CN104448498A - Insect killing and oxygen isolating degradable plastic film - Google Patents

Insect killing and oxygen isolating degradable plastic film Download PDF

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Publication number
CN104448498A
CN104448498A CN201410781304.6A CN201410781304A CN104448498A CN 104448498 A CN104448498 A CN 104448498A CN 201410781304 A CN201410781304 A CN 201410781304A CN 104448498 A CN104448498 A CN 104448498A
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plastic film
parts
degradable plastic
desinsection
oxygen barrier
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郝永强
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TIANJIN KAIXUAN PLASTIC PRODUCTS CO Ltd
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TIANJIN KAIXUAN PLASTIC PRODUCTS CO Ltd
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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
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
    • A01N65/40—Liliopsida [monocotyledons]
    • A01N65/46—Stemonaceae [Stemona family], e.g. croomia
    • 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
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/042—Coating with two or more layers, where at least one layer of a composition contains a polymer binder
    • 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
    • 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
    • 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
    • C08L2201/00—Properties
    • C08L2201/14—Gas barrier composition
    • 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
    • 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)
    • 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
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change

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  • Health & Medical Sciences (AREA)
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Abstract

The invention provides an insect killing and oxygen isolating degradable plastic film. The insect killing and oxygen isolating degradable plastic film is prepared by coating both sides of a plastic film with an insecticide and comprises the following components in parts by weight: 40-60 parts of corn starch, 100 parts of low density polyethylene (LDPE), 20-40 parts of pulullan, 10-20 parts of polycarbonate, 2-4 parts of antioxidant, 0.5-1 part of ultraviolet absorber, 4.5-6.5 parts of cedar oil and 6-8 parts of composite filler. The film per m<2> is coated with 4-6g of insecticide slurry. The oxygen isolating degradable plastic film provided by the invention has the advantages and beneficial effects that the plastic film can be automatically decomposed under the actions of rich oxygen and microorganisms; the waste films can be completely decomposed and digested by microorganisms in the natural world to finally generate carbon dioxide and water; the oxygen isolating property of the plastic film can be improved by 40% compared with the oxygen isolating properties of LDPE films in the same thickness; a preparation method of the plastic film is simple in process and high in production efficiency, is easy to implement industrially and can be used for producing the plastic film by using a common plastic film blowing machine.

Description

A kind of desinsection oxygen barrier degradable plastic film
Technical field
The invention belongs to plastic film material field, especially a kind of desinsection oxygen barrier degradable plastic film.
Background technology
Along with food, medicine trade flourish, more urgent than ever to the demand of Novel oxygen insulation wrapping material, exploitation is an important and urgent strategic task with the novel oxygen barrier material for food, drug packaging of research.Current, wrapping material problem of environmental pollution has caused the great attention of countries in the world, and the environment friendly realizing wrapping material has become one of Materials science research most magnetism and challenging direction.
Biodegradable plastic is one of effective way of administering plastic refuse environmental pollution and buffering petroleum resources contradiction, from the packing bag of food to agricultural film, arrive the shell of electric equipment products again, from non-returnable container, edible products to product durable in use, biodegradable plastic just progressively replaces conventional plastic materials, and market outlook are very wide.It is reported, existing tens kinds of the biodegradable plastic kind of current global development, principal item has: the polyhydroxyalkanoate (PHA, PHB, PHBV etc.) of fermentable synthesis, the poly(lactic acid) (PLA), polycaprolactone, dibasic alcohol dicarboxylic acid aliphatic polyester (PBS), aliphatic/aromatic copolyester, CO2/ epoxy compound composition copolymer (APC), polycaprolactone (PCL), polyvinyl alcohol (PVA) etc. of chemosynthesis, natural polymer starch plastics and biodegradable plastic blend, polyblend etc.The kind having entered pilot scale or batch production at present has starch plastics, PHA (PHB, PHBV, PHBH-HX etc.), PLA, PBS, APC, modified PVA, the starch/polyblend such as PVA, PLA, PCL and blend etc.
Starch is a kind of abundance, cheap natural macromolecular material, also be a kind of inexhaustible renewable resources, it can be biodegradable in a variety of environmental conditions, final degraded product CO2 and H2O can carry out recirculation by the photosynthesis of plant, can not cause any pollution to environment.Therefore, starch is widely used in research and the product development of degradable plastics, and has achieved great progress.
At present, the domestic biodegradable packaging film that have developed employing starch and prepared, pertinent literature report is more.Such as, Anlishan Green Environment Science & Technology Co., Ltd., Shenyang invention POL biodegradable plastic and preparation technology [CN1624034]; The biodegradable polypropylene carbonate composite material of one of CNOOC's invention and preparation method thereof [CN101962470]; The poly lactic acid nano composite material of a kind of complete biodegradable of Changchun Applied Chemistry Research Inst., Chinese Academy of Sciences's invention and preparation method thereof [CN101735583]; Sichuan Food Fermentative Industry Design Academy is about the development of fruits and vegetables nano preservative film and [the remaining Wenhua of the applied research in green pepper is fresh-keeping thereof, Li Jiezhi etc. the development of fruits and vegetables nano preservative film and the applied research in green pepper is fresh-keeping thereof. Sichuan food and fermentation, 2008 (5): 28-31]; Fujian Province No.2 Light Industry Research Institute about the degraded LDPE packaging film of starch/cerium stearate balanced constant research [Zhang Huaji. the research of the degraded LDPE packaging film of starch/cerium stearate balanced constant. Chinese Plastics, 1999 (2): 60-65]; Institute of Hua Zhong Agriculture University is about the polyethylene/mechanical property of mineral powder composite degradation film and the research [Wang Jinling of light degradation property, Yin Yeping, Deng. the mechanical property of polyethylene/mineral powder composite degradation film and light degradation property. print during chemical industry, 2006 (3): 6-10].
Current starch plastic experienced by three generation products: the first-generation product starch of 6% ~ 20% and the blend preparation of polyolefine (as PE, PP), belong to starch-filled plastic, the porous polymer staying the next one not degrade again after starch degradation and can not recycling.Its fragment causes more severe contamination to soil, so this kind of starch plastics is called as " false degradative plastics " or " disintegratable plastics ".S-generation product content be greater than 50% starch and hydrophilic polymer carry out blended preparation, stronger physics and chemistry effect is there is between starch and hydrophilic polymer, and exist with external phase, this material shows good biological degradability, workability, economy, practicality, and Technical comparing is ripe.Third generation product is that thermoplastic starch, native starch, amylose starch or high amylose starch are not being added polymkeric substance, all biological degradation type plastic material that extrusion molding or injection moulding obtain under high temperature, high pressure and super-humid conditions, but is still in conceptual phase at present.
But adopt Plastic Packaging Materials prepared by starch at present, the size of biodegradability depends on the height of starch content in system.The plastic film material that starch content is high, although biodegradability is better, thin film material mechanics performance is short of, and film is barrier bad, when being used in the packaging field such as food, medicine, has a strong impact on the quality of packaging because of the ventilation property had in various degree.Therefore, development of new biodegradability is good, mechanical property can meet packaging service requirements, have the attention that the packing plastics film of good oxygen barrier is subject to countries in the world height.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art part, a kind of a kind of desinsection oxygen barrier degradable plastic film with more superior tensile property and elongation at break is provided.
The technical scheme that the present invention realizes object is:
A kind of desinsection oxygen barrier degradable plastic film, it adopts to obtain at the double-coated insecticide of plastics film; Its component and parts by weight are:
And described insecticide slurry is obtained by the raw material blending of following weight parts: polyvinyl alcohol 65-75 part, Chinese medicine deinsectization extract 3-5 part, linking agent TAIC 1-2 part, clorafin 0.3-0.5 part, alcohol ether glucoside 0.3-0.5 part;
And described oxidation inhibitor is antioxidant 1010 or irgasfos 168.
And described UV light absorber is salol or ultraviolet absorbent UV-531.
And described polyethylene wax adopts PE520.
And described Chinese medicine deinsectization extract is obtained by the raw material of following weight parts: safflower 1-2 part, Radix Sophorae Tonkinensis 2-4 part, Golden Larch Bark 1-2 part, tuber of stemona 3-5 part, root of langdu 1-2 part, Shrubalthea Flower 1-3 part, pyrethrum 1-2 part.
And described compounded mix is obtained by the raw material of following weight parts: rhombspar 6-8 part, shell 1-2 part, potassium felspar sand 5-7 part, methyl acrylate 0.1-0.2 part, polyoxyethylene nonylphenol ether 0.1-0.2 part, capsicum seed oil 0.3-0.5 part, magnesium hydroxide 3-6 part.
Advantage of the present invention and beneficial effect are:
1, oxygen barrier provided by the invention and degradable plastic film can automatic classifyings under the effect of oxygen enrichment and microorganism, film after discarded can by the degradable digestion of occurring in nature microorganism, final generation carbonic acid gas and water, can improve 40% compared with the ldpe film oxygen barrier performance of same thickness.Preparation method's technique of the present invention is simple, production efficiency is high, industrializing implementation is easy, available common plastics inflation film manufacturing machine is produced.
2, after the present invention lays, by means of even action insecticide is dissolved on ground of rainwater, the order of deinsectization is reached.Pyrethrum is the feverfew that a kind of existing higher economic worth has again ornamental value, and its root, stem, leaf, flower etc. all contain poisonous insect element material, can be used to the raw material extracting pyrethrin, in order to prepare various sterilant.
Embodiment
Below by specific embodiment, the invention will be further described, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention with this.
If no special instructions, the reagent used in the present invention is conventional reagent; If no special instructions, the method used is ordinary method.
Embodiment 1
(1) a desinsection oxygen barrier degradable plastic film, it adopts to obtain at the double-coated insecticide of plastics film, and described plastics film is obtained by the raw material of following weight (kg):
(2) the insecticide slurry described in is obtained by the raw material blending of following weight parts:
Polyvinyl alcohol 65,
Chinese medicine deinsectization extract 3,
Linking agent TAIC 1,
Clorafin 0.3,
Alcohol ether glucoside 0.3;
(3) the Chinese medicine deinsectization extract described in is obtained by the raw material of following weight parts:
Safflower 1,
Radix Sophorae Tonkinensis 2,
Golden Larch Bark 1,
The tuber of stemona 3,
The root of langdu 1,
Shrubalthea Flower 1,
Pyrethrum 1;
(4) preparation method of the Chinese medicine deinsectization extract described in is: after each raw material blending, adds the water being equivalent to all raw material weights 3 times, and decoct after removing slag, filtrate concentrate drying, to obtain final product;
Described compounded mix is obtained by the raw material of following weight parts:
Rhombspar 6,
Shell 1,
Potassium felspar sand 5,
Methyl acrylate 0.1,
Polyoxyethylene nonylphenol ether 0.1,
Capsicum seed oil 0.3,
Magnesium hydroxide 3.
Embodiment 2
(1) a desinsection oxygen barrier degradable plastic film, it adopts to obtain at the double-coated insecticide of plastics film, and described plastics film is obtained by the raw material of following weight (kg):
(2) the insecticide slurry described in is obtained by the raw material blending of following weight parts:
Polyvinyl alcohol 70,
Chinese medicine deinsectization extract 4,
Linking agent TAIC 1.5,
Clorafin 0.4,
Alcohol ether glucoside 0.4;
(3) the Chinese medicine deinsectization extract described in is obtained by the raw material of following weight parts:
Safflower 1.5,
Radix Sophorae Tonkinensis 3,
Golden Larch Bark 1.5,
The tuber of stemona 4,
The root of langdu 1.5,
Shrubalthea Flower 2,
Pyrethrum 1.5;
(4) preparation method of the Chinese medicine deinsectization extract described in is: after each raw material blending, adds the water being equivalent to all raw material weights 4 times, and decoct after removing slag, filtrate concentrate drying, to obtain final product;
Described compounded mix is obtained by the raw material of following weight parts:
Rhombspar 7,
Shell 1.5,
Potassium felspar sand 6,
Methyl acrylate 0.15,
Polyoxyethylene nonylphenol ether 0.15,
Capsicum seed oil 0.4,
Magnesium hydroxide 4.5.
Embodiment 3
(1) a desinsection oxygen barrier degradable plastic film, it adopts to obtain at the double-coated insecticide of plastics film, and described plastics film is obtained by the raw material of following weight (kg):
(2) the insecticide slurry described in is obtained by the raw material blending of following weight parts:
Polyvinyl alcohol 75,
Chinese medicine deinsectization extract 5,
Linking agent TAIC 2,
Clorafin 0.5,
Alcohol ether glucoside 0.5;
(3) the Chinese medicine deinsectization extract described in is obtained by the raw material of following weight parts:
Safflower 2,
Radix Sophorae Tonkinensis 4,
Golden Larch Bark 2,
The tuber of stemona 5,
The root of langdu 2,
Shrubalthea Flower 3,
Pyrethrum 2;
(4) preparation method of the Chinese medicine deinsectization extract described in is: after each raw material blending, adds the water being equivalent to all raw material weights 5 times, and decoct after removing slag, filtrate concentrate drying, to obtain final product;
Described compounded mix is obtained by the raw material of following weight parts:
Rhombspar 8,
Shell 2,
Potassium felspar sand 7,
Methyl acrylate 0.2,
Polyoxyethylene nonylphenol ether 0.2,
Capsicum seed oil 0.5,
Magnesium hydroxide 6.

Claims (7)

1. a desinsection oxygen barrier degradable plastic film, it adopts to obtain at the double-coated insecticide of plastics film; It is characterized in that:
Its component and parts by weight are:
2. a kind of desinsection oxygen barrier degradable plastic film according to claim 1, is characterized in that: described oxidation inhibitor is antioxidant 1010 or irgasfos 168.
3. a kind of desinsection oxygen barrier degradable plastic film according to claim 1, is characterized in that: described UV light absorber is salol or ultraviolet absorbent UV-531.
4. a kind of desinsection oxygen barrier degradable plastic film according to claim 1, is characterized in that: described polyethylene wax adopts PE520.
5. a kind of desinsection oxygen barrier degradable plastic film according to claim 1, it is characterized in that: described insecticide slurry is obtained by the raw material blending of following weight parts: polyvinyl alcohol 65-75 part, Chinese medicine deinsectization extract 3-5 part, linking agent TAIC 1-2 part, clorafin 0.3-0.5 part, alcohol ether glucoside 0.3-0.5 part.
6. a kind of desinsection oxygen barrier degradable plastic film according to claim 5, it is characterized in that: described Chinese medicine deinsectization extract is obtained by the raw material of following weight parts: safflower 1-2 part, Radix Sophorae Tonkinensis 2-4 part, Golden Larch Bark 1-2 part, tuber of stemona 3-5 part, root of langdu 1-2 part, Shrubalthea Flower 1-3 part, pyrethrum 1-2 part.
7. a kind of desinsection oxygen barrier degradable plastic film according to claim 1, is characterized in that: described compounded mix is obtained by the raw material of following weight parts: rhombspar 6-8 part, shell 1-2 part, potassium felspar sand 5-7 part, methyl acrylate 0.1-0.2 part, polyoxyethylene nonylphenol ether 0.1-0.2 part, capsicum seed oil 0.3-0.5 part, magnesium hydroxide 3-6 part.
CN201410781304.6A 2014-12-16 2014-12-16 Insect killing and oxygen isolating degradable plastic film Pending CN104448498A (en)

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Application publication date: 20150325