CN107826461A - Paper-plastic stick food bag and preparation method thereof - Google Patents

Paper-plastic stick food bag and preparation method thereof Download PDF

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Publication number
CN107826461A
CN107826461A CN201711131397.8A CN201711131397A CN107826461A CN 107826461 A CN107826461 A CN 107826461A CN 201711131397 A CN201711131397 A CN 201711131397A CN 107826461 A CN107826461 A CN 107826461A
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Prior art keywords
paper
plastic
preparation
food bag
filler
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Inventor
钱万水
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Big Plastics Machinery Co Ltd Of Anhui Yue Er
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Big Plastics Machinery Co Ltd Of Anhui Yue Er
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    • 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
    • B65D65/40—Applications of laminates for particular packaging purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/06—Layered products comprising a layer of paper or cardboard specially treated, e.g. surfaced, parchmentised
    • 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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/70—Food packaging
    • 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
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—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
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/06—Polyethene
    • 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
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2475/04—Polyurethanes
    • 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
    • C08J2497/00—Characterised by the use of lignin-containing materials
    • C08J2497/02—Lignocellulosic material, e.g. wood, straw or bagasse
    • 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
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • 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
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • 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
    • C08K2201/00—Specific properties of additives
    • C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
    • 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
    • C08K3/34—Silicon-containing compounds
    • C08K3/346—Clay
    • 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
    • C08K3/34—Silicon-containing compounds
    • C08K3/36—Silica
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Wrappers (AREA)

Abstract

The present invention relates to plastic applications, specifically disclose a kind of paper-plastic stick food bag and preparation method thereof, the silane coupler that low density polyethylene (LDPE), polyurethane resin, filler, ethyl acetate, vinyltrimethoxy silane, tricresyl phosphate and the trade mark are KH570 is kneaded, so that micelle is made；The micelle is added in extruder and carries out extrusion molding, the paper-plastic stick food bag is made in processing；The paper-plastic stick is heated with food bag and is coated on the surface of brown paper to form plastic layer, shaping so that paper-plastic stick food bag is made；Wherein, the filler is made by bark, herbaceous plant, chitosan, chitin fiber, diatomite, calcium stearate, sodium alginate, kaolin, ferric stearate and nano-titanium oxide.Each raw material sources of the food bag are abundant, simple and easy to get, and the food bag is with excellent degradation property and with anti-microbial property so that its is durable, environmentally friendly, suitable for widely using.

Description

Paper-plastic stick food bag and preparation method thereof
Technical field
The present invention relates to field of plastic products, in particular it relates to a kind of paper-plastic stick food bag and preparation method thereof.
Background technology
Plastic products are rather common in daily life, such as：The plastic products such as polybag, plastic bottle.Such as polybag Using frequently polybag etc. in daily life, in almost living everywhere can use obtain, but polybag is to people's While life brings convenient, serious pollution problem is also brought to living environment.
It is well known that polybag has the advantages of protrusions such as light, mechanical performance is excellent, but it is difficult to degrade after discarding It is a current technical problem for being badly in need of solving result in serious problem of environmental pollution.
And it is current, the preparation technology of most degradable product is complicated, and preparation cost is higher, therefore limits it and enter One step is promoted the use of.
The content of the invention
It is an object of the invention to provide a kind of paper-plastic stick food bag and preparation method thereof, the paper-plastic stick food bag are each Raw material sources are abundant, simple and easy to get, and the paper-plastic stick food bag has excellent degradation property so that and its is durable, environmentally friendly, Suitable for widely using.
To achieve these goals, the invention provides a kind of preparation method of paper-plastic stick food bag, including it is following Step：
By low density polyethylene (LDPE), polyurethane resin, filler, ethyl acetate, vinyltrimethoxy silane, tricresol phosphate Ester and the silane coupler that the trade mark is KH570 are kneaded, so that micelle is made；
The micelle is added in extruder and carries out extrusion molding, paper-plastic stick film is made in processing；
The paper-plastic stick is heated with film and is coated on the surface of brown paper to form plastic layer, shaping to make Obtain paper-plastic stick food bag；
Wherein, the filler is by bark, herbaceous plant, chitosan, chitin fiber, diatomite, calcium stearate, alginic acid Sodium, kaolin, ferric stearate and nano-titanium oxide are made.
Paper-plastic stick food bag made from a kind of above-mentioned preparation method is additionally provided in the present invention.
Pass through above-mentioned technical proposal, it is present invention selection bark, herbaceous plant, chitosan, chitin fiber, diatomite, hard The filler of film preparation is made in resin acid calcium, sodium alginate, kaolin, ferric stearate and nano-titanium oxide；And first by bark, draft The components such as plant, chitosan, chitin fiber, diatomite add calcium stearate, sodium alginate, height after carrying out the first heat treatment The components such as ridge soil, ferric stearate and nano-titanium oxide, and then be further heat-treated and to be sufficiently mixed to improve between each component Mutual synergy between each raw material.In above-mentioned technical proposal, it is fine to add bark, herbaceous plant, chitosan, chitin The components such as dimension, diatomite also assures that it has excellent mechanical performance and excellent while the degradation rate of modeling film is improved Anti-microbial property；The components such as other calcium stearate, sodium alginate, kaolin, ferric stearate and nano-titanium oxide further improve The readily degradable energy of plastic sheeting so that plastic sheeting and its environmental protection of paper-plastic stick product is made, being capable of extensive use.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Embodiment
The embodiment of the present invention is described in detail below.It is it should be appreciated that described herein specific Embodiment is merely to illustrate and explain the present invention, and is not intended to limit the invention.
The end points of disclosed scope and any value are not limited to the accurate scope or value herein, these scopes or Value should be understood to comprising the value close to these scopes or value.For number range, between the endpoint value of each scope, respectively It can be combined with each other between the endpoint value of individual scope and single point value, and individually between point value and obtain one or more New number range, these number ranges should be considered as specific open herein.
The invention provides a kind of preparation method of paper-plastic stick food bag, including：
By low density polyethylene (LDPE), polyurethane resin, filler, ethyl acetate, vinyltrimethoxy silane, tricresol phosphate Ester and the silane coupler that the trade mark is KH570 are kneaded, so that micelle is made；
The micelle is added in extruder and carries out extrusion molding, paper-plastic stick film is made in processing；
The paper-plastic stick is heated with film and is coated on the surface of brown paper to form plastic layer, shaping to make Obtain paper-plastic stick food bag；
Wherein, the filler is by bark, herbaceous plant, chitosan, chitin fiber, diatomite, calcium stearate, alginic acid Sodium, kaolin, ferric stearate and nano-titanium oxide are made.
In above-mentioned technical proposal, each section of operating temperature of extruder can select in wide scope during work, still In order to improve the mechanical performance of the operating efficiency of extrusion and obtained film, it is preferred that the extruder includes what is be sequentially connected Feeding section, stage casing and extruder head, and the operating temperature of the extruder is：100-110 DEG C of feeding section, 120-130 DEG C of stage casing, 185-195 DEG C of extruder head.
In above-mentioned technical proposal, compounding conditions can select in wide scope, but in order to improve the work of extrusion effect The mechanical performance of rate and obtained film, it is preferred that the mixing at least meets following condition：Temperature is 120-150 DEG C, and/ Or the time is 2-4h.
In above-mentioned technical proposal, the processing includes inflation, traction, printing and the winding carried out successively；In order to further The mechanical performance of film made from raising, it is preferable that the processing includes inflation, traction, printing and the winding carried out successively；
Blow-up ratio is that draw ratio is 8-9 in 3-4, and/or the procedure of processing in the procedure of processing.
In above-mentioned technical proposal, the specific dosage of each raw material can select in wide scope, but in order to improve film Readily degradable energy and mechanical performance, it is preferable that low density polyethylene (LDPE), polyurethane resin, filler, ethyl acetate, vinyl three The weight ratio for the silane coupler that methoxy silane, tricresyl phosphate and the trade mark are KH570 is 100：15-20：10-15：5- 10：1-5：3-5：3-5.
It is excellent in order to further improve the degradation property of paper-plastic stick food bag and mechanical performance in above-mentioned technical proposal Selection of land, the filler are made by following methods：Bark, herbaceous plant, chitosan, chitin fiber and diatomite are carried out first Mixture M 1 is made after mixing, the first heat treatment；
Calcium stearate, sodium alginate, kaolin, ferric stearate and nano-titanium oxide are added in the mixture M 1 Row second mixes, second heat treatment after, cool drying, ground sieve series obtain the paper-plastic stick plastic filler；
Wherein, the temperature of second heat treatment is higher than 65-70 DEG C of the temperature of the described first heat treatment.
In above-mentioned technical proposal, the temperature of first heat treatment can select in wide scope, but in order to improve The effect of heat treatment and then improve promotes the interaction between each raw material, it is preferable that the temperature of first heat treatment is 100-110℃。
In above-mentioned technical proposal, first heat treatment, the time of the second heat treatment can select in wide scope, But in order to improve the efficiency of obtained first heat treatment, the second heat treatment, it is preferable that the time of first heat treatment be for 8-12h；The time of second heat treatment is 2-4h.
Equally, in above-mentioned technical proposal, first mixing, the condition of the second mixing can select in wide scope, But in order to improve the effect and efficiency of first mixing, the second mixing, it is preferable that what first mixing, second mixed Condition is each stood alone as：Rotating speed is 3000-5000rpm, time 1-1.5h.
In above-mentioned technical proposal, the specific dosage of each raw material can select in wide scope, but be somebody's turn to do to improve to use The readily degradable energy of paper-plastic stick film made from filler, it is preferable that the bark, herbaceous plant, chitosan, chitin are fine Dimension, diatomite, calcium stearate, sodium alginate, kaolin, the weight ratio of ferric stearate and nano-titanium oxide are 100：20-30：3- 6：5-10：10-15：3-5：1-3：2-4：3-6：0.5-1.1.
In addition, in order to improve the readily degradable energy of obtained film, it is preferable that the herbaceous plant be the tuber of dwarf lilyturf, folium isatidis, One or more in peppermint, the fruit of Chinese magnoliavine, wormwood and American aloe.
Paper-plastic stick food bag made from a kind of above-mentioned preparation method is additionally provided in the present invention.
Preparation example 1
Bark, the tuber of dwarf lilyturf, chitosan, chitin fiber and diatomite are stirred into 1.5h at 3,000 rpm, and in 110 DEG C of heat Mixture M 1 is made in 6h after processing；
Calcium stearate, sodium alginate, kaolin, ferric stearate and nano-titanium oxide are added in the mixture M 1, After stirring 1.5h at 3,000 rpm, cool drying, ground sieve series obtain the paper-plastic stick modeling after 175 DEG C of heat treatment 2h Expect filler, be denoted as W1；
Wherein, bark, the tuber of dwarf lilyturf, chitosan, chitin fiber, diatomite, calcium stearate, sodium alginate, kaolin, tristearin The weight ratio of sour iron and nano-titanium oxide is 100：20：3：5：3：1：3：5：3：0.5.
Preparation example 2
Bark, the fruit of Chinese magnoliavine, chitosan, chitin fiber and diatomite are stirred into 1.2h under 4000rpm, and at 115 DEG C Mixture M 1 is made in 5h after heat treatment；
Calcium stearate, sodium alginate, kaolin, ferric stearate and nano-titanium oxide are added in the mixture M 1, After stirring 1.2h under 4000rpm, cool drying, ground sieve series obtain the paper-plastic stick and used after 180 DEG C of heat treatment 1.5h Plastic filler, it is denoted as W2；
Wherein, the bark, fruit of Chinese magnoliavine, chitosan, chitin fiber, diatomite, calcium stearate, sodium alginate, kaolin, hard The weight of resin acid iron and nano-titanium oxide ratio is 100：25：5：10：4：2：4：7：5：1.2.
Preparation example 3
Bark, American aloe, chitosan, chitin fiber and diatomite are stirred into 1h under 3500rpm, and in 120 DEG C of heat Mixture M 1 is made in 4h after processing；
Calcium stearate, sodium alginate, kaolin, ferric stearate and nano-titanium oxide are added in the mixture M 1, After stirring 1h under 5000rpm, cool drying, ground sieve series obtain the paper-plastic stick plastics after 190 DEG C of heat treatment 1h Filler, it is denoted as W3；
Wherein, bark, American aloe, chitosan, chitin fiber, diatomite, calcium stearate, sodium alginate, kaolin, hard The weight of resin acid iron and nano-titanium oxide ratio is 100：30：6：15：5：3：5：10：6：1.5.
Preparation example 4
Paper-plastic stick plastic filler is prepared Following the procedure of Example 1, is denoted as W4；The difference is that do not carry out at the second heat Reason, directly by bark, the tuber of dwarf lilyturf, chitosan, chitin fiber, diatomite, calcium stearate, sodium alginate, kaolin, ferric stearate Mixture M 1 is made in 8h after 110 DEG C of heat treatment after being mixed together with nano-titanium oxide.
Preparation example 5
Paper-plastic stick plastic filler is prepared Following the procedure of Example 1, is denoted as W5；The difference is that do not carry out at the first heat Reason, directly by bark, the tuber of dwarf lilyturf, chitosan, chitin fiber, diatomite, calcium stearate, sodium alginate, kaolin, ferric stearate Mixture M 1 is made in 8h after 175 DEG C of heat treatment after being mixed together with nano-titanium oxide.
Preparation example 6
Paper-plastic stick plastic filler is prepared Following the procedure of Example 1, is denoted as W6；The difference is that wheat is not added in raw material Winter.
Preparation example 7
Paper-plastic stick plastic filler is prepared Following the procedure of Example 1, is denoted as W7, the difference is that not adding shell in raw material Glycan.
Preparation example 8
Paper-plastic stick plastic filler is prepared Following the procedure of Example 1, is denoted as W8, the difference is that not adding first in raw material Shell cellulose fiber.
Preparation example 9
Paper-plastic stick plastic filler is prepared Following the procedure of Example 1, is denoted as W9, the difference is that not adding sea in raw material Mosanom.
Preparation example 10
Paper-plastic stick plastic filler is prepared Following the procedure of Example 1, is denoted as D10, the difference is that not added in raw material Ferric stearate.
Preparation example 11
Paper-plastic stick plastic filler is prepared Following the procedure of Example 1, is denoted as D11, the difference is that not added in raw material Nano-titanium oxide.
Embodiment 1
By low density polyethylene (LDPE), polyurethane resin, filler W1, ethyl acetate, vinyltrimethoxy silane, tripotassium phosphate Phenolic ester and the silane coupler that the trade mark is KH570 are kneaded 4h at 120 DEG C, so that micelle is made；
The micelle is added in extruder and carries out extrusion molding, inflation, traction, printing, the obtained paper of winding It is compound to use film, the paper-plastic stick is heated with film and is coated on the surface of brown paper to form plastic layer, shaping So that paper-plastic stick food bag is made, A1 is denoted as；Blow-up ratio is 3 in the procedure of processing, and draw ratio is 8 in the procedure of processing；
The operating temperature of the extruder is：100 DEG C of feeding section, 120 DEG C of stage casing, 185 DEG C of extruder head；
Wherein, the low density polyethylene (LDPE), polyurethane resin, filler, ethyl acetate, vinyltrimethoxy silane, phosphorus The weight ratio for the silane coupler that sour front three phenolic ester and the trade mark are KH570 is 100：15：10：5：1：3：3.
Tested according to the method for detection example 1, obtained A1 compares more traditional polyvinyl chloride plastic film degradation speed institute The percentage of raising is 63%.
Tested according to the method for detection example 2, obtained A1 total plate count (n/cfug-1) it is 9.
Embodiment 2
By low density polyethylene (LDPE), polyurethane resin, filler W2, ethyl acetate, vinyltrimethoxy silane, tripotassium phosphate Phenolic ester and the silane coupler that the trade mark is KH570 are kneaded 3h at 130 DEG C, so that micelle is made；
The micelle is added in extruder and carries out extrusion molding, inflation, traction, printing, the obtained paper of winding It is compound to use film, the paper-plastic stick is heated with film and is coated on the surface of brown paper to form plastic layer, shaping So that paper-plastic stick food bag is made, A2 is denoted as；Blow-up ratio is 4 in the procedure of processing, and draw ratio is 9 in the procedure of processing；
The operating temperature of the extruder is：105 DEG C of feeding section, 125 DEG C of stage casing, 190 DEG C of extruder head；
Wherein, the low density polyethylene (LDPE), polyurethane resin, filler, ethyl acetate, vinyltrimethoxy silane, phosphorus The weight ratio for the silane coupler that sour front three phenolic ester and the trade mark are KH570 is 100：18：13：8：3：4：4.
Tested according to the method for detection example 1, obtained A2 compares more traditional polyvinyl chloride plastic film degradation speed institute The percentage of raising is 65%.
Tested according to the method for detection example 2, obtained A3 total plate count (n/cfug-1) it is 8.
Embodiment 3
By low density polyethylene (LDPE), polyurethane resin, filler W3, ethyl acetate, vinyltrimethoxy silane, tripotassium phosphate Phenolic ester and the silane coupler that the trade mark is KH570 are kneaded 2h at 50 DEG C, so that micelle is made；
The micelle is added in extruder and carries out extrusion molding, inflation, traction, printing, the obtained paper of winding It is compound to use film, the paper-plastic stick is heated with film and is coated on the surface of brown paper to form plastic layer, shaping So that paper-plastic stick food bag is made, A3 is denoted as；Blow-up ratio is 4 in the procedure of processing, and draw ratio is 9 in the procedure of processing；
The operating temperature of the extruder is：110 DEG C of feeding section, 130 DEG C of stage casing, 195 DEG C of extruder head；
Wherein, the low density polyethylene (LDPE), polyurethane resin, filler, ethyl acetate, vinyltrimethoxy silane, phosphorus The weight ratio for the silane coupler that sour front three phenolic ester and the trade mark are KH570 is 100：20：15：10：5：5：5.
Tested according to the method for detection example 1, obtained A3 compares more traditional polyvinyl chloride plastic film degradation speed institute The percentage of raising is 64%.
Tested according to the method for detection example 2, obtained A3 total plate count (n/cfug-1) it is 7.
Embodiment 4
Paper-plastic stick food bag is prepared Following the procedure of Example 1, is denoted as A4；The difference is that used filler is W4。
Tested according to the method for detection example 1, obtained A4 compares more traditional polyvinyl chloride plastic film degradation speed institute The percentage of raising is 55%.
Tested according to the method for detection example 2, obtained A4 total plate count (n/cfug-1) it is 10.
Embodiment 5
Paper-plastic stick food bag is prepared Following the procedure of Example 1, is denoted as A5；The difference is that used filler is W5。
Tested according to the method for detection example 1, obtained A5 compares more traditional polyvinyl chloride plastic film degradation speed institute The percentage of raising is 56%.
Tested according to the method for detection example 2, obtained A5 total plate count (n/cfug-1) it is 10.
Comparative example 1
Paper-plastic stick food bag is prepared Following the procedure of Example 1, is denoted as D1；The difference is that used filler is W6。
Tested according to the method for detection example 1, obtained D1 is carried compared to more traditional polyvinyl chloride plastic pocket degradation speed High percentage is 34%.
Tested according to the method for detection example 2, obtained D1 total plate count (n/cfug-1) it is 15.
Comparative example 2
Paper-plastic stick food bag is prepared Following the procedure of Example 1, is denoted as D2；The difference is that used filler is W7。
Tested according to the method for detection example 1, obtained D2 is carried compared to more traditional polyvinyl chloride plastic pocket degradation speed High percentage is 33%.
Tested according to the method for detection example 2, obtained D2 total plate count (n/cfug-1) it is 20.
Comparative example 3
Paper-plastic stick food bag is prepared Following the procedure of Example 1, is denoted as D3；The difference is that used filler is W8。
Tested according to the method for detection example 1, obtained D3 is carried compared to more traditional polyvinyl chloride plastic pocket degradation speed High percentage is 35%.
Tested according to the method for detection example 2, obtained D3 total plate count (n/cfug-1) it is 25.
Comparative example 4
Paper-plastic stick food bag is prepared Following the procedure of Example 1, is denoted as D4；The difference is that used filler is W9。
Tested according to the method for detection example 1, obtained D4 is carried compared to more traditional polyvinyl chloride plastic pocket degradation speed High percentage is 32%.
Tested according to the method for detection example 2, obtained D1 total plate count (n/cfug-1) it is 18.
Comparative example 5
Paper-plastic stick food bag is prepared Following the procedure of Example 1, is denoted as D5；The difference is that used filler is W10。
Tested according to the method for detection example 1, obtained D5 is carried compared to more traditional polyvinyl chloride plastic pocket degradation speed High percentage is 32%.
Tested according to the method for detection example 2, obtained D1 total plate count (n/cfug-1) it is 12.
Comparative example 6
Paper-plastic stick food bag is prepared Following the procedure of Example 1, is denoted as D6；The difference is that used filler is W11。
Tested according to the method for detection example 1, obtained D6 is carried compared to more traditional polyvinyl chloride plastic pocket degradation speed High percentage is 30%.
Tested according to the method for detection example 2, obtained D1 total plate count (n/cfug-1) it is 15.
Detect example 1
By above-mentioned obtained paper-plastic stick food bag A1-A5 and D1-D6, it is tested according to ASTM-DT7475-11 method Biodegradation Times, and the percentage (%) that the degradation speed for comparing more traditional polyvinyl chloride plastic pocket is improved.
Detect example 2
Above-mentioned obtained paper-plastic stick is placed in 25 DEG C of open environment with food bag A1-A5 and D1-D6, and air is wet Spend for 8g water/m3, total plate count (n/cfug is detected by national standard GB 4789.2-2010 method after 7 days-1)。
Learnt according to testing result：The paper-plastic stick provided in the present invention is respectively provided with excellent biology with food bag A1-A5 Degradation property, and it at least improves more than 60% compared to the degradation speed of more traditional polyvinyl chloride plastic film, it is optimal Degradation speed, which improves, reaches 65%.In addition, the degradation speed of plastic sheeting made of A1-A3 is better than A4-A5.Illustrate the present invention Middle offer is preferably carried out mode and can more effectively improve the degradation speed of plastics.
In addition, the degradation speed that paper-plastic stick food bag is made in comparative example 1-6 compares more traditional igelite The solution speed of film, which improves, is below 40%, i.e., substantially be not as high as A1-A5 degradation rate.The skill provided in the present invention is provided Herbaceous plant, chitosan, chitin fiber, sodium alginate, ferric stearate and nano-titanium oxide for being added in art scheme etc. can Effectively improve the degradation speed of plastic products.
In addition, detection example 2 testing result represent, the invention provides paper-plastic stick with food bag also have it is excellent Anti-microbial property, it is adapted to widely use packaging for foodstuff etc..
The preferred embodiment of the present invention described in detail above, still, the present invention are not limited in above-mentioned embodiment Detail, in the range of the technology design of the present invention, a variety of simple variants can be carried out to technical scheme, this A little simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally The thought of invention, it should equally be considered as content disclosed in this invention.

Claims (10)

  1. A kind of 1. preparation method of paper-plastic stick food bag, it is characterised in that including：
    By low density polyethylene (LDPE), polyurethane resin, filler, ethyl acetate, vinyltrimethoxy silane, tricresyl phosphate and The trade mark is that KH570 silane coupler is kneaded, so that micelle is made；
    The micelle is added in extruder and carries out extrusion molding, paper-plastic stick film is made in processing；
    The paper-plastic stick is heated with film and is coated on the surface of brown paper to form plastic layer, shaping so that paper is made Mould complex food bag；
    Wherein, the filler by bark, herbaceous plant, chitosan, chitin fiber, diatomite, calcium stearate, sodium alginate, Kaolin, ferric stearate and nano-titanium oxide are made.
  2. 2. preparation method according to claim 1, wherein, feeding section that the extruder includes being sequentially connected, stage casing and Extruder head, and the operating temperature of the extruder is：100-110 DEG C of feeding section, 120-130 DEG C of stage casing, extruder head 185- 195℃。
  3. 3. preparation method according to claim 1, wherein, the mixing at least meets following condition：Temperature is 120-150 DEG C, and/or the time is 2-4h.
  4. 4. according to the preparation method described in any one in claim 1-3, wherein, what the processing included carrying out successively blows Swollen, traction, printing and winding；
    Blow-up ratio is that draw ratio is 8-9 in 3-4, and/or the procedure of processing in the procedure of processing.
  5. 5. preparation method according to claim 4, wherein, low density polyethylene (LDPE), polyurethane resin, filler, ethyl acetate, The weight ratio for the silane coupler that vinyltrimethoxy silane, tricresyl phosphate and the trade mark are KH570 is 100：15-20： 10-15：5-10：1-5：3-5：3-5.
  6. 6. preparation method according to claim 1, wherein, the filler is made by following methods：
    It is made mixed after bark, herbaceous plant, chitosan, chitin fiber and diatomite are carried out into the first mixing, the first heat treatment Compound M1；
    Calcium stearate, sodium alginate, kaolin, ferric stearate and nano-titanium oxide are added in the mixture M 1 and carry out Two mixing, second heat treatment after, cool drying, ground sieve series obtain the paper-plastic stick plastic filler；
    Wherein, the temperature of second heat treatment is higher than 65-70 DEG C of the temperature of the described first heat treatment.
  7. 7. preparation method according to claim 6, the temperature of first heat treatment is 100-110 DEG C.
  8. 8. preparation method according to claim 6, wherein, the time of first heat treatment is 8-12h；
    The time of second heat treatment is 2-4h；
    First mixing, the condition of the second mixing are each stood alone as：Rotating speed is 3000-5000rpm, time 1-1.5h.
  9. 9. preparation method according to claim 6, wherein, the bark, herbaceous plant, chitosan, chitin fiber, silicon Diatomaceous earth, calcium stearate, sodium alginate, kaolin, the weight ratio of ferric stearate and nano-titanium oxide are 100：20-30：3-6：5- 10：10-15：3-5：1-3：2-4：3-6：0.5-1.1；
    The herbaceous plant is the one or more in the tuber of dwarf lilyturf, folium isatidis, peppermint, the fruit of Chinese magnoliavine, wormwood and American aloe.
  10. 10. paper-plastic stick food bag made from the preparation method in a kind of 1-9 as claim described in any one.
CN201711131397.8A 2017-11-15 2017-11-15 Paper-plastic stick food bag and preparation method thereof Withdrawn CN107826461A (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3983290A (en) * 1974-09-03 1976-09-28 Stauffer Chemical Company Fire retardant polyvinyl chloride containing compositions
CN101148289A (en) * 2006-09-19 2008-03-26 宜兴市裕隆环保有限公司 Suspending porous biological carrier and preparation
US20080160264A1 (en) * 2006-12-27 2008-07-03 Melatone, Ltd. Resin decoration panel impregnated with silver nano solution
CN105924735A (en) * 2016-06-08 2016-09-07 铜陵方正塑业科技有限公司 Labile paper-plastic composite bag and method of preparation for same
CN106012668A (en) * 2016-06-17 2016-10-12 铜陵方正塑业科技有限公司 Abrasion-resistant paper-plastic composite bag and preparation method thereof
CN106087504A (en) * 2016-06-17 2016-11-09 铜陵方正塑业科技有限公司 Antibacterial food bag and preparation method thereof
CN107217534A (en) * 2017-06-22 2017-09-29 芜湖蓝天工程塑胶有限公司 Train paper-plastic stick refuse bag and preparation method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3983290A (en) * 1974-09-03 1976-09-28 Stauffer Chemical Company Fire retardant polyvinyl chloride containing compositions
CN101148289A (en) * 2006-09-19 2008-03-26 宜兴市裕隆环保有限公司 Suspending porous biological carrier and preparation
US20080160264A1 (en) * 2006-12-27 2008-07-03 Melatone, Ltd. Resin decoration panel impregnated with silver nano solution
CN105924735A (en) * 2016-06-08 2016-09-07 铜陵方正塑业科技有限公司 Labile paper-plastic composite bag and method of preparation for same
CN106012668A (en) * 2016-06-17 2016-10-12 铜陵方正塑业科技有限公司 Abrasion-resistant paper-plastic composite bag and preparation method thereof
CN106087504A (en) * 2016-06-17 2016-11-09 铜陵方正塑业科技有限公司 Antibacterial food bag and preparation method thereof
CN107217534A (en) * 2017-06-22 2017-09-29 芜湖蓝天工程塑胶有限公司 Train paper-plastic stick refuse bag and preparation method thereof

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