CN109081952A - A kind of biodegrade packaging bag - Google Patents
A kind of biodegrade packaging bag Download PDFInfo
- Publication number
- CN109081952A CN109081952A CN201810776885.2A CN201810776885A CN109081952A CN 109081952 A CN109081952 A CN 109081952A CN 201810776885 A CN201810776885 A CN 201810776885A CN 109081952 A CN109081952 A CN 109081952A
- Authority
- CN
- China
- Prior art keywords
- packaging bag
- initiator
- chitosan
- extruder
- parts
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Classifications
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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
-
- 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
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2301/02—Cellulose; Modified cellulose
-
- 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
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2405/00—Characterised by the use of polysaccharides or of their derivatives not provided for in groups C08J2401/00 or C08J2403/00
- C08J2405/08—Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
-
- 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
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
- C08K5/544—Silicon-containing compounds containing nitrogen
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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
Abstract
The invention discloses a kind of biodegradable packaging bags, formula includes chitosan, cellulose, starch, initiator and coupling agent, it is that 10~20% sodium hydrate aqueous solutions are placed in 12~16 DEG C of freezings 2~3 hours by mass fraction, chitosan and cellulose is added, 5~15min of the strong stirring of high speed, starch is added to stir evenly to form pretreatment fluid, pretreatment fluid sequentially adds initiator and coupling agent after washing is dry, it is to be mixed uniform, mixture is plasticized by extruder and is squeezed out, the biodegradable packaging bag is made in extruded stock after being granulated blown film.The present invention is using natural macromolecular material as raw material, the packaging bag not only prepared can not be polluted the environment with complete biodegradable, and by cellulose and chitosan is compound further improves the tensile strength of packaging bag, the toughness for increasing packaging bag solves the problems, such as that packaging bag is easy cracking.
Description
Technical field
The invention belongs to packaging bag technical field more particularly to a kind of biodegradable packaging bags.
Background technique
Packaging bag exactly is used to put the sack of article as its name suggests, as soon as slight packaging bag, gives huge numbers of families
It brings conveniently.It is counted according to modeling association of China is plastic reclaimed using Professional Committee, the usage amount of the daily packaging bag in China is up to 30
Hundred million, wherein being only used for the packaging bag of market shopping just up to 2,000,000,000.Currently, the packaging bag used in the market is by poly- second mostly
Alkene raw material is made, there are commonly: hp-ldpe, low-pressure high-density polyethylene and linear low density polyethylene also have
A small amount of packaging bag uses Production of PVC, and this packaging bag causes very serious resource wave since usage quantity is huge
Take and environmental pollution.
The main processing ways of packaging bag have landfill and burning, and landfill disposal needs to occupy a large amount of soil, and poly- second
Alkene packaging bag landfill at least needs the centuries that could rot in underground, serious contaminated soil；If taking the processing mode of burning,
It is then that can generate noxious fume and toxic gas, long-term pollution air influences the existence health of the mankind.Currently, also pushing away in the market
Gone out biodegradable packaging bag, however these packaging bags or just the only degradable raw material of small part can degrade, it is most of and also
Although being using nondegradable polyethylene or be exactly that can degrade, the intensity of packaging bag is inadequate, is easy to crack, can not
Meet the requirement of people.
Summary of the invention
It cannot degrade to solve existing packaging bag, intensity is inadequate, it is easy to the problems such as cracking, being unable to satisfy requirement,
The present invention proposes a kind of biodegradable packaging bag.
The purpose of the present invention will be realized by following technical method: it is a kind of biodegrade packaging bag, formula include chitosan,
Mass fraction is that 10~20% sodium hydrate aqueous solutions are placed in 12~16 DEG C of freezings by cellulose, starch, initiator and coupling agent
2~3 hours, chitosan and cellulose is added, high speed 5~15min of strong stirring adds starch and stirs evenly to form pretreatment
Liquid, pretreatment fluid sequentially adds initiator and coupling agent after washing is dry, to be mixed uniform, and mixture is passed through extruder
Plasticizing squeezes out, and the degradable packaging bag is made in extruded stock after being granulated blown film.
Preferably, a kind of biodegradable packaging bag, in terms of mass parts, the chitosan is 20~30 parts, fiber
Element is 30~40 parts, starch is 20~30 parts, 6~10 parts and 4~5 parts coupling agents of initiator.
Preferably, a kind of biodegradable packaging bag, the formula is 10~20% hydroxides by mass fraction
The sodium hydrate aqueous solution of 5~10mL is added in sodium water solution pretreatment, every gram of formula.
Preferably, a kind of biodegradable packaging bag, the initiator is radical initiator, and initiator is over cure
One of sour sodium, potassium peroxydisulfate or ammonium persulfate.
Preferably, described a kind of biodegradable packaging bag, the coupling agent be three isostearic acid titanium of isopropoxy or
One kind or mixture of aminopropyl triethoxysilane.
Preferably, a kind of biodegradable packaging bag, the temperature of the extruder is 150~160 DEG C, extruder
Revolving speed be 400~500r/min, the extruded stock being plasticized out since extruder be cooled to room temperature after again blown film.
Preferably, described a kind of biodegradable packaging bag, the extruded stock is overpressurized, heated, blow after send to blowing
Film machine blown film, is forced into 1.8~2.2MPa, and the temperature of heating is 160 DEG C~170 DEG C.
Compared with prior art, the present invention has following the utility model has the advantages that the present invention is using natural macromolecular material as raw material,
The packaging bag not only prepared can not be polluted the environment with complete biodegradable, and compound into one by cellulose and chitosan
Step improves the tensile strength of packaging bag, increases the toughness of packaging bag, solves the problems, such as that packaging bag is easy cracking.
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 biodegrade packaging bag, measurement 1000mL mass fraction is 18% sodium hydrate aqueous solution, and is placed it in
12~16 DEG C freeze 2~3 hours, and 24g chitosan and 36g cellulose is added, strongly stirring 10min, add the stirring of 28g starch
It is formed uniformly pretreatment fluid, pretreatment fluid sequentially adds 7g ammonium persulfate and the different tristearin of 5g isopropoxy three after washing is dry
Sour titanium, to be mixed to be uniformly plasticized mixture by extruder and squeeze out, the temperature of extruder is 156 DEG C, and the revolving speed of extruder is
447r/min, extruded stock send to inflation film manufacturing machine blown film after 2.1MPa high pressure, 166 DEG C of high temperature, air blowings and the biodegrade are made
Packaging bag.
Embodiment 2
A kind of biodegrade packaging bag, measurement 800mL mass fraction is 16% sodium hydrate aqueous solution, and places it in 12
~16 DEG C freeze 2~3 hours, and 27g chitosan and 33g cellulose is added, strongly stirring 10min, and it is equal to add the stirring of 26g starch
Even formation pretreatment fluid, pretreatment fluid sequentially add 10g potassium peroxydisulfate and the different tristearin of 4g isopropoxy three after washing is dry
Sour titanium, to be mixed to be uniformly plasticized mixture by extruder and squeeze out, the temperature of extruder is 158 DEG C, and the revolving speed of extruder is
476r/min, extruded stock send to inflation film manufacturing machine blown film after 1.9MPa high pressure, 163 DEG C of high temperature, air blowings and the biodegrade are made
Packaging bag.
Embodiment 3
A kind of biodegrade packaging bag, measurement 600mL mass fraction is 12% sodium hydrate aqueous solution, and places it in 12
~16 DEG C freeze 2~3 hours, and 30g chitosan and 33g cellulose is added, strongly stirring 10min, and it is equal to add the stirring of 25g starch
Even formation pretreatment fluid, pretreatment fluid sequentially add 8g after washing is dry and cross sodium peroxydisulfate and 4g aminopropyl-triethoxy silicon
Alkane, to be mixed to be uniformly plasticized mixture by extruder and squeeze out, the temperature of extruder is 155 DEG C, and the revolving speed of extruder is
428r/min, extruded stock send to inflation film manufacturing machine blown film after 2.0MPa high pressure, 169 DEG C of high temperature, air blowings and the biodegrade are made
Packaging bag.
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 biodegrade packaging bag, it is characterised in that: formula includes chitosan, cellulose, starch, initiator and coupling
Mass fraction is that 10~20% sodium hydrate aqueous solutions are placed in 12~16 DEG C of freezings 2~3 hours, chitosan and fibre is added by agent
Dimension element, high speed 5~15min of strong stirring, adds starch and stirs evenly to form pretreatment fluid, and pretreatment fluid is by washing drying
After sequentially add initiator and coupling agent, it is to be mixed uniformly, mixture is squeezed out by extruder plasticizing, extruded stock is by granulation
The degradable packaging bag is made after blown film.
2. a kind of biodegradable packaging bag according to claim 1, it is characterised in that: in terms of mass parts, the chitosan
For 20~30 parts, cellulose be 30~40 parts, starch is 20~30 parts, 6~10 parts and 4~5 parts coupling agents of initiator.
3. a kind of biodegradable packaging bag according to claim 1, it is characterised in that: the formula is by mass fraction
The sodium hydrate aqueous solution of 5~10mL is added in the pretreatment of 10~20% sodium hydrate aqueous solutions, every gram of formula.
4. a kind of biodegradable packaging bag according to claim 1, it is characterised in that: the initiator is free radical initiation
Agent, initiator are one of sodium peroxydisulfate, potassium peroxydisulfate or ammonium persulfate.
5. a kind of biodegradable packaging bag according to claim 1, it is characterised in that: the coupling agent is isopropoxy three
One kind or mixture of isostearic acid titanium or aminopropyl triethoxysilane.
6. a kind of biodegradable packaging bag according to claim 1, it is characterised in that: the temperature of the extruder is 150
~160 DEG C, the revolving speed of extruder is 400~500r/min, the extruded stock being plasticized out since extruder be cooled to room temperature after again
Blown film.
7. a kind of biodegradable packaging bag according to claim 1, it is characterised in that: the extruded stock is overpressurized, is added
Heat is sent after blowing to inflation film manufacturing machine blown film, and 1.8~2.2MPa is forced into, and the temperature of heating is 160 DEG C~170 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810776885.2A CN109081952A (en) | 2018-07-13 | 2018-07-13 | A kind of biodegrade packaging bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810776885.2A CN109081952A (en) | 2018-07-13 | 2018-07-13 | A kind of biodegrade packaging bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109081952A true CN109081952A (en) | 2018-12-25 |
Family
ID=64837999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810776885.2A Pending CN109081952A (en) | 2018-07-13 | 2018-07-13 | A kind of biodegrade packaging bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109081952A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110511437A (en) * | 2019-07-25 | 2019-11-29 | 安徽新翔包装材料有限公司 | A kind of Biodegradable environment protection type packaging material for food |
| CN113683819A (en) * | 2021-09-24 | 2021-11-23 | 南京五瑞生物降解新材料研究院有限公司 | Kitchen waste full-biodegradable hand bag and preparation method thereof |
Citations (6)
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|---|---|---|---|---|
| WO2003089490A2 (en) * | 2002-04-22 | 2003-10-30 | Novamont S.P.A. | Biodegradable polyesters obtained by reactive extrusion |
| CN103289129A (en) * | 2013-06-24 | 2013-09-11 | 地球卫士（天津）环保新材料有限公司 | Biomass-based green film and a preparation method thereof |
| CN103450507A (en) * | 2013-08-23 | 2013-12-18 | 吴江市英力达塑料包装有限公司 | Chitosan composite film and preparation method thereof |
| WO2015057847A1 (en) * | 2013-10-16 | 2015-04-23 | Cerulean Pharma Inc. | Conjugates, particles, compositions, and related methods |
| JP5727497B2 (en) * | 2009-11-05 | 2015-06-03 | ノバモント・ソシエタ・ペル・アチオニＮｏｖａｍｏｎｔ Ｓｏｃｉｅｔａ Ｐｅｒ Ａｚｉｏｎｉ | Mixtures of at least one natural source polymer and biodegradable polyesters |
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-
2018
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Patent Citations (6)
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| WO2003089490A2 (en) * | 2002-04-22 | 2003-10-30 | Novamont S.P.A. | Biodegradable polyesters obtained by reactive extrusion |
| JP5727497B2 (en) * | 2009-11-05 | 2015-06-03 | ノバモント・ソシエタ・ペル・アチオニＮｏｖａｍｏｎｔ Ｓｏｃｉｅｔａ Ｐｅｒ Ａｚｉｏｎｉ | Mixtures of at least one natural source polymer and biodegradable polyesters |
| CN103289129A (en) * | 2013-06-24 | 2013-09-11 | 地球卫士（天津）环保新材料有限公司 | Biomass-based green film and a preparation method thereof |
| CN103450507A (en) * | 2013-08-23 | 2013-12-18 | 吴江市英力达塑料包装有限公司 | Chitosan composite film and preparation method thereof |
| WO2015057847A1 (en) * | 2013-10-16 | 2015-04-23 | Cerulean Pharma Inc. | Conjugates, particles, compositions, and related methods |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110511437A (en) * | 2019-07-25 | 2019-11-29 | 安徽新翔包装材料有限公司 | A kind of Biodegradable environment protection type packaging material for food |
| CN113683819A (en) * | 2021-09-24 | 2021-11-23 | 南京五瑞生物降解新材料研究院有限公司 | Kitchen waste full-biodegradable hand bag and preparation method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20181225 |