CN105566876A - Degradable plastic bag/mulching film and preparation method thereof - Google Patents
Degradable plastic bag/mulching film and preparation method thereof Download PDFInfo
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- CN105566876A CN105566876A CN201610124623.9A CN201610124623A CN105566876A CN 105566876 A CN105566876 A CN 105566876A CN 201610124623 A CN201610124623 A CN 201610124623A CN 105566876 A CN105566876 A CN 105566876A
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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
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/46—Applications of disintegrable, dissolvable or edible materials
- B65D65/466—Bio- or photodegradable packaging materials
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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
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
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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
- 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
- C08J2423/02—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
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
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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
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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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
- 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
- C08L2207/062—HDPE
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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
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Abstract
The invention discloses a degradable plastic bag/mulching film and a preparation method of the degradable plastic bag/mulching film, belongs to the field of degradable macromolecular materials and solves the problems of insufficient load bearing pressure, non-degradability, environment pollution and the like existing in an existing plastic bag/mulching film. The degradable plastic bag is prepared from the following raw materials in percentage by weight: 35 to 45 percent of polyethylene modified material, 34 to 44 percent of polyactic acid, 2 to 5 percent of poly diallyl phthalate and 12 to 18 percent of light decomposing agent, wherein the polyethylene modified material is prepared from the following raw materials in percentage by weight: 51.5 to 59.5 percent of high-density polyethylene, 5 to 7 percent of konjac glucomannan, 9 to 12 percent of maleic anhydride-grafted polyethylene, 12 to 20 percent of calcium carbonate and 10 to 21 percent of corn starch. The degradable plastic bag/mulching film disclosed by the invention can be naturally degraded after being used, has no toxicity and pungent smell and has good biocompatibility, a degradative product of the degradable plastic bag/mulching film can take participate in metabolism of a human body, harmful substances cannot be generated even under a high-temperature condition, the health of the human body cannot be harmed, and the environment cannot be polluted.
Description
Technical field
The invention belongs to degradable high polymer material technical field, be specifically related to a kind of degradable plastic bag/mulch film and preparation method thereof.
Background technology
Plastics bag is article very common during people live, and its daily life all be unable to do without it, and the birth of plastics bag brings great convenience to the life of people.
Mulch film is mainly used in culture underglass process agriculturally, and its Main Function is that insulation heats, and promotes decomposition and the release of soil nutrient, improves farm crop surviving rate.
At present, the plastics bag be seen everywhere manufactures mainly with Low Density Polyethylene (LDEP), be usually used in preservative film, plastic film etc., the plastics bag of this material can produce objectionable impurities under the high temperature conditions, other plastics bags simultaneously on market also also exist many problems, one is that the load-bearing pressure of plastics bag is inadequate, can not stand repeatedly to carry and use, two is plastics bag non-degradables, serious environment pollution, existing plastics bag great majority do not possess degradability, and most of plastics bag non-degradable, cause serious white pollution.
At present, domestic and have indivedual advanced enterprises to work out degredation plastic bag in the world, but due to its complex manufacturing, production cost is high, the thickness of product and tensile strength cannot reach reinforcement, are thus difficult to commercially be promoted effectively, make its application cause very large restriction.
Summary of the invention
In order to problems such as the load-bearing pressure solving existing plastics bag/mulch film existence is inadequate, non-degradable, contaminate environment, the invention provides a kind of degradable plastic bag/mulch film and preparation method thereof.
The technical scheme that the present invention adopts for technical solution problem is as follows:
A kind of degradable plastic bag, according to weight percent meter, comprises following component: polyethylene modified material 35 ~ 45%, poly(lactic acid) 34 ~ 44%, PDAP 2 ~ 5% and photolysis agent 12 ~ 18%;
Described polyethylene modified material, according to weight percent meter, comprises following component: high density polyethylene(HDPE) 51.5 ~ 59.5%, Rhizoma amorphophalli glucomannan 5 ~ 7%, Research of Grafting Malaic Anhydride Onto Polyethylene 9 ~ 12%, calcium carbonate 12 ~ 20% and W-Gum 10 ~ 21%.
As preferred embodiment, described photolysis agent is para benzoquinone, benzanthrene chinol, tectoquinone alcohol or naphthoquinones.
As preferred embodiment, according to weight percent meter, comprise following component: polyethylene modified material 40%, poly(lactic acid) 40%, PDAP 3.5% and photolysis agent 15%.
As preferred embodiment, described polyethylene modified material, according to weight percent meter, comprises following component: high density polyethylene(HDPE) 55%, Rhizoma amorphophalli glucomannan 6%, Research of Grafting Malaic Anhydride Onto Polyethylene 11%, calcium carbonate 16% and W-Gum 15%.
Present invention also offers the preparation method of above-mentioned a kind of degradable plastic bag, comprise the following steps: polyethylene modified material, poly(lactic acid), PDAP and photolysis agent are mixed according to above-mentioned weight percent, the mixture of acquisition is joined in inflation film manufacturing machine, be warming up to 195 ~ 225 DEG C, blowing 30 ~ 40min, join in bag machine after product cooling, obtain the degradable plastic bag of required specification.
Present invention also offers a kind of degradable mulch, according to weight percent meter, comprise following component: polyethylene modified material 35 ~ 45%, poly(lactic acid) 34 ~ 44%, PDAP 2 ~ 5% and photolysis agent 12 ~ 18%;
Described polyethylene modified material, according to weight percent meter, comprises following component: high density polyethylene(HDPE) 51.5 ~ 59.5%, Rhizoma amorphophalli glucomannan 5 ~ 7%, Research of Grafting Malaic Anhydride Onto Polyethylene 9 ~ 12%, calcium carbonate 12 ~ 20% and W-Gum 10 ~ 21%.
As preferred embodiment, described photolysis agent is para benzoquinone, benzanthrene chinol, tectoquinone alcohol or naphthoquinones.
As preferred embodiment, according to weight percent meter, comprise following component: polyethylene modified material 39%, poly(lactic acid) 40%, PDAP 3% and photolysis agent 14%.
As preferred embodiment, described polyethylene modified material, according to weight percent meter, comprises following component: high density polyethylene(HDPE) 54%, Rhizoma amorphophalli glucomannan 6%, Research of Grafting Malaic Anhydride Onto Polyethylene 10%, calcium carbonate 15% and W-Gum 16%.
Present invention also offers the preparation method of above-mentioned a kind of degradable mulch, comprise the following steps: polyethylene modified material, poly(lactic acid), PDAP and photolysis agent are mixed according to above-mentioned weight percent, by the mixture cast film machine casting film-forming obtained, adopt banding machine cutting, obtain the degradable mulch of required specification.
The invention has the beneficial effects as follows:
Degradable plastic bag/mulch film of the present invention mainly adopts the degradable high polymer material such as polyethylene modified material and poly(lactic acid) to make.
The polyethylene modified material that the present invention adopts, there is good film-forming properties and water-retentivity, and tensile strength is large, longer weight bearing situations can be remained on, thus make the thickness of degradable plastic bag/mulch film of the present invention and tensile strength be obtained for reinforcement, tensile strength is large, improve the toughness of plastics bag, load-bearing pressure strengthens greatly, can stand repeatedly to carry and use, simultaneously, degradable plastic bag of the present invention/mulch film fully biodegradable, environmental protection low-carbon (LC), and it is nontoxic high temperature resistant, the food of direct contact food or comparatively high temps also can not cause the toxin transport phenomena of material.Because the Rhizoma amorphophalli glucomannan in polyethylene modified material has water-retentivity, can make the state that degradable plastic bag of the present invention/mulch film keeps comparatively dry, the food waste wherein held is not easy to go bad, smelly, not easily broken, easily degrade, avoid environment.
Poly(lactic acid) is also named poly-third to hand over fat code name PLA to be commonly called as corn, is a kind of synthesis of complete biodegradable, produces with plant material, goods abandon after in soil or seawater microbial process be decomposed into carbonic acid gas and water, burning can not be distributed toxic gas and be polluted.Degradable plastic bag/mulch film of the present invention is a kind of real biological plastics bag/mulch film, can natural degradation after this plastics bag/mulch film uses, nontoxic, have no irritating odor, there is good biocompatibility, the product of its degraded can participate in the metabolism of human body, also can not produce objectionable impurities under the high temperature conditions, not entail dangers to HUMAN HEALTH, do not pollute the environment, can commercially promoting the use of energetically.
The production technique of degradable plastic bag/mulch film of the present invention is simple, draws materials conveniently, cheap, and production cost significantly reduces.
Embodiment
The invention discloses a kind of degradable plastic bag/mulch film and preparation method thereof, those skilled in the art can use for reference present disclosure, and suitable improving technique parameter realizes.Special needs to be pointed out is, all similar replacements and change apparent to those skilled in the art, they are all deemed to be included in the present invention.Product of the present invention is described by preferred embodiment, related personnel obviously can not depart from content of the present invention, spirit and scope product as herein described is changed or suitably change with combination, realize and apply the technology of the present invention.
Embodiment 1
Degradable plastic bag of the present invention, according to weight percent meter, comprises following component: polyethylene modified material 45%, poly(lactic acid) 34%, PDAP 2% and benzoquinones 18%;
Described polyethylene modified material, according to weight percent meter, comprises following component: high density polyethylene(HDPE) 51.5%, Rhizoma amorphophalli glucomannan 7%, Research of Grafting Malaic Anhydride Onto Polyethylene 9%, calcium carbonate 20% and W-Gum 21%.
Polyethylene modified material, poly(lactic acid), PDAP and benzoquinones are mixed according to above-mentioned weight percent, the mixture of acquisition is joined in inflation film manufacturing machine, be warming up to 195 DEG C, blowing 40min, join in bag machine after product cooling, obtain the degradable plastic bag of required specification.
Embodiment 2
Degradable plastic bag of the present invention, according to weight percent meter, comprises following component: polyethylene modified material 35%, poly(lactic acid) 44%, PDAP 5% and benzanthrene chinol 12%;
Described polyethylene modified material, according to weight percent meter, comprises following component: high density polyethylene(HDPE) 59.5%, Rhizoma amorphophalli glucomannan 5%, Research of Grafting Malaic Anhydride Onto Polyethylene 12%, calcium carbonate 12% and W-Gum 10%.
Polyethylene modified material, poly(lactic acid), PDAP and benzanthrene chinol are mixed according to above-mentioned weight percent, the mixture of acquisition is joined in inflation film manufacturing machine, be warming up to 225 DEG C, blowing 30min, join in bag machine after product cooling, obtain the degradable plastic bag of required specification.
Embodiment 3
Degradable plastic bag of the present invention, according to weight percent meter, comprises following component: polyethylene modified material 40%, poly(lactic acid) 40%, PDAP 3.5% and tectoquinone alcohol 15%;
Described polyethylene modified material, according to weight percent meter, comprises following component: high density polyethylene(HDPE) 55%, Rhizoma amorphophalli glucomannan 6%, Research of Grafting Malaic Anhydride Onto Polyethylene 11%, calcium carbonate 16% and W-Gum 15%.
Polyethylene modified material, poly(lactic acid), PDAP and tectoquinone alcohol are mixed according to above-mentioned weight percent, the mixture of acquisition is joined in inflation film manufacturing machine, be warming up to 200 DEG C, blowing 35min, join in bag machine after product cooling, obtain the degradable plastic bag of required specification.
Embodiment 4
Degradable plastic bag of the present invention, according to weight percent meter, comprises following component: polyethylene modified material 42.5%, poly(lactic acid) 37.8%, PDAP 4% and naphthoquinones 16%;
Described polyethylene modified material, according to weight percent meter, comprises following component: high density polyethylene(HDPE) 57.5%, Rhizoma amorphophalli glucomannan 6.5%, Research of Grafting Malaic Anhydride Onto Polyethylene 10%, calcium carbonate 18% and W-Gum 14%.
Polyethylene modified material, poly(lactic acid), PDAP and naphthoquinones are mixed according to above-mentioned weight percent, the mixture of acquisition is joined in inflation film manufacturing machine, be warming up to 210 DEG C, blowing 37min, join in bag machine after product cooling, obtain the degradable plastic bag of required specification.
Embodiment 5
Degradable mulch of the present invention, according to weight percent meter, comprises following component: polyethylene modified material 39%, poly(lactic acid) 40%, PDAP 3% and naphthoquinones 14%;
Described polyethylene modified material, according to weight percent meter, comprises following component: high density polyethylene(HDPE) 59.5%, Rhizoma amorphophalli glucomannan 7%, Research of Grafting Malaic Anhydride Onto Polyethylene 9%, calcium carbonate 12% and W-Gum 21%.
Polyethylene modified material, poly(lactic acid), PDAP and naphthoquinones are mixed according to above-mentioned weight percent, by the mixture cast film machine casting film-forming obtained, adopts banding machine cutting, obtain the degradable mulch of required specification.
Embodiment 6
Degradable mulch of the present invention, according to weight percent meter, comprises following component: polyethylene modified material 35%, poly(lactic acid) 34%, PDAP 5% and tectoquinone alcohol 12%;
Described polyethylene modified material, according to weight percent meter, comprises following component: high density polyethylene(HDPE) 54%, Rhizoma amorphophalli glucomannan 6%, Research of Grafting Malaic Anhydride Onto Polyethylene 10%, calcium carbonate 15% and W-Gum 16%.
Polyethylene modified material, poly(lactic acid), PDAP and tectoquinone alcohol are mixed according to above-mentioned weight percent, by the mixture cast film machine casting film-forming obtained, adopts banding machine cutting, obtain the degradable mulch of required specification.
Embodiment 7
Degradable mulch of the present invention, according to weight percent meter, comprises following component: polyethylene modified material 40%, poly(lactic acid) 38%, PDAP 4% and benzanthrene chinol 16%;
Described polyethylene modified material, according to weight percent meter, comprises following component: high density polyethylene(HDPE) 51.5%, Rhizoma amorphophalli glucomannan 5%, Research of Grafting Malaic Anhydride Onto Polyethylene 12%, calcium carbonate 20% and W-Gum 10%.
Polyethylene modified material, poly(lactic acid), PDAP and benzanthrene chinol are mixed according to above-mentioned weight percent, by the mixture cast film machine casting film-forming obtained, adopts banding machine cutting, obtain the degradable mulch of required specification.
Embodiment 8
Degradable mulch of the present invention, according to weight percent meter, comprises following component: polyethylene modified material 45%, poly(lactic acid) 44%, PDAP 2% and para benzoquinone 18%;
Described polyethylene modified material, according to weight percent meter, comprises following component: high density polyethylene(HDPE) 56.5%, Rhizoma amorphophalli glucomannan 5.5%, Research of Grafting Malaic Anhydride Onto Polyethylene 11%, calcium carbonate 19% and W-Gum 14%.
Polyethylene modified material, poly(lactic acid), PDAP and para benzoquinone are mixed according to above-mentioned weight percent, by the mixture cast film machine casting film-forming obtained, adopts banding machine cutting, obtain the degradable mulch of required specification.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a degradable plastic bag, is characterized in that, according to weight percent meter, comprises following component: polyethylene modified material 35 ~ 45%, poly(lactic acid) 34 ~ 44%, PDAP 2 ~ 5% and photolysis agent 12 ~ 18%;
Described polyethylene modified material, according to weight percent meter, comprises following component: high density polyethylene(HDPE) 51.5 ~ 59.5%, Rhizoma amorphophalli glucomannan 5 ~ 7%, Research of Grafting Malaic Anhydride Onto Polyethylene 9 ~ 12%, calcium carbonate 12 ~ 20% and W-Gum 10 ~ 21%.
2. a kind of degradable plastic bag according to claim 1, is characterized in that, described photolysis agent is para benzoquinone, benzanthrene chinol, tectoquinone alcohol or naphthoquinones.
3. a kind of degradable plastic bag according to claim 1, is characterized in that, according to weight percent meter, comprises following component: polyethylene modified material 40%, poly(lactic acid) 40%, PDAP 3.5% and photolysis agent 15%.
4. a kind of degradable plastic bag according to claim 1 or 3, it is characterized in that, described polyethylene modified material, according to weight percent meter, comprise following component: high density polyethylene(HDPE) 55%, Rhizoma amorphophalli glucomannan 6%, Research of Grafting Malaic Anhydride Onto Polyethylene 11%, calcium carbonate 16% and W-Gum 15%.
5. prepare the method for a kind of degradable plastic bag described in claim 1-4 any one, it is characterized in that, comprise the following steps: polyethylene modified material, poly(lactic acid), PDAP and photolysis agent are mixed according to above-mentioned weight percent, the mixture of acquisition is joined in inflation film manufacturing machine, be warming up to 195 ~ 225 DEG C, blowing 30 ~ 40min, joins in bag machine after product cooling, obtains the degradable plastic bag of required specification.
6. a degradable mulch, is characterized in that, according to weight percent meter, comprises following component: polyethylene modified material 35 ~ 45%, poly(lactic acid) 34 ~ 44%, PDAP 2 ~ 5% and photolysis agent 12 ~ 18%;
Described polyethylene modified material, according to weight percent meter, comprises following component: high density polyethylene(HDPE) 51.5 ~ 59.5%, Rhizoma amorphophalli glucomannan 5 ~ 7%, Research of Grafting Malaic Anhydride Onto Polyethylene 9 ~ 12%, calcium carbonate 12 ~ 20% and W-Gum 10 ~ 21%.
7. a kind of degradable mulch according to claim 6, is characterized in that, described photolysis agent is para benzoquinone, benzanthrene chinol, tectoquinone alcohol or naphthoquinones.
8. a kind of degradable mulch according to claim 6, is characterized in that, according to weight percent meter, comprises following component: polyethylene modified material 39%, poly(lactic acid) 40%, PDAP 3% and photolysis agent 14%.
9. a kind of degradable mulch according to claim 6 or 8, it is characterized in that, described polyethylene modified material, according to weight percent meter, comprise following component: high density polyethylene(HDPE) 54%, Rhizoma amorphophalli glucomannan 6%, Research of Grafting Malaic Anhydride Onto Polyethylene 10%, calcium carbonate 15% and W-Gum 16%.
10. prepare the method for a kind of degradable mulch described in claim 6-9 any one, it is characterized in that, comprise the following steps: polyethylene modified material, poly(lactic acid), PDAP and photolysis agent are mixed according to above-mentioned weight percent, by the mixture cast film machine casting film-forming obtained, adopt banding machine cutting, obtain the degradable mulch of required specification.
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| CN201610124623.9A CN105566876A (en) | 2016-03-04 | 2016-03-04 | Degradable plastic bag/mulching film and preparation method thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106084378A (en) * | 2016-06-16 | 2016-11-09 | 兰州鑫银环橡塑制品有限公司 | A kind of degradable mulch |
| CN106117750A (en) * | 2016-07-28 | 2016-11-16 | 芜湖凯奥尔环保科技有限公司 | Photodegradable plastics thin film |
| CN107216595A (en) * | 2017-07-18 | 2017-09-29 | 合肥峰腾节能科技有限公司 | A kind of Environment-friendlypreservative preservative film and its production technology |
| CN107868279A (en) * | 2016-09-22 | 2018-04-03 | 明钛塑胶有限公司 | Calcium carbonate and its polynary application in Plastic articles for use after modification |
| CN107955251A (en) * | 2017-12-05 | 2018-04-24 | 广东天元实业集团股份有限公司 | Degradable courier bag material |
| CN112961421A (en) * | 2021-02-19 | 2021-06-15 | 厦门竣众升新材料有限公司 | Polymer plastic |
| CN114752134A (en) * | 2022-06-15 | 2022-07-15 | 河北上东包装科技有限公司 | Polyethylene easily-torn film |
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