CN106928602A - A kind of water-soluble plastic thin film and preparation method thereof - Google Patents
A kind of water-soluble plastic thin film and preparation method thereof Download PDFInfo
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- CN106928602A CN106928602A CN201511032855.3A CN201511032855A CN106928602A CN 106928602 A CN106928602 A CN 106928602A CN 201511032855 A CN201511032855 A CN 201511032855A CN 106928602 A CN106928602 A CN 106928602A
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- water
- polyvinyl alcohol
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- thin film
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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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L29/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
- C08L29/02—Homopolymers or copolymers of unsaturated alcohols
- C08L29/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- 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
- C08J2329/00—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 at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
- C08J2329/02—Homopolymers or copolymers of unsaturated alcohols
- C08J2329/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- 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
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three 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
- C08L2205/03—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
Abstract
The present invention relates to a kind of plastic sheeting and preparation method thereof, specifically, it is related to a kind of water-soluble plastic thin film and preparation method thereof.It is characterized in that it is made up of the raw material of following portions by weight：Polyvinyl alcohol 10~20, plasticizer 1~3.5, lubricant 1~5, levelling agent 0.5~1, demulsifier 3~5, antioxidant 0.3~1, colouring agent 0.1~0.5, prodegradant 2~6, water 100；Water-soluble plastic thin film of the present invention, it is nonpoisonous and tasteless, even if being eaten by mistake by people or livestock, can also dissolve in abdomen, excreted with excrement, without any bad reflection.The mechanical property of film is good, with tensile strength and elongation at break high；Water soluble characteristic is excellent, and dissolution velocity is fast；And its low in raw material price, preparation cost is low, and preparation process is simple is easy to operate, with practical value higher, cannot be only used for agricultural mulching, industrial and agricultural products export packing, it may also be used for food, medicine, the packaging of Special Products and daily life, shopping, fruit freshness preserving etc..
Description
Technical field
The present invention relates to a kind of plastic sheeting and preparation method thereof, specifically, it is related to a kind of water-soluble plastic thin
Film and preparation method thereof.
Background technology
Plastic sheeting is widely used in people's production, the multiple fields of life, and it is convenient and material benefit to bring
Meanwhile, the difficult degradation of plastic sheeting also causes severe contamination to environment for the survival of mankind.For eliminate with
The white pollution of day all increasings, various light degradation, biodegradation, the double down solution of photo-biological, water-soluble plastic thin film
Arisen at the historic moment Deng degradable films.Wherein water-soluble plastic thin film with its have degraded it is thorough, widely used,
Safe and convenient to use the features such as and turn into the first-selection of environment-friendly type plastic film.The water solubility of current development and application
Plastic sheeting product, price is generally higher, the combination property such as solubization, physics, mechanics, technique of product
It need further raising.The performance of water-soluble film be by the result of its each component comprehensive function, therefore how
From suitable auxiliary agent, optimizing raw material proportioning so as to reduce product cost, improve the combination property of film as mesh
The focus of preceding research.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of water-soluble plastic thin film, with mechanical property it is good,
Dissolution velocity is fast, preparation process is simple, the low feature of product cost.
Technical scheme is as follows：
A kind of water-soluble plastic thin film, it is characterised in that it is made up of the raw material of following portions by weight：
Polyvinyl alcohol 10~20,
Plasticizer 1~3.5,
Lubricant 1~5,
Levelling agent 0.5~1,
Demulsifier 3~5,
Antioxidant 0.3~1,
Colouring agent 0.1~0.5,
Prodegradant 2~6,
Water 100；
The polyvinyl alcohol is complete alcoholysis type polyvinyl alcohol or partial alcoholysis type polyvinyl alcohol；
The plasticizer is butyl stearate, polyethylene glycol or their any combination；
The lubricant is ethylene glycol, glycerine, maltitol or their any combination；
The levelling agent is gelatin, gelatine, aqueous levelling agent or their any combination；
The demulsifier is industrial alcohol, propanediol polyoxypropylene APEO or their any combination；
The antioxidant is ascorbic acid, sodium ascorbate, Tea Polyphenols or their any combination；
The colouring agent is titanium dioxide, fluorescent whitening agent or their any combination；
The prodegradant is hydroxyethyl cellulose, hydroxypropyl cellulose, yellow starch gum, white dextrin or their any group
Close.
The complete alcoholysis type polyvinyl alcohol can be PVA 24-88.
The partial alcoholysis type polyvinyl alcohol can be PVA 26-99.
The invention also discloses the preparation method of the water-soluble plastic thin film, comprise the following steps：
(1) pure water that will be measured is added in normal-pressure reaction kettle, starts agitator, and the polyvinyl alcohol that will be weighed up blows slowly
Add in reactor, stirred in intensification while charging；
(2) demulsifier is added after 5~10min is stirred, and then adds plasticizer；
(3) added after mixing in proportion lubricant, levelling agent, antioxidant, colouring agent, prodegradant anti-
Answer in kettle, control temperature of reaction kettle stirs 30~40min at 90~110 DEG C；
(4) the solution slurry pump being made is squeezed into 70~80 DEG C of hold-up tank, stands 20~30min of froth breaking；
(5) gained sizing material is sprayed into masking using coating machine, spraying temperature is 70~80 DEG C.
The number of times of the stirring can be 60~90 revs/min, and the speed of intensification can be 2~3 DEG C/min.
Beneficial effects of the present invention
Water-soluble plastic thin film of the present invention, it is nonpoisonous and tasteless, even if being eaten by mistake by people or livestock, can also dissolve in abdomen,
Excreted with excrement, without any bad reflection.The mechanical property of film is good, with tensile strength high and
Elongation at break；Water soluble characteristic is excellent, and dissolution velocity is fast；And its low in raw material price, preparation cost is low,
Preparation process is simple is easy to operate, with practical value higher, cannot be only used for agricultural mulching, industrial or agricultural and produces
Product export packing, it may also be used for food, medicine, the packaging of Special Products and daily life, shopping, fruit
It is fresh-keeping etc..
Specific embodiment
Embodiment 1
Each raw material is weighed by following weight：
PVA 24-88 10kg、
Butyl stearate 1kg,
Ethylene glycol 1kg,
Gelatin 0.5kg,
Industrial alcohol 3kg,
Ascorbic acid 0.3kg,
Titanium dioxide 0.1kg,
Yellow starch gum 2kg,
Water 100kg.
First by 100kg pure water addition normal-pressure reaction kettle, agitator is opened, then by 10kg polyvinyl alcohol
PVA 24-88 are blown slowly in addition reactor, and charging is stirred in intensification simultaneously, stir 80 revs/min of number of times, are risen
2 DEG C/the min of speed of temperature；Industrial alcohol 3kg is added after 10min is stirred, butyl stearate is and then added
1kg；Then by ethylene glycol 1kg, gelatin 0.5kg, ascorbic acid 0.3kg, titanium dioxide 0.1kg, yellow starch gum
2kg is added in reactor after being mixed, and temperature of reaction kettle is controlled at 100 DEG C, stirs 40min；It is molten what is be made
Liquid slurry pump is squeezed into 80 DEG C of hold-up tank, stands froth breaking 30min；Gained sizing material is applied using coating machine
Cloth is made plastic sheeting, and coating temperature is controlled at 80 DEG C.
Plastic sheeting is checked through national plastic products quality Supervision Test Center as obtained in the present embodiment, average thick
It is 0.037mm to spend, and tensile strength is longitudinal direction 37.8MPa, transverse direction 39.5MPa, and elongation at break is longitudinal direction
290%th, horizontal 285%, it is 10 that impact strength detection is not broken sample number, and degradation property is completely molten
Solution, its technical indicator meets the technical requirements of A class high-class products in technical indicator Q/XPS 01-2006.Its
In degradation property test method carried out to sample be：The 0.2g that materialses is placed in iodine flask, adds 50mL to steam
Distilled water, is heated to the 5min that seethes with excitement and keep, and then stands 5min, observes dissolved state.
Embodiment 2
Each raw material is weighed by following weight：
PVA 26-99 20kg、
Polyethylene glycol 3.5kg,
Maltitol 5kg,
Gelatine 1kg,
Industrial alcohol 5kg,
Tea Polyphenols 1kg,
Fluorescent whitening agent 0.5kg,
White dextrin 6kg,
Water 100kg.
First by 100kg pure water addition normal-pressure reaction kettle, agitator is opened, then by 20kg PVA 26-99
Slowly add in reactor, charging is stirred in intensification simultaneously, stir 80 revs/min of number of times, 2 DEG C of the speed of intensification
/min；Industrial alcohol 6kg is added after 10min is stirred, polyethylene glycol 3.5kg is and then added；Then will
After maltitol 5kg, gelatine 1kg, Tea Polyphenols 1kg, fluorescent whitening agent 0.5kg, white dextrin 6kg are mixed
Add in reactor, temperature of reaction kettle is controlled at 100 DEG C, stir 40min；The solution being made slurry pump
Squeeze into 80 DEG C of hold-up tank, stand froth breaking 30min；Gained sizing material is made plastics using coating machine spraying
Film, spraying temperature is controlled at 80 DEG C.
Plastic sheeting is checked through national plastic products quality Supervision Test Center as obtained in the present embodiment, average thick
It is 0.025mm to spend, and tensile strength is longitudinal direction 25.6MPa, transverse direction 23.8MPa, and elongation at break is longitudinal direction
193%th, horizontal 140%, to be completely dissolved, its technical indicator meets technology and refers to degradation property
The technical requirements of B classes high-class product in Q/XPS 01-2006.Degradation property test method wherein is carried out to sample
For：The 0.2g that materialses is placed in iodine flask, adds 25 DEG C of distilled water 50mL, acutely shakes 1min, is stood
5min, observes dissolved state.Practice have shown that, the plastic sheeting as obtained in the present embodiment, when weather spots,
As long as by the several seconds, product just can all water-soluble degradeds；Tossing also can be in number to rubbish and any field chance water
All degraded is dissolved in it, noresidue.
Embodiment 3
Each raw material is weighed by following weight：
PVA 24-88 15kg、
Butyl stearate 2.25kg,
Ethylene glycol 3kg,
Gelatin 0.75kg,
Industrial alcohol 4kg,
Ascorbic acid 0.65kg,
Titanium dioxide 0.3kg,
Yellow starch gum 4kg,
Water 100kg.
First by 100kg pure water addition normal-pressure reaction kettle, agitator is opened, then by 15kg polyvinyl alcohol
PVA 24-88 are blown slowly in addition reactor, and charging is stirred in intensification simultaneously, stir 80 revs/min of number of times, are risen
2 DEG C/the min of speed of temperature；Industrial alcohol 4kg is added after 10min is stirred, butyl stearate is and then added
2.25kg；Then by ethylene glycol 3kg, gelatin 0.75kg, ascorbic acid 0.65kg, titanium dioxide 0.3kg,
Yellow starch gum 4kg is added in reactor after being mixed, and temperature of reaction kettle is controlled at 100 DEG C, stirs 40min；System
Into solution slurry pump squeeze into 80 DEG C of hold-up tank, stand froth breaking 30min；By gained sizing material using painting
The coating of cloth machine is made plastic sheeting, and coating temperature is controlled at 80 DEG C.
Plastic sheeting is checked through national plastic products quality Supervision Test Center as obtained in the present embodiment, average thick
It is 0.045mm to spend, and tensile strength is longitudinal direction 45.8MPa, transverse direction 48.5MPa, and elongation at break is longitudinal direction
390%th, horizontal 385%, it is 10 that impact strength detection is not broken sample number, and degradation property is completely molten
Solution, its technical indicator meets the technical requirements of A class high-class products in technical indicator Q/XPS 01-2006.Its
In degradation property test method carried out to sample be：The 0.2g that materialses is placed in iodine flask, adds 50mL to steam
Distilled water, is heated to the 5min that seethes with excitement and keep, and then stands 5min, observes dissolved state.
Claims (5)
1. a kind of water-soluble plastic thin film, it is characterised in that it is made up of the raw material of following portions by weight：It is poly-
Vinyl alcohol 10~20, plasticizer 1~3.5, lubricant 1~5, levelling agent 0.5~1, demulsifier 3~5,
Antioxidant 0.3~1, colouring agent 0.1~0.5, prodegradant 2~6, water 100；The polyvinyl alcohol
It is complete alcoholysis type polyvinyl alcohol or partial alcoholysis type polyvinyl alcohol；The plasticizer is butyl stearate, gathers
Ethylene glycol or their any combination；The lubricant be ethylene glycol, glycerine, maltitol or they
Any combination；The levelling agent is gelatin, gelatine, aqueous levelling agent or their any combination；It is described broken
Emulsion is industrial alcohol, propanediol polyoxypropylene APEO or their any combination；It is described anti-oxidant
Agent is ascorbic acid, sodium ascorbate, Tea Polyphenols or their any combination；The colouring agent be titanium dioxide,
Fluorescent whitening agent or their any combination；The prodegradant be hydroxyethyl cellulose, hydroxypropyl cellulose,
Yellow starch gum, white dextrin or their any combination.
2. a kind of water-soluble plastic thin film according to claim 1, it is characterised in that：The complete alcoholysis
Type polyvinyl alcohol is PVA24-88.
3. a kind of water-soluble plastic thin film according to claim 1, it is characterised in that：The partial alcoholysis
Type polyvinyl alcohol is PVA26-99.
4. the preparation method of plastic sheeting as claimed in claim 1, comprises the following steps：(1) will measure
Pure water is added in normal-pressure reaction kettle, starts agitator, and the polyvinyl alcohol that will be weighed up blows slowly in addition reactor,
Stirred in intensification while charging；(2) demulsifier is added after 5~10min is stirred, and then adds and increase
Modeling agent；(3) after lubricant, levelling agent, antioxidant, colouring agent, prodegradant being mixed in proportion
Add in reactor, control temperature of reaction kettle stirs 30~40min at 90~110 DEG C；(4) being made
Solution slurry pump is squeezed into 70~80 DEG C of hold-up tank, stands 20~30min of froth breaking；(5) by gained sizing material
Masking is sprayed using coating machine, spraying temperature is 70~80 DEG C.
5. the preparation method of plastic sheeting according to claim 4, it is characterised in that：The stirring time
Number is 60~90 revs/min, and the speed of intensification is 2~3 DEG C/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511032855.3A CN106928602A (en) | 2015-12-30 | 2015-12-30 | A kind of water-soluble plastic thin film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511032855.3A CN106928602A (en) | 2015-12-30 | 2015-12-30 | A kind of water-soluble plastic thin film and preparation method thereof |
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| CN106928602A true CN106928602A (en) | 2017-07-07 |
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| CN201511032855.3A Pending CN106928602A (en) | 2015-12-30 | 2015-12-30 | A kind of water-soluble plastic thin film and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110358236A (en) * | 2019-08-02 | 2019-10-22 | 张同庆 | The refuse bag of high molecular material and preparation method thereof based on water-soluble and degradable characteristic |
| CN113045847A (en) * | 2021-01-15 | 2021-06-29 | 山东优化新材料有限公司 | Water-soluble packaging film for packaging concentrated laundry detergent |
-
2015
- 2015-12-30 CN CN201511032855.3A patent/CN106928602A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110358236A (en) * | 2019-08-02 | 2019-10-22 | 张同庆 | The refuse bag of high molecular material and preparation method thereof based on water-soluble and degradable characteristic |
| CN113045847A (en) * | 2021-01-15 | 2021-06-29 | 山东优化新材料有限公司 | Water-soluble packaging film for packaging concentrated laundry detergent |
| CN113045847B (en) * | 2021-01-15 | 2023-03-10 | 山东优化新材料有限公司 | Water-soluble packaging film for packaging concentrated laundry detergent |
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| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170707 |
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| WD01 | Invention patent application deemed withdrawn after publication |