3
The formula of light of the present invention and microorganism Synergistic degradation mulch film is as follows:
Gelatinization potato starch 8kg, Low Density Polyethylene 20kg, collagen protein 0.5kg, fatty 0.8kg, lactic acid 0.5kg, glycerine 2 kg, oxalic dialdehyde 2 kg, nanometer grade silica 0.5kg, urea 4kg, photolysis agent 0.5kg.
The preparation method of the present embodiment is identical with embodiment 1.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. light and a microorganism Synergistic degradation mulch film, is characterized in that: comprise following component by weight: gelatinization potato starch 8-12 part, Low Density Polyethylene 20-30 part, collagen protein 0.5-0.8 part, fatty 0.5-0.8 part, lactic acid 0.5-0.8 part, glycerine 1-2 part, oxalic dialdehyde 1-2 part, nanometer grade silica 0.5 part, urea 4-6 part, photolysis agent 0.5-0.8 part.
2. the preparation method of degradative plastic film according to claim 1, is characterized in that: step is as follows:
(1) prepare gelatinization potato starch: in potato starch, add distilled water, be heated to 90 DEG C, stir 30min, make its complete gelatinization, obtain gelatinization potato starch;
(2) SEP environmental protection raw material is prepared: by Low Density Polyethylene, collagen protein, fat, lactic acid mixing, add appropriate distilled water, heating makes it dissolve, and obtains SEP environmental protection raw material;
(3) by gelatinization potato starch and SEP environmental protection raw material blended, add glycerine plasticising, stir after 35min, add oxalic dialdehyde afterwards and carry out being cross-linked, adjustment pH=3, crosslinked 45min; Then add nanometer grade silica, urea, photolysis agent, stir 25min, mixture is sent into extrusion blow molding machine;
Extrusion blow molding machine No. 1 screw rod working temperature: blanking section 140-150 DEG C, melt zone 160-170 DEG C, fluxing zone 160-175 DEG C, die head section 164-172 DEG C; Extrusion blow molding machine No. 2 screw rod working temperatures: blanking section 138-148 DEG C, melt zone 150-160 DEG C, fluxing zone 155-160 DEG C, die head section 160-175 DEG C; Extrusion blow molding machine No. 3 screw rod working temperatures: blanking section 145-155 DEG C, melt zone 160-170 DEG C, fluxing zone 164-172 DEG C, die head section 160-175 DEG C;
Blowing-up technology parameter blow-up ratio 4-6; Draw ratio 2.5-3, obtains degradative plastic film of the present invention.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510376426.1A CN104974398B (en) | 2015-07-01 | 2015-07-01 | Mulching film degraded via light-microorganism synergetic degradation, and preparation method thereof |
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| CN201510376426.1A CN104974398B (en) | 2015-07-01 | 2015-07-01 | Mulching film degraded via light-microorganism synergetic degradation, and preparation method thereof |
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| CN104974398A true CN104974398A (en) | 2015-10-14 |
| CN104974398B CN104974398B (en) | 2017-04-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105441041A (en) * | 2015-11-29 | 2016-03-30 | 辽宁石油化工大学 | Cationic type blocking agent for drilling fluid and preparation method of cationic type blocking agent |
| CN105949737A (en) * | 2016-05-31 | 2016-09-21 | 沧州沧硕塑业有限公司 | Degradable mulching film and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101143936A (en) * | 2007-09-05 | 2008-03-19 | 哈尔滨工业大学 | Preparation method for completely biodegraded high amylose starches base thin film |
| CN102268155A (en) * | 2011-07-04 | 2011-12-07 | 王庆昭 | Additive and preparation method thereof as well as full-degradable polyethylene nano compound material and products thereof |
| CN102796285A (en) * | 2011-05-27 | 2012-11-28 | 上海杰事杰新材料(集团)股份有限公司 | Double-degradation starch masterbatch and preparation method thereof |
| CN103304851A (en) * | 2013-07-07 | 2013-09-18 | 华东理工大学 | High-starch-content waterproof totally-decomposed composite material and preparation method thereof |
-
2015
- 2015-07-01 CN CN201510376426.1A patent/CN104974398B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101143936A (en) * | 2007-09-05 | 2008-03-19 | 哈尔滨工业大学 | Preparation method for completely biodegraded high amylose starches base thin film |
| CN102796285A (en) * | 2011-05-27 | 2012-11-28 | 上海杰事杰新材料(集团)股份有限公司 | Double-degradation starch masterbatch and preparation method thereof |
| CN102268155A (en) * | 2011-07-04 | 2011-12-07 | 王庆昭 | Additive and preparation method thereof as well as full-degradable polyethylene nano compound material and products thereof |
| CN103304851A (en) * | 2013-07-07 | 2013-09-18 | 华东理工大学 | High-starch-content waterproof totally-decomposed composite material and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105441041A (en) * | 2015-11-29 | 2016-03-30 | 辽宁石油化工大学 | Cationic type blocking agent for drilling fluid and preparation method of cationic type blocking agent |
| CN105949737A (en) * | 2016-05-31 | 2016-09-21 | 沧州沧硕塑业有限公司 | Degradable mulching film and preparation method thereof |
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| CN104974398B (en) | 2017-04-12 |
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