CN109651678A - A kind of high-strength environment-friendly polybag and its production method - Google Patents
A kind of high-strength environment-friendly polybag and its production method Download PDFInfo
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- CN109651678A CN109651678A CN201811305265.7A CN201811305265A CN109651678A CN 109651678 A CN109651678 A CN 109651678A CN 201811305265 A CN201811305265 A CN 201811305265A CN 109651678 A CN109651678 A CN 109651678A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2397/00—Characterised by the use of lignin-containing materials
- C08J2397/02—Lignocellulosic material, e.g. wood, straw or bagasse
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2403/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
- C08J2403/02—Starch; Degradation products thereof, e.g. dextrin
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- 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
- C08J2423/10—Homopolymers or copolymers of propene
- C08J2423/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2433/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2433/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers esters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/08—Oxygen-containing compounds
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- Manufacturing & Machinery (AREA)
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- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
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Abstract
The invention discloses a kind of high-strength environment-friendly polybag and its production methods, are prepared by the raw material of following parts by weight: 20-30 parts of low density polyethylene (LDPE), 10-15 parts of low-density polylactic acid, 10-15 parts of acrylic resin, 10-20 parts of plant amylum, 20-30 parts of straw, 10-20 parts of calcium carbonate crystal whisker, 10-20 parts of filler, 5-8 parts of polypropylene compatilizer, 3-5 parts of silane coupling agent, 3-5 parts of stabilizer, 10-14 parts of setting agent, 8-10 parts of antibacterial matrices, 5-10 parts of plasticizer.The present invention is designed through scientific and reasonable formula, and low-density polylactic acid and low density polyethylene (LDPE) are added in making material to be higher than 55 DEG C or meeting automatic classifying under the action of oxygen-enriched and microorganism, and the polylactic acid film after discarding is in the environment after discarded；The anti-biotic materials such as potassium sorbate, antibacterial matrices are added, polybag has good antibacterial functions after manufacturing, and the production cost of the polybag is low, is suitble to promote.
Description
Technical field
The present invention relates to polybag technical fields, and in particular to a kind of high-strength environment-friendly polybag and its production method.
Background technique
It is a kind of good packing timber with the polybag of polyethylene production is light, thin, waterproof, intensity is larger, at low cost
Material, the use of polybag bring great convenience to people's lives, keep the dosage of polybag increasing, with giving up later
It abandons polybag be not easily recycled, be not degradable, a large amount of waste plastic bag has become one of current contamination environment and serious asks
Topic.In order to mitigate pollution of the polybag to environment, people have developed some degradable plastic bags.
Existing degradable plastic bag, constituent have film-grade plastics and can cause the component that plastics generate degradation,
Such as starch, calcium carbonate, this degradable plastic bag are addition type degradable plastic bags, and addition type degradable plastic bag is to improve
Environment has played certain positive effect.But the processing performance of this degradable plastic bag processing is bad, manufactured polybag produces
Product physical property and appearance are poor；In addition, the degradation of this degradable plastic bag needs certain rigid condition.
We such as go shopping, electrical package, food packaging etc. with polybag all the time in we live
Deng all having much using the type of polybag, polybag, common food plastic bag is mostly that polyethylene film is made, this is thin
Film is nontoxic, therefore can be used for containing food.It is made there are also a kind of film of polyvinyl chloride, polyvinyl chloride itself is also non-toxic, but root
The additive being added according to the purposes of film is often the substance being harmful to the human body, and has certain toxicity.So this kind of film
And the polybag done by the film should not be used to contain food.So we need one kind that can prevent bacterium from generating but also dropping
The polybag of solution.
Summary of the invention
The purpose of the present invention is to provide a kind of high-strength environment-friendly polybags, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the invention provides the following technical scheme:
A kind of degradable polybag of high-strength environment-friendly, is prepared: low density polyethylene (LDPE) 20-30 by the raw material of following parts by weight
Part, 10-15 parts of low-density polylactic acid, 10-15 parts of acrylic resin, 10-20 parts of plant amylum, 20-30 parts of straw, carbonic acid
10-20 parts of calcium pyroborate, 10-20 parts of filler, 5-8 parts of polypropylene compatilizer, 3-5 parts of silane coupling agent, 3-5 parts of stabilizer, sizing
10-14 parts of agent, 8-10 parts of antibacterial matrices, 5-10 parts of plasticizer.
A kind of production method of high-strength environment-friendly polybag as described in claim 1, includes the following steps:
(1) above-mentioned raw materials will be put into plastics processing mill, the hot material that 18-25min is plasticized is heated at a temperature of 130-160 DEG C；
(2) hot material of above-mentioned plasticizing is delivered to extruder, extruder central feeding rotating die head temperature by screw rod conveyor
It is 150-180 DEG C, is formed by blow extrusion, overtemperature is automatically air-cooled, obtains plastic foil；
(3) plastic foil cut, folded, edge sealing forms polybag.
The filler is the mixture that wood powder, clay and montmorillonite are mixed with 2~3:1~2:1 mass ratio.
It according to weight ratio is that 1:1 is formulated that the stabilizer, which is magnalium hydrotalcite and carboxymethyl cellulose,.
The tensile strength of the polybag is 5~8MPa, and degradation rate is 90% or more.
Compared with prior art, the beneficial effects of the present invention are: the present invention is designed through scientific and reasonable formula, in production material
Low-density polylactic acid and low density polyethylene (LDPE) are added in material automatically higher than 55 DEG C or under the action of oxygen-enriched and microorganism
It decomposes, the polylactic acid film after discarding is in the environment after discarded；The anti-biotic materials such as potassium sorbate, antibacterial matrices are added, are making
Polybag has good antibacterial functions after work, and the production cost of the polybag is low, is suitble to promote.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
Embodiment 1
A kind of degradable polybag of high-strength environment-friendly, is prepared by the raw material of following parts by weight: 20 parts of low density polyethylene (LDPE),
10 parts of low-density polylactic acid, 10 parts of acrylic resin, 10 parts of plant amylum, 20 parts of straw, 10 parts of calcium carbonate crystal whisker, filler
10 parts, 5 parts of polypropylene compatilizer, 3 parts of silane coupling agent, 3 parts of stabilizer, 10 parts of setting agent, 8 parts of antibacterial matrices, plasticizer 5
Part.
A kind of production method of high-strength environment-friendly polybag as described in claim 1, includes the following steps:
(1) above-mentioned raw materials will be put into plastics processing mill, the hot material that 19min is plasticized is heated at a temperature of 135 DEG C；
(2) hot material of above-mentioned plasticizing is delivered to extruder, extruder central feeding rotating die head temperature by screw rod conveyor
It is 155 DEG C, is formed by blow extrusion, overtemperature is automatically air-cooled, obtains plastic foil；
(3) plastic foil cut, folded, edge sealing forms polybag.
The filler is the mixture that wood powder, clay and montmorillonite are mixed with the mass ratio of 2.2:1.2:1.
It according to weight ratio is that 1:1 is formulated that the stabilizer, which is magnalium hydrotalcite and carboxymethyl cellulose,.
The tensile strength of the polybag is 5MPa, and degradation rate is 90% or more.
Embodiment 2
A kind of degradable polybag of high-strength environment-friendly, is prepared by the raw material of following parts by weight: 30 parts of low density polyethylene (LDPE),
15 parts of low-density polylactic acid, 20 parts of plant amylum, 30 parts of straw, 20 parts of calcium carbonate crystal whisker, is filled out 15 parts of acrylic resin
Expect 20 parts, 8 parts of polypropylene compatilizer, 5 parts of silane coupling agent, 5 parts of stabilizer, 14 parts of setting agent, 10 parts of antibacterial matrices, plasticizer
10 parts.
A kind of production method of high-strength environment-friendly polybag as described in claim 1, includes the following steps:
(1) above-mentioned raw materials will be put into plastics processing mill, the hot material that 22min is plasticized is heated at a temperature of 130-160 DEG C；
(2) hot material of above-mentioned plasticizing is delivered to extruder, extruder central feeding rotating die head temperature by screw rod conveyor
It is 165 DEG C, is formed by blow extrusion, overtemperature is automatically air-cooled, obtains plastic foil；
(3) plastic foil cut, folded, edge sealing forms polybag.
The filler is the mixture that wood powder, clay and montmorillonite are mixed with the mass ratio of 2.5:1.5:1.
It according to weight ratio is that 1:1 is formulated that the stabilizer, which is magnalium hydrotalcite and carboxymethyl cellulose,.
The tensile strength of the polybag is 7MPa, and degradation rate is 90% or more.
Embodiment 3
A kind of degradable polybag of high-strength environment-friendly, is prepared by the raw material of following parts by weight: 25 parts of low density polyethylene (LDPE),
12 parts of low-density polylactic acid, 15 parts of plant amylum, 25 parts of straw, 16 parts of calcium carbonate crystal whisker, is filled out 12 parts of acrylic resin
Expect 15 parts, 7 parts of polypropylene compatilizer, 4 parts of silane coupling agent, 4 parts of stabilizer, 12 parts of setting agent, 9 parts of antibacterial matrices, plasticizer 7
Part.
A kind of production method of high-strength environment-friendly polybag as described in claim 1, includes the following steps:
(1) above-mentioned raw materials will be put into plastics processing mill, the hot material that 24min is plasticized is heated at a temperature of 155 DEG C；
(2) hot material of above-mentioned plasticizing is delivered to extruder, extruder central feeding rotating die head temperature by screw rod conveyor
It is 175 DEG C, is formed by blow extrusion, overtemperature is automatically air-cooled, obtains plastic foil；
(3) plastic foil cut, folded, edge sealing forms polybag.
The filler is the mixture that wood powder, clay and montmorillonite are mixed with the mass ratio of 2.8:1.8:1.
It according to weight ratio is that 1:1 is formulated that the stabilizer, which is magnalium hydrotalcite and carboxymethyl cellulose,.
The tensile strength of the polybag is 8MPa, and degradation rate is 90% or more.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the exemplary embodiment, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit require rather than it is described illustrate to limit, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.In addition, it should be understood that although this specification is described in terms of embodiments, but it is not each
Embodiment only contains an independent technical solution, and this description of the specification is merely for the sake of clarity, this field
Technical staff should consider the specification as a whole, and the technical solutions in the various embodiments may also be suitably combined, form this
The other embodiments that field technical staff is understood that.
Claims (5)
1. a kind of high-strength environment-friendly polybag, which is characterized in that be prepared by the raw material of following parts by weight: low density polyethylene
20-30 parts of alkene, 10-15 parts of low-density polylactic acid, 10-15 parts of acrylic resin, 10-20 parts of plant amylum, straw 20-30
Part, 10-20 parts of calcium carbonate crystal whisker, 10-20 parts of filler, 5-8 parts of polypropylene compatilizer, 3-5 parts of silane coupling agent, stabilizer 3-5
Part, 10-14 parts of setting agent, 8-10 parts of antibacterial matrices, 5-10 parts of plasticizer.
2. a kind of production method of high-strength environment-friendly polybag as described in claim 1, which is characterized in that including walking as follows
It is rapid:
(1) above-mentioned raw materials will be put into plastics processing mill, the hot material that 18-25min is plasticized is heated at a temperature of 130-160 DEG C；
(2) hot material of above-mentioned plasticizing is delivered to extruder, extruder central feeding rotating die head temperature by screw rod conveyor
It is 150-180 DEG C, is formed by blow extrusion, overtemperature is automatically air-cooled, obtains plastic foil；
(3) plastic foil cut, folded, edge sealing forms polybag.
3. a kind of high-strength environment-friendly polybag according to claim 1 or 2 and its production method, which is characterized in that described
Filler is the mixture that wood powder, clay and montmorillonite are mixed with 2~3:1~2:1 mass ratio.
4. a kind of high-strength environment-friendly polybag according to claim 1 or 2 and its production method, which is characterized in that described
It according to weight ratio is that 1:1 is formulated that stabilizer, which is magnalium hydrotalcite and carboxymethyl cellulose,.
5. a kind of high-strength environment-friendly polybag according to claim 1 or 2 and its production method, which is characterized in that described
The tensile strength of polybag is 5~8MPa, and degradation rate is 90% or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811305265.7A CN109651678A (en) | 2018-10-31 | 2018-10-31 | A kind of high-strength environment-friendly polybag and its production method |
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| CN201811305265.7A CN109651678A (en) | 2018-10-31 | 2018-10-31 | A kind of high-strength environment-friendly polybag and its production method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112143079A (en) * | 2020-09-25 | 2020-12-29 | 福建琦峰科技有限公司 | Antibacterial breathable film and preparation method thereof |
| CN112812377A (en) * | 2021-02-25 | 2021-05-18 | 绍兴上虞伟强包装有限公司 | High-strength medical plastic bag and preparation process thereof |
| CN113150398A (en) * | 2021-05-19 | 2021-07-23 | 上海华杰生态环境工程有限公司 | Easily-degradable environment-friendly plastic bag for intelligent toilet and preparation method thereof |
| CN113372635A (en) * | 2021-04-12 | 2021-09-10 | 昆山金盟塑料薄膜有限公司 | Preparation method of degradable ultrathin plastic film |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014089562A1 (en) * | 2012-12-09 | 2014-06-12 | Icast Plastics, Llc | Stone based copolymer substrate |
| CN105838098A (en) * | 2016-04-14 | 2016-08-10 | 太仓市源创包装材料厂 | High-strength green plastic bag used for packaging |
| CN105860558A (en) * | 2016-04-14 | 2016-08-17 | 太仓市源创包装材料厂 | Preparation method of high-strength environment-friendly plastic bag for packaging |
| US20170164702A1 (en) * | 2015-12-15 | 2017-06-15 | Broadway Holding II, LLC | Product and method for a plastic bag comprising inorganic materials |
| CN107723841A (en) * | 2017-10-19 | 2018-02-23 | 孙振辉 | A kind of sun-proof anti-aging fishing net and preparation method |
| CN107880346A (en) * | 2016-09-30 | 2018-04-06 | 天长市地震办公室 | The degradable polybag of antibacterial |
-
2018
- 2018-10-31 CN CN201811305265.7A patent/CN109651678A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014089562A1 (en) * | 2012-12-09 | 2014-06-12 | Icast Plastics, Llc | Stone based copolymer substrate |
| US20170164702A1 (en) * | 2015-12-15 | 2017-06-15 | Broadway Holding II, LLC | Product and method for a plastic bag comprising inorganic materials |
| CN105838098A (en) * | 2016-04-14 | 2016-08-10 | 太仓市源创包装材料厂 | High-strength green plastic bag used for packaging |
| CN105860558A (en) * | 2016-04-14 | 2016-08-17 | 太仓市源创包装材料厂 | Preparation method of high-strength environment-friendly plastic bag for packaging |
| CN107880346A (en) * | 2016-09-30 | 2018-04-06 | 天长市地震办公室 | The degradable polybag of antibacterial |
| CN107723841A (en) * | 2017-10-19 | 2018-02-23 | 孙振辉 | A kind of sun-proof anti-aging fishing net and preparation method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112143079A (en) * | 2020-09-25 | 2020-12-29 | 福建琦峰科技有限公司 | Antibacterial breathable film and preparation method thereof |
| CN112812377A (en) * | 2021-02-25 | 2021-05-18 | 绍兴上虞伟强包装有限公司 | High-strength medical plastic bag and preparation process thereof |
| CN113372635A (en) * | 2021-04-12 | 2021-09-10 | 昆山金盟塑料薄膜有限公司 | Preparation method of degradable ultrathin plastic film |
| CN113150398A (en) * | 2021-05-19 | 2021-07-23 | 上海华杰生态环境工程有限公司 | Easily-degradable environment-friendly plastic bag for intelligent toilet and preparation method thereof |
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