CN101851406B - Completely degradable plastic film and production process thereof - Google Patents
Completely degradable plastic film and production process thereof Download PDFInfo
- Publication number
- CN101851406B CN101851406B CN2010101872822A CN201010187282A CN101851406B CN 101851406 B CN101851406 B CN 101851406B CN 2010101872822 A CN2010101872822 A CN 2010101872822A CN 201010187282 A CN201010187282 A CN 201010187282A CN 101851406 B CN101851406 B CN 101851406B
- Authority
- CN
- China
- Prior art keywords
- plastic film
- butylene terephthalate
- film
- degradable plastic
- completely degradable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0017—Combinations of extrusion moulding with other shaping operations combined with blow-moulding or thermoforming
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92904—Die; Nozzle zone
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Biological Depolymerization Polymers (AREA)
Abstract
The invention relates to a completely degradable plastic film and a production process thereof. The plastic film is prepared from polybutylene adipate-butylene terephthalate 4, polymethyl ethylene carbonic ester and a compatibilizer, and the mixture is extruded for melt blending so as to improve the compatibility of the blended materials, so that the blending materials have excellent gas barrier property, the using field of the plastic film is broadened, the problems of high cost, difficult popularization, poor gas barrier property and the like of the polybutylene adipate-butylene terephthalate are solved, and simultaneously the problem of conglutination when the polybutylene adipate-butylene terephthalate is used singly to prepare the film is solved. The completely degradable plastic film has the characteristics of simple process method, simple and convenient operation, low cost, excellent mechanical properties of products and the like.
Description
Technical field
The invention belongs to the plastic film production technical field, particularly a kind of completely degradable plastic film and production technique thereof.
Background technology
Get into 21 century, the Sustainable development of society and relate to environment, the energy and economic problems and more and more receive people's attention.The problem of environmental pollution that waste plastic brings is on the rise, and degradable plastics has caused the many attention of People more and more.Present degradable plastics mainly is biological degradation; Promptly in plastics, add starch, utilize the invasion and attack of mikrobe, make it from inorganic filler plastic blending material, to remove starch granules; Remaining parts of plastics becomes microporous fragile materials; Reduced physical strength, until becoming powdered granule, to eliminate the obstruction of plastic waste to the soil air motion.The major defect one of this degradable plastics is the speed of contents of starch decision plastic degradation, and the high degraded of content is fast, and the low degraded of content is slow.Use this type plastics to make the product of different purposes, then need adopt different starch content, thereby the speed that causes degrading is also with regard to difference.At present, in the film materials, general contents of starch is 20～40%, and the toughness that material promptly occurred reduces, and is unfavorable for problems such as blown film processing, if starch content further reduces again, then degradation speed is too slow, has lost the meaning of adding starch; The 2nd, it is many to consume grain resource; The 3rd, Technology is comparatively complicated, and production cost is high, and goods cost an arm and a leg; The 4th, starch-based polymer and goods thereof only resolve into the invisible molecule of naked eyes after burying, and are easy to generate to have toxic biomass; The 5th, goods are not durable and are frangible, must could obtain the characteristic of raw material plastics through special processing; The 6th, under general condition of storage,, plastics are not durable through moisture absorption meeting lost strength.
Summary of the invention
The purpose of this invention is to provide a kind of good mechanical property, can eliminate completely degradable plastic film and production technique thereof that plastics cause environmental pollution.
For realizing that the technical scheme that the object of the invention is taked is: this plastic film is formed by the feedstock production of following mass fraction: gather 45～95 parts of hexanodioic acid fourth diester-butylene terephthalate, 5～50 parts of lined polymethyl ethylene carbonates, 0.2～5 part of expanding material.
Said expanding material adopts vulcabond, diacid chloride or silane coupling agent.
The molecular weight ranges of said lined polymethyl ethylene carbonate is: 50000～300000.
The production technique of completely degradable plastic film of the present invention is to carry out according to the following steps:
1) preparation mixing raw material: take by weighing respectively by said proportioning and to gather hexanodioic acid fourth diester-butylene terephthalate, lined polymethyl ethylene carbonate and expanding material, and insert in the mixer, mix that to process mixing raw material subsequent use;
2) granulation: the mixing raw material of preparation sent into to process particle in the twin screw extruder subsequent use, be uniformly distributed with the heated at various points controlled temperature from opening for feed to the mouth mould in the extrusion and be followed successively by: 30 ℃, 50 ℃, 100 ℃; 120 ℃, 140 ℃, 150 ℃, 160 ℃; 165 ℃, 170 ℃, 165 ℃;
3) moulding: the particle of preparation poured into carry out blown film in the inflation film manufacturing machine and get final product, wherein the blown film temperature is 140～180 ℃.
The hexanodioic acid fourth diester-butylene terephthalate of gathering that the present invention adopts is terephthalic acid, hexanodioic acid and 1; The three-element copolymerized ester of 4-butyleneglycol; Be the thermoplastic copolyesters of a kind of fully biodegradable that research both at home and abroad in recent years is more, have have excellent water-resistance, snappiness is good and advantage such as easy-formation processing.But because melt strength is not high, complete processing is complicated, cost an arm and a leg etc. factor makes its application be very limited.Lined polymethyl ethylene carbonate is the product by propylene oxide and carbonic acid gas alternating copolymerization; It is a kind of high-fall macromolecular material of separating; Cost is low; Have a extensive future,, and be applied with intermingling materials such as natural fiber or mineral fillers at present as barrier material, whipping agent, tamanori, pressure sensitive adhesive.But the thermal property of binary polymer lined polymethyl ethylene carbonate and mechanical property are relatively poor relatively, make its application in plastics also be restricted.After adding gathers hexanodioic acid fourth diester-butylene terephthalate in the lined polymethyl ethylene carbonate among the present invention; The by product propene carbonate reaction that gathers in hexanodioic acid fourth diester-butylene terephthalate and the lined polymethyl ethylene carbonate forms partial cross-linked; Can obviously improve thermostability and mechanical property, each item performance all is improved.Therefore; The present invention is a matrix with the hexanodioic acid fourth diester-butylene terephthalate of gathering of fully biodegradable, under the effect of expanding material, carries out melt blending with lined polymethyl ethylene carbonate, prepares that consistency is good, the intermingling material of structure homogeneous; Use this intermingling material to carry out blown film or extrude curtain coating; The intermingling material film of processing not only can complete biodegradable, and the use characteristics of its mechanical property and processing all improves greatly, and production cost reduces significantly.
The degradable plastics film of processing according to such scheme has following beneficial effect:
(1) adopts that to gather hexanodioic acid fourth diester-butylene terephthalate be matrix; Under specific expanding material effect, carry out melt blending through lined polymethyl ethylene carbonate; The intermingling material of preparation fully biodegradable has improved the consistency of intermingling material, has widened its use field;
(2) the present invention adopts the lower lined polymethyl ethylene carbonate of price as part of raw materials, has solved to gather hexanodioic acid fourth diester-butylene terephthalate and cost an arm and a leg, and is unfavorable for the problem of promoting;
(3) the present invention adopts the lined polymethyl ethylene carbonate with excellent gas barrier as raw material; The intermingling material of the fully biodegradable of gained has good barrier properties for gases, has solved the problem of gathering hexanodioic acid fourth diester-butylene terephthalate barrier difference;
(4) the present invention adopts lined polymethyl ethylene carbonate as part of raw materials, has solved independent use and has gathered the adhesion problems that hexanodioic acid fourth diester-butylene terephthalate prepares film;
(5) the present invention adopts expanding material to react to extrude, the thermal property of intermingling material is greatly improved;
(6) the present invention adopts the method for blown film to prepare thin-film material, and technology is simple, excellent property, and optimal performance can reach: tensile strength: 23.31MPa, elongation at break: 1132%, improve more than 1 times than existing thin-film material;
(7) production technique of the present invention is simple, and raw material all can directly be bought on market, and production cost is low.
Embodiment
Embodiment 1
Completely degradable plastic film of the present invention, the proportion by weight of its each component raw material is: gather 95 parts of hexanodioic acid fourth diester-butylene terephthalate, 5 parts of lined polymethyl ethylene carbonates, 0.2 part of expanding material diacid chloride.
The production technique of this plastic film is undertaken by following method: take by weighing respectively by said proportional quantity and gather hexanodioic acid fourth diester-butylene terephthalate, lined polymethyl ethylene carbonate and expanding material diphenylmethanediisocyanate, put into mixer and mix and make blend composition.Pour the blend composition that mixes into again and be extruded into the blend composition particle in the twin screw extruder, be uniformly distributed with the heated at various points controlled temperature from opening for feed to a mouth mould of extruding the position in the extrusion and be followed successively by: 30 ℃, 50 ℃, 100 ℃; 120 ℃, 140 ℃, 150 ℃, 160 ℃; 165 ℃, 170 ℃, 165 ℃.At last the blend composition particle that makes is poured into and carried out blown film in the inflation film manufacturing machine, the blown film temperature is 140 ℃.The standard batten that the gained film is cut into 50mm * 15mm carries out Mechanics Performance Testing.According to above-mentioned preparation method; Test-results shows that gathering hexanodioic acid fourth diester-butylene terephthalate (PBAT) and lined polymethyl ethylene carbonate (PPC) intermingling material film has fully overcome both shortcomings, and the mechanical property of resulting product is good: longitudinal tensile strength is that 11.27Mpa, longitudinal fracture elongation are 1132%, transverse tensile strength is that 10.76Mpa, cross break elongation are 1207%.
Embodiment 2
Completely degradable plastic film of the present invention, the mass fraction of its each component raw material is:
Gather 90 parts of hexanodioic acid fourth diester-butylene terephthalate, 10 parts of lined polymethyl ethylene carbonates, 1 part of expanding material diacid chloride, its production technique and embodiment 1 are basic identical, and difference only is that the blown film temperature is 145 ℃.The mechanical property of resulting product: longitudinal tensile strength is that 12.56Mpa, longitudinal fracture elongation are 1050%, transverse tensile strength is that 12.13Mpa, cross break elongation are 989.0%.
Embodiment 3
Completely degradable plastic film of the present invention, the mass fraction of its each component raw material is:
Gather 80 parts of hexanodioic acid fourth diester-butylene terephthalate, 20 parts of lined polymethyl ethylene carbonates, 2 parts of expanding material silane coupling agents, its production technique and embodiment 1 are basic identical, and difference only is that the blown film temperature is 150 ℃.The mechanical property of resulting product: longitudinal tensile strength is that 14.21Mpa, longitudinal fracture elongation are 908.1%, transverse tensile strength is that 14.01Mpa, cross break elongation are 812.7%.
Embodiment 4
Completely degradable plastic film of the present invention, the proportion by weight of its each component raw material can be:
Gather 70 parts of hexanodioic acid fourth diester-butylene terephthalate, 30 parts of lined polymethyl ethylene carbonates, 3 parts of expanding material vulcabond, its production technique and embodiment 1 are basic identical, and difference only is that the blown film temperature is 160 ℃.The mechanical property of resulting product: longitudinal tensile strength is that 17.18Mpa, longitudinal fracture elongation are 723.0%, transverse tensile strength is that 15.66Mpa, cross break elongation are 615.3%.
Embodiment 5
Completely degradable plastic film of the present invention, the proportion by weight of its each component raw material can be:
Gather 60 parts of hexanodioic acid fourth diester-butylene terephthalate, 40 parts of lined polymethyl ethylene carbonates, 4 parts of expanding material vulcabond, its production technique and embodiment 1 are basic identical, and difference only is that the blown film temperature is 170 ℃.The mechanical property of resulting product: longitudinal tensile strength is that 19.01Mpa, longitudinal fracture elongation are 625.3%, transverse tensile strength is that 17.89Mpa, cross break elongation are 551.6%.
Embodiment 6
Completely degradable plastic film of the present invention, the proportion by weight of its each component raw material can be:
Gather 50 parts of hexanodioic acid fourth diester-butylene terephthalate, 50 parts of lined polymethyl ethylene carbonates, 5 parts of expanding material vulcabond, its production technique and embodiment 1 are basic identical, and difference only is that the blown film temperature is 1 80 ℃.The mechanical property of resulting product: longitudinal tensile strength is that 23.3 1Mpa, longitudinal fracture elongation are 426.2%, transverse tensile strength is that 22.01Mpa, cross break elongation are 378.9%.
Claims (3)
1. completely degradable plastic film; It is characterized in that: this plastic film is that the feedstock production by following mass fraction forms: gather 45～95 parts of hexanodioic acid fourth diester-butylene terephthalate, 5～50 parts of lined polymethyl ethylene carbonates, 0.2～5 part of expanding material; Wherein, expanding material adopts vulcabond, diacid chloride or silane coupling agent.
2. completely degradable plastic film according to claim 1 is characterized in that: the molecular weight ranges of said lined polymethyl ethylene carbonate is: 50000～300000.
3. the production technique of the said completely degradable plastic film of claim 1, it is characterized in that: it is to carry out according to the following steps:
1) preparation mixing raw material: take by weighing respectively by said proportioning and to gather hexanodioic acid fourth diester-butylene terephthalate, lined polymethyl ethylene carbonate and expanding material, insert in the mixer, mix that to process mixing raw material subsequent use;
2) granulation: the mixing raw material of preparation sent into to process particle in the twin screw extruder subsequent use, be uniformly distributed with the heated at various points controlled temperature from opening for feed to the mouth mould in the extrusion and be followed successively by: 30 ℃, 50 ℃, 100 ℃; 120 ℃, 140 ℃, 150 ℃, 160 ℃; 165 ℃, 170 ℃, 165 ℃;
3) moulding: the particle of preparation poured into carry out blown film in the inflation film manufacturing machine and get final product, wherein the blown film temperature is 140～180 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101872822A CN101851406B (en) | 2010-05-31 | 2010-05-31 | Completely degradable plastic film and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101872822A CN101851406B (en) | 2010-05-31 | 2010-05-31 | Completely degradable plastic film and production process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101851406A CN101851406A (en) | 2010-10-06 |
| CN101851406B true CN101851406B (en) | 2012-05-30 |
Family
ID=42803096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101872822A Expired - Fee Related CN101851406B (en) | 2010-05-31 | 2010-05-31 | Completely degradable plastic film and production process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101851406B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101401917B1 (en) * | 2011-01-21 | 2014-05-30 | 에스케이이노베이션 주식회사 | Resin composition for expandable polypropylene carbonate and expandable polypropylene carbonate therefrom |
| CN107650360A (en) * | 2017-09-27 | 2018-02-02 | 华南理工大学 | A kind of degradable poly methyl ethylene carbonate base microbedding coextruding composite material and preparation method thereof |
| CN111748180B (en) * | 2020-06-30 | 2023-04-25 | 广东省生物工程研究所（广州甘蔗糖业研究所） | Biodegradable film raw material combination and biodegradable film material |
| CN114437516B (en) * | 2020-11-04 | 2023-06-02 | 常州化学研究所 | High-barrier high-light-transmittance biodegradable film and preparation method thereof |
| CN112936649A (en) * | 2021-02-01 | 2021-06-11 | 惠州市昊远五金塑胶制品有限公司 | Biodegradable environment-friendly plastic film production process |
| CN114316823A (en) * | 2022-01-21 | 2022-04-12 | 中国科学院长春应用化学研究所 | Full-biological carbon dioxide-based biodegradable polyurethane pressure-sensitive adhesive tape and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101402789B (en) * | 2008-11-12 | 2012-07-04 | 中国科学院长春应用化学研究所 | Full-biodegradable film with poly-carbonic acid 1,2-propylene diester as substrate and production method thereof |
| WO2010056421A1 (en) * | 2008-11-13 | 2010-05-20 | Clemson University Research Foundation | Copolymer including polylactic acid, acrylic acid and polyethylene glycol and processes for making the same |
-
2010
- 2010-05-31 CN CN2010101872822A patent/CN101851406B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN101851406A (en) | 2010-10-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112876745B (en) | Antibacterial biodegradable tableware and preparation method thereof | |
| CN101851406B (en) | Completely degradable plastic film and production process thereof | |
| CA2038931C (en) | Polymer composition including destructured starch and an ethylene copolymer | |
| US8389614B2 (en) | Biodegradable nanopolymer compositions and biodegradable articles made thereof | |
| US5910520A (en) | Melt processable biodegradable compositions and articles made therefrom | |
| CN103289134B (en) | Multifunctional ground-covering film of fully biodegradable and preparation method thereof | |
| US20080153940A1 (en) | Biodegradable compositions and biodegradable articles made thereof | |
| CN103627153A (en) | Entire biodegradation PLA/PBAT composite material and preparing method therefor | |
| CN104610715A (en) | Fiber-reinforced full-degradable heat-resisting environmental protection material, and preparation method and application thereof | |
| CN1050391A (en) | Be used to polymer composition of producing articles of biodegradable plastics material and preparation method thereof | |
| CN101161708A (en) | Biodegradable fecula polylactic acid 'alloy' packaging material and preparation method thereof | |
| CN103205021A (en) | Thermoplastic and PBAT blend and preparation method thereof | |
| CN102079822B (en) | Plant fiber enhanced starch composite packaging material and preparation method thereof | |
| KR20090031862A (en) | Novel biodegradable polymer composition useful for the preparation of biodegradable plastic and a process for the preparation of said composition | |
| CN103265716A (en) | Straw fiber/PBS(poly butylene succinate)/PBAT (propylene adipate and polybutylene terephthalate) composite and preparation method thereof | |
| CN102604164A (en) | Master batch capable of fully and biologically degrading plastic film and preparation method thereof | |
| CN102277005A (en) | Highly-filled fully-biodegradable packaging material | |
| CN113845621B (en) | Compatibilizer and high-starch-content full-biodegradable film adopting compatibilizer | |
| CN102134380B (en) | Completely biodegradable composite material and preparation method thereof | |
| CN102161797B (en) | Modified linear low-density polyethylene composite material and preparation method thereof | |
| CN107522904A (en) | A kind of Starch Based Biodegradable Plastics applied to packaging for foodstuff | |
| CN112210196A (en) | Biodegradable polylactic acid product and preparation method thereof | |
| CN113429764A (en) | starch/PLA-PGA-PBAT biodegradable and compostable special material and preparation method thereof | |
| CN115418083A (en) | Low-cost PBAT biodegradable material for film bag and preparation method thereof | |
| CN103205100B (en) | High-performance PPC (poly(propylene carbonate)) and PBS (poly(butylene succinate) blend and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20170531 |