CN108276745A - Biodegradable packaging material and preparation method thereof - Google Patents
Biodegradable packaging material and preparation method thereof Download PDFInfo
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- CN108276745A CN108276745A CN201810119939.8A CN201810119939A CN108276745A CN 108276745 A CN108276745 A CN 108276745A CN 201810119939 A CN201810119939 A CN 201810119939A CN 108276745 A CN108276745 A CN 108276745A
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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
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- 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
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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
- C08J2431/00—Characterised by the use of 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 acyloxy radical of a saturated carboxylic acid, or carbonic acid, or of a haloformic acid
- C08J2431/02—Characterised by the use of omopolymers or copolymers of esters of monocarboxylic acids
- C08J2431/04—Homopolymers or copolymers of vinyl acetate
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- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2467/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/05—Alcohols; Metal alcoholates
- C08K5/053—Polyhydroxylic alcohols
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- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
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Abstract
The present invention discloses a kind of biodegradable packaging material and preparation method thereof, which includes following raw materials：A material 20 50%, B material 40 60%, PBAT thermoplastic biodegradables plastics 20 30%, 2505 polyvinyl acetate 3 8% of VINNEX；The A material include following raw materials：PBAT thermoplastic biodegradables plastics 40 60%, PLA 30 50%, inorganic filler 8 15%；The B material include following raw materials：PBAT thermoplastic biodegradables plastics 40 60%, starch master batch %40 60%, wherein the starch master batch includes following raw materials：Starch 60 70%, coupling agent 1 3%, paraffin 1 3%, glycerine 25 30%, citric acid 0.1 0.3% and epoxidized soybean oil 2 5%.
Description
Technical field：
The present invention relates to high polymer material technology domain, a kind of biodegradable packaging material and preparation method thereof is refered in particular to.
Background technology：
In packaging material field, PBAT (poly- hexanedioic acid/butylene terephthalate) is the life of most business development value
Biodegradable plastics close to 60% be PBAT are each of base material currently, in packaging group biodegradable plastic currently in use
Class modified material.Great market demand causes countries in the world to fall over each other research and development, investment, accelerates its commercialization process.Have no to doubt
It asks, biodegradable industry is the strategic industry of a tool high development and relationship environmental protection, emission reduction.
PBAT has superior physical characteristic and a degradability, but common PBAT is there is also elongation at break is low, cost
It is excessively high, the defects of degradation speed is too slow, affect its acceptance in the market.
In view of this, the present inventor proposes following technical scheme.
Invention content：
It is an object of the invention to overcome the deficiencies of the prior art and provide biodegradable packaging material and its preparation sides
Method.
In order to solve the above-mentioned technical problem, present invention employs the first following technical solutions：The biodegradable packaging
Material includes following raw materials：A expects that 20-50%, B expect 40-60%, PBAT thermoplastic biodegradable plastics
2505 polyvinyl acetate 3-8% of 20-30%, VINNEX；The A material include following raw materials：PBAT
Thermoplastic biodegradable plastics 40-60%, PLA 30-50%, inorganic filler 8-15%；B material include it is following by weight
The raw material of part proportioning：PBAT thermoplastic biodegradable plastics 40-60%, starch master batch %40-60%, wherein the starch master batch
Include following raw materials：Starch 60-70%, coupling agent 1-3%, paraffin 1-3%, glycerine 25-30%, lemon
Lemon acid 0.1-0.3% and epoxidized soybean oil 2-5%.
Furthermore, in above-mentioned technical proposal, the A material include following raw materials：PBAT heat
Plasticity biodegradable plastic 40-50%, PLA 40-50%, inorganic filler 10-15%；B material include it is following by weight
The raw material of proportioning：PBAT thermoplastic biodegradable plastics 50-60%, starch master batch %40-50%, wherein the starch master batch packet
Following raw materials are included：Starch 65-70%, coupling agent 2-3%, paraffin 2-3%, glycerine 25-28%, lemon
Sour 0.1-0.2% and epoxidized soybean oil 2-3%.
Furthermore, in above-mentioned technical proposal comprising following raw materials：The A expects 30%, B
Expect 35%, PBAT thermoplastic biodegradables plastics 30%, 2505 polyvinyl acetate 5% of VINNEX；A material include with
Under raw material by weight ratio：PBAT thermoplastic biodegradables plastics 50%, PLA 40%, inorganic filler 10%；The B material
Include following raw materials：PBAT thermoplastic biodegradables plastics 50%, starch master batch %50%, wherein
The starch master batch includes following raw materials：Starch 70%, coupling agent 3%, paraffin 2%, glycerine 22.9%,
Citric acid 0.1% and epoxidized soybean oil 2%.
Furthermore, in above-mentioned technical proposal comprising following raw materials：The A expects 20%, B
Expect 42%, PBAT thermoplastic biodegradables plastics 30%, 2505 polyvinyl acetate 8% of VINNEX；A material include with
Under raw material by weight ratio：PBAT thermoplastic biodegradables plastics 50%, PLA 40%, inorganic filler 10%；The B material
Include following raw materials：PBAT thermoplastic biodegradables plastics 50%, starch master batch %50%, wherein
The starch master batch includes following raw materials：Starch 70%, coupling agent 3%, paraffin 2%, glycerine 22.9%,
Citric acid 0.1% and epoxidized soybean oil 2%.
Furthermore, in above-mentioned technical proposal comprising following raw materials：The A expects 30%, B
Expect 37%, PBAT thermoplastic biodegradables plastics 30%, 2505 polyvinyl acetate 3% of VINNEX；A material include with
Under raw material by weight ratio：PBAT thermoplastic biodegradables plastics 50%, PLA 40%, inorganic filler 10%；The B material
Include following raw materials：PBAT thermoplastic biodegradables plastics 50%, starch master batch %50%, wherein
The starch master batch includes following raw materials：Starch 70%, coupling agent 3%, paraffin 2%, glycerine 22.9%,
Citric acid 0.1% and epoxidized soybean oil 2%.
Furthermore, in above-mentioned technical proposal, the inorganic filler is montmorillonite, calcium carbonate or talcum powder.
Furthermore, in above-mentioned technical proposal, the coupling agent is titante coupling agent.
In order to solve the above-mentioned technical problem, present invention employs following second of technical solutions：The biodegradable packaging
The preparation method of material includes the following steps：S001：A material are prepared, by raw material by weight ratio：PBAT thermoplasticity biologies drop
Solution plastics 50%, PLA 40%, inorganic filler 10% carry out being mixed and made into A material, for use；
S002：B material are prepared, first by raw material by weight ratio：Starch 70%, coupling agent 3%, paraffin 2%, glycerine
22.9%, citric acid 0.1% and epoxidized soybean oil 2% are added in the hopper of double screw extruder, set twin-screw extrusion
Each warm area of machine, operation temperature are 120-180 DEG C, and starch master batch can be obtained after tie rod pelletizing；It again will by weight ratio
Raw material：PBAT thermoplastic biodegradables plastics 50%, starch master batch %50% carry out being mixed and made into B material, for use；
S003：It will be expected by A obtained in step S001, be dropped by B material obtained and PBAT thermoplasticity biologies in step S002
Solution plastics, 2505 polyvinyl acetate of VINNEX are uniformly mixed after being added in high speed mixer, wherein its proportioning is：Institute
It states A and expects 30%, B material 35%, PBAT thermoplastic biodegradables plastics 30%, 2505 polyvinyl acetate 5% of VINNEX；
S004：The raw material mixed in step S003 are added in the hopper of double screw extruder, double spiral shells are set
Each warm area of bar extruder, operation temperature are 120~180 DEG C, and PBAT modified resins can be obtained after tie rod pelletizing；
S005：It is dry, PBAT modified resins are put into drying machine and are fully dried to water content≤500Pm；
S006：PBAT modified resins after drying are put into blown film in inflation film manufacturing machine, each warm area operation temperature of inflation film manufacturing machine by blown film
It is 100~180 DEG C, finally obtains biological degradation packaging material film.
In order to solve the above-mentioned technical problem, present invention employs the third following technical solutions：The biodegradable packaging
The preparation method of material includes the following steps：
S001：A material are prepared, by raw material by weight ratio：PBAT thermoplastic biodegradables plastics 50%, PLA
40%, inorganic filler 10% carries out being mixed and made into A material, for use；
S002：B material are prepared, first by raw material by weight ratio：Starch 70%, coupling agent 3%, paraffin 2%, glycerine
22.9%, citric acid 0.1% and epoxidized soybean oil 2% are added in the hopper of double screw extruder, set twin-screw extrusion
Each warm area of machine, operation temperature are 120-180 DEG C, and starch master batch can be obtained after tie rod pelletizing；It again will by weight ratio
Raw material：PBAT thermoplastic biodegradables plastics 50%, starch master batch %50% carry out being mixed and made into B material, for use；
S003：It will be expected by A obtained in step S001, be dropped by B material obtained and PBAT thermoplasticity biologies in step S002
Solution plastics, 2505 polyvinyl acetate of VINNEX are uniformly mixed after being added in high speed mixer, wherein its proportioning is：Institute
It states A and expects 20%, B material 42%, PBAT thermoplastic biodegradables plastics 30%, 2505 polyvinyl acetate 8% of VINNEX；
S004：The raw material mixed in step S003 are added in the hopper of double screw extruder, double spiral shells are set
Each warm area of bar extruder, operation temperature are 120~180 DEG C, and PBAT modified resins can be obtained after tie rod pelletizing；
S005：It is dry, PBAT modified resins are put into drying machine and are fully dried to water content≤500Pm；
S006：PBAT modified resins after drying are put into blown film in inflation film manufacturing machine, each warm area operation temperature of inflation film manufacturing machine by blown film
It is 100~180 DEG C, finally obtains biological degradation packaging material film.
In order to solve the above-mentioned technical problem, present invention employs following 4th kind of technical solutions：The biodegradable packaging
The preparation method of material includes the following steps：
S001：A material are prepared, by raw material by weight ratio：PBAT thermoplastic biodegradables plastics 50%, PLA
40%, inorganic filler 10% carries out being mixed and made into A material, for use；
S002：B material are prepared, first by raw material by weight ratio：Starch 70%, coupling agent 3%, paraffin 2%, glycerine
22.9%, citric acid 0.1% and epoxidized soybean oil 2% are added in the hopper of double screw extruder, set twin-screw extrusion
Each warm area of machine, operation temperature are 120-180 DEG C, and starch master batch can be obtained after tie rod pelletizing；It again will by weight ratio
Raw material：PBAT thermoplastic biodegradables plastics 50%, starch master batch %50% carry out being mixed and made into B material, for use；
S003：It will be expected by A obtained in step S001, be dropped by B material obtained and PBAT thermoplasticity biologies in step S002
Solution plastics, 2505 polyvinyl acetate of VINNEX are uniformly mixed after being added in high speed mixer, wherein its proportioning is：Institute
It states A and expects 30%, B material 37%, PBAT thermoplastic biodegradables plastics 30%, 2505 polyvinyl acetate 3% of VINNEX；
S004：The raw material mixed in step S003 are added in the hopper of double screw extruder, double spiral shells are set
Each warm area of bar extruder, operation temperature are 120~180 DEG C, and PBAT modified resins can be obtained after tie rod pelletizing；
S005：It is dry, PBAT modified resins are put into drying machine and are fully dried to water content≤500Pm；
S006：PBAT modified resins after drying are put into blown film in inflation film manufacturing machine, each warm area operation temperature of inflation film manufacturing machine by blown film
It is 100~180 DEG C, finally obtains biological degradation packaging material film.
After adopting the above technical scheme, the present invention has the advantages that compared with prior art：
1, the biodegradable packaging material proportioning of the present invention is reasonable, can improve degradation speed, and barrier property is good, and lead to
Cross the toughness and softness for adding 2505 polyvinyl acetate of VINNEX enhancing product, after film is made, longitudinal elongation
Rate 200.22%, intensity 23.27MPa, cross direction elongation 287.12%, intensity 18.49MPa, and it is more soft, toughness is more
Height, anti-puncture effect are even more ideal.
2, it is first fabricated to starch master batch, PBAT is free of in starch master batch, it is ensured that starch master batch being capable of mass production and a large amount of
Storage, starch master batch is non-aging, and shelf life is longer.
3, it is carried out in total powder manufacturing process using starch master batch and PBAT, temperature change is more stable, in operation can
Enough temperature for more stably controlling technique.
4, it is first fabricated to starch master batch and carries out total powder with PBAT again, better peptizaiton can be played, total powder effect is more
It is good, and evenly, plasticizing effect is more preferable for powder altogether, is more convenient.
5, the damage to particle can be reduced, it is ensured that equipment can normal operation, do not influence the normal service life of equipment.
Specific implementation mode：
With reference to specific embodiment, the present invention is further described.
The biodegradable packaging material of the present invention comprising following raw materials：A expects 20-50%, B material
2505 polyvinyl acetate 3-8% of 40-60%, PBAT thermoplastic biodegradable plastics 20-30%, VINNEX；The A material packet
Following raw materials are included：PBAT thermoplastic biodegradables plastics 40-60%, PLA 30-50%, inorganic filler
8-15%；The B material include following raw materials：PBAT thermoplastic biodegradable plastics 40-60%, starch
Master batch %40-60%, wherein the starch master batch includes following raw materials：Starch 60-70%, coupling agent
1-3%, paraffin 1-3%, glycerine 25-30%, citric acid 0.1-0.3% and epoxidized soybean oil 2-5%.
The inorganic filler is montmorillonite, calcium carbonate or talcum powder.
The coupling agent is titante coupling agent.
2505 polyvinyl acetate of VINNEX is prior art material, can be extremely compatible with PLA with flying colors, hence it is evident that
Improve its overall performance.
PLA (polylactic acid) is a kind of novel biology base and recyclable organism degradable material.
It further limits, the A material include following raw materials：PBAT thermoplastic biodegradables are moulded
Expect 40-50%, PLA 40-50%, inorganic filler 10-15%；The B material include following raw materials：
PBAT thermoplastic biodegradable plastics 50-60%, starch master batch %40-50%, wherein the starch master batch includes following by weight
Measure the raw material of part proportioning：Starch 65-70%, coupling agent 2-3%, paraffin 2-3%, glycerine 25-28%, citric acid 0.1-0.2%
With epoxidized soybean oil 2-3%.
The biodegradable packaging material proportioning of the present invention is reasonable, can improve degradation speed, and barrier property is good, and pass through
The toughness and softness for adding 2505 polyvinyl acetate of VINNEX enhancing product, after film is made, longitudinal tensile strain rate
200.22%, intensity 23.27MPa, cross direction elongation 287.12%, intensity 18.49MPa, and it is more soft, toughness higher,
Anti-puncture effect is even more ideal.
Embodiment one：
The biodegradable packaging material of the present invention includes following raw materials：The A expects 30%, B material
35%, PBAT thermoplastic biodegradable plastics 30%, 2505 polyvinyl acetate 5% of VINNEX；The A material include following
Raw material by weight ratio：PBAT thermoplastic biodegradables plastics 50%, PLA 40%, inorganic filler 10%；The B material packet
Following raw materials are included：PBAT thermoplastic biodegradables plastics 50%, starch master batch %50%, wherein should
Starch master batch includes following raw materials：Starch 70%, coupling agent 3%, paraffin 2%, glycerine 22.9%, lemon
Lemon acid 0.1% and epoxidized soybean oil 2%.
The preparation method of biodegradable packaging material includes the following steps in the present embodiment one：
S001：A material are prepared, by raw material by weight ratio：PBAT thermoplastic biodegradables plastics 50%, PLA
40%, inorganic filler 10% carries out being mixed and made into A material, for use；
S002：B material are prepared, first by raw material by weight ratio：Starch 70%, coupling agent 3%, paraffin 2%, glycerine
22.9%, citric acid 0.1% and epoxidized soybean oil 2% are added in the hopper of double screw extruder, set twin-screw extrusion
Each warm area of machine, operation temperature are 120-180 DEG C, and starch master batch can be obtained after tie rod pelletizing；It again will by weight ratio
Raw material：PBAT thermoplastic biodegradables plastics 50%, starch master batch %50% carry out being mixed and made into B material, for use；
S003：It will be expected by A obtained in step S001, be dropped by B material obtained and PBAT thermoplasticity biologies in step S002
Solution plastics, 2505 polyvinyl acetate of VINNEX are uniformly mixed after being added in high speed mixer, wherein its proportioning is：A
Expect 30%, B material 35%, PBAT thermoplastic biodegradables plastics 30%, 2505 polyvinyl acetate 5% of VINNEX；
S004：The raw material mixed in step S003 are added in the hopper of double screw extruder, double spiral shells are set
Each warm area of bar extruder, operation temperature are 120~180 DEG C, and PBAT modified resins can be obtained after tie rod pelletizing；
S005：It is dry, PBAT modified resins are put into drying machine and are fully dried to water content≤500Pm；
S006：PBAT modified resins after drying are put into blown film in inflation film manufacturing machine, each warm area operation temperature of inflation film manufacturing machine by blown film
It is 100~180 DEG C, finally obtains biological degradation packaging material film.
Embodiment two：
The biodegradable packaging material of the present invention includes following raw materials：The A expects 20%, B material
42%, PBAT thermoplastic biodegradable plastics 30%, 2505 polyvinyl acetate 8% of VINNEX；The A material include following
Raw material by weight ratio：PBAT thermoplastic biodegradables plastics 50%, PLA 40%, inorganic filler 10%；The B material packet
Following raw materials are included：PBAT thermoplastic biodegradables plastics 50%, starch master batch %50%, wherein should
Starch master batch includes following raw materials：Starch 70%, coupling agent 3%, paraffin 2%, glycerine 22.9%, lemon
Lemon acid 0.1% and epoxidized soybean oil 2%.
The preparation method of biodegradable packaging material includes the following steps in the present embodiment two：S001：A material are prepared, are pressed
Raw material by weight ratio：PBAT thermoplastic biodegradables plastics 40%, PLA 50%, inorganic filler 10% carry out mixing system
Expect at A, for use；
S002：B material are prepared, first by raw material by weight ratio：Starch 70%, coupling agent 3%, paraffin 2%, glycerine
22.9%, citric acid 0.1% and epoxidized soybean oil 2% are added in the hopper of double screw extruder, set twin-screw extrusion
Each warm area of machine, operation temperature are 120-180 DEG C, and starch master batch can be obtained after tie rod pelletizing；It again will by weight ratio
Raw material：PBAT thermoplastic biodegradables plastics 50%, starch master batch %50% carry out being mixed and made into B material, for use；
S003：It will be expected by A obtained in step S001, be dropped by B material obtained and PBAT thermoplasticity biologies in step S002
Solution plastics, 2505 polyvinyl acetate of VINNEX are uniformly mixed after being added in high speed mixer, wherein its proportioning is：Institute
It states A and expects 20%, B material 42%, PBAT thermoplastic biodegradables plastics 30%, 2505 polyvinyl acetate 8% of VINNEX；
S004：The raw material mixed in step S003 are added in the hopper of double screw extruder, double spiral shells are set
Each warm area of bar extruder, operation temperature are 120~180 DEG C, and PBAT modified resins can be obtained after tie rod pelletizing；
S005：It is dry, PBAT modified resins are put into drying machine and are fully dried to water content≤500Pm；
S006：PBAT modified resins after drying are put into blown film in inflation film manufacturing machine, each warm area operation temperature of inflation film manufacturing machine by blown film
It is 100~180 DEG C, finally obtains biological degradation packaging material film.
Embodiment three：
The biodegradable packaging material of the present invention includes following raw materials：The A expects 30%, B material
37%, PBAT thermoplastic biodegradable plastics 30%, 2505 polyvinyl acetate 3% of VINNEX；The A material include following
Raw material by weight ratio：PBAT thermoplastic biodegradables plastics 50%, PLA 40%, inorganic filler 10%；The B material packet
Following raw materials are included：PBAT thermoplastic biodegradables plastics 50%, starch master batch %50%, wherein should
Starch master batch includes following raw materials：Starch 70%, coupling agent 3%, paraffin 2%, glycerine 22.9%, lemon
Lemon acid 0.1% and epoxidized soybean oil 2%.
The preparation method of biodegradable packaging material includes the following steps in the present embodiment three：
S001：A material are prepared, by raw material by weight ratio：PBAT thermoplastic biodegradables plastics 40%, PLA
50%, inorganic filler 10% carries out being mixed and made into A material, for use；
S002：B material are prepared, first by raw material by weight ratio：Starch 70%, coupling agent 3%, paraffin 2%, glycerine
22.9%, citric acid 0.1% and epoxidized soybean oil 2% are added in the hopper of double screw extruder, set twin-screw extrusion
Each warm area of machine, operation temperature are 120-180 DEG C, and starch master batch can be obtained after tie rod pelletizing；It again will by weight ratio
Raw material：PBAT thermoplastic biodegradables plastics 50%, starch master batch %50% carry out being mixed and made into B material, for use；
S003：It will be expected by A obtained in step S001, be dropped by B material obtained and PBAT thermoplasticity biologies in step S002
Solution plastics, 2505 polyvinyl acetate of VINNEX are uniformly mixed after being added in high speed mixer, wherein its proportioning is：Institute
It states A and expects 30%, B material 37%, PBAT thermoplastic biodegradables plastics 30%, 2505 polyvinyl acetate 3% of VINNEX；
S004：The raw material mixed in step S003 are added in the hopper of double screw extruder, double spiral shells are set
Each warm area of bar extruder, operation temperature are 120~180 DEG C, and PBAT modified resins can be obtained after tie rod pelletizing；
S005：It is dry, PBAT modified resins are put into drying machine and are fully dried to water content≤500Pm；
S006：PBAT modified resins after drying are put into blown film in inflation film manufacturing machine, each warm area operation temperature of inflation film manufacturing machine by blown film
It is 100~180 DEG C, finally obtains biological degradation packaging material film.
In conclusion the biodegradable packaging material proportioning of the present invention is reasonable, degradation speed, and barrier property can be improved
It is good, and enhance the toughness and softness of product by adding 2505 polyvinyl acetate of VINNEX, after film is made,
Longitudinal tensile strain rate 200.22%, intensity 23.27MPa, cross direction elongation 287.12%, intensity 18.49MPa, and it is more soft,
Toughness higher, anti-puncture effect are even more ideal.
Certainly, the above is only a specific embodiment of the present invention, be not to limit the scope of the present invention, it is all according to
The equivalent change or modification that structure, feature and principle described in scope of the present invention patent is done should all be included in Shen of the present invention
It please be in the scope of the claims.
Claims (10)
1. biodegradable packaging material, it is characterised in that：It includes following raw materials：A expects 20-50%, B
Expect 40-60%, 2505 polyvinyl acetate 3-8% of PBAT thermoplastic biodegradable plastics 20-30%, VINNEX；
The A material include following raw materials：PBAT thermoplastic biodegradables plastics 40-60%, PLA 30-
50%, inorganic filler 8-15%；
The B material include following raw materials：PBAT thermoplastic biodegradable plastics 40-60%, starch are female
Grain %40-60%, wherein the starch master batch includes following raw materials：Starch 60-70%, coupling agent 1-
3%, paraffin 1-3%, glycerine 25-30%, citric acid 0.1-0.3% and epoxidized soybean oil 2-5%.
2. biodegradable packaging material according to claim 1, it is characterised in that：The A material include following by weight
Measure the raw material of part proportioning：PBAT thermoplastic biodegradables plastics 40-50%, PLA 40-50%, inorganic filler 10-15%；It is described
B material include following raw materials：PBAT thermoplastic biodegradable plastics 50-60%, starch master batch %40-
50%, wherein the starch master batch includes following raw materials：Starch 65-70%, coupling agent 2-3%, paraffin
2-3%, glycerine 25-28%, citric acid 0.1-0.2% and epoxidized soybean oil 2-3%.
3. biodegradable packaging material according to claim 2, it is characterised in that：It include it is following by weight ratio
Raw material：The A expects 30%, B material 35%, PBAT thermoplastic biodegradables plastics 30%, 2505 polyvinyl acetate of VINNEX
5%；The A material include following raw materials：PBAT thermoplastic biodegradables plastics 50%, PLA 40%,
Inorganic filler 10%；The B material include following raw materials：PBAT thermoplastic biodegradables plastics 50%,
Starch master batch %50%, wherein the starch master batch includes following raw materials：Starch 70%, coupling agent
3%, paraffin 2%, glycerine 22.9%, citric acid 0.1% and epoxidized soybean oil 2%.
4. biodegradable packaging material according to claim 2, it is characterised in that：It include it is following by weight ratio
Raw material：The A expects 20%, B material 42%, PBAT thermoplastic biodegradables plastics 30%, 2505 polyvinyl acetate of VINNEX
8%；The A material include following raw materials：PBAT thermoplastic biodegradables plastics 50%, PLA 40%,
Inorganic filler 10%；The B material include following raw materials：PBAT thermoplastic biodegradables plastics 50%,
Starch master batch %50%, wherein the starch master batch includes following raw materials：Starch 70%, coupling agent
3%, paraffin 2%, glycerine 22.9%, citric acid 0.1% and epoxidized soybean oil 2%.
5. biodegradable packaging material according to claim 2, it is characterised in that：It include it is following by weight ratio
Raw material：The A expects 30%, B material 37%, PBAT thermoplastic biodegradables plastics 30%, 2505 polyvinyl acetate of VINNEX
3%；The A material include following raw materials：PBAT thermoplastic biodegradables plastics 50%, PLA 40%,
Inorganic filler 10%；The B material include following raw materials：PBAT thermoplastic biodegradables plastics 50%,
Starch master batch %50%, wherein the starch master batch includes following raw materials：Starch 70%, coupling agent
3%, paraffin 2%, glycerine 22.9%, citric acid 0.1% and epoxidized soybean oil 2%.
6. biodegradable packaging material according to claim 1, it is characterised in that：The inorganic filler be montmorillonite,
Calcium carbonate or talcum powder.
7. biodegradable packaging material according to claim 1, it is characterised in that：The coupling agent is that titanate ester is even
Join agent.
8. the preparation method of biodegradable packaging material, it is characterised in that：It includes the following steps：
S001：A material are prepared, by raw material by weight ratio：PBAT thermoplastic biodegradables plastics 50%, PLA 40%, nothing
Machine filler 10% carries out being mixed and made into A material, for use；
S002：B material are prepared, first by raw material by weight ratio：Starch 70%, coupling agent 3%, paraffin 2%, glycerine
22.9%, citric acid 0.1% and epoxidized soybean oil 2% are added in the hopper of double screw extruder, set twin-screw extrusion
Each warm area of machine, operation temperature are 120-180 DEG C, and starch master batch can be obtained after tie rod pelletizing；It again will by weight ratio
Raw material：PBAT thermoplastic biodegradables plastics 50%, starch master batch %50% carry out being mixed and made into B material, for use；
S003：It will be expected by A obtained in step S001, be moulded by B material obtained and PBAT thermoplastic biodegradables in step S002
Material, 2505 polyvinyl acetate of VINNEX are uniformly mixed after being added in high speed mixer, wherein its proportioning is：The A
Expect 30%, B material 35%, PBAT thermoplastic biodegradables plastics 30%, 2505 polyvinyl acetate 5% of VINNEX；
S004：The raw material mixed in step S003 are added in the hopper of double screw extruder, twin-screw is set and squeezes
Go out each warm area of machine, operation temperature is 120~180 DEG C, and PBAT modified resins can be obtained after tie rod pelletizing；
S005：It is dry, PBAT modified resins are put into drying machine and are fully dried to water content≤500Pm；
S006：PBAT modified resins after drying are put into blown film in inflation film manufacturing machine by blown film, and each warm area operation temperature of inflation film manufacturing machine is
100~180 DEG C, finally obtain biological degradation packaging material film.
9. the preparation method of biodegradable packaging material, it is characterised in that：It includes the following steps：
S001：A material are prepared, by raw material by weight ratio：PBAT thermoplastic biodegradables plastics 50%, PLA 40%, nothing
Machine filler 10% carries out being mixed and made into A material, for use；
S002：B material are prepared, first by raw material by weight ratio：Starch 70%, coupling agent 3%, paraffin 2%, glycerine
22.9%, citric acid 0.1% and epoxidized soybean oil 2% are added in the hopper of double screw extruder, set twin-screw extrusion
Each warm area of machine, operation temperature are 120-180 DEG C, and starch master batch can be obtained after tie rod pelletizing；It again will by weight ratio
Raw material：PBAT thermoplastic biodegradables plastics 50%, starch master batch %50% carry out being mixed and made into B material, for use；
S003：It will be expected by A obtained in step S001, be moulded by B material obtained and PBAT thermoplastic biodegradables in step S002
Material, 2505 polyvinyl acetate of VINNEX are uniformly mixed after being added in high speed mixer, wherein its proportioning is：The A
Expect 20%, B material 42%, PBAT thermoplastic biodegradables plastics 30%, 2505 polyvinyl acetate 8% of VINNEX；
S004：The raw material mixed in step S003 are added in the hopper of double screw extruder, twin-screw is set and squeezes
Go out each warm area of machine, operation temperature is 120~180 DEG C, and PBAT modified resins can be obtained after tie rod pelletizing；
S005：It is dry, PBAT modified resins are put into drying machine and are fully dried to water content≤500Pm；
S006：PBAT modified resins after drying are put into blown film in inflation film manufacturing machine by blown film, and each warm area operation temperature of inflation film manufacturing machine is
100~180 DEG C, finally obtain biological degradation packaging material film.
10. the preparation method of biodegradable packaging material, it is characterised in that：It includes the following steps：
S001：A material are prepared, by raw material by weight ratio：PBAT thermoplastic biodegradables plastics 50%, PLA 40%, nothing
Machine filler 10% carries out being mixed and made into A material, for use；
S002：B material are prepared, first by raw material by weight ratio：Starch 70%, coupling agent 3%, paraffin 2%, glycerine
22.9%, citric acid 0.1% and epoxidized soybean oil 2% are added in the hopper of double screw extruder, set twin-screw extrusion
Each warm area of machine, operation temperature are 120-180 DEG C, and starch master batch can be obtained after tie rod pelletizing；It again will by weight ratio
Raw material：PBAT thermoplastic biodegradables plastics 50%, starch master batch %50% carry out being mixed and made into B material, for use；
S003：It will be expected by A obtained in step S001, be moulded by B material obtained and PBAT thermoplastic biodegradables in step S002
Material, 2505 polyvinyl acetate of VINNEX are uniformly mixed after being added in high speed mixer, wherein its proportioning is：The A
Expect 30%, B material 37%, PBAT thermoplastic biodegradables plastics 30%, 2505 polyvinyl acetate 3% of VINNEX；
S004：The raw material mixed in step S003 are added in the hopper of double screw extruder, twin-screw is set and squeezes
Go out each warm area of machine, operation temperature is 120~180 DEG C, and PBAT modified resins can be obtained after tie rod pelletizing；
S005：It is dry, PBAT modified resins are put into drying machine and are fully dried to water content≤500Pm；
S006：PBAT modified resins after drying are put into blown film in inflation film manufacturing machine by blown film, and each warm area operation temperature of inflation film manufacturing machine is
100~180 DEG C, finally obtain biological degradation packaging material film.
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| CN201810119939.8A CN108276745A (en) | 2018-02-05 | 2018-02-05 | Biodegradable packaging material and preparation method thereof |
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| CN115521593A (en) * | 2021-12-29 | 2022-12-27 | 嘉兴高正新材料科技股份有限公司 | High-toughness environment-friendly transparent composite film material and preparation method thereof |
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Application publication date: 20180713 |