CN109294186A - A kind of antibacterial food box - Google Patents
A kind of antibacterial food box Download PDFInfo
- Publication number
- CN109294186A CN109294186A CN201811051052.6A CN201811051052A CN109294186A CN 109294186 A CN109294186 A CN 109294186A CN 201811051052 A CN201811051052 A CN 201811051052A CN 109294186 A CN109294186 A CN 109294186A
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- food box
- temperature
- injection molding
- extruder
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/04—Polyesters derived from hydroxycarboxylic acids, e.g. lactones
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/46—Applications of disintegrable, dissolvable or edible materials
- B65D65/466—Bio- or photodegradable packaging materials
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Biological Depolymerization Polymers (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of antibacterial food boxes, the food box can be used as cutlery box, polylactic acid, graphene, chitosan, polyvinyl alcohol, starch and calcium carbonate are weighed respectively, and it is added sequentially in extruder, after control extruder temperature is 200~220 DEG C, 30 minutes, fusant is by forming extruded stock after the extrusion of extruder, traction cooling, cutting, extruded stock is put into injection molding in injection molding machine, and food box is made.Food box prepared by the present invention can not only be biodegradable, and has high mechanical strength and tensile resistance, also has effects that antibacterial bacteriostatic, safety and environmental protection.
Description
Technical field
The invention belongs to food box technical field more particularly to a kind of antibacterial food boxes.
Background technique
Food box is directly contacted with packaging food, because it will have an impact the safety of food and then influence human body peace
Paid attention to extensively entirely.Food box brings very big convenience in life, can be divided into plastics food according to material classification
Product bag and paper foodstuff bag.Although paper foodstuff bag has degradable characteristic, paper foodstuff bag meets the fluids such as water and oil
It easily deforms and even degrades afterwards, and then pollute the food contained.Existing food-packaging bag generally uses biaxial stretching polypropylene
Alkene or poly-lactic acid material, though can satisfy the requirement of mechanical property, its antibiotic property is poor, the preservation to certain Special foods
Property it is poor, and can't biodegrade, so develop it is a kind of not only can guarantee mechanical property, but also can realize antibacterial, moreover it is possible to raw
The packing box of object degradation has very important significance.
Summary of the invention
In view of the defect of the above prior art, the object of the present invention is to provide one kind to have excellent mechanical performances and antibacterial
Property, and can also biodegradable food box, avoid pollution environment.
The purpose of the present invention will be realized by following technical method: a kind of antibacterial food box, the food box can be used as meal
Box weighs polylactic acid, graphene, chitosan, polyvinyl alcohol, starch and calcium carbonate respectively, and is added sequentially in extruder, control
After extruder temperature processed is 200~220 DEG C, 30 minutes, fusant after the extrusion of extruder, traction cooling, cutting by forming
Extruded stock, extruded stock are put into injection molding in injection molding machine, food box are made.
Preferably, a kind of antibacterial food box, in terms of mass fraction, 40~50 parts of polylactic acid, graphene 8~12
Part, 12~16 parts of chitosan, 10~15 parts of polyvinyl alcohol, 10~15 parts of starch, 5~8 parts of calcium carbonate.
Preferably, a kind of antibacterial food box, in terms of mass fraction, 45 parts of polylactic acid, 10 parts of graphene, chitosan
14 parts, 14 parts of polyvinyl alcohol, 11 parts of starch, 6 parts of calcium carbonate.
Preferably, a kind of antibacterial food box, the polylactic acid are added to heating stirring in mixing machine, mixing speed
It is 1200~1500 revs/min, heating temperature is 70~80 DEG C, and after stirring 5~10min, it is poly- to sequentially add starch, graphene, shell
Sugar, calcium carbonate and polyvinyl alcohol, it is to be mixed uniformly after, form mixture, mixture is then added in double screw extruder.
Preferably, a kind of antibacterial food box, the extruder bringing-up section are divided into 4 areas, and first area's temperature is 205
DEG C, second area's temperature is 210 DEG C, and third area temperature is 215 DEG C, and the 4th area's temperature is 220 DEG C.
Preferably, a kind of antibacterial food box, the injection molding machine bringing-up section are divided into 5 sections, and each bringing-up section adds
The hot time is 5 minutes, and the temperature of 5 bringing-up sections is successively 220 DEG C, 225 DEG C, 230 DEG C, 235 DEG C, 240 DEG C.
Preferably, a kind of antibacterial food box, injection molding machine injection molding section use the pressure of 50~60MPa, 40~
The middle speed injection of 50m/s.
Compared with prior art, the present invention has following the utility model has the advantages that food box prepared by the present invention can be used as cutlery box,
Can not only be biodegradable, and there is high mechanical strength and tensile resistance, also have effects that antibacterial bacteriostatic, safety and environmental protection.
Specific embodiment
For a better understanding of the invention, further specific elaboration is made to the present invention below by following embodiment, but not
It can be regarded as limitation of the invention, it is some nonessential according to made by foregoing invention content for those skilled in the art
It improves and adjusts, be also considered as and be within the scope of the present invention.
Embodiment 1
A kind of antibacterial food box, in terms of mass fraction, firstly, 45 parts of polylactic acid are weighed respectively, and 10 parts of graphene, chitosan
14 parts, 14 parts of polyvinyl alcohol, 11 parts of starch, 6 parts of calcium carbonate spare.Then, polylactic acid is added to heating stirring in mixing machine,
Mixing speed is 1500rad/min, and heating temperature is 70 DEG C, after stirring 5min, sequentially add load weighted starch, graphene,
Chitosan, calcium carbonate and polyvinyl alcohol, it is to be mixed uniformly after, formed mixture.Secondly, add mixture into extruder,
Controlling extruder temperature is 200~220 DEG C, wherein extruder bringing-up section is divided into 4 areas, and first area's temperature is 205 DEG C, and second
Area's temperature is 210 DEG C, and third area temperature is 215 DEG C, and after the 4th area's temperature is 220 DEG C, 30 minutes, fusant passes through extruder
It squeezes out, traction is cooling, forms extruded stock after cutting.Finally, extruded stock is put into injection molding in injection molding machine, food box is made,
Injection molding machine bringing-up section is divided into 5 sections, and each bringing-up section heats 5 minutes, and the temperature of 5 bringing-up sections is successively 220 DEG C, and 225 DEG C,
230 DEG C, 235 DEG C, 240 DEG C, injection molding machine is molded the pressure that section uses 54MPa, the middle speed injection of 49m/s.
Embodiment 2
A kind of antibacterial food box, in terms of mass fraction, firstly, 40 parts of polylactic acid are weighed respectively, and 12 parts of graphene, chitosan
16 parts, 12 parts of polyvinyl alcohol, 12 parts of starch, 8 parts of calcium carbonate spare.Then, polylactic acid is added to heating stirring in mixing machine,
Mixing speed is 1360rad/min, and heating temperature is 75 DEG C, after stirring 8min, sequentially add load weighted starch, graphene,
Chitosan, calcium carbonate and polyvinyl alcohol, it is to be mixed uniformly after, formed mixture.Secondly, add mixture into extruder,
Controlling extruder temperature is 200~220 DEG C, wherein extruder bringing-up section is divided into 4 areas, and first area's temperature is 205 DEG C, and second
Area's temperature is 210 DEG C, and third area temperature is 215 DEG C, and after the 4th area's temperature is 220 DEG C, 30 minutes, fusant passes through extruder
It squeezes out, traction is cooling, forms extruded stock after cutting.Finally, extruded stock is put into injection molding machine, food box is made in injection molding,
Injection molding machine is divided into 5 bringing-up sections, and each bringing-up section heats 5 minutes, and the temperature of 5 bringing-up sections is successively 220 DEG C, and 225 DEG C, 230
DEG C, 235 DEG C, 240 DEG C, injection molding machine is molded the pressure that section uses 55MPa, the middle speed injection of 42m/s.
Embodiment 3
A kind of antibacterial food box, in terms of mass fraction, firstly, 50 parts of polylactic acid are weighed respectively, and 8 parts of graphene, chitosan
12 parts, 10 parts of polyvinyl alcohol, 14 parts of starch, 6 parts of calcium carbonate spare.Then, polylactic acid is added to heating stirring in mixing machine,
Mixing speed is 1200rad/min, and heating temperature is 80 DEG C, after stirring 10min, sequentially add load weighted starch, graphene,
Chitosan, calcium carbonate and polyvinyl alcohol, it is to be mixed uniformly after, formed mixture.Secondly, add mixture into extruder,
Controlling extruder temperature is 200~220 DEG C, wherein extruder bringing-up section is divided into 4 areas, and first area's temperature is 205 DEG C, and second
Area's temperature is 210 DEG C, and third area temperature is 215 DEG C, and the 4th area's temperature is 220 DEG C, after the 5th area's temperature is 220 DEG C, 30 minutes,
Fusant is by forming extruded stock after the extrusion of extruder, traction cooling, cutting.Finally, extruded stock is put into injection molding machine, note
It is moulded into type, food box is made, injection molding machine bringing-up section is divided into 5 bringing-up sections, and each bringing-up section heats 5 minutes, the temperature of 5 bringing-up sections
Degree is successively 220 DEG C, and 225 DEG C, 230 DEG C, 235 DEG C, 240 DEG C, injection molding machine is molded the pressure that section uses 58MPa, the middling speed of 46m/s
Degree injection.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of antibacterial food box, it is characterised in that: weigh respectively polylactic acid, graphene, chitosan, polyvinyl alcohol, starch and
Calcium carbonate, and be added sequentially in extruder, after control extruder temperature is 200~220 DEG C, 30 minutes, fusant is by squeezing
Extruded stock is formed after the extrusion of machine, traction cooling, cutting out, extruded stock is put into injection molding in injection molding machine, food box is made.
2. a kind of antibacterial food box according to claim 1, it is characterised in that: in terms of mass fraction, polylactic acid 40~50
Part, 8~12 parts of graphene, 12~16 parts of chitosan, 10~15 parts of polyvinyl alcohol, 10~15 parts of starch, 5~8 parts of calcium carbonate.
3. a kind of antibacterial food box according to claim 1, it is characterised in that: in terms of mass fraction, 45 parts of polylactic acid, stone
10 parts of black alkene, 14 parts of chitosan, 14 parts of polyvinyl alcohol, 11 parts of starch, 6 parts of calcium carbonate.
4. a kind of antibacterial food box according to claim 1, it is characterised in that: the polylactic acid, which is added in mixing machine, to be added
Thermal agitation, mixing speed are 1200~1500 revs/min, and heating temperature is 70~80 DEG C, after stirring 5~10min, sequentially add shallow lake
Powder, graphene, chitosan, calcium carbonate and polyvinyl alcohol, it is to be mixed uniformly after, form mixture, mixture is then added to double spiral shells
In bar extruder.
5. a kind of antibacterial food box according to claim 1, it is characterised in that: the extruder bringing-up section is divided into 4 areas,
First area's temperature is 205 DEG C, and second area's temperature is 210 DEG C, and third area temperature is 215 DEG C, and the 4th area's temperature is 220 DEG C.
6. a kind of antibacterial food box according to claim 1, it is characterised in that: the injection molding machine bringing-up section is divided into 5 sections,
The heating time of each bringing-up section is 5 minutes, and the temperature of 5 bringing-up sections is successively 220 DEG C, 225 DEG C, 230 DEG C, and 235 DEG C, 240
℃。
7. a kind of antibacterial food box according to claim 1, it is characterised in that: injection molding machine injection molding section using 50~
The pressure of 60MPa, the middle speed injection of 40~50m/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811051052.6A CN109294186A (en) | 2018-09-10 | 2018-09-10 | A kind of antibacterial food box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811051052.6A CN109294186A (en) | 2018-09-10 | 2018-09-10 | A kind of antibacterial food box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109294186A true CN109294186A (en) | 2019-02-01 |
Family
ID=65166525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811051052.6A Pending CN109294186A (en) | 2018-09-10 | 2018-09-10 | A kind of antibacterial food box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109294186A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110510246A (en) * | 2019-09-02 | 2019-11-29 | 山西纽维尔环保科技有限公司 | A kind of starch based milk powder bucket |
| CN112810036A (en) * | 2020-11-12 | 2021-05-18 | 苏州德文塑业有限公司 | Manufacturing and processing technology of antibacterial plastic airplane lunch box |
| WO2021095021A1 (en) * | 2019-11-15 | 2021-05-20 | Tor Corporation Ltd | Biodegradable polymer nanocomposite and method for production thereof |
| WO2022191695A1 (en) * | 2021-03-11 | 2022-09-15 | Grijalva Varillas Sergio Fernando | Packaging for fruit and vegetables with antipathogen barrier and production method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| WO2022191695A1 (en) * | 2021-03-11 | 2022-09-15 | Grijalva Varillas Sergio Fernando | Packaging for fruit and vegetables with antipathogen barrier and production method |
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Application publication date: 20190201 |