CN106243404A - Starch degradable thin film of caprolactone grafting that a kind of transparency is good and preparation method thereof - Google Patents
Starch degradable thin film of caprolactone grafting that a kind of transparency is good and preparation method thereof Download PDFInfo
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- CN106243404A CN106243404A CN201610755930.7A CN201610755930A CN106243404A CN 106243404 A CN106243404 A CN 106243404A CN 201610755930 A CN201610755930 A CN 201610755930A CN 106243404 A CN106243404 A CN 106243404A
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- starch
- caprolactone
- transparency
- good
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- 229920002472 Starch Polymers 0.000 title claims abstract description 47
- 235000019698 starch Nutrition 0.000 title claims abstract description 47
- 239000008107 starch Substances 0.000 title claims abstract description 47
- PAPBSGBWRJIAAV-UHFFFAOYSA-N ε-Caprolactone Chemical compound O=C1CCCCCO1 PAPBSGBWRJIAAV-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 239000010409 thin film Substances 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims description 8
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 claims abstract description 21
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims abstract description 20
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000010408 film Substances 0.000 claims abstract description 12
- URXNVXOMQQCBHS-UHFFFAOYSA-N naphthalene;sodium Chemical compound [Na].C1=CC=CC2=CC=CC=C21 URXNVXOMQQCBHS-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000003208 petroleum Substances 0.000 claims abstract description 10
- 229920001610 polycaprolactone Polymers 0.000 claims abstract description 9
- 239000004632 polycaprolactone Substances 0.000 claims abstract description 9
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 8
- 239000004411 aluminium Substances 0.000 claims abstract description 8
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229920002261 Corn starch Polymers 0.000 claims abstract description 7
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000008120 corn starch Substances 0.000 claims abstract description 7
- SBZXBUIDTXKZTM-UHFFFAOYSA-N diglyme Chemical compound COCCOCCOC SBZXBUIDTXKZTM-UHFFFAOYSA-N 0.000 claims abstract description 7
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims abstract description 7
- 150000008301 phosphite esters Chemical class 0.000 claims abstract description 7
- 229920000223 polyglycerol Polymers 0.000 claims abstract description 7
- 229920002545 silicone oil Polymers 0.000 claims abstract description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 238000001556 precipitation Methods 0.000 claims description 6
- 239000000047 product Substances 0.000 claims description 6
- MKRNVBXERAPZOP-UHFFFAOYSA-N Starch acetate Chemical compound O1C(CO)C(OC)C(O)C(O)C1OCC1C(OC2C(C(O)C(OC)C(CO)O2)OC(C)=O)C(O)C(O)C(OC2C(OC(C)C(O)C2O)CO)O1 MKRNVBXERAPZOP-UHFFFAOYSA-N 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 238000005453 pelletization Methods 0.000 claims description 3
- 238000010992 reflux Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 2
- 239000002244 precipitate Substances 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 239000013049 sediment Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 9
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 238000012356 Product development Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
- 238000010672 photosynthesis Methods 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
- C08L3/02—Starch; Degradation products thereof, e.g. dextrin
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B31/00—Preparation of derivatives of starch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B31/00—Preparation of derivatives of starch
- C08B31/02—Esters
- C08B31/04—Esters of organic acids, e.g. alkenyl-succinated starch
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/06—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxycarboxylic acids
- C08G63/08—Lactones or lactides
-
- 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
-
- 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
- C08J2303/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
- C08J2303/02—Starch; Degradation products thereof, e.g. dextrin
-
- 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
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
-
- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Biochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Biological Depolymerization Polymers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The starch degradable thin film of the caprolactone grafting that a kind of transparency is good, it is characterized in that, it is prepared from by the raw material of following weight portion: corn starch 100 parts, wheaten starch 8 10 parts, silicone oil 23 parts, phosphite ester 12 parts, superfine aluminium power 34 parts, maleic anhydride 34 parts, polyglycerol 58 parts, polyvinyl alcohol 58 parts, DMF 80 100 parts, acetic anhydride 8 10 parts, pyridine 100 120 parts, diethylene glycol dimethyl ether 120 150 parts, sodium naphthalene solution 15 20 parts, caprolactone 58 parts, petroleum ether 200 300 parts, oxolane 200 300 parts, polycaprolactone 58 parts, water is appropriate.Starch of the present invention can be biodegradable, abundance, cheap, environmentally friendly；The starch degradable film strength of the caprolactone grafting that the transparency that the present invention prepares is good is high, the transparency is good, glossiness is high, low cost and biodegradable, can effectively alleviate white pollution problems.
Description
Technical field
The present invention relates to thin film fabrication techniques field, the starch being specifically related to the good caprolactone grafting of a kind of transparency can drop
Degrading film and preparation method thereof.
Technical background
Flourish along with plastics industry, the environmental pollution that waste plastic film rubbish brings also is on the rise, white
Pollute and become the environmental problem attracted attention in the whole world.Therefore, people have to go into overdrive to develop biological degredation plastic thin film,
Administer plastic refuse pollution problem brought to environment.
Starch is a kind of abundance, cheap natural macromolecular material, is also a kind of inexhaustible
Renewable resource, it can be biodegradable in a variety of environmental conditions, and final catabolite carbon dioxide and water can pass through
The photosynthesis recirculation of plant, will not cause any pollution to environment.Therefore, to be widely used in degradation plastic thin for starch
The research of film and product development, and have been achieved for great progress.
Author Song little Li, in the preparation and performance study one literary composition of starch-based degradable laminated film, utilizes starch, shell poly-
Sugar, glycerol, Paligorskite are prepared for a kind of starch-based degradable laminated film, and glycerol is starch film plasticizer, and Paligorskite changes
The mechanical property of kind starch film, the starch-based degradable laminated film of preparation has good biodegradability.
Summary of the invention
The technical problem to be solved is to provide that a kind of technique is simple, production cost is low and environment amenable
Starch degradable thin film of caprolactone grafting that the transparency is good and preparation method thereof.
The technical problem to be solved uses following technical scheme to realize:
The starch degradable thin film of the caprolactone grafting that a kind of transparency is good, it is characterised in that it is by the raw material of following weight portion
Be prepared from: corn starch 100 parts, wheaten starch 8-10 part, silicone oil 2-3 part, phosphite ester 1-2 part, superfine aluminium power 3-4 part,
Maleic anhydride 3-4 part, polyglycerol 5-8 part, polyvinyl alcohol 5-8 part, DMF 80-100 part, acetic anhydride 8-10 part, pyridine 100-
120 parts, diethylene glycol dimethyl ether 120-150 part, sodium naphthalene solution 15-20 part, caprolactone 5-8 part, petroleum ether 200-300 part, four
Hydrogen furan 200-300 part, polycaprolactone 5-8 part, water are appropriate.
The starch degradable thin film of the caprolactone grafting that a kind of transparency is good, it is characterised in that it is prepared by following steps
Form:
(1) wheaten starch is the driest, then under conditions of stirring, it is warmed up to 130-140 DEG C with DMF, keep 4-5h, cooling
To 90-100 DEG C, dropping acetic anhydride and pyridine, continue to react 5-6h, cooling at 90-100 DEG C, be poured in cold water after dripping
Precipitation, filters, washs to neutrality, is dried, for white powder material, i.e. starch acetate；
(2) in the reactor equipped with agitator, thermometer, reflux condensing tube and logical nitrogen device, diethylene glycol dimethyl ether is added
And starch acetate, it is warmed up to 90-100 DEG C and makes it dissolve fully, be then down to room temperature, add naphthalene sodium under nitrogen protection molten
Liquid, after reacting about 15-20min, adds caprolactone, reacts 10-12h at 110-130 DEG C, and product is carried out with the petroleum ether of 1/3
After precipitation, then with oxolane dissolving, remaining petroleum ether precipitation secondary, product is white solid thing, i.e. caprolactone after drying
The starch of grafting；
(3) full and uniform mixing 2-is carried out in polyglycerol and polyvinyl alcohol being delivered to homogenizer by automatic conveying device
3h, adds corn starch, the starch of caprolactone grafting, silicone oil, phosphite ester, superfine aluminium power, maleic anhydride, polycaprolactone, enters
Row full and uniform mixing 5-6h, the material of mix homogeneously put into comminutor is carried out mixing, melt, extrude, cool down after pelletizing；Add
Enter in inflation film manufacturing machine making thin film, rolling, obtain the starch degradable thin film of the good caprolactone grafting of a kind of transparency.
The starch degradable thin film of the caprolactone grafting that a kind of transparency is good, it is characterised in that described sodium naphthalene solution
Preparation method is: naphthalene and metallic sodium are placed in oxolane, reacts 10-12h under room temperature and nitrogen are protected, and obtaining concentration is
The sodium naphthalene solution of 0.8-1mol/L.
The starch degradable thin film of the caprolactone grafting that a kind of transparency is good, it is characterised in that described DMF and pyridine make
It is dried through anhydrous sodium sulfate with front all need.
The invention has the beneficial effects as follows: starch of the present invention can be biodegradable, abundance, price are low
Honest and clean, environmentally friendly；The mechanical performance adding increase thin film of superfine aluminium power and temperature tolerance；Polycaprolactone can be as binding agent
And plasticizer, and at starch surface grafting caprolactone, effectively facilitate uniformly mixing between polycaprolactone with starch, improve thin film
Mechanical property；Polyvinyl alcohol and the addition of glycerol, play plasticization to starch；The starch film intensity that the present invention prepares
High, the transparency is good, glossiness is high, low cost and biodegradable, can effectively alleviate white pollution problems.
Detailed description of the invention
The starch degradable thin film of the caprolactone grafting that the transparency of the present embodiment is good, it is by the raw material system of following weight portion
Standby form: corn starch 100 parts, wheaten starch 8 parts, silicone oil 2 parts, phosphite ester 2 parts, superfine aluminium power 4 parts, maleic anhydride 4 parts,
Polyglycerol 5 parts, polyvinyl alcohol 8 parts, DMF 100 parts, acetic anhydride 10 parts, pyridine 120 parts, diethylene glycol dimethyl ether 150 parts, naphthalene
Sodium solution 15 parts, caprolactone 8 parts, petroleum ether 300 parts, oxolane 300 parts, polycaprolactone 8 parts, water are appropriate.
The starch degradable thin film of the caprolactone grafting that the transparency of the present embodiment is good, it is prepared from by following steps:
(1) wheaten starch is the driest, then under conditions of stirring, it is warmed up to 130 DEG C with DMF, keep 4h, cool to 90 DEG C,
Dropping acetic anhydride and pyridine, continues to react 6h, cooling at 90 DEG C, is poured in cold water precipitation after dripping, filter, wash in
Property, it is dried, for white powder material, i.e. starch acetate；
(2) in the reactor equipped with agitator, thermometer, reflux condensing tube and logical nitrogen device, diethylene glycol dimethyl ether is added
And starch acetate, it is warmed up to 100 DEG C and makes it dissolve fully, be then down to room temperature, add sodium naphthalene solution under nitrogen protection, instead
Caprolactone should be added after about 20min, at 130 DEG C, react 12h, after product precipitates with the petroleum ether of 1/3, then with tetrahydrochysene
Furan dissolves, remaining petroleum ether precipitation secondary, and product is white solid thing after drying, i.e. the starch of caprolactone grafting；
(3) full and uniform mixing is carried out in polyglycerol and polyvinyl alcohol being delivered to homogenizer by automatic conveying device
2h, adds corn starch, the starch of caprolactone grafting, silicone oil, phosphite ester, superfine aluminium power, maleic anhydride, polycaprolactone, enters
Row full and uniform mixing 6h, the material of mix homogeneously put into comminutor is carried out mixing, melt, extrude, cool down after pelletizing；Add
In inflation film manufacturing machine, make thin film, rolling, obtain the starch degradable thin film of the good caprolactone grafting of a kind of transparency.
After tested, the starch degradable thin film hot strength of the caprolactone grafting that the transparency of the present embodiment is good is more than
30MPa, elongation at break is more than 150%, and light transmittance is more than 90%, and thin film both sides temperature difference is more than 5 DEG C.
Claims (4)
1. the starch degradable thin film of the caprolactone grafting that the transparency is good, it is characterised in that it is former by following weight portion
Material is prepared from: corn starch 100 parts, wheaten starch 8-10 part, silicone oil 2-3 part, phosphite ester 1-2 part, superfine aluminium power 3-4
Part, maleic anhydride 3-4 part, polyglycerol 5-8 part, polyvinyl alcohol 5-8 part, DMF 80-100 part, acetic anhydride 8-10 part, pyridine
100-120 part, diethylene glycol dimethyl ether 120-150 part, sodium naphthalene solution 15-20 part, caprolactone 5-8 part, petroleum ether 200-300
Part, oxolane 200-300 part, polycaprolactone 5-8 part, water are appropriate.
2. the starch degradable thin film of the caprolactone grafting that the transparency is good, it is characterised in that its prepared by following steps and
Become:
Wheaten starch is the driest, then under conditions of stirring, it is warmed up to 130-140 DEG C with DMF, keep 4-5h, cool to
90-100 DEG C, dropping acetic anhydride and pyridine, continue to react 5-6h, cooling after dripping at 90-100 DEG C, it is heavy to be poured in cold water
Form sediment, filter, wash to neutrality, be dried, for white powder material, i.e. starch acetate；
In the reactor equipped with agitator, thermometer, reflux condensing tube and logical nitrogen device, add diethylene glycol dimethyl ether and shallow lake
Powder acetas, is warmed up to 90-100 DEG C and makes it dissolve fully, be then down to room temperature, add sodium naphthalene solution under nitrogen protection, instead
Should add caprolactone after about 15-20min, react 10-12h at 110-130 DEG C, product precipitates with the petroleum ether of 1/3
After, then with oxolane dissolving, remaining petroleum ether precipitation secondary, product is white solid thing after drying, i.e. caprolactone grafting
Starch；
Full and uniform mixing 2-3h is carried out in polyglycerol and polyvinyl alcohol are delivered to homogenizer by automatic conveying device,
Add corn starch, the starch of caprolactone grafting, silicone oil, phosphite ester, superfine aluminium power, maleic anhydride, polycaprolactone, fill
Point uniformly mix 5-6h, the material of mix homogeneously put into comminutor is carried out mixing, melt, extrude, cool down after pelletizing；Join
Inflation film manufacturing machine makes thin film, rolling, obtains the starch degradable thin film of the good caprolactone grafting of a kind of transparency.
3. the starch degradable thin film of the caprolactone grafting that the transparency is good, it is characterised in that the system of described sodium naphthalene solution
Preparation Method is: naphthalene and metallic sodium are placed in oxolane, reacts 10-12h under room temperature and nitrogen are protected, and obtaining concentration is 0.8-
The sodium naphthalene solution of 1mol/L.
4. the starch degradable thin film of the caprolactone grafting that the transparency is good, it is characterised in that described DMF and pyridine use
Before all need to be dried through anhydrous sodium sulfate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610755930.7A CN106243404A (en) | 2016-08-30 | 2016-08-30 | Starch degradable thin film of caprolactone grafting that a kind of transparency is good and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610755930.7A CN106243404A (en) | 2016-08-30 | 2016-08-30 | Starch degradable thin film of caprolactone grafting that a kind of transparency is good and preparation method thereof |
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| Publication Number | Publication Date |
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| CN106243404A true CN106243404A (en) | 2016-12-21 |
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| CN201610755930.7A Pending CN106243404A (en) | 2016-08-30 | 2016-08-30 | Starch degradable thin film of caprolactone grafting that a kind of transparency is good and preparation method thereof |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1640919A (en) * | 2004-12-20 | 2005-07-20 | 陈明忠 | Starchlike biological degradatable plastic mother material and its preparation method |
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2016
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1640919A (en) * | 2004-12-20 | 2005-07-20 | 陈明忠 | Starchlike biological degradatable plastic mother material and its preparation method |
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Application publication date: 20161221 |