CN101348579A - Industrial production method of wholly-degradable edible food packaging material - Google Patents
Industrial production method of wholly-degradable edible food packaging material Download PDFInfo
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- CN101348579A CN101348579A CNA2008100645928A CN200810064592A CN101348579A CN 101348579 A CN101348579 A CN 101348579A CN A2008100645928 A CNA2008100645928 A CN A2008100645928A CN 200810064592 A CN200810064592 A CN 200810064592A CN 101348579 A CN101348579 A CN 101348579A
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000005003 food packaging material Substances 0.000 title claims abstract description 16
- 238000009776 industrial production Methods 0.000 title 1
- 229920002472 Starch Polymers 0.000 claims abstract description 67
- 235000019698 starch Nutrition 0.000 claims abstract description 67
- 239000008107 starch Substances 0.000 claims abstract description 67
- 239000000463 material Substances 0.000 claims abstract description 46
- 238000002156 mixing Methods 0.000 claims abstract description 18
- 230000005855 radiation Effects 0.000 claims abstract description 12
- 244000061456 Solanum tuberosum Species 0.000 claims abstract description 8
- 235000002595 Solanum tuberosum Nutrition 0.000 claims abstract description 8
- 241000209140 Triticum Species 0.000 claims abstract description 8
- 235000021307 Triticum Nutrition 0.000 claims abstract description 8
- 240000008042 Zea mays Species 0.000 claims abstract description 8
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims abstract description 8
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims abstract description 8
- 238000005275 alloying Methods 0.000 claims abstract description 8
- 235000005822 corn Nutrition 0.000 claims abstract description 8
- 238000012986 modification Methods 0.000 claims description 22
- 230000004048 modification Effects 0.000 claims description 22
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 20
- 239000004033 plastic Substances 0.000 claims description 14
- 229920003023 plastic Polymers 0.000 claims description 14
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 claims description 10
- 239000004408 titanium dioxide Substances 0.000 claims description 10
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 9
- 150000004291 polyenes Chemical class 0.000 claims description 9
- 235000012424 soybean oil Nutrition 0.000 claims description 9
- 239000003549 soybean oil Substances 0.000 claims description 9
- 240000003183 Manihot esculenta Species 0.000 claims description 7
- 235000016735 Manihot esculenta subsp esculenta Nutrition 0.000 claims description 7
- 235000013312 flour Nutrition 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 7
- 238000013467 fragmentation Methods 0.000 claims description 6
- 238000006062 fragmentation reaction Methods 0.000 claims description 6
- 230000002285 radioactive effect Effects 0.000 claims description 6
- 239000004902 Softening Agent Substances 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 235000013305 food Nutrition 0.000 abstract description 7
- 239000005022 packaging material Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000654 additive Substances 0.000 abstract description 3
- 230000015556 catabolic process Effects 0.000 abstract 2
- 238000006731 degradation reaction Methods 0.000 abstract 2
- 238000004806 packaging method and process Methods 0.000 abstract 2
- 244000151018 Maranta arundinacea Species 0.000 abstract 1
- 235000010804 Maranta arundinacea Nutrition 0.000 abstract 1
- 235000012419 Thalia geniculata Nutrition 0.000 abstract 1
- 238000003490 calendering Methods 0.000 abstract 1
- 238000005265 energy consumption Methods 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 abstract 1
- 230000005251 gamma ray Effects 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 238000003856 thermoforming Methods 0.000 abstract 1
- 239000010408 film Substances 0.000 description 10
- 238000011160 research Methods 0.000 description 9
- 238000009447 edible packaging Methods 0.000 description 5
- 108090000623 proteins and genes Proteins 0.000 description 5
- 102000004169 proteins and genes Human genes 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 229920000945 Amylopectin Polymers 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 description 1
- LRWZZZWJMFNZIK-UHFFFAOYSA-N 2-chloro-3-methyloxirane Chemical compound CC1OC1Cl LRWZZZWJMFNZIK-UHFFFAOYSA-N 0.000 description 1
- 229920000856 Amylose Polymers 0.000 description 1
- 229920002101 Chitin Polymers 0.000 description 1
- 229920001661 Chitosan Polymers 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 108010028688 Isoamylase Proteins 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- 125000002791 glucosyl group Chemical group C1([C@H](O)[C@@H](O)[C@H](O)[C@H](O1)CO)* 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 238000006897 homolysis reaction Methods 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000010977 jade Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002114 nanocomposite Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000747 poly(lactic acid) Polymers 0.000 description 1
- 239000004626 polylactic acid Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 235000010413 sodium alginate Nutrition 0.000 description 1
- 239000000661 sodium alginate Substances 0.000 description 1
- 229940005550 sodium alginate Drugs 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Images
Classifications
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
-
- 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 provides an industrialized production method for edible full degradation food packaging material. The method comprises the following steps of firstly crushing corn, potato, wheat arrow root starch physically, and modifying the starch through Co<60> Gamma -ray radiation to micronize the starch, improve the flowability, filling capability and mechanical properties of the starch, and obtain the starch with high disorder degree and good plasticity; co-mixing the starch and a certain amount of additives, and turning the starch into sheet material through the alloying extrusion and calendering through a twin-screw machine; and preparing the starch-based packaging material through the processes of thermoforming, die stamping, etc. The food packaging material prepared by the method is completely degradable and meets the state food hygienic standards. The whole process has environmental protection and low energy consumption; and the simple and economical process flow facilitates the realization of industrialized production. The edible full degradation food packaging material which takes renewable resources as raw materials can replace petroleum-based packaging material and alleviate the pressure of the food packaging industry on the environment and the dependency of the food packaging industry on nonrenewable resources such as fossil.
Description
One, technical field
What the present invention relates to is a kind of making method of wrapping material, specifically a kind of Co that utilizes
60The gamma-radiation radiation obtains the industrial method that treated starch prepares wholly-degradable edible food packaging material.
Two, background technology
Edibility degraded packaging material for food is the advanced subject of new millennium investigation of materials.The edible packaging diverse in function, harmless environment is drawn materials conveniently, can be edible, therefore developed country's grocery trade is competitively developed in recent years, and the product innovation new technology constantly occurs.
The U.S. has many developments group to carry out the research of each side, and to heterogeneity edible fresh-keeping thin film study, Roger Clemens university is to the research of protein edible film as University of Minnesota, and University of Wisconsin is to the research of polysaccharide fat edible film etc.Japan and Germany have also carried out extensive studies.What deserves to be mentioned is that the U.S. and Japan have accumulated a large amount of patented technologies.
At present, the packaging material for food of " degradable " is also just carried out by China, progressively forbids the use of non-degradable material, and next step developing direction also is " edible packaging " material.About the research of edible packaging,, study less abroad with respect to starting late.Multi-functional edibility container has two kinds of research tendencies at present.The one, starch+protein material, the 2nd, Mierocrystalline cellulose+protein material.For edible film, mainly study filming of fruit freshness preserving.About the edibility degradable material, the research of China has also obtained some progress, has obtained some patents.For starch-based material, the starch conversion of Changchun applied chemistry institute; Human isoamylases such as high group jade can make the amylopectin in the starch take off and prop up and formation chain starch, thereby improve the film forming properties and the intensity of starch film; The adjacent Weihe of Liu of Northwest Agricultural University is by being linking agent with epoxy chloropropane and the acid of binary carbonyl, the W-Gum film carried out suitable cross-linking modified, makes the raising of starch film tensile property, saturating wet and ventilation property reduction, water-soluble portion descends, and good mouthfeel has been obtained better better effect; Yang Yigong, Chen Xiaoling make the edible starch film with enzyme process one esterification complex denaturation under laboratory condition.China develops W-Gum sodium alginate or chitosan composite package film, has stronger tensile strength and unit elongation, and good water tolerance; For protein-based material, also obtain some progress, but because protein three, quaternary structure are lacked understanding, fundamental research has to be strengthened.Other carbohydrate are also studied, and carried out chitin film as people such as Le Peisi the fruit vegetable fresh-keeping effect is studied.
China has also obtained some progress for the fully-degradable food packing material aspect, and Wuhan University of Technology has worked out a kind of method of full-biodegradable polylactic acid nano composite material.But, be not suitable for suitability for industrialized production because the cost of this method is higher.Generally speaking, present research is deep not enough, not enough system, but there is not the cost of acquisition preparation of industrialization lower, the edible packaging material of technical maturity.Await faster darker research, acquisition has the preparation of industrialization of the edible packaging material of independent intellectual property right.
Three, summary of the invention
The object of the present invention is to provide the industrialized preparing process that a kind of production cost is low, be convenient to industrialized wholly-degradable edible food packaging material.
The object of the present invention is achieved like this:
Pass through Co
60The gamma-rays radiation is carried out modification to common starch, and dose rate is 10Gymin
- 1
The present invention can also comprise:
1, after modification, adds 4wt.% oxidation soybean oil in the starch material as softening agent.
2, after modification, add 3wt.% maleic anhydride graft polyene in the starch material as expanding material.
3, after modification, add 1wt.% titanium dioxide, 2.4wt.% Tegin 55G in the starch material.
4, with corn, potato, wheat, the fragmentation of tapioca (flour) physics, pass through Co
60The radiation of radioactive source is carried out modification to starch, with Co
60Adding 4wt.% epoxidised soybean oil, 3wt.% maleic anhydride graft polyene, 1wt.% titanium dioxide, 2.4wt.% Tegin 55G carry out mechanically mixing in the starch after the modification.Mixed material is positioned over high mixing in the jar, and 130 ℃ of temperature, pressure is mixing 30min under the 15MPa, extrudes, rolls into the thick starch plastics sheet material of 1.0～2.0mm through twin screw machinery alloying, through prepared starch base wrapping material such as plastic uptake, mold pressings.
Product of the present invention is to adopt such method to make: at first with corn, potato, wheat, the fragmentation of tapioca (flour) physics, pass through Co
60The radiation of radioactive source is carried out modification to starch, makes the starch ultramicronising, improves the flowability and the fillibility of starch, has improved its mechanical property, obtains degree of disorder height, the starch that plasticity is good.Such starch and certain quantity of additive are carried out blend, extrude, roll into sheet material through twin screw machinery alloying.Through prepared starch base wrapping material such as plastic uptake, mold pressings.
The mechanical property of starch plastics sheet material is carried out the test of tensile strength and elongation according to GB 453-79, and tensile strength is 90MPa, and elongation is 80%.
Packaging material for food detects according to GB 18006.1-1999 degradable disposable dinner (beverage) containers general technical specifications, as a result conformance with standard.
Four, description of drawings
Fig. 1 is the amylose molecule structure;
Fig. 2 is the amylopectin molecular structure.
Five, embodiment
For a more detailed description to the present invention below:
1, corn, potato, wheat, tapioca (flour) are passed through the pulverising mill physical pulverization, make the starch ultramicronising, its objective is and improve material dispersed, adsorptivity, solvability, chemically reactive etc., thereby improve physics, the chemical property of powder.
2, Co
60Gamma-radiation carries out radiation to material, and radiation dose rate is 10Gymin
-1, play modifying function to starch.Ative starch (as Fig. 1,2) is with glucose α-1,4-glycosidic link and α-1, the superpolymer that 6 glycosidic links are polymerized, glycosidic link in its molecular structure and the hydroxyl in the glucose unit are determining its chemical property, also are the possible internal factors of the various sex change of starch.And the existence of hydroxyl has stronger wetting ability, is not suitable for using in the environment that water or high humidity are arranged.Gamma-radiation is the photon stream that discharges in the radio isotope nuclear disintegration process, has high-energy, long-range, strong penetrating power.For superpolymer, the high-energy regular meeting of gamma-radiation causes polymer chain break, crosslinked, and chemical bond destroys the oxidation with some functional group, and the original structure of superpolymer is changed.Exist number of chemical keys such as C-O key, c h bond, C-C key, hydrogen bond in the starch polymer long-chain, after hydrogen bond destroyed, the starch molecule interchain lost bonding force, and structure is disordering then; α-1.4 glycosidic link is the key of easy fracture, since its fracture, the starch molecule degraded, and the polymerization degree reduces.When chemical bond be fractured into homolysis the time, then form the starch free radical.Thereby ative starch has been carried out modification, obtained degree of disorder height, plasticity is good, polyradical, the starch of water-tolerant.Thereby avoided adding additive such as linking agent, initiator and the problem of can not degrading of causing and inedibility.
3, carry out mechanically mixing with adding epoxidised soybean oil (softening agent), maleic anhydride graft polyene (expanding material), titanium dioxide, Tegin 55G etc. in the starch after the modification.Its add-on is: the 4wt.% epoxidised soybean oil of starch, 3wt.% maleic anhydride graft polyene, 1wt.% titanium dioxide, 2.4wt.% Tegin 55G.
4, mixed material is positioned over high mixing in the jar, 130 ℃ of temperature, pressure is mixing 30min under the 15MPa, extrudes, rolls into the thick starch plastics sheet material of 1.0～2.0mm through twin screw machinery alloying, through prepared starch base wrapping material such as plastic uptake, mold pressings.
Claims (9)
1, a kind of industrialized preparing process of wholly-degradable edible food packaging material is characterized in that: pass through Co
60The gamma-rays radiation is carried out modification to common starch, and dose rate is 10Gymin
-1
2, the industrialized preparing process of wholly-degradable edible food packaging material according to claim 1 is characterized in that: add 4wt.% oxidation soybean oil in the starch material as softening agent after modification.
3, the industrialized preparing process of wholly-degradable edible food packaging material according to claim 1 and 2 is characterized in that: add 3wt.% maleic anhydride graft polyene in the starch material as expanding material after modification.
4, the industrialized preparing process of wholly-degradable edible food packaging material according to claim 1 and 2 is characterized in that: add 1wt.% titanium dioxide, 2.4wt.% Tegin 55G after modification in the starch material.
5, the industrialized preparing process of wholly-degradable edible food packaging material according to claim 3 is characterized in that: add 1wt.% titanium dioxide, 2.4wt.% Tegin 55G after modification in the starch material.
6, the industrialized preparing process of wholly-degradable edible food packaging material according to claim 1 and 2 is characterized in that: with corn, potato, wheat, the fragmentation of tapioca (flour) physics, pass through Co
60The radiation of radioactive source is carried out modification to starch, with Co
60Adding 4wt.% epoxidised soybean oil, 3wt.% maleic anhydride graft polyene, 1wt.% titanium dioxide, 2.4wt.% Tegin 55G carry out mechanically mixing in the starch after the modification; Mixed material is positioned over high mixing in the jar, and 130 ℃ of temperature, pressure is mixing 30min under the 15MPa, extrudes, rolls into the thick starch plastics sheet material of 1.0～2.0mm through twin screw machinery alloying, prepares the starch base wrapping material through plastic uptake, mould pressing process.
7, the industrialized preparing process of wholly-degradable edible food packaging material according to claim 3 is characterized in that: with corn, potato, wheat, the fragmentation of tapioca (flour) physics, pass through Co
60The radiation of radioactive source is carried out modification to starch, with Co
60Adding 4wt.% epoxidised soybean oil, 3wt.% maleic anhydride graft polyene, 1wt.% titanium dioxide, 2.4wt.% Tegin 55G carry out mechanically mixing in the starch after the modification; Mixed material is positioned over high mixing in the jar, and 130 ℃ of temperature, pressure is mixing 30min under the 15MPa, extrudes, rolls into the thick starch plastics sheet material of 1.0～2.0mm through twin screw machinery alloying, prepares the starch base wrapping material through plastic uptake, mould pressing process.
8, the industrialized preparing process of wholly-degradable edible food packaging material according to claim 4 is characterized in that: with corn, potato, wheat, the fragmentation of tapioca (flour) physics, pass through Co
60The radiation of radioactive source is carried out modification to starch, with Co
60Adding 4wt.% epoxidised soybean oil, 3wt.% maleic anhydride graft polyene, 1wt.% titanium dioxide, 2.4wt.% Tegin 55G carry out mechanically mixing in the starch after the modification; Mixed material is positioned over high mixing in the jar, and 130 ℃ of temperature, pressure is mixing 30min under the 15MPa, extrudes, rolls into the thick starch plastics sheet material of 1.0～2.0mm through twin screw machinery alloying, prepares the starch base wrapping material through plastic uptake, mould pressing process.
9, the industrialized preparing process of wholly-degradable edible food packaging material according to claim 5 is characterized in that: with corn, potato, wheat, the fragmentation of tapioca (flour) physics, pass through Co
60The radiation of radioactive source is carried out modification to starch, with Co
60Adding 4wt.% epoxidised soybean oil, 3wt.% maleic anhydride graft polyene, 1wt.% titanium dioxide, 2.4wt.% Tegin 55G in the starch after the modification carries out the mixed material of mechanically mixing and is positioned in high mix jar, 130 ℃ of temperature, pressure is mixing 30min under the 15MPa, extrude, roll into the thick starch plastics sheet material of 1.0～2.0mm through twin screw machinery alloying, prepare the starch base wrapping material through plastic uptake, mould pressing process.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100645928A CN101348579A (en) | 2008-05-27 | 2008-05-27 | Industrial production method of wholly-degradable edible food packaging material |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100645928A CN101348579A (en) | 2008-05-27 | 2008-05-27 | Industrial production method of wholly-degradable edible food packaging material |
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| CN101348579A true CN101348579A (en) | 2009-01-21 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102417614A (en) * | 2011-08-16 | 2012-04-18 | 河南省南街村（集团）有限公司 | Method for preparing fully-degradable starch plastic master batch |
| CN102443196A (en) * | 2011-10-18 | 2012-05-09 | 河南工业大学 | Radiation modified starch biological degrading material and preparation method thereof |
| CN103849010A (en) * | 2014-02-23 | 2014-06-11 | 江苏省农业科学院 | Irradiated corn starch-based biodegradable particles and thin film thereof |
| CN103881148A (en) * | 2014-02-23 | 2014-06-25 | 江苏省农业科学院 | Preparation method for radiated corn starch-based biodegradation particles |
| CN110606993A (en) * | 2019-10-28 | 2019-12-24 | 南京财经大学 | Waterproof starch section bar and preparation method and application thereof |
-
2008
- 2008-05-27 CN CNA2008100645928A patent/CN101348579A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102417614A (en) * | 2011-08-16 | 2012-04-18 | 河南省南街村（集团）有限公司 | Method for preparing fully-degradable starch plastic master batch |
| CN102443196A (en) * | 2011-10-18 | 2012-05-09 | 河南工业大学 | Radiation modified starch biological degrading material and preparation method thereof |
| CN102443196B (en) * | 2011-10-18 | 2013-12-25 | 河南工业大学 | Radiation modified starch biological degrading material and preparation method thereof |
| CN103849010A (en) * | 2014-02-23 | 2014-06-11 | 江苏省农业科学院 | Irradiated corn starch-based biodegradable particles and thin film thereof |
| CN103881148A (en) * | 2014-02-23 | 2014-06-25 | 江苏省农业科学院 | Preparation method for radiated corn starch-based biodegradation particles |
| CN110606993A (en) * | 2019-10-28 | 2019-12-24 | 南京财经大学 | Waterproof starch section bar and preparation method and application thereof |
| CN110606993B (en) * | 2019-10-28 | 2021-07-20 | 南京财经大学 | Waterproof starch section bar and preparation method and application thereof |
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