CN107722435A - 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
CN107722435A
CN107722435A CN201711131395.9A CN201711131395A CN107722435A CN 107722435 A CN107722435 A CN 107722435A CN 201711131395 A CN201711131395 A CN 201711131395A CN 107722435 A CN107722435 A CN 107722435A
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paper
preparation
plastic
food bag
plastic stick
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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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    • 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
    • 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
    • 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
    • C08J2461/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
    • C08J2461/04—Condensation polymers of aldehydes or ketones with phenols only
    • C08J2461/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
    • 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
    • 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
    • C08L2203/00—Applications
    • C08L2203/16—Applications used for films
    • 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
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
    • C08L2205/16—Fibres; Fibrils
    • 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)

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

Abstract

The present invention relates to paper-plastic stick field, specifically disclose a kind of paper-plastic stick food bag and preparation method thereof, the silane coupler that low density polyethylene (LDPE), phenolic resin, filler, turpentine oil, 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, paper-plastic stick food bag is made in processing；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, filler is made by bark, herbaceous plant, chitosan, chitin fiber, diatomite, calcium stearate, sodium alginate, hydrotalcite, ferric stearate and yttrium.Each raw material sources of the food bag are abundant, simple and easy to get, and the food bag has excellent degradation 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), phenolic resin, filler, turpentine oil, 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 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, hydrotalcite, ferric stearate and yttrium 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, hydrotalcite, ferric stearate and yttrium；And first will tree in preferred embodiment The components such as skin, herbaceous plant, chitosan, chitin fiber, diatomite add calcium stearate, marine alga after carrying out the first heat treatment The components such as sour sodium, hydrotalcite, ferric stearate and yttrium, and then be further heat-treated and to be sufficiently mixed to improve respectively between each component Mutual synergy between raw material.In above-mentioned technical proposal, add bark, herbaceous plant, chitosan, chitin fiber, The components such as diatomite also assures that it has excellent mechanical performance while the degradation rate of modeling film is improved；It is stearic in addition The components such as sour calcium, sodium alginate, hydrotalcite, ferric stearate and yttrium further increase the readily degradable energy of plastic sheeting so that Be made plastic sheeting and its paper-plastic stick product environmental protection, 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), phenolic resin, filler, turpentine oil, 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 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, hydrotalcite, ferric stearate and yttrium 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, 150-180 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), phenolic resin, filler, turpentine oil, vinyl trimethoxy The weight ratio for the silane coupler that base silane, tricresyl phosphate and the trade mark are KH570 is 100：20-30：10-15：5-10：1- 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, hydrotalcite, ferric stearate and yttrium are added into progress second in the mixture M 1 to mix Close, 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 50-60 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, hydrotalcite, the weight ratio of ferric stearate and yttrium are 100：20-30：3-6：5-10： 10-15：3-5：1-3：2-4：3-6：0.5-1.1.
In addition, the bark used in the present invention can select in wide scope, but in order that obtain obtained film With more preferable readily degradable energy, the bark can be pine bark, maple skin, peach bark, apple bark, poplar bark and cypress One or more in skin.
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
Pine bark, the tuber of dwarf lilyturf, chitosan, chitin fiber and diatomite are stirred into 1.5h at 3,000 rpm, and at 110 DEG C Mixture M 1 is made in 6h after heat treatment；
Calcium stearate, sodium alginate, hydrotalcite, ferric stearate and yttrium are added in the mixture M 1, in 3000rpm After lower stirring 1.5h, cool drying, ground sieve series obtain the paper-plastic stick plastic filler after 160 DEG C of heat treatment 2h, remember Make W1；
Wherein, the pine bark, tuber of dwarf lilyturf, chitosan, chitin fiber, diatomite, calcium stearate, sodium alginate, hydrotalcite, hard The weight of resin acid iron and yttrium ratio is 100：20：3：5：3：1：3：5：3：0.5.
Preparation example 2
Peach bark, the fruit of Chinese magnoliavine, chitosan, chitin fiber and diatomite are stirred into 1.2h under 4000rpm, and 115 DEG C heat treatment after 5h be made mixture M 1；
Calcium stearate, sodium alginate, hydrotalcite, ferric stearate and yttrium are added in the mixture M 1, in 4000rpm After lower stirring 1.2h, cool drying, ground sieve series obtain the paper-plastic stick plastic filler after 170 DEG C of heat treatment 1.5h, It is denoted as W2；
Wherein, peach bark, the fruit of Chinese magnoliavine, chitosan, chitin fiber, diatomite, calcium stearate, sodium alginate, hydrotalcite, The weight of ferric stearate and yttrium ratio is 100：25：5：10：4：2：4：7：5：1.2.
Preparation example 3
Maple skin, American aloe, chitosan, chitin fiber and diatomite are stirred into 1h under 3500rpm, and at 120 DEG C Mixture M 1 is made in 4h after heat treatment；
Calcium stearate, sodium alginate, hydrotalcite, ferric stearate and yttrium are added in the mixture M 1, in 5000rpm After lower stirring 1h, cool drying, ground sieve series obtain the paper-plastic stick plastic filler after 180 DEG C of heat treatment 1h, are denoted as W3；
Wherein, maple skin, American aloe, chitosan, chitin fiber, diatomite, calcium stearate, sodium alginate, hydrotalcite, The weight of ferric stearate and yttrium 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 pine bark, the tuber of dwarf lilyturf, chitosan, chitin fiber, diatomite, calcium stearate, sodium alginate, hydrotalcite, stearic acid Mixture M 1 is made in 8h after iron and yttrium are heat-treated after being mixed together at 110 DEG C.
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 pine bark, the tuber of dwarf lilyturf, chitosan, chitin fiber, diatomite, calcium stearate, sodium alginate, hydrotalcite, stearic acid Mixture M 1 is made in 8h after iron and yttrium are heat-treated after being mixed together at 160 DEG C.
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 Yttrium.
Embodiment 1
By low density polyethylene (LDPE), phenolic resin, filler W1, turpentine oil, vinyltrimethoxy silane, tricresyl phosphate 4h is kneaded at 120 DEG C for KH570 silane coupler with the trade mark, 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, 150 DEG C of extruder head；
Wherein, the low density polyethylene (LDPE), phenolic resin, filler, turpentine oil, vinyltrimethoxy silane, tricresyl phosphate The weight ratio for the silane coupler that cresols ester and the trade mark are KH570 is 100：20：10：5：1：3：3.
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 64%.
Embodiment 2
By low density polyethylene (LDPE), phenolic resin, filler W2, turpentine oil, vinyltrimethoxy silane, tricresyl phosphate 3h is kneaded at 130 DEG C for KH570 silane coupler with the trade mark, 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, 170 DEG C of extruder head；
Wherein, the low density polyethylene (LDPE), phenolic resin, filler, turpentine oil, vinyltrimethoxy silane, tricresyl phosphate The weight ratio for the silane coupler that cresols ester and the trade mark are KH570 is 100：25：13：8：3：4：4.
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 63%.
Embodiment 3
By low density polyethylene (LDPE), phenolic resin, filler W3, turpentine oil, vinyltrimethoxy silane, tricresyl phosphate 2h is kneaded at 50 DEG C for KH570 silane coupler with the trade mark, 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, 180 DEG C of extruder head；
Wherein, the low density polyethylene (LDPE), phenolic resin, filler, turpentine oil, vinyltrimethoxy silane, tricresyl phosphate The weight ratio for the silane coupler that cresols ester and the trade mark are KH570 is 100：30：15：10：5：5：5.
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 65%.
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 50%.
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 49%.
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 39%.
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 35%.
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 33%.
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%.
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 30%.
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 31%.
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 film is improved.
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 66%.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 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), phenolic resin, filler, turpentine oil, vinyltrimethoxy silane, tricresyl phosphate and the trade mark It is kneaded for KH570 silane coupler, 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 compound food bag；
    Wherein, the filler by bark, herbaceous plant, chitosan, chitin fiber, diatomite, calcium stearate, sodium alginate, Hydrotalcite, ferric stearate and yttrium 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 150- 180℃。
  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), phenolic resin, filler, turpentine oil, ethene The weight ratio for the silane coupler that base trimethoxy silane, tricresyl phosphate and the trade mark are KH570 is 100：20-30：10- 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；
    By calcium stearate, sodium alginate, hydrotalcite, ferric stearate and yttrium be added in the mixture M 1 carry out second 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 50-60 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, hydrotalcite, the weight ratio of ferric stearate and yttrium 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.
CN201711131395.9A 2017-11-15 2017-11-15 Paper-plastic stick food bag and preparation method thereof Withdrawn CN107722435A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105924740A (en) * 2016-06-17 2016-09-07 铜陵方正塑业科技有限公司 Moisture-resistant 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
CN107236176A (en) * 2017-07-20 2017-10-10 芜湖乾凯材料科技有限公司 A kind of prepared food preservative film and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105924740A (en) * 2016-06-17 2016-09-07 铜陵方正塑业科技有限公司 Moisture-resistant 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
CN107236176A (en) * 2017-07-20 2017-10-10 芜湖乾凯材料科技有限公司 A kind of prepared food preservative film and preparation method thereof

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Application publication date: 20180223