CN113444346A - Organic and inorganic filled PBAT complete biodegradable material composition and particles and film prepared from same - Google Patents
Organic and inorganic filled PBAT complete biodegradable material composition and particles and film prepared from same Download PDFInfo
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- CN113444346A CN113444346A CN202110730585.2A CN202110730585A CN113444346A CN 113444346 A CN113444346 A CN 113444346A CN 202110730585 A CN202110730585 A CN 202110730585A CN 113444346 A CN113444346 A CN 113444346A
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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
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- 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
- C08J2403/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
- C08J2403/02—Starch; Degradation products thereof, e.g. dextrin
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2429/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
- C08J2429/02—Homopolymers or copolymers of unsaturated alcohols
- C08J2429/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
Abstract
The invention relates to the field of completely biodegradable materials, and discloses an organic and inorganic filled PBAT completely biodegradable material composition and particles and a film prepared from the same. The composition comprises the following components in parts by weight: PBAT50-80 parts by weight, PVA3-8 parts by weight, talcum powder 2-8 parts by weight, starch 10-30 parts by weight, plasticizer 1-5 parts by weight, lubricant 0.1-1 part by weight, compatilizer 0.1-0.5 part by weight, and chain extender 0.1-1 part by weight. The PBAT complete biodegradable material composition filled by mixing the organic material and the inorganic material can realize continuous granulation and blow molding, and the film has good performance.
Description
Technical Field
The invention relates to the field of fully degradable materials, in particular to an organic and inorganic filled PBAT fully biodegradable material composition and particles and a film prepared from the same.
Background
Along with the development of society, the living standard of people is improved, plastic bags can be used everywhere, so that the life of people can be facilitated, and convenience is brought to the life of people; meanwhile, the use of the plastic bag also threatens the survival of marine and land animals; because of this, the use of degradable plastic products is imminent.
PBAT has excellent flexibility and thermal stability, but the strength of PBAT is low, and the requirements of production and life cannot be met.
It is therefore desirable to provide a film that can take full advantage of the PBAT material while meeting production requirements.
Disclosure of Invention
The invention aims to overcome the problems that a PBAT material is low in strength and cannot meet requirements and the like, and provides an organic and inorganic filled PBAT completely biodegradable material composition and particles and a film prepared from the same. The PBAT complete biodegradable material composition filled by mixing the organic material and the inorganic material can realize continuous granulation and blow molding, and the prepared film has high strength and good color.
In order to achieve the above objects, in a first aspect, the present invention provides an organic and inorganic hybrid-filled PBAT complete biodegradable material composition comprising, in parts by weight: 50-80 parts of PBAT, 3-8 parts of PVA, 2-8 parts of talcum powder, 10-30 parts of starch, 1-5 parts of plasticizer, 0.1-1 part of lubricant, 0.1-0.5 part of compatilizer and 0.1-1 part of chain extender.
In a second aspect, the invention provides a method for preparing organic and inorganic mixed filled PBAT complete biodegradable particles, which adopts the composition of the invention and is prepared according to the following method:
adding starch and plasticizer into a stirrer, mixing and stirring at 300r/min at 200-.
In a third aspect, the present invention provides organic and inorganic hybrid filled PBAT fully biodegradable particles made by the method of the invention.
In a fourth aspect, the invention provides a fully biodegradable film of PBAT filled with a mixture of organic and inorganic materials prepared from the particles according to the invention by blow moulding.
The film provided by the invention has high strength, good color, no harm to the environment, degradability and capability of realizing continuous production.
Detailed Description
The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
The present invention will be described in detail below by way of examples. In the following examples, each material used was commercially available unless otherwise specified, and the method used was a conventional method in the art unless otherwise specified.
The endpoints of the ranges and any values disclosed herein are not limited to the precise range or value, and such ranges or values should be understood to encompass values close to those ranges or values. For ranges of values, between the endpoints of each of the ranges and the individual points, and between the individual points may be combined with each other to give one or more new ranges of values, and these ranges of values should be considered as specifically disclosed herein.
In a first aspect, the present invention provides an organic and inorganic hybrid filled PBAT complete biodegradable material composition comprising, in parts by weight: 50-80 parts of PBAT, 2-8 parts of PVA3, 2-8 parts of talcum powder, 10-30 parts of starch, 1-5 parts of plasticizer, 0.1-1 part of lubricant, 0.1-0.5 part of compatilizer and 0.1-1 part of chain extender.
In the present invention, preferably, the composition comprises, in parts by weight: 65-80 parts of PBAT, 5-78 parts of PVA3, 2-5 parts of talcum powder, 10-20 parts of starch, 2-4 parts of plasticizer, 0.1-0.6 part of lubricant, 0.1-0.3 part of compatilizer and 0.1-0.5 part of chain extender.
In the present invention, preferably, the melt flow rate of the PBAT is 2.99g/10 min.
In the present invention, the PVA is a partially alcoholysis type PVA, and preferably, the PVA has a polymerization degree of 2400-. For example, it may be one or more of the designations 0388, 0588, 1788, 2088, 2288, 2488.
In the present invention, preferably, the particle size of the talc powder is 500-800 mesh.
In the present invention, preferably, the starch is one or more of corn starch, tapioca starch, sweet potato starch, wheat starch, water chestnut starch, lotus root starch and corn starch.
In the present invention, preferably, the plasticizer is one or more of ethylene glycol, glycerin, sorbitol, mannitol, neopentyl glycol, trimethylolpropane, tetramethylolpropane, diethylene glycol, polyethylene glycol 200, polyethylene glycol 400, diethanolamine, triethanolamine, diglycerin, triglycerol, pentaglycerol, decaglycerol, and diethylene glycol.
In the present invention, preferably, the lubricant is one or more of paraffin wax, polyethylene wax, oxidized polyethylene wax, hardened oil, triglycerol monostearate, pentaerythritol stearate, stearic acid, and calcium stearate.
In the invention, preferably, the compatilizer is one or two of aluminate coupling agent, titanate coupling agent, SEBS-g-GMA, SEBS-g-MAH, olefin-GMA, POE-g-GMA, St-AN-GMA, anhydrous citric acid, E-MA-GMA and E-BA-GMA.
In the present invention, preferably, the chain extender is a polyurethane chain extender. For example, it may be ADR4368 or ADR 4370.
In a second aspect, the invention provides a method for preparing organic and inorganic mixed filled PBAT completely biodegradable particles, which is characterized in that the composition is prepared according to the following method:
adding starch and plasticizer into a stirrer, mixing and stirring at 300r/min at 200-.
In a specific embodiment of the invention, the preparation is carried out according to the following steps:
(1) adding starch and plasticizer into a stirrer, and mixing and stirring at 200-300r/min until the starch is completely plasticized;
(2) then adding PBAT, PVA, talcum powder and other auxiliary agents, and blending and stirring the mixture;
(3) extruding and granulating the uniformly stirred mixture by using a parallel double-screw granulator unit;
setting the temperature of each zone of the double-screw extruder to be 75-165 ℃: first zone at 75 deg.C, second zone at 95 deg.C, third zone at 110 deg.C, fourth zone at 125 deg.C, fifth zone at 135 deg.C, sixth zone at 140 deg.C, seventh zone at 145 deg.C, eighth zone at 145 deg.C, ninth zone at 150 deg.C, tenth zone at 150 deg.C, eleventh zone at 155 deg.C, twelfth zone at 160 deg.C, thirteenth zone at 165 deg.C, and head at 160 deg.C; the screw rotation speed is 350-400 r/min.
In a third aspect, the present invention provides organic and inorganic hybrid filled PBAT fully biodegradable particles prepared by the above method.
In a fourth aspect, the present invention provides a PBAT fully biodegradable film filled with a mixture of organic and inorganic materials prepared by blow molding of the above particles.
In a specific embodiment of the invention, the particles are subjected to blow molding to prepare an organic and inorganic mixed filled PBAT complete biodegradable film; setting each temperature zone of the blow molding machine: the first zone is 135 ℃, the second zone is 138 ℃, the third zone is 145 ℃, the fourth zone is 148 ℃, the fifth zone is 155 ℃, the temperature of the upper die head is 160 ℃, and the temperature of the lower die head is 160 ℃.
The present invention will be described in detail below with reference to examples, but the present invention is not limited to the following examples.
Example 1
An organic and inorganic filled PBAT complete biodegradable material composition comprises the following raw materials in parts by weight:
69 parts of PBAT, 3 parts of PVA 05885 parts of talcum powder, 20 parts of corn starch, 3 parts of glycerol, 0.4 part of pentaerythritol stearate, 0.2 part of anhydrous citric acid and 43680.3 parts of chain extender ADR.
Example 2
An organic and inorganic filled PBAT complete biodegradable material composition comprises the following raw materials in parts by weight:
69 parts of PBAT, 05885 parts of PVA, 3 parts of talcum powder, 20 parts of corn starch, 3 parts of glycerol, 0.4 part of stearic acid, 0.2 part of anhydrous citric acid and 43680.3 parts of chain extender ADR.
Example 3
An organic and inorganic filled PBAT complete biodegradable material composition comprises the following raw materials in parts by weight:
69 parts of PBAT, 05885 parts of PVA, 3 parts of talcum powder, 20 parts of corn starch, 3 parts of glycerol, 0.2 part of stearic acid and pentaerythritol stearate, 0.2 part of anhydrous citric acid and 43680.3 parts of a chain extender ADR.
Comparative example 1
An organic and inorganic filled PBAT complete biodegradable material composition comprises the following raw materials in parts by weight:
69 parts of PBAT, 3 parts of PVA 05885 parts of talcum powder, 20 parts of corn starch, 3 parts of glycerol, 0.4 part of aluminate coupling agent, 0.2 part of anhydrous citric acid and 43680.3 parts of chain extender ADR.
Comparative example 2
An organic and inorganic filled PBAT complete biodegradable material composition comprises the following raw materials in parts by weight:
69 parts of PBAT, 3 parts of PVA 05885 parts of talcum powder, 20 parts of corn starch, 3 parts of glycerol, 0.4 part of titanate coupling agent, 0.2 part of anhydrous citric acid and 43680.3 parts of chain extender ADR.
Preparation example
(1) Adding starch and a plasticizer into a stirrer, and mixing and stirring at 250r/min until the starch is completely plasticized;
(2) then adding PBAT, PVA, talcum powder and other auxiliary agents, and blending and stirring the mixture;
(3) extruding and granulating the uniformly stirred mixture by using a parallel double-screw granulator unit, and then performing blow molding on the obtained product by using a blow molding machine to prepare a film;
setting the temperature of each zone of the double-screw extruder to be 75-165 ℃: first zone 35 deg.C, second zone 45 deg.C, third zone 75 deg.C, fourth zone 125 deg.C, fifth zone 135 deg.C, sixth zone 140 deg.C, seventh zone 145 deg.C, eighth zone 145 deg.C, ninth zone 150 deg.C, tenth zone 150 deg.C, eleventh zone 155 deg.C, twelfth zone 160 deg.C, thirteenth zone 165 deg.C, and head 160 deg.C; setting the rotating speed of the screw rod to 380 r/min;
setting each temperature zone of the blow molding machine: the first zone is 135 ℃, the second zone is 138 ℃, the third zone is 145 ℃, the fourth zone is 148 ℃, the fifth zone is 155 ℃, the temperature of the upper die head is 160 ℃, and the temperature of the lower die head is 160 ℃.
Test example
The films obtained above were subjected to the test, and the results are shown in Table 1 below.
Performance evaluation method:
tensile strength, tear strength, lifting: and testing according to a corresponding national standard testing method.
And (3) testing tensile property: according to the test of GB/T1040.3-2006, the sample adopts type 2, the length is 150mm, the width is 15mm, and the test speed is 200 mm/min. Detecting data of the sample in the longitudinal direction and the transverse direction;
and (4) carrying out lifting performance test according to the regulation of GB/T21661-2008.
Tensile strength in MPa and elongation at break in%.
TABLE 1
As can be seen from table 1: the organic and inorganic filled PBAT complete biodegradable film provided by the invention has excellent mechanical properties and is suitable for various packaging bags.
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (13)
1. An organic and inorganic mixed filled PBAT complete biodegradable material composition, characterized in that the composition comprises, in parts by weight: PBAT50-80 parts by weight, PVA3-8 parts by weight, talcum powder 2-8 parts by weight, starch 10-30 parts by weight, plasticizer 1-5 parts by weight, lubricant 0.1-1 part by weight, compatilizer 0.1-0.5 part by weight, and chain extender 0.1-1 part by weight.
2. The organic and inorganic hybrid filled PBAT fully biodegradable material composition of claim 1, wherein the composition comprises, in parts by weight: PBAT65-80 parts by weight, PVA3-5 parts by weight, talcum powder 2-5 parts by weight, starch 10-20 parts by weight, plasticizer 2-4 parts by weight, lubricant 0.1-0.6 part by weight, compatilizer 0.1-0.3 part by weight, and chain extender 0.1-0.5 part by weight.
3. The organic and inorganic hybrid filled PBAT fully biodegradable material composition of claim 1 or 2, wherein the PBAT has a melt flow rate of 2.99g/10 min.
4. The organic and inorganic mixed-filled PBAT complete biodegradable material composition as claimed in claim 1 or 2, wherein the degree of polymerization of PVA is 500-2400, the degree of alcoholysis is 88%, and the particle size is 100-200 mesh.
5. The organic and inorganic mixed-filled PBAT complete biodegradable material composition as claimed in claim 1 or 2, wherein the particle size of the talc powder is 500-800 mesh.
6. The organic and inorganic hybrid filled PBAT fully biodegradable material composition of claim 1 or 2, wherein the starch is one or more of corn starch, tapioca starch, sweet potato starch, wheat starch, water caltrop starch, lotus root starch and corn starch.
7. The organic and inorganic hybrid filled PBAT complete biodegradable material composition according to claim 1 or 2, wherein the plasticizer is one or more of ethylene glycol, glycerol, sorbitol, mannitol, neopentyl glycol, trimethylolpropane, tetramethylolpropane, diethylene glycol, polyethylene glycol 200, polyethylene glycol 400, diethanolamine, triethanolamine, diglycerol, triglycerol, pentaglycerol, decaglycerol and diethylene glycol.
8. The organic and inorganic hybrid filled PBAT complete biodegradable material composition according to claim 1 or 2, wherein the lubricant is one or more of paraffin wax, polyethylene wax, oxidized polyethylene wax, hardened oil, triglycerol monostearate, pentaerythritol stearate, stearic acid and calcium stearate.
9. The organic and inorganic hybrid filled PBAT fully biodegradable material composition of claim 1 or 2, wherein the compatibilizing agent is one or two of aluminate coupling agent, titanate coupling agent, SEBS-g-GMA, SEBS-g-MAH, alkene-GMA, POE-g-GMA, St-AN-GMA, anhydrous citric acid, E-MA-GMA and E-BA-GMA.
10. The organic and inorganic hybrid filled PBAT complete biodegradable material composition according to claim 1 or 2, wherein the chain extender is a polyurethane type chain extender.
11. A method for preparing organic and inorganic hybrid-filled PBAT fully biodegradable particles, characterized in that the composition according to any of claims 1-10 is used, prepared according to the following method:
adding starch and plasticizer into a stirrer, mixing and stirring at 300r/min at 200-.
12. Organic and inorganic hybrid filled PBAT fully biodegradable particles made by the method of claim 11.
13. A fully biodegradable film of PBAT filled with a mixture of organic and inorganic by blow moulding from the particles of claim 12.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110730585.2A CN113444346A (en) | 2021-06-29 | 2021-06-29 | Organic and inorganic filled PBAT complete biodegradable material composition and particles and film prepared from same |
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| CN202110730585.2A CN113444346A (en) | 2021-06-29 | 2021-06-29 | Organic and inorganic filled PBAT complete biodegradable material composition and particles and film prepared from same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113956624A (en) * | 2021-10-26 | 2022-01-21 | 山西和合众新材料科技有限公司 | Preparation method of biomass full-degradable water-retention and fertility-increasing agricultural mulching film |
| CN116144147A (en) * | 2022-12-22 | 2023-05-23 | 四川大学 | Environment-friendly composite material and preparation method thereof |
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