CN103881145A - Biodegradable TPS/PBAT composite material and preparation method thereof - Google Patents
Biodegradable TPS/PBAT composite material and preparation method thereof Download PDFInfo
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- CN103881145A CN103881145A CN201210556637.XA CN201210556637A CN103881145A CN 103881145 A CN103881145 A CN 103881145A CN 201210556637 A CN201210556637 A CN 201210556637A CN 103881145 A CN103881145 A CN 103881145A
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- 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
- B29C48/04—Particle-shaped
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- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
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- 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
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
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- 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
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- 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
- B29C2948/92009—Measured parameter
- B29C2948/92314—Particular value claimed
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- 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
- B29C2948/92561—Time, e.g. start, termination, duration or interruption
-
- 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
- B29C2948/92838—Raw material pre-treatment, e.g. drying or cleaning
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Thermal Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Biological Depolymerization Polymers (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
The invention relates to a thermoplastic starch/poly hexane diacid/butylene terephthalate (TPS/PBAT)composite material, which is prepared by the following ingredients by weight: 100 parts of thermoplastic starch, and 40-100 parts of poly hexane diacid/butylene terephthalate. Compared with the prior art, the TPS/PBAT composite material has the advantages of excellent water proofness, good flexibility and easy formation machining. According to the invention, PBAT and TPS are blended for obviously improving the processing fluidity, mechanical property and water proofness of a starch-based material, and the system enables complete biodegradation. In addition, the method has the advantages of simple preparation technology, low equipment cost, and easy popularization and application.
Description
Technical field
The invention belongs to polymer composite field, relate to a kind of thermoplastic starch/poly-hexanodioic acid/butylene terephthalate (TPS/PBAT) matrix material and preparation method thereof.
Technical background
Enter 21 century, the Sustainable development of society and the environment relating to, resource and economic problems more and more receive people's concern, and natural high molecular substance (as starch) wide material sources are cheap, short and fully biodegradable of regeneration period.Therefore, the research and development of bio-degradable plastics have become the study hotspot in polymer composite field.
Native starch is polyol, forms the complete particle of microlitic structure between its neighboring molecule mainly with interaction of hydrogen bond.By different proportionings, native starch is mixed with the softening agent such as water and polyvalent alcohol, utilize high shear force and high temperature to destroy the crystallite of starch, make the unordered linear array of macromole, just can make former native starch there is thermoplasticity.Compared with most of common plasticses of current use, there is the shortcomings such as mechanical strength is low, water tolerance is bad in thermoplastic starch (TPS) plastics.Poly-hexanodioic acid/butylene terephthalate (PBAT) is the three-element copolymerized ester of terephthalic acid, hexanodioic acid and BDO, for recent domestic is studied the thermoplastic copolyesters of more a kind of fully biodegradable.
Through the literature search of prior art is found, Chinese patent 200910258749.5 discloses a kind of PPC and PBAT blend and preparation method, Chinese patent 201110351017.8 relates to a kind of increase-volume PLA/PBAT alloy, although the two blend obtaining all has biological degradability, and multipolymer macro-mechanical property to a certain extent makes moderate progress, but above-mentioned patent gained multipolymer all has that mobility is poor is not easy to machine-shaping, the defect such as snappiness is poor.
Summary of the invention
The defect the object of the invention is to for overcoming prior art provides a kind of biodegradable TPS/PBAT matrix material and preparation method thereof.Biodegradable TPS/PBAT matrix material prepared by the present invention guaranteeing under system fully biodegradable precondition, has the advantages such as the good easy-formation of mobility is processed, had excellent water-resistance, snappiness is good, and its mechanical property also has to a certain degree and improves simultaneously.
For achieving the above object, the present invention by the following technical solutions:
A kind of thermoplastic starch/poly-hexanodioic acid/butylene terephthalate matrix material, made by the component that comprises following weight part:
100 parts of thermoplastic starchs (TPS),
Poly-hexanodioic acid/butylene terephthalate (PBAT) 40-100 part.
The preferred 80-100 part of described poly-hexanodioic acid/butylene terephthalate.
Described thermoplastic starch (TPS) is selected from W-Gum, bell sweet potato starch, potato starch, wheat starch, water caltrop starch or Lotus Root Starch etc., preferably W-Gum.
The number-average molecular weight (Mn) of described poly-hexanodioic acid/butylene terephthalate is 2.6-8 ten thousand, is preferably 5-7 ten thousand.
A preparation method for above-mentioned TPS/PBAT matrix material, comprises the following steps:
(1) W-Gum is dried to 24 hours in 50 ℃ of-70 ℃ of baking ovens;
(2) 100 parts of W-Gums dried in step (1) are added in homogenizer and fully mixed with organic solvent, then through twin screw extruder extruding pelletization, obtain thermoplastic starch (TPS) master batch;
(3) thermoplastic starch (TPS) master batch obtaining in step (2) is dried to 24 hours in 60 ℃ of-80 ℃ of baking ovens, makes organic solvent volatilization complete;
(4) PBAT resin particle is dried to 24 hours in 70 ℃ of-90 ℃ of baking ovens;
(5) by even 40-100 part PBAT mixed with resin of the master batch after drying in step (3) and step (4) oven dry, through twin screw extruder extruding pelletization, obtain TPS/PBAT composite master batch;
(6) TPS/PBAT composite master batch is dried to 24 hours in 60 ℃ of-80 ℃ of baking ovens.
In described step (1), the extrusion temperature of twin screw extruder from opening for feed to head is followed successively by 60 ℃, 110 ℃, 115 ℃, 120 ℃, 120 ℃, 125 ℃.
Organic solvent in described step (2) is glycerol, general commercially available technical grade glycerol, the glycerol (100106193) that preferably Chemical Reagent Co., Ltd., Sinopharm Group produces.
In described step (5), the extrusion temperature of twin screw extruder from opening for feed to head is followed successively by 80 ℃, 130 ℃, 140 ℃, 150 ℃, 160 ℃, 160 ℃.
Compared with prior art, the present invention has the following advantages:
The biodegradable TPS/PBAT matrix material that the present invention obtains have have excellent water-resistance, the advantage such as the good and easy-formation processing of snappiness.PBAT and TPS blend can obviously be improved to processing fluidity, mechanical property and the water tolerance of starch-based material, and guarantee system fully biodegradable.In addition, the method preparation technology is relatively simple, and equipment cost is low, is easy to apply.
Embodiment
Further illustrate the present invention below in conjunction with specific embodiment.
In following embodiment, adopt following detection method:
Melt flow rate (MFR) (MFR) is pressed GB/T 3682-2000, at 190 ℃, under 2.16kg condition, tests.
Tensile property is pressed GB/T1040.1-20O6 test, rate of extension 50mm/min.
Water-absorbent test:
Under room temperature, sample is placed in moisture eliminator, a beaker that fills the saturated common salt aqueous solution is placed in moisture eliminator bottom, and maintaining relative humidity in moisture eliminator is 75%, and every 24h of mistake takes out sample and weighs, and is designated as G
i, (i=1,2,3,4 ...), the sample after weighing is still put back in moisture eliminator.After 20 days, sample is put into drying in oven (7O ℃, 24h), be then placed in moisture eliminator and be cooled to room temperature weighing sample, be designated as G
0.Press formula and calculate the water content (W in sample
i) %, the wherein consistent water-intake rate that calculates (240h) after 10 days of the water-intake rate in the present invention:
W
i=(G
i-G
0)／G
i×100％
Biodegradability:
Carry out biodegradation test according to standard ISO 14855amendment1 with controlled composting processing.Sample, through hot pressing film forming (10-20um), is cut into the print of 2cm × 2cm, imbeds in the culture dish that composting soil is housed, put into together the incubator of fixed temperature and humidity, keep humidity to be about 50%, temperature is (58 ± 2) ℃, regularly the weightlessness of sampling and testing sample, observes and records its surface topography.
Embodiment 1
(1) W-Gum is dried to 24 hours in 50 ℃ of-70 ℃ of baking ovens;
(2) 100 parts of W-Gums dried in step (1) are added in homogenizer and mixed with solvent glycerol, through twin screw extruder extruding pelletization.Extrusion temperature (from opening for feed to head) is followed successively by 60 ℃, 110 ℃, 115 ℃, 120 ℃, 120 ℃, 125 ℃, obtains TPS pellet;
(3) thermoplastic starch (TPS) master batch obtaining in step (2) is dried to 24 hours in 60 ℃ of-80 ℃ of baking ovens, makes glycerol volatilization complete;
(4) PBAT resin particle is dried to 24 hours in 70 ℃ of-90 ℃ of baking ovens;
(5) then by the 100 parts of TPS pellets of master batch after drying in step (3) and with 40 parts of PBAT(number-average molecular weights that step (4) is dried be 5.9 ten thousand) mixed with resin is even, through twin screw extruder extruding pelletization; Extrusion temperature (from opening for feed to head) is followed successively by 80 ℃, 130 ℃, 140 ℃, 150 ℃, 160 ℃, 160 ℃, obtains TPS/PBAT composite master batch;
(6) TPS/PBAT composite master batch is dried to 24 hours in 60 ℃ of-80 ℃ of baking ovens.
Finally on injection moulding machine, injection moulding obtains test specimens, and injection temperature is 160 ℃, 165 ℃, 160 ℃, and test result is in table 1.
Embodiment 2
(1) W-Gum is dried to 24 hours in 50 ℃ of-70 ℃ of baking ovens;
(2) 100 parts of W-Gums dried in step (1) are added in homogenizer and mixed with solvent glycerol, through twin screw extruder extruding pelletization.Extrusion temperature (from opening for feed to head) is followed successively by 60 ℃, 110 ℃, 115 ℃, 120 ℃, 120 ℃, 125 ℃, obtains TPS pellet;
(3) thermoplastic starch (TPS) master batch obtaining in step (2) is dried to 24 hours in 60 ℃ of-80 ℃ of baking ovens, makes glycerol volatilization complete;
(4) PBAT resin particle is dried to 24 hours in 70 ℃ of-90 ℃ of baking ovens;
(5) then by the 100 parts of TPS pellets of master batch after drying in step (3) and with 60 parts of PBAT(number-average molecular weights that step (4) is dried be 6.1 ten thousand) mixed with resin is even, through twin screw extruder extruding pelletization; Extrusion temperature (from opening for feed to head) is followed successively by 80 ℃, 130 ℃, 140 ℃, 150 ℃, 160 ℃, 160 ℃, obtains TPS/PBAT composite master batch;
(6) TPS/PBAT composite master batch is dried to 24 hours in 60 ℃ of-80 ℃ of baking ovens.
Finally on injection moulding machine, injection moulding obtains test specimens, and injection temperature is 160 ℃, 165 ℃, 160 ℃, and test result is in table 1.
Embodiment 3
(1) W-Gum is dried to 24 hours in 50 ℃ of-70 ℃ of baking ovens;
(2) 100 parts of W-Gums dried in step (1) are added in homogenizer and mixed with solvent glycerol, through twin screw extruder extruding pelletization.Extrusion temperature (from opening for feed to head) is followed successively by 60 ℃, 110 ℃, 115 ℃, 120 ℃, 120 ℃, 125 ℃, obtains TPS pellet;
(3) thermoplastic starch (TPS) master batch obtaining in step (2) is dried to 24 hours in 60 ℃ of-80 ℃ of baking ovens, makes glycerol volatilization complete;
(4) PBAT resin particle is dried to 24 hours in 70 ℃ of-90 ℃ of baking ovens;
(5) then by the 100 parts of TPS pellets of master batch after drying in step (3) and with 80 parts of PBAT(number-average molecular weights that step (4) is dried be 5.7 ten thousand) mixed with resin is even, through twin screw extruder extruding pelletization; Extrusion temperature (from opening for feed to head) is followed successively by 80 ℃, 130 ℃, 140 ℃, 150 ℃, 160 ℃, 160 ℃, obtains TPS/PBAT composite master batch;
(6) TPS/PBAT composite master batch is dried to 24 hours in 60 ℃ of-80 ℃ of baking ovens.
Finally on injection moulding machine, injection moulding obtains test specimens, and injection temperature is 160 ℃, 165 ℃, 160 ℃, and test result is in table 1.
Embodiment 4
(1) W-Gum is dried to 24 hours in 50 ℃ of-70 ℃ of baking ovens;
(2) 100 parts of W-Gums dried in step (1) are added in homogenizer and mixed with solvent glycerol, through twin screw extruder extruding pelletization.Extrusion temperature (from opening for feed to head) is followed successively by 60 ℃, 110 ℃, 115 ℃, 120 ℃, 120 ℃, 125 ℃, obtains TPS pellet;
(3) thermoplastic starch (TPS) master batch obtaining in step (2) is dried to 24 hours in 60 ℃ of-80 ℃ of baking ovens, makes glycerol volatilization complete;
(4) PBAT resin particle is dried to 24 hours in 70 ℃ of-90 ℃ of baking ovens;
(5) then by the 100 parts of TPS pellets of master batch after drying in step (3) and with 100 parts of PBAT(number-average molecular weights that step (4) is dried be 5.5 ten thousand) mixed with resin is even, through twin screw extruder extruding pelletization; Extrusion temperature (from opening for feed to head) is followed successively by 80 ℃, 130 ℃, 140 ℃, 150 ℃, 160 ℃, 160 ℃, obtains TPS/PBAT composite master batch;
(6) TPS/PBAT composite master batch is dried to 24 hours in 60 ℃ of-80 ℃ of baking ovens.
Finally on injection moulding machine, injection moulding obtains test specimens, and injection temperature is 160 ℃, 165 ℃, 160 ℃, and test result is in table 1.
Comparative example 1
(1) W-Gum is dried to 24 hours in 50 ℃ of-70 ℃ of baking ovens;
(2) 100 parts of W-Gums dried in step (1) are added in homogenizer and mixed with solvent glycerol, through twin screw extruder extruding pelletization.Extrusion temperature (from opening for feed to head) is followed successively by 60 ℃, 110 ℃, 115 ℃, 120 ℃, 120 ℃, 125 ℃, obtains TPS pellet;
(3) thermoplastic starch (TPS) master batch obtaining in step (2) is dried to 24 hours in 60-80 ℃ of baking oven, makes glycerol volatilization complete;
Finally on injection moulding machine, injection moulding obtains test specimens, and injection temperature is 120 ℃, 125 ℃, 120 ℃, and test result is in table 1.
Through experimental test, the performance test results of material is as table 1:
Table 1
Relatively can find out from the product test of the embodiment shown in table 1 and comparative example, its mobility of product prepared by the present invention, tensile strength, biodegradability, water resistance etc. are all better than pure thermoplastic starch (TPS).This is owing to there being a large amount of wetting ability hydroxyls on thermoplastic starch molecular chain, be easy to airborne moisture in conjunction with forming hydrogen bond, therefore its water resistance is poor, and PBAT resin has excellent hydrophobicity, itself and TPS blend can significantly be improved to the water resistance of matrix material.In addition, it is because the relative molecular mass of PBAT is not very large that the flowing property of matrix material can significantly improve, good fluidity own.
By implementation process and the detected result of each embodiment, the known matrix material obtaining in TPS that the PBAT of 40-100 part is added to by preparation method of the present invention, guaranteeing under the prerequisite of system fully biodegradable, there is good processing fluidity, mechanical property and water tolerance, therefore there is wider application prospect.
The above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.Person skilled in the art obviously can easily make various modifications to these embodiment, and General Principle described herein is applied in other embodiment and needn't passes through performing creative labour.Therefore, the invention is not restricted to the embodiment here, those skilled in the art are according to announcement of the present invention, and not departing from the improvement that category of the present invention makes and revise all should be within protection scope of the present invention.
Claims (8)
1. thermoplastic starch/poly-hexanodioic acid/butylene terephthalate matrix material, is characterized in that: be made up of the component that comprises following weight part:
100 parts of thermoplastic starchs,
Poly-hexanodioic acid/butylene terephthalate 40-100 part.
2. thermoplastic starch according to claim 1/poly-hexanodioic acid/butylene terephthalate matrix material, is characterized in that: described poly-hexanodioic acid/butylene terephthalate is 80-100 part.
3. thermoplastic starch according to claim 1/poly-hexanodioic acid/butylene terephthalate matrix material, it is characterized in that: described thermoplastic starch is selected from W-Gum, bell sweet potato starch, potato starch, wheat starch, water caltrop starch or Lotus Root Starch, preferably W-Gum.
4. thermoplastic starch according to claim 1/poly-hexanodioic acid/butylene terephthalate matrix material, is characterized in that: the number-average molecular weight of described poly-hexanodioic acid/butylene terephthalate is 2.6-8 ten thousand, is preferably 5-7 ten thousand.
5. a preparation method for arbitrary described thermoplastic starch/poly-hexanodioic acid/butylene terephthalate matrix material in the claims 1-4, is characterized in that: comprise the following steps:
(1) W-Gum is dried to 24 hours in 50 ℃ of-70 ℃ of baking ovens;
(2) 100 parts of W-Gums dried in step (1) are joined in homogenizer and fully mixed with organic solvent, then through twin screw extruder extruding pelletization, obtain thermoplastic starch master batch;
(3) the thermoplastic starch master batch obtaining in step (2) is dried to 24 hours in 60 ℃ of-80 ℃ of baking ovens, makes organic solvent volatilization complete;
(4) PBAT resin particle is dried to 24 hours in 70 ℃ of-90 ℃ of baking ovens;
(5) by even the poly-hexanodioic acid/butylene terephthalate mixed with resin of 40-100 part of the master batch after drying in step (3) and step (4) oven dry, through twin screw extruder extruding pelletization, obtain TPS/PBAT composite master batch;
(6) thermoplastic starch/poly-hexanodioic acid/butylene terephthalate composite master batch is dried to 24 hours in 60 ℃ of-80 ℃ of baking ovens.
6. preparation method according to claim 5, is characterized in that: in described step (1), the extrusion temperature of twin screw extruder from opening for feed to head is followed successively by 60 ℃, 110 ℃, 115 ℃, 120 ℃, 120 ℃, 125 ℃.
7. preparation method according to claim 5, is characterized in that: in described step (2), organic solvent is glycerol.
8. preparation method according to claim 5, is characterized in that: in described step (5), the extrusion temperature of twin screw extruder from opening for feed to head is followed successively by 80 ℃, 130 ℃, 140 ℃, 150 ℃, 160 ℃, 160 ℃.
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| CN114599732A (en) * | 2019-10-21 | 2022-06-07 | 绿鲸环球有限公司 | Renewable resin compositions and articles made therefrom |
| CN112724577A (en) * | 2020-12-22 | 2021-04-30 | 金发科技股份有限公司 | Scratch-resistant ACS/PBAT compound and preparation method and application thereof |
| CN116656011A (en) * | 2023-06-25 | 2023-08-29 | 广州纳研新材料科技有限公司 | High-temperature-resistant high-humidity-resistant high-mechanical-property low-migration-capacity PBAT/TPS composite material and preparation and application thereof |
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