CN109627703A - A kind of preparation method of biodegrade self-sealed article - Google Patents
A kind of preparation method of biodegrade self-sealed article Download PDFInfo
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- CN109627703A CN109627703A CN201811293505.6A CN201811293505A CN109627703A CN 109627703 A CN109627703 A CN 109627703A CN 201811293505 A CN201811293505 A CN 201811293505A CN 109627703 A CN109627703 A CN 109627703A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 18
- 238000001125 extrusion Methods 0.000 claims abstract description 15
- 229920001896 polybutyrate Polymers 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 238000000465 moulding Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 22
- 238000001746 injection moulding Methods 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 125000003003 spiro group Chemical group 0.000 claims 1
- 208000034530 PLAA-associated neurodevelopmental disease Diseases 0.000 abstract description 3
- 239000012752 auxiliary agent Substances 0.000 abstract description 3
- 210000003128 head Anatomy 0.000 description 23
- 239000004626 polylactic acid Substances 0.000 description 22
- 229920000747 poly(lactic acid) Polymers 0.000 description 21
- 239000004745 nonwoven fabric Substances 0.000 description 11
- 239000000835 fiber Substances 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 10
- 239000002994 raw material Substances 0.000 description 9
- 239000010410 layer Substances 0.000 description 8
- 238000003475 lamination Methods 0.000 description 7
- 238000004806 packaging method and process Methods 0.000 description 5
- 229920000742 Cotton Polymers 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 description 4
- 239000004744 fabric Substances 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000002386 leaching Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000006065 biodegradation reaction Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 229920002261 Corn starch Polymers 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 206010053615 Thermal burn Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920000704 biodegradable plastic Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 210000004709 eyebrow Anatomy 0.000 description 1
- 210000000720 eyelash Anatomy 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000004310 lactic acid Substances 0.000 description 1
- 235000014655 lactic acid Nutrition 0.000 description 1
- 238000002074 melt spinning Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 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
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- 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
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/16—End- or aperture-closing arrangements or devices
- B65D33/28—Strings or strip-like closures, i.e. draw closures
-
- 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
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Biological Depolymerization Polymers (AREA)
Abstract
The present invention relates to a kind of preparation methods of biodegradable self-sealed article, mixture is equipped with by the mass percent of PLA:20~40%, PBAT:60~80%, uniformly mixed mixture is added to screw extruder extrusion molding, mixture is plasticized through extrusion screw rod, die head molding, is made molding self-sealed article after cooling.The application uses PLA and PBAT compatibility, realizes and has produced the degradable self-sealed article product for meeting requirement in the case where not adding other any auxiliary agents.
Description
Technical field
The present invention relates to the preparation method from seal structure, especially a kind of preparation method of biodegradable self-sealed article.
Background technique
Traditional self-sealed article, self-sealed article are to be difficult to be biodegradable in the environment after being dropped with the production of the materials such as PP, PE,
Form pollution.Packaging bag made of degradation material is had already appeared on the market at present, bag body itself is due to being using degradable
Material production, can be will be used wider and wider by biodegrade, but often need to configure self-sealed article for bag body in practical applications
Or self-sealed article etc., in order to realize degradable, it is necessary to develop biodegradable self-sealed article product.
Polylactic acid (PLA) is a kind of novel biodegradation material, is mentioned using reproducible plant resources (such as corn)
Starch raw material out is made.Lactic acid is made via fermentation process in starch raw material, then is converted into polylactic acid by chemical synthesis.It has
There is good biodegradability, can be degradable by microorganism in nature after use, carbon dioxide and water are ultimately generated, no
Environment is polluted, this is highly beneficial to protection environment, is generally acknowledged environment-friendly material.
Self-sealed article is made of self-sealed article and seal button, and the production performance of different part requirements is not also identical, is adopted at present
The injection molding production of self-sealed article can not be also carried out with pure PLA material.Therefore, the preparation method for developing biodegradable self-sealed article is compeled
The eyebrows and eyelashes.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of system of biodegradable self-sealed article for the above-mentioned prior art
Preparation Method.
The present invention solves the above problems used technical solution are as follows: a kind of preparation method of biodegrade self-sealed article is pressed
The mass percent outfit mixture of PLA:20~40%, PBAT:60~80%, is added to screw rod for uniformly mixed mixture
Extruder extrusion molding, mixture are plasticized through extrusion screw rod, and molding self-sealed article is made after cooling in die head molding.
Preferably, extrusion screw rod and die head are directly entered cooling water at 90 degree when die head exit squeezes out self-sealed article downwards
Slot is cooling, can avoid bone item in turn dropping process because gravity leads to bending deformation.
Specifically, according to the raw material proportioning of the application, the heating temperature of extrusion screw rod is set: 135 degree of level-one temperature；Two
145 degree of temperature of grade；160 degree of three-level temperature；165 degree of level Four temperature, which is also the temperature at die head, screw speed
16-18 turns/min, and hauling speed is set according to self-sealed article size is met, and the determination of hauling speed is mainly according to final self-styled bar rule
Very little, thickness is bigger, the more wide then hauling speed of width is slower, otherwise faster.
In order to reach normal use intensity, needs to consider raw material and dimension synthesis, be designed for the raw material of the application
The size of strand: the cross dimensions of the self-sealed article with seal button is thickness 1.9-2.1mm, width 10.5-11mm；Hand pressure is self-styled
Self-sealed article thickness 2-2.5mm, the width 20-22mm of item.
The flexibility of the biodegradable self-sealed article of above-mentioned size fully meets requirement.
For there is the self-sealed article of pull head, pull head also uses biodegradation material to prepare, and pull head uses injection molding process: pressing
The mass percent of PLA50%+PBAT50% is equipped with mixture, and uniformly mixed mixture is added to injection molding machine, spiral shell is arranged
Bar temperature: 130 DEG C of feeding inlet, 150 DEG C, 160 DEG C, 170 DEG C, 180 DEG C of nozzle, since tack of materials is big, the draft of injection mold
Gradient is designed as being greater than 5 °.
Compared to self-sealed article, pull head intensity and hardness are all higher, therefore present inventor is on the basis of self-sealed article ingredient
The content of PLA is improved, improved ingredient is also more applicable for injection molding production.
Compared with the prior art, the advantages of the present invention are as follows:
1) biodegradable self-sealed article, uses PLA+PBAT biodegrade plastic material for base-material, PLA has drawn from this year
Raw cereal is polymerized through refining, and material essence determines its sustainable regeneration and chance water through microbial degradation back to nature.PLA material
Expect hardness height itself, the self-sealing sleeve that extrusion molding production meets normal use can not be individually used for, need to be added other auxiliary agents, in this way meeting
There are environmental hazard, the application uses PLA and PBAT compatibility, realizes and produce in the case where not adding other any auxiliary agents
The degradable self-sealed article product of requirement is gone out to meet.
2) pull head is the inessential accessory of self-sealed article, but often also has certain market share, another mesh of the application
The pull head for seeking to prepare a kind of PLA+PBAT biodegrade plastic material, pull head use injection molding, drawing produced
Head is through detecting the hardness of its hardness with the pull head for using PE material to reach with same production equipment.
Specific embodiment
Present invention is further described in detail with reference to embodiments.
Embodiment 1
The preparation method of biodegradable self-sealed article: with mixture by the mass percent of PLA:40%, PBAT:60%,
Uniformly mixed mixture is added to screw extruder extrusion molding, mixture is plasticized through extrusion screw rod, die head molding, cooling
After molding self-sealed article is made.
Processing parameter: extrusion screw rod and die head are directly entered when die head exit squeezes out self-sealed article downwards at 90 degree
Cooling trough is cooling.The heating temperature of extrusion screw rod: 135 degree of level-one temperature；145 degree of second level temperature；160 degree of three-level temperature；Four
165 degree of temperature of grade, the level Four temperature are also the temperature at die head, and screw speed 16-18 turns/min, and hauling speed is according to meeting oneself
The setting of strip of paper used for sealing size, adjusting hauling speed makes cross dimensions thickness 1.9-2.1mm, the width 10.5-11mm of self-sealed article.
Self-sealed article thickness 2-2.5mm, the width 20-22mm of hand pressure self-sealed article.
The preparation method of biodegradable self-sealed article pull head, pull head use injection molding process: pressing PLA50%+PBAT50%
Mass percent be equipped with mixture, uniformly mixed mixture is added to injection molding machine, extruder temperature: feeding inlet 130 is set
DEG C, 150 DEG C, 160 DEG C, 170 DEG C, 180 DEG C of nozzle, since tack of materials is big, the pattern draft of injection mold is designed as 5 °, is convenient for
Smoothly demoulding.
Embodiment 2
Hand presses self-sealed article, adjusts hauling speed, self-sealed article size is made to meet thickness 2-2.5mm, width 20-22mm.
Embodiment 3
A kind of heat preservation environment protection speed fortune packaging bag with 1 degradable of embodiment, including bag body, bag body use double-layer fabric:
Internal layer fabric hot rolled nonwoven fabrics, outer layer lamination non-woven fabrics, intermediate course, intermediate course is interior to be filled with insulation fibre, and bag body is using PLA
Biodegradable plastic material is base-material, and bag body realizes sealing using self-sealed article, and the serobila and self-sealed article head material of self-sealed article are
The composite material of PLA and PBAT.
Above-mentioned packaging bag successively passes through PLA spinning-thin non-woven fabric manufacture-non-woven fabrics lamination-printing-bag making-and fills cotton system
At.Specific production stage is as follows
(1) it PLA spinning: in order to prepare PLA fiber, uses spinning-grade PLA slice for raw material, carries out melt spinning, use
Extruder type spinning machine, the fusing point of PLA are 175 degree, and manifold makes to match with PLA using low boiling point heating agent, concrete operations: raw material
It is dry to water content lower than 30ppm-by screw rod prefusing temperature be set as 200 DEG C, screw outlet temperature be 215 DEG C-spinneret
200 DEG C-cooling-winding-of temperature dissection-PLA staple fiber；The PLA staple fiber is using the fiber of specification 4D as heat preservation
Core packing material.
(2) thin non-woven fabric manufactures: using PLA fiber as raw material, being produced using fabric hot rolled nonwoven fabrics equipment: being combed to PLA fiber
Cotton-pneumatically send cotton-vibration sieve type paving cotton-to roller hot rolling-molding；
(3) non-woven fabrics lamination: to lamination is carried out outside the packaging of thin non-woven fabric, lamination selects PBAT material, will be pure
PBAT slice is put into laminating machine hopper, pushes forward to lamination die head, screw rod by the temperature at different levels of setting into extrusion screw rod
Instrument controlling is controlled by laminating machine PLC with die head temperature at different levels, six grades of temperature are arranged in screw rod altogether, be followed successively by 160 DEG C, 190 DEG C,
200 DEG C, 223 DEG C, 223 DEG C, 223 DEG C, the temperature setting of die head are 223 DEG C, and non-woven fabrics walking speed is 50 meters/min, effectively control leaching
Film thickness is most cooling through chilling roll afterwards at 40g/ square metres；
(4) it prints: being printed on the leaching membrane layer of non-woven fabrics, leaching membrane layer effectively waterproof can also can not only improve printing effect
Fruit；
(5) bag making: with the manufacture of non-woven fabrics self-sealed article Bag Making Machine, production technology: two-layer nonwoven blowing-both sides ultrasonic wave is certainly
Automatically self-sealed article pull head-ultrasonic wave is horizontal scald-cuts into bag, the bag body side hole Liu Chongmian for installation for dynamic welding self-sealed article-folding-.
(6) it fills cotton: using PLA fiber as insulation fibre, insulation fibre being filled into the interlayer of bag body, fill process: PLA
Fiber opener is fluffy-and it is automatically drawn into cotton-filling machine-opening for filling-in cotton-for filling cotton hole alignment cotton-filling machine of sack is quantitatively filled into cotton-and fill cotton hole
Sealing-insulated bag finished product.
Above-mentioned self-sealed article uses the product of embodiment 1.
Lamination surface and chilling roll adhesion in order to prevent, polytetrafluoroethylene (PTFE) contact layer is arranged in chilling roll surface, cold
Lamination surface is contacted with the polytetrafluoroethylene (PTFE) contact layer of chilling roll when but.
The performance test data of embodiment 3 is as shown in the table
The application raw material is very simple, does not add other chemical reagent, is produced by optimizing to technique
It is a kind of can truly degradable, packaging bag that products material ingredient is single.
In addition to the implementation, all to use equivalent transformation or equivalent replacement the invention also includes there is an other embodiments
The technical solution that mode is formed should all be fallen within the scope of the hereto appended claims.
Claims (5)
1. a kind of preparation method of biodegrade self-sealed article, it is characterised in that: by PLA:20~40%, PBAT:60~80%
Mass percent is equipped with mixture, uniformly mixed mixture is added to screw extruder extrusion molding, mixture is through squeezing out
Spiro rod plasticizing, die head molding, is made molding self-sealed article after cooling.
2. the preparation method of biodegrade self-sealed article according to claim 1, it is characterised in that: extrusion screw rod and die head at
90 degree, it is cooling that cooling trough is directly entered when die head exit squeezes out self-sealed article downwards.
3. the preparation method of biodegrade self-sealed article according to claim 1, it is characterised in that: adding for extrusion screw rod is arranged
Hot temperature: 135 degree of level-one temperature；145 degree of second level temperature；160 degree of three-level temperature；165 degree of level Four temperature, which is also
Temperature at die head, screw speed 16-18 turn/min, and hauling speed is set according to self-sealed article size is met.
4. the preparation method of biodegrade self-sealed article according to claim 3, it is characterised in that: the size of strand is arranged:
The cross dimensions of self-sealed article with seal button is thickness 1.9-2.1mm, width 10.5-11mm；Hand presses the self-sealed article of self-sealed article thick
Spend 2-2.5mm, width 20-22mm.
5. the preparation method of biodegrade self-sealed article according to claim 1, it is characterised in that: self-sealed article is configured with drawing
Head, pull head use injection molding process: mixture are equipped with by the mass percent of PLA50%+PBAT50%, by what is be uniformly mixed
Mixture is added to injection molding machine, and extruder temperature: 130 DEG C of feeding inlet, 150 DEG C, 160 DEG C, 170 DEG C, 180 DEG C of nozzle is arranged, due to
Tack of materials is big, and the pattern draft of injection mold is designed as being greater than 5 °.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811293505.6A CN109627703B (en) | 2018-11-01 | 2018-11-01 | Preparation method of biodegradable self-sealing strip |
| PCT/CN2019/091967 WO2020087944A1 (en) | 2018-11-01 | 2019-06-20 | Preparation method for biodegradable self-sealing strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811293505.6A CN109627703B (en) | 2018-11-01 | 2018-11-01 | Preparation method of biodegradable self-sealing strip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109627703A true CN109627703A (en) | 2019-04-16 |
| CN109627703B CN109627703B (en) | 2020-12-01 |
Family
ID=66067126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811293505.6A Expired - Fee Related CN109627703B (en) | 2018-11-01 | 2018-11-01 | Preparation method of biodegradable self-sealing strip |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109627703B (en) |
| WO (1) | WO2020087944A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110884160A (en) * | 2019-11-28 | 2020-03-17 | 江苏云之尚节能科技有限公司 | Preparation method of biodegradable flowerpot |
| CN110921099A (en) * | 2019-11-26 | 2020-03-27 | 江苏金之虹新材料有限公司 | High-barrier biodegradable self-supporting bag and preparation method thereof |
| WO2020087944A1 (en) * | 2018-11-01 | 2020-05-07 | 江苏云之尚节能科技有限公司 | Preparation method for biodegradable self-sealing strip |
| CN111440373A (en) * | 2019-08-28 | 2020-07-24 | 德清尚邑塑料制品有限公司 | Low-temperature laminating bone strip and production process and application thereof |
| CN113956488A (en) * | 2021-11-24 | 2022-01-21 | 江苏科技大学 | PBAT-based self-reinforced elastomer and preparation method and application thereof |
| CN114851672A (en) * | 2022-07-07 | 2022-08-05 | 山东兰德英科新材料科技有限公司 | Method for preparing infusion bag by adopting biodegradable infusion bag special material |
| CN115216126A (en) * | 2022-08-19 | 2022-10-21 | 山东道恩降解材料有限公司 | Full-degradable self-sealing bag with high reuse rate |
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| US5004356A (en) * | 1988-11-29 | 1991-04-02 | Idemitsu Petrochemical Co., Ltd. | Fastener and wrapping bag having the same |
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| CN106147144A (en) * | 2015-05-12 | 2016-11-23 | 荣有限公司 | Soft PET-G resin combination and use its mantle manufactured and zippered bag slide fastener |
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2018
- 2018-11-01 CN CN201811293505.6A patent/CN109627703B/en not_active Expired - Fee Related
-
2019
- 2019-06-20 WO PCT/CN2019/091967 patent/WO2020087944A1/en active Application Filing
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020087944A1 (en) * | 2018-11-01 | 2020-05-07 | 江苏云之尚节能科技有限公司 | Preparation method for biodegradable self-sealing strip |
| CN111440373A (en) * | 2019-08-28 | 2020-07-24 | 德清尚邑塑料制品有限公司 | Low-temperature laminating bone strip and production process and application thereof |
| CN111440373B (en) * | 2019-08-28 | 2022-07-01 | 德清尚邑塑料制品有限公司 | Low-temperature laminating bone strip and production process and application thereof |
| CN110921099A (en) * | 2019-11-26 | 2020-03-27 | 江苏金之虹新材料有限公司 | High-barrier biodegradable self-supporting bag and preparation method thereof |
| CN110884160A (en) * | 2019-11-28 | 2020-03-17 | 江苏云之尚节能科技有限公司 | Preparation method of biodegradable flowerpot |
| CN113956488A (en) * | 2021-11-24 | 2022-01-21 | 江苏科技大学 | PBAT-based self-reinforced elastomer and preparation method and application thereof |
| CN113956488B (en) * | 2021-11-24 | 2022-11-15 | 江苏科技大学 | PBAT-based self-reinforced elastomer and preparation method and application thereof |
| CN114851672A (en) * | 2022-07-07 | 2022-08-05 | 山东兰德英科新材料科技有限公司 | Method for preparing infusion bag by adopting biodegradable infusion bag special material |
| CN114851672B (en) * | 2022-07-07 | 2022-09-02 | 山东兰德英科新材料科技有限公司 | Method for preparing infusion bag by adopting biodegradable infusion bag special material |
| CN115216126A (en) * | 2022-08-19 | 2022-10-21 | 山东道恩降解材料有限公司 | Full-degradable self-sealing bag with high reuse rate |
| CN115216126B (en) * | 2022-08-19 | 2023-11-07 | 山东道恩降解材料有限公司 | Full-degradable self-sealing bag with high repeated use rate |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020087944A1 (en) | 2020-05-07 |
| CN109627703B (en) | 2020-12-01 |
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