CN108017887A - A kind of PLA-PBSA inflation films and preparation method thereof - Google Patents
A kind of PLA-PBSA inflation films and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D7/00—Producing flat articles, e.g. films or sheets
- B29D7/01—Films or sheets
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- 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
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- 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
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
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- 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
- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2467/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
Abstract
The present invention provides a kind of polylactic acid (PLA)/succinic acid fourth diester-two ester copolymer of adipic acid fourth (PBSA) inflation film and preparation method thereof.It is made of the mixture of PLA, PBSA, plasticizer adipic acid diethylene glycol monobutyl ether ester, lubricant, opening agent, antioxidant.PLA and PBSA, lubricant, opening agent, antioxidant elder generation machinery are mixed into premix, premix is added by double screw extruder charge door, plasticizer adipic acid diethylene glycol monobutyl ether ester is metered by double screw extruder liquid addition port at the same time, through melting extrusion, water cooling, pelletizing, it is resin dedicated that drying obtains polydactyl acid blown film, again through inflation film manufacturing machine Blown Film, transparent tear-proof Biodegradable film is obtained.PBSA, plasticizer, lubricant, opening agent, antioxidant can effectively improve the tension fracture elongation rate and tearing toughness of polylactic acid film, maintain the transparency of polylactic acid, solves polylactic acid film brittleness defect, there is film preferable mechanical property and the excellent transparency, alternative PE, PP, PVC etc. to prepare film and sheet material.
Description
Technical field
The invention belongs to polymeric material field, is related to a kind of PLA Biodegradable films and preparation method thereof.
Background technology
Different from traditional petroleum-based plastics, PLA is that lactic acid is polymerized as obtained by fermenting plant amylum, this is a kind of
Renewable resource, and there is biodegradation character, have very important significance to environmental protection.It is becoming tight in petroleum-based energy day
Under the situation opened, developmental research PLA resin is particularly important.The performances of PLA in itself are similar to general-purpose plastics polypropylene, such as mould
Amount is high, tensile strength is big and processability is good.But the brittleness of PLA is serious, impact strength is less than 5 KJ/m2, it is serious
Limit its extensive use.
PLA also has preferable processing performance and the transparency, can be suitably used for the processing sides such as traditional extrusion, injection, blowing
Method.Therefore, for PLA brittleness it is serious the shortcomings that energetically carrying out study on the modification both at home and abroad, using multicomponent blending and modifying
Method improve PLA toughness be current technical way, but be generally difficult to after the blended toughness reinforcings of PLA keep PLA resin
The transparency, how to obtain existing high tenacity, and the PLA resin with the transparency is to prepare degradable film for package and beverage bottle
Deng the requirement of product.
The research of PLA/ plasticizer or toughener blending and modifying is more, and PLA and small molecule or simple plasticizer are blended,
Achieve the purpose that to PLA plasticising even toughness reinforcing, while keep the transparency of PLA.(citrate plasticization and modification gathers citric acid ester type
Lactic acid (polymer material science and engineering, (2008), 24 (1):What 151-154.), Plasticizer Epoxidized Soybean Oil was blended grinds
Study carefully (Polymer Bulletin, (2009), 62 (1):91-98.) all PLA plasticization and modifications are studied, are achieved bright
Aobvious plasticization effect.The Chinese invention patent and paper in Application No. 201010281681.5 such as Zhang Huiliang, Dong Lisong
(Polymer Engineering and Science, (2013, 53:It 112-118)) have studied polyadipate 1,2- the third two
Modification work of the alcohol ester to PLA, polyadipate 1,2-PD ester can improve impact strength and the tension failure elongation of PLA
Rate.
Weraporn Pivsa-Art et al. are in periodical Energy Procedia (2011,9:581-588) have studied
PLA/PBSA weight ratios are fixed as 80/20, are separately added into weight ratio afterwards as 10%, 20%, 30%, 40%, and 50%
PBAT, blending extrusion and Blown Film, when PBAT additions are 20%, PLA/PBSA/PBAT blends have studies have shown that
Maximum tensile strength and impact strength, scanning electron microscope, which is shown between PLA/PBSA/PBAT blends, has excellent compatibility.
Vincent Ojijo et al. are in periodical Polymer (2015,80:1-17) report PLA and PBSA, expand
Chain agent blending extrusion prepares PLA/PBSA blends, and chain extender improves the interfacial adhesion of PLA and PBSA, and PBSA and chain extender are shown
Write the impact strength for improving PLA.
Vincent Ojijo et al. are in periodical ACS Applied Materials Interfaces (2012,4:
2405) 2395 report PLA and PBSA weight ratios being determined as 70/30, add the organic clay of 0-9%, extrusion system afterwards
Standby PLA/PBSA/ clay blends, the mechanical property for improving PLA/PBSA blends can be optimized by finding 2% organic clay.
Vincent Ojijo et al. are in periodical ACS Applied Materials Interfaces (2013,5:
4276) 4266 report PLA and PBSA weight ratios being determined as 70/30, add afterwards 2% triphenyl phosphite carry out it is anti-
Answer increase-volume, hence it is evident that improve the impact strength of PLA.
Vincent Ojijo et al. are in periodical Macromolecular Materials and Engineering
(2011, 296:865-877) report and PLA and PBSA weight ratios be determined as 70/30, add afterwards 6% montmorillonite into
Row blending extrusion, improves the hot property and mechanical property of PLA.
Thomas Malwela et al. are in periodical International Journal of Biological
Macromolecules (2015, 77:131-142) report and PLA and PBSA weight ratios are determined as 70/30, add afterwards
2% C20A, C30B and MEE type organic clay, extrusion prepare PLA/PBSA/ clay blends, pass through solvent after being dissolved in chloroform
Casting and spin coating prepare film, have studied the biodegradability of the film.
Amin Mirzadeh et al. are in periodical Journal of Applied Polymer Science (2015,132:
42664) report and PLA and PBSA weight ratios are determined as 90/10,80/20 and 70/30, add nanoclay and chain extender afterwards, squeeze
Go out to prepare blend, have studied different mixture composition and processing technology to blend viscosity and hydrophobic performance, the influence of mechanical property.
The Chinese invention patent of Application No. 201110060393.1 discloses a kind of Biodegradable film and lamination material
Material.The main mixture for including PBAT or PBS or PBAT and PBS, and PLA and other degradable high polymers,
Such as PBSA, PCL, PCL-BS and PHA, so that PLA be made, and the model mixture of PLA and PHAs, or PLA with
The mixture of PBAT and PBS, either PLA and PHAs and PBAT and PBS or other degradable high polymers is mixed
Compound.These novel fabrics and laminated material, have stronger biodegradable properties in the environment containing microorganism, and
Good shelf-life and good intensity, flexibility and pliability can be possessed.
The Chinese invention patent of Application No. 201110394731.5 disclose a kind of Full biodegradation plastic material and
Its preparation method, by weight percentage, includes PLA 20-40%；Long-branched aliphatic polyester or long-branched aliphatic-
Aromatic copolyester 50-60%；Chain extender 0.1-3%；Filler 1-10%；Plasticizer 5-10%；Antioxidant 0.1-1%；Lubricant
0.1-1%；Stabilizer 0.1-1%；Nucleator 0.1-1%.Its preparation method is to improve each component by reactive mixing extrusion
The mechanical characteristic of PBSA products, while the pliability and degradation rate of PLA are improved, obtained complete biodegradable plastics material
Material not only has excellent biodegradability and ageing properties, but also has excellent mechanical property and blown film processing performance.
The Chinese invention patent of Application No. 200510049546 disclose a kind of polylactic acid environmental protection complete degradable plastic and its
Production method.For the auxiliary agents such as PLA and polyvinyl alcohol, epoxidized soybean oil through mixed at high speed, PLA complete degradable plastics are made in granulation drying.
Product is transparent, soft, high mechanical strength, moisture-proof, anti-corrosion, and barrier properties for gases is good.
PLA modified films are studied both at home and abroad above, though the transparency of PLA films can be kept, does not study and improves it
The method of PLA film tearing toughness, and the brittleness of PLA films is serious, tear-proof and compliance difference are not that influence polylactic acid is thin
The widely applied main problem of film.The high grade of transparency is kept, while there is high tensile and tearing strength, product can be made not easily broken
Split, film article tear-proof, and keep complete biodegradable characteristic, be the very important performance for meeting PLA films.
The content of the invention
In order to solve the problems, such as that prior art exists, the present invention provides a kind of PLA/PBSA Biodegradable films and its system
Preparation Method.The present invention provides a kind of PLA/PBSA Biodegradable films, its constituent being formulated and mass fraction proportioning are：PLA
50-80 parts, 10-40 parts of PBSA, 5-15 parts of plasticizer, 0.1-1 parts of lubricant 0.1-1, opening agent, 0.1-0.5 parts of antioxidant.
The number-average molecular weight of the PLA is 50000-200000g/mol；
The toughener is that PBSA weight average molecular weight is 50000-200000g/mol；
Plasticizer is adipic acid diethylene glycol monobutyl ether ester；
Lubricant is ethylene bis stearic acid amide；
Opening agent is erucyl amide；
Antioxidant is three（2,4- di-tert-butyl-phenyls）Phosphite ester（Referred to as 168）With four [β-(3,5- di-t-butyl -4- hydroxyls
Phenyl) propionic acid] pentaerythritol ester（Referred to as 1010）Mixture, blending mass ratio be 1:1.
A kind of preparation method of PLA/PBSA inflation films is as follows：
By said ratio, dry PLA, PBSA and lubricant, opening agent, antioxidant are subjected to mechanical blending, time 1-3 is blended
Minute, then mixed material is added in double screw extruder hopper, plasticizer is by extruder liquid addition port by measuring
Pump-metered adds, while opens feeding-in solid body and liquid feedstock, and melting extrusion is granulated, and obtains transparent and toughness reinforcing PLA resin；Squeeze
The condition for going out granulation is：The design temperature of double screw extruder is：One area：130-150oC, 2nd area：160-180 oC, 3rd area：
160-190 oC, 4th area：160-190 oC, 5th area：160-190 oC, 6th area：160-190 oC, 7th area：160-190 oC, 8th area：
160-190 oC, head：160-190 oC, screw speed：100-300 rpm.The design temperature of inflation film manufacturing machine is：One area：150-155oC, 2nd area：160-170 oC, 3rd area：160-170 oC, 4th area：165-175 oC, 5th area：170-180 oC, main-machine screw rotating speed：
50-300 rpm, hauling speed 2-6m/min, blow-up ratio 2-6.
Beneficial effect：A kind of PLA Biodegradable films provided by the invention and preparation method thereof, PLA is used as using PBSA
Toughener, and be plasticizer with adipic acid diethylene glycol monobutyl ether ester, the tension failure elongation of PLA films can be effectively improved
Rate and tearing toughness, and plasticizer is nonpoisonous and tasteless, meets environmental requirement, and tearing strength reaches 80KN/m, solves PLA films
The defects of brittleness is serious, and the transparency of PLA is maintained, plasticizer can be obviously improved the rheological behaviour of material, and it is thin to improve PLA
The processing performance of film, the refraction index of PLA are obtained for 1.454, PBSA by succinic acid, adipic acid and butanediol through condensation polymerization,
Resin is creamy white, odorless tasteless, is easily decomposed by the enzyme in the multiple-microorganism or animal and plant body of nature, metabolism, final point
Solve as carbon dioxide and water, be typical fully biodegradable polymeric material.With good biocompatibility and biology
Absorbability；It is a kind of Biodegradable aliphatic polyester.Adipic acid diethylene glycol monobutyl ether ester is that a kind of nontoxic type rubber increases
Agent is moulded, volatility resistance, cold resistance and good weatherability, can assign product excellent low-temperature pliability；Refraction index all connects very much with PLA
Closely, PLA thin-film transparents can be kept.The blending modification method equipment is simple, and technique is advanced.Transparent tear-proof PLA film products
Application field is extensive, alternative PE, PVC etc., various environmentally-friendly transparent polybags is made, especially in food product packing film field, market
Have a extensive future.The industrialization of PLA is conducive to the energy and the needs of material resources long term growth, promotes deep processing of farm products, reduction pair
The dependence of oil, solves white pollution, promotes the development of Novel environment-friendlymaterial material industry, has great economy and social effect.
Embodiment
For a further understanding of the present invention, with reference to embodiment to PLA Biodegradable films provided by the invention and its
Preparation method is described.PLA in following embodiments is by Zhejiang Hisun Biomaterials Co., Ltd, model
EVODE110；PBSA is bought by Mitsubishi Chemical Co., Ltd., model AD92WN；Adipic acid diethylene glycol monobutyl ether ester by
Rohm＆Haas companies of the U.S. buy；Film stretchability can be that the standard of GB/T 1010.3-2006 is surveyed in following embodiments
Examination；Tearing toughness is tested according to the standard of QB/T 1130-91；Light transmittance and mist degree are the close sections of above Nereid
Learn the test that the WGT-S type Optical hazes instrument selection thickness of instrument company's production carries out for the thin-film material of 0.04mm.
Embodiment 1：The present invention provides a kind of PLA Biodegradable films, its constituent being formulated and mass fraction proportioning
For：
80 parts of PLA；
10 parts of PBSA；
9 parts of plasticizer adipic acid diethylene glycol monobutyl ether ester；
0.4 part of lubricant ethylene bis stearic acid amide；
0.4 part of opening agent erucyl amide；
Irgasfos 168 and 1010 in mass ratio 1:1 0.2 part of blend.
By more than formula weigh PLA, PBSA, ethylene bis stearic acid amide, erucyl amide, 168 and 1010, by each component into
Row mechanical blending 5 minutes, mixed raw material is added in double screw extruder, extruder side line peristaltic pump in extrusion
Above-mentioned adipic acid diethylene glycol monobutyl ether ester is quantitatively adding, the condition of extruding pelletization is：The design temperature of double screw extruder is：
One area：140oC, 2nd area：165oC, 3rd area：180oC, 4th area：180oC, 5th area：180oC, 6th area：180oC, 7th area：180oC, eight
Area：180oC, head：175oC, screw speed：200 rpm, polylactic acid blown film resin is obtained after extruding pelletization drying.By the resin
Through inflation film manufacturing machine Blown Film, the design temperature of inflation film manufacturing machine is：One area：165oC, 2nd area：167oC, 3rd area：170oC, 4th area：
170oC, 5th area：175oC, main-machine screw rotating speed：200 rpm, 6 m/min of hauling speed, blow-up ratio 3.Plastics thickness control exists
0.04mm, the mechanical property and light transmittance of testing film, test result are listed in table 1.
Embodiment 2：Each component is weighed by formula as below and quality：
70 parts of PLA；
20 parts of PBSA；
9 parts of plasticizer adipic acid diethylene glycol monobutyl ether ester；
0.4 part of lubricant ethylene bis stearic acid amide；
0.5 part of opening agent erucyl amide；
Irgasfos 168 and 1010 in mass ratio 1:1 0.1 part of blend.
This step extruding pelletization and blown film process are same as Example 1, plastics thickness control in 0.04mm, testing film
Mechanical property and light transmittance, test result are listed in table 1.
Embodiment 3：Each component is weighed by formula as below and quality：
60 parts of PLA；
30 parts of PBSA；
9 parts of plasticizer adipic acid diethylene glycol monobutyl ether ester；
0.4 part of lubricant ethylene bis stearic acid amide；
0.5 part of opening agent erucyl amide；
Irgasfos 168 and 1010 in mass ratio 1:1 0.1 part of blend.
This step extruding pelletization and blown film process are same as Example 1, plastics thickness control in 0.04mm, testing film
Mechanical property and light transmittance, test result are listed in table 1.
Embodiment 4：Each component is weighed by formula as below and quality：
50 parts of PLA；
40 parts of PBSA；
9 parts of plasticizer adipic acid diethylene glycol monobutyl ether ester；
0.4 part of lubricant ethylene bis stearic acid amide；
0.4 part of opening agent erucyl amide；
Irgasfos 168 and 1010 in mass ratio 1:1 0.2 part of blend.
By more than formula weigh PLA, PBSA, ethylene bis stearic acid amide, erucyl amide, 168 and 1010, by each component into
Row mechanical blending 5 minutes, mixed raw material is added in double screw extruder, extruder side line peristaltic pump in extrusion
Above-mentioned adipic acid diethylene glycol monobutyl ether ester is quantitatively adding, the condition of extruding pelletization is：The design temperature of double screw extruder is：
One area：130oC, 2nd area：155oC, 3rd area：170oC, 4th area：170oC, 5th area：170oC, 6th area：170oC, 7th area：170oC, eight
Area：170oC, head：165oC, screw speed：200 rpm, polylactic acid blown film resin is obtained after extruding pelletization drying.By the resin
Through inflation film manufacturing machine Blown Film, the design temperature of inflation film manufacturing machine is：One area：155oC, 2nd area：157oC, 3rd area：160oC, 4th area：
160oC, 5th area：165oC, main-machine screw rotating speed：200 rpm, 6 m/min of hauling speed, blow-up ratio 3.Plastics thickness control exists
0.04mm, the mechanical property and light transmittance of testing film, test result are listed in table 1.
Embodiment 5：Each component is weighed by formula as below and quality：
70 parts of PLA；
22.5 parts of PBSA；
5 parts of plasticizer adipic acid diethylene glycol monobutyl ether ester；
1 part of lubricant ethylene bis stearic acid amide；
1 part of opening agent erucyl amide；
Irgasfos 168 and 1010 in mass ratio 1:1 0.5 part of blend；
This step extruding pelletization and blown film process are same as Example 1, and plastics thickness control is in 0.04mm, the mechanics of testing film
Performance and light transmittance, test result are listed in table 1.
Embodiment 6：Each component is weighed by formula as below and quality：
70 parts of PLA；
14 parts of PBSA；
15 parts of plasticizer adipic acid diethylene glycol monobutyl ether ester；
0.4 part of lubricant ethylene bis stearic acid amide；
0.4 part of opening agent erucyl amide；
Irgasfos 168 and 1010 in mass ratio 1:1 0.2 part of blend.
This step extruding pelletization and blown film process are same as Example 1, plastics thickness control in 0.04mm, testing film
Mechanical property and light transmittance, test result are listed in table 1.
1 polylactic acid film mechanical property of table and light transmittance test result
When from the above results, using plasticizer loading increase provided by the invention, the stretching that can improve blend thin films is broken
Split elongation and transparency；For PLA/PBSA inflation films tensile strength while 30.5MPa is reached, material reaches tension failure
Elongation 117.2%, tearing toughness reach 115KN/m, and plasticizer adipic acid diethylene glycol monobutyl ether ester and PBSA can be right
PLA plays the role of modified synergic, PLA thin film mechanical performances is more optimized, so as to possess broader practice space.
The explanation of above example is only intended to help to understand method and its core concept of the invention.It should be pointed out that pair
For those skilled in the art, without departing from the principle of the present invention, the present invention can also be carried out
Some improvement and modification, these are improved and modification is also fallen into the protection domain of the claims in the present invention.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide scope caused.
Claims (4)
- A kind of 1. polylactic acid/succinic acid-butanediol ester-tetramethylene adipate copolymer Biodegradable film, it is characterised in that Its constituent being formulated and mass fraction proportioning are：10-40 parts of 50-80 parts of PLA, PBSA, 5-15 parts of plasticizer, lubricant 0.1-1 parts of 0.1-1, opening agent, 0.1-0.5 parts of antioxidant；The plasticizer is adipic acid diethylene glycol monobutyl ether ester；Lubrication Agent is ethylene bis stearic acid amide；Opening agent is erucyl amide.
- 2. PLA/PBSA Biodegradable films according to claim 1, it is characterised in that the equal molecule of number of the PLA Measure as 50000-200000g/mol.
- 3. PLA/PBSA Biodegradable films according to claim 1, it is characterised in that the Weight-average molecular of the PBSA Measure as 50000-200000g/mol.
- 4. a kind of preparation method of PLA/PBSA Biodegradable films as claimed in claim 1, it is characterised in that step and condition are such as Under；Each component is weighed according to a formula, and PLA and PBSA, lubricant, opening agent, antioxidant elder generation machinery are mixed into premix, Premix is added by double screw extruder charge door, while plasticizer is metered by double screw extruder liquid addition port, warp Melting extrusion, water cooling, pelletizing, it is resin dedicated that drying obtains modified PLA blown films, then through inflation film manufacturing machine Blown Film, obtains biological drop Degrading film；The condition of extruding pelletization is：The design temperature of double screw extruder is：One area：130-150oC, 2nd area：160- 180oC, 3rd area：160-190oC, 4th area：160-190oC, 5th area：160-190oC, 6th area：160-190oC, 7th area：160- 190oC, 8th area：160-190oC, head：160-190oC, screw speed：100-300 rpm；The design temperature of inflation film manufacturing machine is：One Area：150-155oC, 2nd area：160-170oC, 3rd area：160-170oC, 4th area：165-175oC, 5th area：170-180oC, host spiral shell Bar rotating speed：50-300 rpm, hauling speed 2-6m/min, blow-up ratio 2-6.
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Cited By (7)
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|---|---|---|---|---|
| CN108822514A (en) * | 2018-07-06 | 2018-11-16 | 黑龙江鑫达企业集团有限公司 | A kind of completely biological degradation polylactic acid base inflation film and preparation method thereof |
| CN109229812A (en) * | 2018-09-06 | 2019-01-18 | 吉林中粮生化有限公司 | A kind of three-layer co-extruded complete biodegradable express packaging bag and preparation method thereof |
| CN110607054A (en) * | 2019-09-26 | 2019-12-24 | 广东和创新材料有限公司 | Environment-friendly tensile film and manufacturing process thereof |
| CN113105730A (en) * | 2021-04-08 | 2021-07-13 | 珠海横琴辉泽丰包装科技有限公司 | Degradable environment-friendly film material with high transparency, preparation method and application |
| CN114230901A (en) * | 2022-01-28 | 2022-03-25 | 孙琇芳 | LDPE (Low-Density polyethylene)/PEO (polyethylene oxide) water swelling type fast-degrading film |
| CN114573963A (en) * | 2022-04-07 | 2022-06-03 | 常州博疆新材料科技有限公司 | Biodegradable breathable film and preparation method thereof |
| CN115537041A (en) * | 2022-10-31 | 2022-12-30 | 广西平果市润丰钙新材料科技有限公司 | Special nano calcium carbonate material for PLA transparent degradable master batch and modification method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6117928A (en) * | 1996-03-05 | 2000-09-12 | Neste Oy | Polylactide films |
| CN103113727A (en) * | 2013-01-31 | 2013-05-22 | 金发科技股份有限公司 | Completely biodegradable polylactic acid composite material, as well as preparation method and application thereof |
| CN103146160A (en) * | 2013-03-14 | 2013-06-12 | 上海交通大学 | Fully-biodegradable composition and preparation method thereof |
| CN104387732A (en) * | 2014-11-13 | 2015-03-04 | 中国科学院长春应用化学研究所 | Transparent, tear-resistant and biodegradable polylactic acid thin film and preparation method thereof |
-
2016
- 2016-11-02 CN CN201610943233.4A patent/CN108017887A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6117928A (en) * | 1996-03-05 | 2000-09-12 | Neste Oy | Polylactide films |
| CN103113727A (en) * | 2013-01-31 | 2013-05-22 | 金发科技股份有限公司 | Completely biodegradable polylactic acid composite material, as well as preparation method and application thereof |
| CN103146160A (en) * | 2013-03-14 | 2013-06-12 | 上海交通大学 | Fully-biodegradable composition and preparation method thereof |
| CN104387732A (en) * | 2014-11-13 | 2015-03-04 | 中国科学院长春应用化学研究所 | Transparent, tear-resistant and biodegradable polylactic acid thin film and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| YANGPING HAO ET AL.: "Diethylene glycol monobutyl ether adipate as a novel plasticizer for biodegradable polylactide", 《POLYM. BULL.》 * |
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