CN106800695A - A kind of degradable fresh food packaging membrane material and preparation method thereof - Google Patents
A kind of degradable fresh food packaging membrane material and preparation method thereof Download PDFInfo
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- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
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- C08J2499/00—Characterised by the use of natural macromolecular compounds or of derivatives thereof not provided for in groups C08J2401/00 - C08J2407/00 or C08J2489/00 - C08J2497/00
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
Abstract
The invention discloses a kind of degradable fresh food packaging membrane material and preparation method thereof, it is made from the following raw materials in parts by weight：10 15 parts of polyethylene, 49 parts of acetate fiber, 10 15 parts of PLA, 10 15 parts of jerusalem artichoke powder, 36 parts of diatomite, 24 parts of leukotrienes, 25 parts of propylene glycol fatty acid, 13 parts of sodium alkyl benzene sulfonate, 48 parts of sodium citrate, 36 parts of aluminum sulfate, 14 parts of casein sodium, 25 parts of barium sulfate, 14 parts of antioxidant, 25 parts of stabilizer, 35 parts of toughener.The degradable fresh food packaging membrane material being prepared from, its safety and environmental protection is pollution-free degradable.
Description
Technical field
The present invention relates to Material Field, more particularly to a kind of degradable fresh food packaging membrane material and its preparation side
Method.
Background technology
Preservative film, is a kind of kitchen articles, is mainly used in kitchen and cooks, contains food, or can be with letter for making some
The material of single cleaning.Preservative film receives the favor of people with it the characteristics of convenient, economical, attractive in appearance.Current food fresh keeping membrane is pressed
It is divided into several classes such as polyethylene, also referred to as PE preservative films, also referred to as polyvinyl chloride, PVC fresh-preserving film according to material.Wherein, PE is protected
Fresh film is mainly in the sale of all kinds of supermarkets, and PVC fresh-preserving film then mainly cooks food bag in fresh, the food in bulk area of supermarket
Dress, the group customer such as all kinds of hotels buying in addition uses more.In all kinds of preservative films, PVC is shared due to cheap
The market share is also maximum, and about six to seventy percent.Preferable preservative film should comply with following condition：1. easily it is drawn out and cuts off；2.
Easily with glass ceramics and surface stainless steel tableware（But non-preservative film is in itself）Bonding；3., close to transparent not wrinkle, thickness is not
Situations such as, occurs；4. the pressure typically pullled can be supported.5. pair human body, food and environment are safe from harm.So developing now
Go out a safety and environmental protection, pollution-free degradable food fresh keeping membrane material to be particularly important, while being also society and industry
Demand.
The content of the invention
In order to solve the above technical problems, the present invention provides a kind of degradable fresh food packaging membrane material and its preparation side
Method, is combined by using specified raw material, coordinates corresponding production technology, the degradable fresh food packaging membrane material for obtaining
Material, its safety and environmental protection is pollution-free degradable, the requirement of industry is disclosure satisfy that, with preferable application prospect.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of degradable fresh food packaging membrane material, is made from the following raw materials in parts by weight：Polyethylene 10-15 parts, acetic acid
Fiber 4-9 parts, PLA 10-15 parts, 10-15 parts of jerusalem artichoke powder, diatomite 3-6 parts, leukotrienes 2-4 parts, propylene glycol fatty acid 2-5
Part, sodium alkyl benzene sulfonate 1-3 part, sodium citrate 4-8 parts, aluminum sulfate 3-6 parts, casein sodium 1-4 parts, barium sulfate 2-5 parts, resist
Oxidant 1-4 parts, stabilizer 2-5 parts, toughener 3-5 parts.
Preferably, the antioxidant is selected from anhydrous sodium sulfite, sodium pyrosulfite, Butylated Hydroxytoluene, the 2- tert-butyl group -4- first
One or more in epoxide phenol.
Preferably, the stabilizer is selected from lead salicylate, Dythal, 2- ethyl acetic acids lead, stearic acid
One or more in calcium.
Preferably, the toughener is selected from tributyl 2-acetylcitrate, haloflex, methyl methacrylate-fourth two
One or more during alkene-styrene copolymer, propylene are fine.
Described degradable fresh food packs the preparation method of membrane material, comprises the following steps：
（1）Each raw material is weighed according to weight portion；
（2）Polyethylene, acetate fiber, PLA, jerusalem artichoke powder, diatomite, leukotrienes are added into 10% isometric ethanol solution
In, mixing, 200-300 revs/min of mixing speed are stirred, mixing time is 50 minutes；
（3）Propylene glycol fatty acid, sodium alkyl benzene sulfonate, sodium citrate, antioxidant are added into step（2）Mixture in, surpass
Sound disperses 30 minutes, and supersonic frequency is 220-250KW;
（4）By step（3）In mixture cross membrane choosing, go the removal of impurity；
（5）By step（4）Sieving injection high-temperature vacuum kneading machine hybrid reaction, while sequentially adding aluminum sulfate, casein
Sour sodium, barium sulfate, stabilizer, toughener, reaction temperature are 500-550 DEG C, and the reaction time is 45 minutes；
（6）Stop heating after reaction completely, inert gas is filled with toward high-temperature vacuum kneading machine, Temperature fall is cooled to 280-
300℃；
（7）By step（6）Cooling thing injection double screw extruder in, extrusion, pressing mold it is moulding, cool down to obtain finished product, screw speed
It it is 1000-1300 revs/min, extruder temperature is 220-260 DEG C.
Preferably, step（4）In mixture to cross membrane aperture used by membrane choosing be 100um.
Preferably, the step（6）In inert gas be argon gas.
Compared with prior art, its advantage is the present invention：
（1）Degradable fresh food of the invention packs membrane material with polyethylene, acetate fiber, PLA, jerusalem artichoke powder, diatom
Soil, leukotrienes are main component, by adding propylene glycol fatty acid, sodium alkyl benzene sulfonate, sodium citrate, aluminum sulfate, casein
Sour sodium, barium sulfate, stabilizer, toughener, antioxidant, be aided with stir and evenly mix, ultrasonic disperse, cross film removal of impurities, high-temperature mixing, from
So cool down, extrude the technique such as moulding so that the degradable fresh food packaging membrane material being prepared from, its safety and environmental protection, nothing
Pollution is degradable, the requirement of industry is disclosure satisfy that, with preferable application prospect.
（2）Degradable fresh food packaging film material feedstock of the invention is cheap, process is simple, is suitable to large-scale industry
Change and use, it is practical.
Specific embodiment
The technical scheme invented is described in detail with reference to specific embodiment.
Embodiment 1
（1）According to weight portion weigh 10 parts of polyethylene, 4 parts of acetate fiber, 10 parts of PLA, 10 parts of jerusalem artichoke powder, 3 parts of diatomite,
2 parts of leukotrienes, 2 parts of propylene glycol fatty acid, 1 part of sodium alkyl benzene sulfonate, 4 parts of sodium citrate, 3 parts of aluminum sulfate, casein sodium 1
Part, 2 parts of barium sulfate, 1 part of anhydrous sodium sulfite, 2 parts of lead salicylate, 3 parts of tributyl 2-acetylcitrate；
（2）Polyethylene, acetate fiber, PLA, jerusalem artichoke powder, diatomite, leukotrienes are added into 10% isometric ethanol solution
In, mixing, 200 revs/min of mixing speed are stirred, mixing time is 50 minutes；
（3）Propylene glycol fatty acid, sodium alkyl benzene sulfonate, sodium citrate, anhydrous sodium sulfite are added into step（2）Mixture
In, ultrasonic disperse 30 minutes, supersonic frequency is 220KW;
（4）By step（3）In mixture cross membrane choosing, go the removal of impurity, membrane aperture is 100um；
（5）By step（4）Sieving injection high-temperature vacuum kneading machine hybrid reaction, while sequentially adding aluminum sulfate, casein
Sour sodium, barium sulfate, lead salicylate, tributyl 2-acetylcitrate, reaction temperature are 500 DEG C, and the reaction time is 45 minutes；
（6）Stop heating after reaction completely, argon gas is filled with toward high-temperature vacuum kneading machine, Temperature fall is cooled to 280 DEG C；
（7）By step（6）Cooling thing injection double screw extruder in, extrusion, pressing mold it is moulding, cool down to obtain finished product, screw speed
It it is 1000 revs/min, extruder temperature is 220 DEG C.
Obtained degradable fresh food packaging film testing of materials result is as shown in table 1.
Embodiment 2
（1）According to weight portion weigh 12 parts of polyethylene, 5 parts of acetate fiber, 11 parts of PLA, 12 parts of jerusalem artichoke powder, 4 parts of diatomite,
2 parts of leukotrienes, 3 parts of propylene glycol fatty acid, 2 parts of sodium alkyl benzene sulfonate, 5 parts of sodium citrate, 4 parts of aluminum sulfate, casein sodium 2
Part, 3 parts of barium sulfate, 2 parts of sodium pyrosulfite, 3 parts of Dythal, 4 parts of haloflex；
（2）Polyethylene, acetate fiber, PLA, jerusalem artichoke powder, diatomite, leukotrienes are added into 10% isometric ethanol solution
In, mixing, 220 revs/min of mixing speed are stirred, mixing time is 50 minutes；
（3）Propylene glycol fatty acid, sodium alkyl benzene sulfonate, sodium citrate, sodium pyrosulfite are added into step（2）Mixture in,
Ultrasonic disperse 30 minutes, supersonic frequency is 230KW;
（4）By step（3）In mixture cross membrane choosing, go the removal of impurity, membrane aperture is 100um；
（5）By step（4）Sieving injection high-temperature vacuum kneading machine hybrid reaction, while sequentially adding aluminum sulfate, casein
Sour sodium, barium sulfate, Dythal, haloflex, reaction temperature are 520 DEG C, and the reaction time is 45 minutes；
（6）Stop heating after reaction completely, argon gas is filled with toward high-temperature vacuum kneading machine, Temperature fall is cooled to 290 DEG C；
（7）By step（6）Cooling thing injection double screw extruder in, extrusion, pressing mold it is moulding, cool down to obtain finished product, screw speed
It it is 1100 revs/min, extruder temperature is 230 DEG C.
Obtained degradable fresh food packaging film testing of materials result is as shown in table 1.
Embodiment 3
（1）According to weight portion weigh 14 parts of polyethylene, 8 parts of acetate fiber, 13 parts of PLA, 14 parts of jerusalem artichoke powder, 5 parts of diatomite,
3 parts of leukotrienes, 4 parts of propylene glycol fatty acid, 2 parts of sodium alkyl benzene sulfonate, 7 parts of sodium citrate, 5 parts of aluminum sulfate, casein sodium 3
Part, 4 parts of barium sulfate, 3 parts of Butylated Hydroxytoluene, 4 parts of 2- ethyl acetic acids lead, base methyl acrylate-butadiene-styrene terpolymer
4 parts of thing；
（2）Polyethylene, acetate fiber, PLA, jerusalem artichoke powder, diatomite, leukotrienes are added into 10% isometric ethanol solution
In, mixing, 280 revs/min of mixing speed are stirred, mixing time is 50 minutes；
（3）Propylene glycol fatty acid, sodium alkyl benzene sulfonate, sodium citrate, Butylated Hydroxytoluene are added into step（2）Mixture in, surpass
Sound disperses 30 minutes, and supersonic frequency is 240KW;
（4）By step（3）In mixture cross membrane choosing, go the removal of impurity, membrane aperture is 100um；
（5）By step（4）Sieving injection high-temperature vacuum kneading machine hybrid reaction, while sequentially adding aluminum sulfate, casein
Sour sodium, barium sulfate, 2- ethyl acetic acids lead, base methyl acrylate-butadiene-styrene copolymer, reaction temperature is 540
DEG C, the reaction time is 45 minutes；
（6）Stop heating after reaction completely, argon gas is filled with toward high-temperature vacuum kneading machine, Temperature fall is cooled to 295 DEG C；
（7）By step（6）Cooling thing injection double screw extruder in, extrusion, pressing mold it is moulding, cool down to obtain finished product, screw speed
It it is 1200 revs/min, extruder temperature is 250 DEG C.
Obtained degradable fresh food packaging film testing of materials result is as shown in table 1.
Embodiment 4
（1）According to weight portion weigh 15 parts of polyethylene, 9 parts of acetate fiber, 15 parts of PLA, 15 parts of jerusalem artichoke powder, 6 parts of diatomite,
4 parts of leukotrienes, 5 parts of propylene glycol fatty acid, 3 parts of sodium alkyl benzene sulfonate, 8 parts of sodium citrate, 6 parts of aluminum sulfate, casein sodium 4
Part, 5 parts of barium sulfate, 4 parts of the 2- tert-butyl group -4- metoxyphenols, 5 parts of calcium stearate, fine 5 parts of propylene；
（2）Polyethylene, acetate fiber, PLA, jerusalem artichoke powder, diatomite, leukotrienes are added into 10% isometric ethanol solution
In, mixing, 300 revs/min of mixing speed are stirred, mixing time is 50 minutes；
（3）Propylene glycol fatty acid, sodium alkyl benzene sulfonate, sodium citrate, the 2- tert-butyl group -4- metoxyphenols are added into step（2）
Mixture in, ultrasonic disperse 30 minutes, supersonic frequency is 250KW;
（4）By step（3）In mixture cross membrane choosing, go the removal of impurity, membrane aperture is 100um；
（5）By step（4）Sieving injection high-temperature vacuum kneading machine hybrid reaction, while sequentially adding aluminum sulfate, casein
Sour sodium, barium sulfate, calcium stearate, propylene are fine, and reaction temperature is 550 DEG C, and the reaction time is 45 minutes；
（6）Stop heating after reaction completely, argon gas is filled with toward high-temperature vacuum kneading machine, Temperature fall is cooled to 300 DEG C；
（7）By step（6）Cooling thing injection double screw extruder in, extrusion, pressing mold it is moulding, cool down to obtain finished product, screw speed
It it is 1300 revs/min, extruder temperature is 260 DEG C.
Obtained degradable fresh food packaging film testing of materials result is as shown in table 1.
Comparative example 1
（1）According to weight portion weigh 10 parts of polyethylene, 4 parts of acetate fiber, 10 parts of PLA, 10 parts of jerusalem artichoke powder, 3 parts of diatomite,
2 parts of leukotrienes, 2 parts of propylene glycol fatty acid, 4 parts of sodium citrate, 3 parts of aluminum sulfate, 1 part of casein sodium, anhydrous sodium sulfite 1
Part, 2 parts of lead salicylate, 3 parts of tributyl 2-acetylcitrate；
（2）Polyethylene, acetate fiber, PLA, jerusalem artichoke powder, diatomite, leukotrienes are added into 10% isometric ethanol solution
In, mixing, 200 revs/min of mixing speed are stirred, mixing time is 50 minutes；
（3）Propylene glycol fatty acid, sodium citrate, anhydrous sodium sulfite are added into step（2）Mixture in, 30 points of ultrasonic disperse
Clock, supersonic frequency is 220KW;
（4）By step（3）In mixture cross membrane choosing, go the removal of impurity, membrane aperture is 100um；
（5）By step（4）Sieving injection high-temperature vacuum kneading machine hybrid reaction, while sequentially adding aluminum sulfate, casein
Sour sodium, lead salicylate, tributyl 2-acetylcitrate, reaction temperature are 500 DEG C, and the reaction time is 45 minutes；
（6）Stop heating after reaction completely, argon gas is filled with toward high-temperature vacuum kneading machine, Temperature fall is cooled to 280 DEG C；
（7）By step（6）Cooling thing injection double screw extruder in, extrusion, pressing mold it is moulding, cool down to obtain finished product, screw speed
It it is 1000 revs/min, extruder temperature is 220 DEG C.
Obtained degradable fresh food packaging film testing of materials result is as shown in table 1.
Comparative example 2
（1）According to weight portion weigh 15 parts of polyethylene, 9 parts of acetate fiber, 15 parts of PLA, 15 parts of jerusalem artichoke powder, 6 parts of diatomite,
4 parts of leukotrienes, 3 parts of sodium alkyl benzene sulfonate, 8 parts of sodium citrate, 6 parts of aluminum sulfate, 5 parts of barium sulfate, the 2- tert-butyl group -4- methoxybenzenes
4 parts of phenol, 5 parts of calcium stearate, fine 5 parts of propylene；
（2）Polyethylene, acetate fiber, PLA, jerusalem artichoke powder, diatomite, leukotrienes are added into 10% isometric ethanol solution
In, mixing, 300 revs/min of mixing speed are stirred, mixing time is 50 minutes；
（3）Sodium alkyl benzene sulfonate, sodium citrate, the 2- tert-butyl group -4- metoxyphenols are added into step（2）Mixture in, surpass
Sound disperses 30 minutes, and supersonic frequency is 250KW;
（4）By step（3）In mixture cross membrane choosing, go the removal of impurity, membrane aperture is 100um；
（5）By step（4）Sieving injection high-temperature vacuum kneading machine hybrid reaction, while sequentially add aluminum sulfate, barium sulfate,
Calcium stearate, propylene are fine, and reaction temperature is 550 DEG C, and the reaction time is 45 minutes；
（6）Stop heating after reaction completely, argon gas is filled with toward high-temperature vacuum kneading machine, Temperature fall is cooled to 300 DEG C；
（7）By step（6）Cooling thing injection double screw extruder in, extrusion, pressing mold it is moulding, cool down to obtain finished product, screw speed
It it is 1300 revs/min, extruder temperature is 260 DEG C.
Obtained degradable fresh food packaging film testing of materials result is as shown in table 1.
Fresh food packaging membrane material degradable obtained in embodiment 1-4 and comparative example 1-2 is stretched respectively
Intensity, elongation at break, this several performance tests of steam transit dose and 3 months degradation rate standards.
Table 1
Degradable fresh food packaging membrane material of the invention with polyethylene, acetate fiber, PLA, jerusalem artichoke powder, diatomite,
Leukotrienes is main component, by adding propylene glycol fatty acid, sodium alkyl benzene sulfonate, sodium citrate, aluminum sulfate, caseinic acid
Sodium, barium sulfate, stabilizer, toughener, antioxidant, are aided with and stir and evenly mix, ultrasonic disperse, cross film removal of impurities, high-temperature mixing, nature
Cool down, extrude the technique such as moulding so that the degradable fresh food packaging membrane material being prepared from, its safety and environmental protection, without dirt
Dye is degradable, the requirement of industry is disclosure satisfy that, with preferable application prospect.Degradable fresh food packaging film of the invention
Material feedstock is cheap, process is simple, is suitable to heavy industrialization utilization, practical.
Embodiments of the invention are the foregoing is only, the scope of the claims of the invention is not thereby limited, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright description is made, or directly or indirectly it is used in other related technology necks
Domain, is included within the scope of the present invention.
Claims (7)
1. a kind of degradable fresh food packs membrane material, it is characterised in that：It is made from the following raw materials in parts by weight:Polyethylene
10-15 parts, acetate fiber 4-9 parts, PLA 10-15 parts, 10-15 parts of jerusalem artichoke powder, diatomite 3-6 parts, leukotrienes 2-4 parts, third
Two polyol fatty acid 2-5 parts, sodium alkyl benzene sulfonate 1-3 parts, sodium citrate 4-8 parts, aluminum sulfate 3-6 parts, casein sodium 1-4 parts,
Barium sulfate 2-5 parts, antioxidant 1-4 parts, stabilizer 2-5 parts, toughener 3-5 parts.
2. degradable fresh food according to claim 1 packs membrane material, it is characterised in that：The antioxidant choosing
One or more from anhydrous sodium sulfite, sodium pyrosulfite, Butylated Hydroxytoluene, the 2- tert-butyl group -4- metoxyphenols.
3. degradable fresh food according to claim 1 packs membrane material, it is characterised in that：The stabilizer is selected from
One or more in lead salicylate, Dythal, 2- ethyl acetic acids lead, calcium stearate.
4. degradable fresh food according to claim 1 packs membrane material, it is characterised in that：The toughener is selected from
During tributyl 2-acetylcitrate, haloflex, methyl methacrylate-butadiene-styrene copolymer, propylene are fine
One or more.
5. the preparation method of membrane material is packed according to any described degradable fresh food of Claims 1 to 4, and its feature exists
In comprising the following steps：
（1）Each raw material is weighed according to weight portion；
（2）Polyethylene, acetate fiber, PLA, jerusalem artichoke powder, diatomite, leukotrienes are added into 10% isometric ethanol solution
In, mixing, 200-300 revs/min of mixing speed are stirred, mixing time is 50 minutes；
（3）Propylene glycol fatty acid, sodium alkyl benzene sulfonate, sodium citrate, antioxidant are added into step（2）Mixture in, surpass
Sound disperses 30 minutes, and supersonic frequency is 220-250KW;
（4）By step（3）In mixture cross membrane choosing, go the removal of impurity；
（5）By step（4）Sieving injection high-temperature vacuum kneading machine hybrid reaction, while sequentially adding aluminum sulfate, casein
Sour sodium, barium sulfate, stabilizer, toughener, reaction temperature are 500-550 DEG C, and the reaction time is 45 minutes；
（6）Stop heating after reaction completely, inert gas is filled with toward high-temperature vacuum kneading machine, Temperature fall is cooled to 280-
300℃；
（7）By step（6）Cooling thing injection double screw extruder in, extrusion, pressing mold it is moulding, cool down to obtain finished product, screw speed
It it is 1000-1300 revs/min, extruder temperature is 220-260 DEG C.
6. degradable fresh food according to claim 5 packs the preparation method of membrane material, it is characterised in that：Step
（4）In mixture to cross membrane aperture used by membrane choosing be 100um.
7. degradable fresh food according to claim 5 packs the preparation method of membrane material, it is characterised in that：It is described
Step（6）In inert gas be argon gas.
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| CN201611203215.9A CN106800695A (en) | 2016-12-23 | 2016-12-23 | A kind of degradable fresh food packaging membrane material and preparation method thereof |
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| CN104927318A (en) * | 2014-03-21 | 2015-09-23 | 天津优致科技有限公司 | Degradable plastic packaging bag |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104927318A (en) * | 2014-03-21 | 2015-09-23 | 天津优致科技有限公司 | Degradable plastic packaging bag |
Non-Patent Citations (2)
| Title |
|---|
| 刘西文编著: "《塑料注射成型技术实用教程》", 31 October 2013, 印刷工业出版社 * |
| 黎厚斌主编: "《包装应用化学》", 31 January 2014, 印刷工业出版社 * |
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