CN109553940A - A kind of moisture-inhibiting degradation preservative film and preparation method thereof - Google Patents
A kind of moisture-inhibiting degradation preservative film and preparation method thereof Download PDFInfo
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- CN109553940A CN109553940A CN201811213911.7A CN201811213911A CN109553940A CN 109553940 A CN109553940 A CN 109553940A CN 201811213911 A CN201811213911 A CN 201811213911A CN 109553940 A CN109553940 A CN 109553940A
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- moisture
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- preservative film
- starch
- inhibiting
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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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/04—Polyesters derived from hydroxy carboxylic acids, e.g. lactones
-
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/02—Ingredients treated with inorganic substances
Abstract
The invention discloses a kind of moisture-inhibiting degradation preservative films and preparation method thereof, and the preservative film of preparation tensile strength with higher, mechanical property is preferable, while its degradation property, water vapour permeability are excellent.Cornstarch, tapioca, Faba bean starch are mixed with reasonable proportion, so that the mechanical property of target material, degradation property is adjusted to optimum state, reduces the usage amount of polyhydroxyalkanoate, reduce the production cost of target material；Cornstarch, tapioca, Faba bean starch are modified using vinyl acetate, the hydrophily of starch is improved, improves its viscosity and filming performance, to enhance the tensile resistance of target material；Aluminosilicate zeolite is modified, substantially increase its porosity and specific surface area, impetus is provided for target material, improve the mechanical property of target material, enhance its degradation property simultaneously, it further improves that polyhydroxyalkanoate film is airtight, defect of not moisture-inhibiting, optimizes its properties as preservative film.
Description
Technical field
The invention belongs to fresh-keeping technical field of membrane, especially a kind of moisture-inhibiting degradation preservative film and preparation method thereof.
Background technique
Polyhydroxyalkanoate is a kind of polyester intracellular, has physicochemical characteristic and synthetic plastic similar to synthetic plastic
Not available biodegradability, biocompatibility, optical activity, gas phase are every many excellent in performance such as property.Poly- hydroxyl rouge
Fat acid esters has in terms of biodegradable packaging material, tissue engineering material, slow-release material, electricity material and medical material
Wide application prospect.
However, also depositing water vapour permeability is poor, and production cost is high, and mechanical property is weak etc. in as preservative film application process
Disadvantage.
Summary of the invention
In view of the above-mentioned problems, the present invention is intended to provide a kind of moisture-inhibiting degradation preservative film and preparation method thereof.
The invention is realized by the following technical scheme:
A kind of moisture-inhibiting degradation preservative film, is made of raw material from the following weight:
Modified starch 50-60, modified aluminosilicate zeolite 10-15, polyhydroxyalkanoate 80-100, antioxidant 2-5, acetyl lemon
Triethylenetetraminehexaacetic acid ester 4-5, zinc stearate 2-3.
Further, preparation method includes the following steps:
(1) cornstarch, tapioca, Faba bean starch are modified processing, obtain modified starch；
(2) aluminosilicate zeolite is put into the hydrochloric acid solution that mass fraction is 10-12% and impregnates 4-5h, then take out carry out ball milling
20-30min then puts it into the sodium hydroxide solution that mass fraction is 10-12% again, impregnates 3-4h, and be aided with ultrasonic place
Reason, then takes out, and deionized water is rinsed 2-3 times, is dried at 120-150 DEG C, obtains modified aluminosilicate zeolite；
(3) after polyhydroxyalkanoate being dried 5-8h at 70-76 DEG C, with modified starch, step (2) institute obtained by step (1)
Aluminosilicate zeolite must be modified to be put into togerther in high-speed mixer, 20-30min is mixed at 800-1500rpm, antioxygen is then added
Agent, acetyl triethyl citrate, zinc stearate after continueing to mix 30-40min, gains are added in extruder and are squeezed out, warp
Rolling out film stretches film forming.
Further, step (1) described modified starch the preparation method comprises the following steps: by cornstarch, tapioca, Faba bean starch
It is uniformly mixed according to the ratio of 10:4-6:2-3, distilled water dilution is then added, paste is stirred at 40-43 DEG C, is then existed
Under 83-87 DEG C of heating water bath, 200-250rpm stirring condition, continues to stir 30-40min, vinyl acetate, castor-oil plant is then added
Oil, ethyl alcohol, and it is cooled to 50-60 DEG C, continue after being stirred to react 40-50min, it is cooling, it is subsequently placed in microwave device, at microwave
10-12s is managed, is then concentrated, dries, and crush, modified starch is made.
Further, step (2) the ultrasonic treatment condition is 150-180Hz.
Further, step (3) antioxidant is phosphite ester antioxidant.
Further, the microwave treatment conditions are 1500-1600W.
Beneficial effects of the present invention: preservative film tensile strength with higher prepared by the present invention, mechanical property is preferable, together
When its degradation property, water vapour permeability it is excellent.Cornstarch, tapioca, Faba bean starch are mixed with reasonable proportion, made
The mechanical property of target material, degradation property are adjusted to optimum state, reduce the usage amount of polyhydroxyalkanoate, reduce target material
The production cost of material；Cornstarch, tapioca, Faba bean starch are modified using vinyl acetate, improve the parent of starch
It is aqueous, its viscosity and filming performance are improved, to enhance the tensile resistance of target material；Aluminosilicate zeolite is changed
Property, its porosity and specific surface area are substantially increased, provides impetus for target material, improves the mechanical property of target material
Can, while enhancing its degradation property, further improves that polyhydroxyalkanoate film is airtight, defect of not moisture-inhibiting, it is excellent
Change its properties as preservative film.
Specific embodiment
Illustrate the present invention with specific embodiment below, but is not limitation of the present invention.
Embodiment 1
A kind of moisture-inhibiting degradation preservative film, is made of raw material from the following weight:
Modified starch 50, modified aluminosilicate zeolite 10, polyhydroxyalkanoate 80, antioxidant 2, acetyl triethyl citrate 4, firmly
Resin acid zinc 2.
Further, preparation method includes the following steps:
(1) cornstarch, tapioca, Faba bean starch are modified processing, obtain modified starch；
(2) aluminosilicate zeolite is put into the hydrochloric acid solution that mass fraction is 10% and impregnates 4h, then taken out and carry out ball milling 20min,
Then it puts it into again in the sodium hydroxide solution that mass fraction is 10%, impregnates 3h, and be aided with ultrasonic treatment, then take out, go
Ionized water rinses 2 times, dries at 120 DEG C, obtains modified aluminosilicate zeolite；
(3) polyhydroxyalkanoate after dry 5h, is modified at 70 DEG C with obtained by modified starch obtained by step (1), step (2)
Aluminosilicate zeolite is put into togerther in high-speed mixer, mixes 20min at 800 rpm, and antioxidant, acetyl tributyl citrate is then added
Triethyl, zinc stearate after continueing to mix 30min, gains are added in extruder and are squeezed out, and through rolling out film, are drawn into
Film.
Further, step (1) described modified starch the preparation method comprises the following steps: by cornstarch, tapioca, Faba bean starch
It is uniformly mixed according to the ratio of 10:4:2, distilled water dilution is then added, paste is stirred at 40 DEG C, then in 83 DEG C of water-baths
Under heating, 200rpm stirring condition, continues to stir 30min, vinyl acetate, castor oil, ethyl alcohol is then added, and be cooled to 50
DEG C, continue after being stirred to react 40min, it is cooling, it is subsequently placed in microwave device, microwave treatment 10s, is then concentrated, dries, and powder
It is broken, modified starch is made.
Further, step (2) the ultrasonic treatment condition is 150Hz.
Further, step (3) antioxidant is phosphite ester antioxidant.
Further, the microwave treatment conditions are 1500W.
Embodiment 2
A kind of moisture-inhibiting degradation preservative film, is made of raw material from the following weight:
Modified starch 55, modified aluminosilicate zeolite 12, polyhydroxyalkanoate 90, antioxidant 4, acetyl triethyl citrate 5, firmly
Resin acid zinc 2.
Further, preparation method includes the following steps:
(1) cornstarch, tapioca, Faba bean starch are modified processing, obtain modified starch；
(2) aluminosilicate zeolite is put into the hydrochloric acid solution that mass fraction is 11% and impregnates 5h, then taken out and carry out ball milling 25min,
Then it puts it into again in the sodium hydroxide solution that mass fraction is 11%, impregnates 4h, and be aided with ultrasonic treatment, then take out, go
Ionized water rinses 3 times, dries at 140 DEG C, obtains modified aluminosilicate zeolite；
(3) polyhydroxyalkanoate after dry 6h, is modified at 72 DEG C with obtained by modified starch obtained by step (1), step (2)
Aluminosilicate zeolite is put into togerther in high-speed mixer, and 25min is mixed at 1000rpm, and antioxidant, acetyl tributyl citrate is then added
Triethyl, zinc stearate after continueing to mix 35min, gains are added in extruder and are squeezed out, and through rolling out film, are drawn into
Film.
Further, step (1) described modified starch the preparation method comprises the following steps: by cornstarch, tapioca, Faba bean starch
It is uniformly mixed according to the ratio of 10:5:3, distilled water dilution is then added, paste is stirred at 42 DEG C, then in 85 DEG C of water-baths
Under heating, 230rpm stirring condition, continues to stir 35min, vinyl acetate, castor oil, ethyl alcohol is then added, and be cooled to 55
DEG C, continue after being stirred to react 45min, it is cooling, it is subsequently placed in microwave device, microwave treatment 11s, is then concentrated, dries, and powder
It is broken, modified starch is made.
Further, step (2) the ultrasonic treatment condition is 170Hz.
Further, step (3) antioxidant is phosphite ester antioxidant.
Further, the microwave treatment conditions are 1550W.
Embodiment 3
A kind of moisture-inhibiting degradation preservative film, is made of raw material from the following weight:
Modified starch 60, modified aluminosilicate zeolite 15, polyhydroxyalkanoate 100, antioxidant 5, acetyl triethyl citrate 5,
Zinc stearate 3.
Further, preparation method includes the following steps:
(1) cornstarch, tapioca, Faba bean starch are modified processing, obtain modified starch；
(2) aluminosilicate zeolite is put into the hydrochloric acid solution that mass fraction is 12% and impregnates 5h, then taken out and carry out ball milling 30min,
Then it puts it into again in the sodium hydroxide solution that mass fraction is 12%, impregnates 4h, and be aided with ultrasonic treatment, then take out, go
Ionized water rinses 3 times, dries at 150 DEG C, obtains modified aluminosilicate zeolite；
(3) polyhydroxyalkanoate after dry 8h, is modified at 76 DEG C with obtained by modified starch obtained by step (1), step (2)
Aluminosilicate zeolite is put into togerther in high-speed mixer, mixes 30min at 1500 rpm, and antioxidant, acetyl tributyl citrate is then added
Triethyl, zinc stearate after continueing to mix 40min, gains are added in extruder and are squeezed out, and through rolling out film, are drawn into
Film.
Further, step (1) described modified starch the preparation method comprises the following steps: by cornstarch, tapioca, Faba bean starch
It is uniformly mixed according to the ratio of 10:6:3, distilled water dilution is then added, paste is stirred at 43 DEG C, then in 87 DEG C of water-baths
Under heating, 250rpm stirring condition, continues to stir 40min, vinyl acetate, castor oil, ethyl alcohol is then added, and be cooled to 60
DEG C, continue after being stirred to react 50min, it is cooling, it is subsequently placed in microwave device, microwave treatment 12s, is then concentrated, dries, and powder
It is broken, modified starch is made.
Further, step (2) the ultrasonic treatment condition is 180Hz.
Further, step (3) antioxidant is phosphite ester antioxidant.
Further, the microwave treatment conditions are 1600W.
Comparative example 1
Starch is replaced with the pure cornstarch of equal quality, method in addition to this compared to embodiment 2 by this comparative example
Step is all the same.
Comparative example 2
Starch is replaced with the pure tapioca of equal quality, method in addition to this compared to embodiment 2 by this comparative example
Step is all the same.
Comparative example 3
Starch is replaced with the pure Faba bean starch of equal quality, method in addition to this compared to embodiment 2 by this comparative example
Step is all the same.
Comparative example 4
The modifying processing step of starch is omitted compared to embodiment 2 in this comparative example, and method and step in addition to this is homogeneous
Together.
Comparative example 5
The modifying processing step of aluminosilicate zeolite is omitted compared to embodiment 2 in this comparative example, method step in addition to this
It is rapid all the same.
Performance test:
The tensile strength of preservative film obtained by each group embodiment and comparative example is detected；
Microbial degradation test is carried out to preservative film obtained by each embodiment and comparative example, after first carrying out sterilizing weighing, inoculation
The bacillus of equivalent in 30 DEG C of constant temperature incubation 48h, then is weighed, to specific mass reduced rate；
Rate of perviousness is measured referring to GB/T 16928-1997 " packaging material test method ".
Test result is as shown in table 1:
Table 1
As can be seen from Table 1, preservative film prepared by the present invention tensile strength with higher, mechanical property is preferable, while it is dropped
It is excellent to solve performance, water vapour permeability.
Claims (6)
- The preservative film 1. a kind of moisture-inhibiting is degraded, which is characterized in that be made of raw material from the following weight:Modified starch 50-60, modified aluminosilicate zeolite 10-15, polyhydroxyalkanoate 80-100, antioxidant 2-5, acetyl lemon Triethylenetetraminehexaacetic acid ester 4-5, zinc stearate 2-3.
- The preservative film 2. a kind of moisture-inhibiting according to claim 1 is degraded, which is characterized in that preparation method includes following step It is rapid:(1) cornstarch, tapioca, Faba bean starch are modified processing, obtain modified starch；(2) aluminosilicate zeolite is put into the hydrochloric acid solution that mass fraction is 10-12% and impregnates 4-5h, then take out carry out ball milling 20-30min then puts it into the sodium hydroxide solution that mass fraction is 10-12% again, impregnates 3-4h, and be aided with ultrasonic place Reason, then takes out, and deionized water is rinsed 2-3 times, is dried at 120-150 DEG C, obtains modified aluminosilicate zeolite；(3) after polyhydroxyalkanoate being dried 5-8h at 70-76 DEG C, with modified starch, step (2) institute obtained by step (1) Aluminosilicate zeolite must be modified to be put into togerther in high-speed mixer, 20-30min is mixed at 800-1500rpm, antioxygen is then added Agent, acetyl triethyl citrate, zinc stearate after continueing to mix 30-40min, gains are added in extruder and are squeezed out, warp Rolling out film stretches film forming.
- The preservative film 3. a kind of moisture-inhibiting according to claim 2 is degraded, which is characterized in that step (1) described modified starch The preparation method comprises the following steps: cornstarch, tapioca, Faba bean starch are uniformly mixed according to the ratio of 10:4-6:2-3, then it is added Distilled water dilution, stirs into paste at 40-43 DEG C, then under 83-87 DEG C of heating water bath, 200-250rpm stirring condition, Continue to stir 30-40min, vinyl acetate, castor oil, ethyl alcohol is then added, and be cooled to 50-60 DEG C, continues to be stirred to react 40- It is cooling after 50min, it is subsequently placed in microwave device, microwave treatment 10-12s, is then concentrated, dries, and crush, be made and be modified Starch.
- The preservative film 4. a kind of moisture-inhibiting according to claim 2 is degraded, which is characterized in that step (2) the ultrasonic treatment item Part is 150-180Hz.
- The preservative film 5. a kind of moisture-inhibiting according to claim 2 is degraded, which is characterized in that step (3) antioxidant is Asia Phosphoric acid ester antioxidant.
- The preservative film 6. a kind of moisture-inhibiting according to claim 3 is degraded, which is characterized in that the microwave treatment conditions are 1500-1600W。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811213911.7A CN109553940A (en) | 2018-10-18 | 2018-10-18 | A kind of moisture-inhibiting degradation preservative film and preparation method thereof |
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| CN201811213911.7A CN109553940A (en) | 2018-10-18 | 2018-10-18 | A kind of moisture-inhibiting degradation preservative film and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112048942A (en) * | 2020-09-07 | 2020-12-08 | 安徽天翔高新特种包装材料集团有限公司 | Antibacterial cigarette tipping paper and printing process thereof |
| CN112574501A (en) * | 2020-10-26 | 2021-03-30 | 中广核俊尔（上海）新材料有限公司 | Thermal-aging-resistant low-odor polypropylene composite material and preparation method thereof |
-
2018
- 2018-10-18 CN CN201811213911.7A patent/CN109553940A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112048942A (en) * | 2020-09-07 | 2020-12-08 | 安徽天翔高新特种包装材料集团有限公司 | Antibacterial cigarette tipping paper and printing process thereof |
| CN112574501A (en) * | 2020-10-26 | 2021-03-30 | 中广核俊尔（上海）新材料有限公司 | Thermal-aging-resistant low-odor polypropylene composite material and preparation method thereof |
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Application publication date: 20190402 |
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