CN105860492B - A kind of preparation method of edible packaging membrane material - Google Patents

A kind of preparation method of edible packaging membrane material Download PDF

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Publication number
CN105860492B
CN105860492B CN201610275761.7A CN201610275761A CN105860492B CN 105860492 B CN105860492 B CN 105860492B CN 201610275761 A CN201610275761 A CN 201610275761A CN 105860492 B CN105860492 B CN 105860492B
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China
Prior art keywords
parts
screw
membrane material
starch
acetic acid
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Expired - Fee Related
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CN201610275761.7A
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Chinese (zh)
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CN105860492A (en
Inventor
顾建芳
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Tripartite Confrontation Packing Co Ltd Of Suzhou City
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Tripartite Confrontation Packing Co Ltd Of Suzhou City
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    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L3/00Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
    • C08L3/02Starch; Degradation products thereof, e.g. dextrin
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L71/00Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
    • C08L71/02Polyalkylene oxides
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00Properties
    • C08L2201/06Biodegradable
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00Applications
    • C08L2203/16Applications used for films
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

Abstract

The present invention provides a kind of preparation methods of edible packaging membrane material, first take polylactic acid, 3 butyric ester, 4 hydroxybutyric acid ester copolymer, chitosan, lemon, sorbester p17, acetic acid, polyethylene glycol, Vegetable oil, peroxide acetic acid butyl ester, mixing, double screw extruder melting extrusion is added in gained mixed material again to be granulated, finally gained particle is mixed with polypropylene glycol, inorganic filler, starch, mixture be sent into single screw extrusion machine hot-melt extruded blowing to get.There is the packaging membrane material of the present invention good mechanical performance and barrier property, easily biological-degradable to have a good application prospect.

Description

A kind of preparation method of edible packaging membrane material
Technical field
The invention belongs to field of packaging material, and in particular to a kind of preparation method of edible packaging membrane material.
Background technology
Edible packaging membrane material refers to passing through intermolecular different interactions using edible natural substance as raw material And the film of the compact structure constituted, type generally have polysaccharide, protein, lipid and its compound etc..With conventional packaging material It compares, edible packing material is typically considered safe(GRAS), there is following characteristics:(1) edible, there is preferable object Rationality energy, film is transparent, nontoxic, and the mechanical strength of food surface can be improved;(2) gas barrier property that blocks water is good, can delay in food Water and other ingredients adjust gas composition to external migration and diffusion;(3) color in food, nutrition be can be used as and resisted The carrier of fungus matter etc..Chitosan in polysaccharide is the second largest natural polysaccharide that nature is only second to cellulose, is that chitin is de- Product after acetyl has good biocompatibility and degradability, and the shell of 1-2% is poly- since chitosan is safe and non-toxic Sugar is good as membrane material its film forming, the gas barrier property that blocks water, and can load the active constituent and nutriment of high concentration, be widely used in food Product are fresh-keeping.
Invention content
A kind of preparation method of edible packaging membrane material is provided the purpose of the present invention is overcome the deficiencies in the prior art, There is the packaging membrane material good mechanical performance and barrier property, easily biological-degradable to have a good application prospect.
A kind of preparation method of edible packaging membrane material, includes the following steps:
Step 1, in parts by weight, 1~5 part of polylactic acid, 3-hydroxybutyrate ester -4 hydroxybutyric acid ester copolymer 4~7 are taken Part, 4~9 parts of chitosan, 3~6 parts of lemon, 2~7 parts of sorbester p17,4~10 parts of acetic acid, 2~5 parts of polyethylene glycol, plant 1~5 part of oil extract, 3~5 parts of peroxide acetic acid butyl ester, mixing, obtain mixed material;
Step 2, double screw extruder melting extrusion is added in step 1 gained mixed material to be granulated;
Step 3, in parts by weight, by 10~14 parts of step 2 gained particle and 2~5 parts of polypropylene glycol, inorganic filler 1~4 Part, the mixing of 3~6 parts of starch, mixture be sent into the blowing of single screw extrusion machine hot-melt extruded to get.
Further, the molecular weight of the polylactic acid described in step 1 is 200000~300000.
Further, starch is the arbitrary ratio of one or more of cornstarch, potato starch or tapioca in step 1 Example mixture.
Further, Vegetable oil is tocopherol in step 1.
Further, 150~250rpm of screw speed of dual-screw-stem machine, temperature are 160~190 DEG C in step 2.
Further, the hot melting temperature of single-screw machine is 175~180 DEG C in step 3.
Further, inorganic filler is that one or more of calcium carbonate, talcum powder, silica, calcium silicates are appointed in step 3 Meaning scalemic thereof.
There is the packaging membrane material of the present invention good mechanical performance and barrier property, easily biological-degradable to have good Application prospect.
Specific implementation mode
Embodiment 1
A kind of preparation method of edible packaging membrane material, includes the following steps:
Step 1, in parts by weight, take 1 part of polylactic acid, 3-hydroxybutyrate ester -4 parts of 4 hydroxybutyric acid ester copolymer, shell poly- 4 parts of sugar, 3 parts of lemon, 2 parts of sorbester p17,4 parts of acetic acid, 2 parts of polyethylene glycol, 1 part of Vegetable oil, peracetic acid uncle 3 parts of butyl ester, mixing, obtains mixed material;
Step 2, double screw extruder melting extrusion is added in step 1 gained mixed material to be granulated;
Step 3, in parts by weight, by 10 parts of step 2 gained particle and 2 parts of polypropylene glycol, 1 part of inorganic filler, 3 parts of starch Mixing, mixture be sent into single screw extrusion machine hot-melt extruded blowing to get.
Wherein, the molecular weight of the polylactic acid described in step 1 is 200000, and starch is cornstarch, Vegetable oil For tocopherol;The screw speed 150rpm of dual-screw-stem machine, temperature are 190 DEG C in step 2;The hot melt temperature of single-screw machine in step 3 Degree is 175 DEG C, and inorganic filler is calcium carbonate.
Under the conditions of RH75%, the moisture permeable coefficient that gained packs membrane material is 23.07 × 10-11g·m-1·s-1·Pa-1, draw It is 36.14MPa to stretch intensity, and elongation at break 2.84%, penetration power 11.35N, penetration range is in 4.27mm.
Embodiment 2
A kind of preparation method of edible packaging membrane material, includes the following steps:
Step 1, in parts by weight, take 2 parts of polylactic acid, 3-hydroxybutyrate ester -5 parts of 4 hydroxybutyric acid ester copolymer, shell poly- 7 parts of sugar, 5 parts of lemon, 4 parts of sorbester p17,9 parts of acetic acid, 4 parts of polyethylene glycol, 3 parts of Vegetable oil, peracetic acid uncle 4 parts of butyl ester, mixing, obtains mixed material;
Step 2, double screw extruder melting extrusion is added in step 1 gained mixed material to be granulated;
Step 3, in parts by weight, by 13 parts of step 2 gained particle and 4 parts of polypropylene glycol, 3 parts of inorganic filler, 5 parts of starch Mixing, mixture be sent into single screw extrusion machine hot-melt extruded blowing to get.
Wherein, the molecular weight of the polylactic acid described in step 1 is 250000, and starch is cornstarch, Vegetable oil For tocopherol;The screw speed 180rpm of dual-screw-stem machine, temperature are 170 DEG C in step 2;The hot melt temperature of single-screw machine in step 3 Degree is 175 DEG C, and inorganic filler is calcium carbonate.
Under the conditions of RH75%, the moisture permeable coefficient that gained packs membrane material is 18.79 × 10-11g·m-1·s-1·Pa-1, draw It is 36.72MPa to stretch intensity, and elongation at break 2.84%, penetration power 11.96N, penetration range is in 4.21mm.
Embodiment 3
A kind of preparation method of edible packaging membrane material, includes the following steps:
Step 1, in parts by weight, take 4 parts of polylactic acid, 3-hydroxybutyrate ester -6 parts of 4 hydroxybutyric acid ester copolymer, shell poly- 8 parts of sugar, 5 parts of lemon, 6 parts of sorbester p17,9 parts of acetic acid, 4 parts of polyethylene glycol, 3 parts of Vegetable oil, peracetic acid uncle 4 parts of butyl ester, mixing, obtains mixed material;
Step 2, double screw extruder melting extrusion is added in step 1 gained mixed material to be granulated;
Step 3, in parts by weight, by 13 parts of step 2 gained particle and 4 parts of polypropylene glycol, 2 parts of inorganic filler, 4 parts of starch Mixing, mixture be sent into single screw extrusion machine hot-melt extruded blowing to get.
Wherein, the molecular weight of the polylactic acid described in step 1 is 230000, and starch is tapioca, Vegetable oil For tocopherol;The screw speed 190rpm of dual-screw-stem machine, temperature are 170 DEG C in step 2;The hot melt temperature of single-screw machine in step 3 Degree is 175 DEG C, and inorganic filler is silica.
Under the conditions of RH75%, the moisture permeable coefficient that gained packs membrane material is 17.59 × 10-11g·m-1·s-1·Pa-1, draw It is 33.08MPa to stretch intensity, and elongation at break 2.62%, penetration power 11.54N, penetration range is in 4.12mm.
Embodiment 4
A kind of preparation method of edible packaging membrane material, includes the following steps:
Step 1, in parts by weight, take 5 parts of polylactic acid, 3-hydroxybutyrate ester -7 parts of 4 hydroxybutyric acid ester copolymer, shell poly- 9 parts of sugar, 6 parts of lemon, 7 parts of sorbester p17,10 parts of acetic acid, 5 parts of polyethylene glycol, 5 parts of Vegetable oil, peracetic acid 5 parts of the tert-butyl ester, mixing, obtains mixed material;
Step 2, double screw extruder melting extrusion is added in step 1 gained mixed material to be granulated;
Step 3, in parts by weight, by 14 parts of step 2 gained particle and 5 parts of polypropylene glycol, 4 parts of inorganic filler, 6 parts of starch Mixing, mixture be sent into single screw extrusion machine hot-melt extruded blowing to get.
Wherein, the molecular weight of the polylactic acid described in step 1 is 300000, and starch is the mixed of cornstarch and potato starch Object is closed, Vegetable oil is tocopherol;The screw speed 250rpm of dual-screw-stem machine, temperature are 160 DEG C in step 2;In step 3 The hot melting temperature of single-screw machine is 180 DEG C, and inorganic filler is the mixture of calcium carbonate, talcum powder, silica, calcium silicates.
Under the conditions of RH75%, the moisture permeable coefficient that gained packs membrane material is 19.65 × 10-11g·m-1·s-1·Pa-1, draw It is 32.17MPa to stretch intensity, and elongation at break 2.69%, penetration power 11.48N, penetration range is in 4.12mm.

Claims (1)

1. a kind of preparation method of edible packaging membrane material, it is characterised in that:Include the following steps:
Step 1, in parts by weight, 1~5 part of polylactic acid, 3-hydroxybutyrate ester -4~7 parts of 4 hydroxybutyric acid ester copolymer, shell are taken 4~9 parts of glycan, 3~6 parts of lemon, 2~7 parts of sorbester p17,4~10 parts of acetic acid, 2~5 parts of polyethylene glycol, plant oil extract 1~5 part of object, 3~5 parts of peroxide acetic acid butyl ester, mixing, obtain mixed material;
Step 2, double screw extruder melting extrusion is added in step 1 gained mixed material to be granulated;
Step 3, in parts by weight, by 2~5 parts of 10~14 parts of step 2 gained particle and polypropylene glycol, 1~4 part of inorganic filler, The mixing of 3~6 parts of starch, mixture be sent into the blowing of single screw extrusion machine hot-melt extruded to get;
The molecular weight of the polylactic acid is 200000~300000;
The starch is one or more of cornstarch, potato starch or tapioca arbitrary proportion mixture;
The Vegetable oil is tocopherol;
150~250rpm of screw speed of the dual-screw-stem machine, temperature are 160~190 DEG C;
The hot melting temperature of the single-screw machine is 175~180 DEG C;
The inorganic filler is one or more of calcium carbonate, talcum powder, silica, calcium silicates arbitrary proportion mixture.
CN201610275761.7A 2016-04-29 2016-04-29 A kind of preparation method of edible packaging membrane material Expired - Fee Related CN105860492B (en)

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Publication number Priority date Publication date Assignee Title
CN106519631B (en) * 2016-11-28 2018-05-15 天津科技大学 A kind of antibacterial degradable packaging material for food and its preparation
WO2018106191A1 (en) * 2016-12-09 2018-06-14 National University Of Singapore A packaging material and method of preparation thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101210101A (en) * 2006-12-29 2008-07-02 天津国韵生物科技有限公司 Composition containing polyhydroxy butyrate ester copolymer and polylactic acid for sheet, thin film, pipeline and fibrous material

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101210101A (en) * 2006-12-29 2008-07-02 天津国韵生物科技有限公司 Composition containing polyhydroxy butyrate ester copolymer and polylactic acid for sheet, thin film, pipeline and fibrous material

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