CN103819803A - Preparation method of plastic master batch for degradable environment-friendly shopping bag - Google Patents

Preparation method of plastic master batch for degradable environment-friendly shopping bag Download PDF

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Publication number
CN103819803A
CN103819803A CN201210466898.2A CN201210466898A CN103819803A CN 103819803 A CN103819803 A CN 103819803A CN 201210466898 A CN201210466898 A CN 201210466898A CN 103819803 A CN103819803 A CN 103819803A
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CN
China
Prior art keywords
density polyethylene
master batch
preparation
shopping bag
plastic master
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201210466898.2A
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Chinese (zh)
Inventor
黄盛�
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WUXI HUANGSHENG PACKING PRODUCTS Co Ltd
Original Assignee
WUXI HUANGSHENG PACKING PRODUCTS Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by WUXI HUANGSHENG PACKING PRODUCTS Co Ltd filed Critical WUXI HUANGSHENG PACKING PRODUCTS Co Ltd
Priority to CN201210466898.2A priority Critical patent/CN103819803A/en
Publication of CN103819803A publication Critical patent/CN103819803A/en
Pending legal-status Critical Current

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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
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/72—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7461—Combinations of dissimilar mixers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/02—Making granules by dividing preformed material
    • B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/12—Making granules characterised by structure or composition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/04—Particle-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/20—Compounding polymers with additives, e.g. colouring
    • C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
    • C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92561—Time, e.g. start, termination, duration or interruption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92828—Raw material handling or dosing, e.g. active hopper or feeding device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92895—Barrel or housing
    • 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
    • C08J2303/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
    • C08J2303/02—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
    • C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2423/04—Homopolymers or copolymers of ethene
    • C08J2423/06—Polyethene
    • 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
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/06—Properties of polyethylene
    • C08L2207/062—HDPE
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/06—Properties of polyethylene
    • C08L2207/066—LDPE (radical process)

Abstract

The invention discloses a preparation method of a plastic master batch for a degradable environment-friendly shopping bag. The plastic master batch comprises the following ingredients by weight percent: 2-3% of stearic acid, 5-6% of calcium stearate, 6-8% of a titanate coupling agent, 12-16% of heavy calcium carbonate powder, 4-6% of liquid paraffin, 16-18% of ethylene-methyl acrylate copolymer, 12-14% of linear polyethylene, 8-10% of high density polyethylene, and the balance of low density polyethylene. The preparation method comprises the following steps: placing the stearic acid, calcium stearate, titanate coupling agent, heavy calcium carbonate powder, liquid paraffin, ethylene-methyl acrylate copolymer, low density polyethylene, linear polyethylene, and high density polyethylene in a high-speed kneading machine, heating to 115-125 DEG C, starting to stir, stirring for 14-16 minutes, and placing the mixture in a twin-screw extruder, and pelletizing on the twin-screw extruder at 155-165 DEG C.

Description

A kind of preparation method of Degradable environment protection shopping bag plastic master batch
Technical field
The present invention relates to field of packaging material, relate in particular to a kind of preparation method of Degradable environment protection shopping bag plastic master batch.
Background technology
The shopping bag that supermarket, market, country fair etc. provide is all to adopt the polymer materialss such as polystyrene, polyethylene, polypropylene to make substantially, because they cannot be degraded, ecotope is done great damage, threatening the space of human survival, people are referred to as " white pollution ".For this reason, general office of State Council of the People's Republic of China has issued " selling the notice that uses plastic shopping bag about limit production ".According to notice, in view of shopping bag becomes the main source of " white pollution ", the various places People's Government, ministries and commissions etc. should forbid producing, selling and uying super-thin plastic shopping bag, and will carry out plastic shopping bag Paid Use System from now on.From 1 day June in 2008, plastic shopping bag Paid Use System was carried out in commodity retail place in all supermarkets, market, country fair etc., must not provide free without exception plastic shopping bag.Although paid utilization has limited the shopping bag of some amount, the pollution problem of shopping bag itself is not still resolved.
For this reason, people start degradable package bag to study gradually, and increasing degradative plastics goods start to emerge in large numbers.But always there is such or such deficiency in current degradation products.At present many is that employing petroleum-based plastics polyolefine material is that carrier is prepared degradative plastics, or adopt the polylactic acid-based macromolecular material of preparing from crude substance to improve the biological degradability of degradative plastics, but, the resistance toheat deficiency of material after processing, be difficult to meet the service requirements of shopping bag, and the cost compare of poly(lactic acid) is high.
For example, application number is the blend that has adopted degradable high polymer material and natural macromolecular material in 200710190063.8 patent, to solving the contradiction between Performance and Cost Modeling, wherein, the content of poly(lactic acid) and thermoplastic starch is 1: 1 substantially, although this scheme makes moderate progress to the performance of product, still not ideal enough and cost is still very high.
Summary of the invention
The object of the invention is to propose a kind of preparation method of Degradable environment protection shopping bag plastic master batch, master batch prepared by the method is by the adjustment of component, make the starch-based degradable shopping bag take it as master batch there is enough intensity and toughness and deflection, meet service requirements.
For reaching this object, the present invention by the following technical solutions:
A kind of preparation method of Degradable environment protection shopping bag plastic master batch, the composition of this plastic master batch is made up of following component by weight percentage: stearic acid 2-3%, calcium stearate 5-6%, titanate coupling agent 6-8%, heavy calcium carbonate 12-16%, whiteruss 4-6%, ethylene-methyl acrylate copolymer 16-18%, linear polyethylene 12-14%, high density polyethylene(HDPE) 8-10%, surplus is Low Density Polyethylene; Described preparation method is: in proportion stearic acid, calcium stearate, titanate coupling agent, heavy calcium carbonate, whiteruss, ethylene-methyl acrylate copolymer, Low Density Polyethylene, linear polyethylene, high density polyethylene(HDPE) are put into high-speed kneading machine, be heated to 115-125 ℃ and start stir, stir 14-16 minute; Compound is put into twin screw extruder, granulation on twin screw extruder at 155-165 ℃ of temperature.
Master batch of the present invention, for the preparation of starch-based degradable packing bag, mixes rear granulation blowing with starch according to the ratio of 1:2-3 by this master batch.
Beneficial effect of the present invention is:
Master batch prepared by the inventive method, by the adjustment of component, makes the starch-based degradable shopping bag take it as master batch have enough intensity and toughness and deflection, meets service requirements.
Embodiment
Embodiment mono-
A kind of preparation method of Degradable environment protection shopping bag plastic master batch, the composition of this plastic master batch is made up of following component by weight percentage: stearic acid 2%, calcium stearate 6%, titanate coupling agent 6%, heavy calcium carbonate 16%, whiteruss 4%, ethylene-methyl acrylate copolymer 18%, linear polyethylene 12%, high density polyethylene(HDPE) 10%, surplus is Low Density Polyethylene; Described preparation method is: in proportion stearic acid, calcium stearate, titanate coupling agent, heavy calcium carbonate, whiteruss, ethylene-methyl acrylate copolymer, Low Density Polyethylene, linear polyethylene, high density polyethylene(HDPE) are put into high-speed kneading machine, be heated to 115 ℃ and start stir, stir 16 minutes; Compound is put into twin screw extruder, granulation on twin screw extruder at 155 ℃ of temperature.
Embodiment bis-
A kind of preparation method of Degradable environment protection shopping bag plastic master batch, the composition of this plastic master batch is made up of following component by weight percentage: stearic acid 3%, calcium stearate 5%, titanate coupling agent 8%, heavy calcium carbonate 12%, whiteruss 6%, ethylene-methyl acrylate copolymer 16%, linear polyethylene 14%, high density polyethylene(HDPE) 8%, surplus is Low Density Polyethylene; Described preparation method is: in proportion stearic acid, calcium stearate, titanate coupling agent, heavy calcium carbonate, whiteruss, ethylene-methyl acrylate copolymer, Low Density Polyethylene, linear polyethylene, high density polyethylene(HDPE) are put into high-speed kneading machine, be heated to 125 ℃ and start stir, stir 14 minutes; Compound is put into twin screw extruder, granulation on twin screw extruder at 165 ℃ of temperature.
Embodiment tri-
A kind of preparation method of Degradable environment protection shopping bag plastic master batch, the composition of this plastic master batch is made up of following component by weight percentage: stearic acid 2.5%, calcium stearate 5.5%, titanate coupling agent 7%, heavy calcium carbonate 14%, whiteruss 5%, ethylene-methyl acrylate copolymer 17%, linear polyethylene 13%, high density polyethylene(HDPE) 9%, surplus is Low Density Polyethylene; Described preparation method is: in proportion stearic acid, calcium stearate, titanate coupling agent, heavy calcium carbonate, whiteruss, ethylene-methyl acrylate copolymer, Low Density Polyethylene, linear polyethylene, high density polyethylene(HDPE) are put into high-speed kneading machine, be heated to 120 ℃ and start stir, stir 15 minutes; Compound is put into twin screw extruder, granulation on twin screw extruder at 160 ℃ of temperature.

Claims (1)

1. the preparation method of a Degradable environment protection shopping bag plastic master batch, it is characterized in that, the composition of this plastic master batch is made up of following component by weight percentage: stearic acid 2-3%, calcium stearate 5-6%, titanate coupling agent 6-8%, heavy calcium carbonate 12-16%, whiteruss 4-6%, ethylene-methyl acrylate copolymer 16-18%, linear polyethylene 12-14%, high density polyethylene(HDPE) 8-10%, surplus is Low Density Polyethylene; Described preparation method is: in proportion stearic acid, calcium stearate, titanate coupling agent, heavy calcium carbonate, whiteruss, ethylene-methyl acrylate copolymer, Low Density Polyethylene, linear polyethylene, high density polyethylene(HDPE) are put into high-speed kneading machine, be heated to 115-125 ℃ and start stir, stir 14-16 minute; Compound is put into twin screw extruder, granulation on twin screw extruder at 155-165 ℃ of temperature.
CN201210466898.2A 2012-11-16 2012-11-16 Preparation method of plastic master batch for degradable environment-friendly shopping bag Pending CN103819803A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210466898.2A CN103819803A (en) 2012-11-16 2012-11-16 Preparation method of plastic master batch for degradable environment-friendly shopping bag

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210466898.2A CN103819803A (en) 2012-11-16 2012-11-16 Preparation method of plastic master batch for degradable environment-friendly shopping bag

Publications (1)

Publication Number Publication Date
CN103819803A true CN103819803A (en) 2014-05-28

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104817756A (en) * 2015-04-17 2015-08-05 柳州蔚园塑料彩印包装有限责任公司 Preparation method of environment-friendly shopping bag
CN106188820A (en) * 2016-08-25 2016-12-07 芜湖市天雄新材料科技有限公司 A kind of environment-friendly shopping bag plastic master batch of biodegradable

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104817756A (en) * 2015-04-17 2015-08-05 柳州蔚园塑料彩印包装有限责任公司 Preparation method of environment-friendly shopping bag
CN106188820A (en) * 2016-08-25 2016-12-07 芜湖市天雄新材料科技有限公司 A kind of environment-friendly shopping bag plastic master batch of biodegradable

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Application publication date: 20140528