CN106519474A - Environment-friendly heat shrinkable film with high transparency and high toughness and preparation method of heat shrinkage film - Google Patents
Environment-friendly heat shrinkable film with high transparency and high toughness and preparation method of heat shrinkage film Download PDFInfo
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- CN106519474A CN106519474A CN201611145454.3A CN201611145454A CN106519474A CN 106519474 A CN106519474 A CN 106519474A CN 201611145454 A CN201611145454 A CN 201611145454A CN 106519474 A CN106519474 A CN 106519474A
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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
- C08L25/00—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 aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/04—Homopolymers or copolymers of styrene
- C08L25/06—Polystyrene
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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
- C08J2325/00—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 aromatic carbocyclic ring; Derivatives of such polymers
- C08J2325/02—Homopolymers or copolymers of hydrocarbons
- C08J2325/04—Homopolymers or copolymers of styrene
- C08J2325/06—Polystyrene
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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
- C08J2425/00—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 aromatic carbocyclic ring; Derivatives of such polymers
- C08J2425/18—Homopolymers or copolymers of aromatic monomers containing elements other than carbon and hydrogen
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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
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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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
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
Abstract
The invention discloses an environment-friendly heat shrinkable film with high transparency and high toughness. The heat shrinkable film is prepared from raw materials in parts by weight as follows: 100-110 parts of polystyrene, 3-5 parts of calcium stearate, 1.5-2.5 parts of an antioxidant, 1.2-1.6 parts of a light stabilizer, 2.5-3.0 parts of decabrominated dipheny ethane, 2-5 parts of polystyrene sulronate, 1.0-1.4 parts of nano calcium carbonate and 0.7-1.3 parts of ethoxylated cocoamine. The invention further discloses a preparation method of the environment-friendly heat shrinkable film with high transparency and high toughness. The prepared heat shrinkable film is mainly prepared from polystyrene, meets the environmental protection requirement, has very high toughness, has the transparency superior to that of existing environment-friendly heat shrinkable films on the market, has the better packaging effect and has bright market prospect.
Description
Technical field
The present invention relates to heat-shrinkable film technology field, specifically a kind of high grade of transparency and the environmentally friendly heat shrink films of high tenacity and
Its preparation method.
Background technology
Heat shrink films are a kind of good film packing materials, are longitudinally and/or laterally drawn under elastomeric state using thin film
The energy storage stretched in the film, imitate by the memory having using the form before the bi-directionally or uni-directionally stretching that thermoplastic has
Should, the function of the form before recovering to stretch when heat is run into again is reaching packaging purpose.Heat shrink films should have good saturating
Bright property, the commodity that customer can be allowed to be immediately seen packaged are easy to customer's picking commodities.
Heat shrink films have obtained extensively should in fields such as food, medicine, beverages because of its excellent stability and safety
With.The species of heat shrink films is various, such as PE heat shrink films, PVC heat shrink films, POF heat shrink films, OPS heat shrink films etc., different
Heat shrink films there are different performances, such as OPS heat shrink films are exactly a kind of heat shrink films for meeting environmental requirement, and it is not only
Can be with recycling, even if the later trade mark of printing can be burned is transformed into the energy, due to the nonpoisonous and tasteless of it so not producing
Any harmful gass of life, therefore any pollution will not be produced.Contrary PVC just cannot be burned because chloride（The chlorine produced after burning
Gas can damage the ozone layer）Even if reclaiming, because the cost for reclaiming is also larger, and the gold content for reusing is too low, and must not repay
Lose.Although OPS heat shrink films meet environmental requirement, OPS heat shrink films need to be mentioned in aspect of performance, and such as part OPS is warm
Shrink film transparency is not good, although part OPS heat shrink films transparency is fine, performs poor in terms of toughness.
The content of the invention
It is an object of the invention to provide environmentally friendly heat shrink films of a kind of high grade of transparency and high tenacity and preparation method thereof, with
Propose in solving the problems, such as above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme：
The environmentally friendly heat shrink films of a kind of high grade of transparency and high tenacity, are made up of the following raw material according to weight portion：Polystyrene
100-110 parts, calcium stearate 3-5 parts, antioxidant 1.5-2.5 parts, light stabilizer 1.2-1.6 parts, TDE 2.5-3.0
Part, polystyrene Sulfonate 2-5 parts, nano-calcium carbonate 1.0-1.4 parts, ethyoxyl cocoalkyl amines 0.7-1.3 parts.
As further scheme of the invention：It is made up of the following raw material according to weight portion：Polystyrene 103-108 parts,
It is calcium stearate 3.4-4.7 parts, antioxidant 1.7-2.3 parts, light stabilizer 1.3-1.5 parts, TDE 2.6-2.8 parts, poly-
Sulphur styrene 3-4 parts, nano-calcium carbonate 1.1-1.3 parts, ethyoxyl cocoalkyl amines 0.8-1.1 parts.
As further scheme of the invention：It is made up of the following raw material according to weight portion：It is 106 parts of polystyrene, hard
3.9 parts of fat acid calcium, 2.1 parts of antioxidant, 1.4 parts of light stabilizer, 2.7 parts of TDE, polystyrene Sulfonate 3.3 part, nanometer
1.2 parts of Calcium Carbonate, 0.9 part of ethyoxyl cocoalkyl amines.
As further scheme of the invention：The antioxidant is antioxidant 1076.
As further scheme of the invention：The light stabilizer is light stabilizer 944.
The preparation method of the environmentally friendly heat shrink films of the high grade of transparency and high tenacity, step are as follows：
1）Polystyrene Sulfonate and nano-calcium carbonate is weighed, by polystyrene Sulfonate heating in vacuum to after melting completely, nano-sized carbon is added
Sour calcium, stirring mixing 3-5h, then ultrasonic Treatment 50-60min, obtains additive；
2）Polystyrene and ethyoxyl cocoalkyl amines are weighed, polystyrene is added to reactor, 260-265 is warming up to
DEG C, ethyoxyl cocoalkyl amines are put into, stirring mixing 20-30min obtains the first mixture；
3）Reactor is cooled to into 240-245 DEG C, adds additive, stirring mixing 10-20min to obtain the second mixture；
4）Reactor is warming up to into 250-255 DEG C, calcium stearate, antioxidant, light stabilizer and TDE is weighed, and entirely
Portion is put into reactor, stirring mixing 40-50min, obtains the 3rd mixture；
5）3rd mixture is first passed through into screw extruder extrusion, then is extruded by monolayer inflation film manufacturing machine, after being dried, obtain pipe；
6）After pipe is preheated, send in stretching case, carry out biaxial tension process, obtain thin film, you can, the biaxial tension
Temperature is 110-115 DEG C.
Compared with prior art, the invention has the beneficial effects as follows：
1st, heat shrink films prepared by the present invention, its raw material are mainly polystyrene, meet environmental requirement, and fracture tensile strength reaches
More than 73.1Mpa, with very high toughness, and transparency has reached more than 89.2%, receives more than existing environment protection thermal on market
Contracting film, with preferably packaging effect, good market prospects.
2nd, the present invention is by adding polystyrene Sulfonate, it is possible to increase the toughness of heat shrink films and transparency.
Specific embodiment
Technical scheme is described in more detail with reference to specific embodiment.
Embodiment 1
The environmentally friendly heat shrink films of a kind of high grade of transparency and high tenacity, are made up of the following raw material according to weight portion：Polystyrene 100
Part, 3 parts of calcium stearate, 1.5 parts of antioxidant, 1.2 parts of light stabilizer, 2.5 parts of TDE, polystyrene Sulfonate 2 part, nanometer
1.0 parts of Calcium Carbonate, 0.7 part of ethyoxyl cocoalkyl amines；Wherein, the antioxidant is antioxidant 1076, and the light stabilizer is
Light stabilizer 944.
In the present embodiment, the preparation method of the environmentally friendly heat shrink films of the high grade of transparency and high tenacity, step are as follows：
1）Polystyrene Sulfonate and nano-calcium carbonate is weighed, by polystyrene Sulfonate heating in vacuum to after melting completely, nano-sized carbon is added
Sour calcium, stirring mixing 3h, then ultrasonic Treatment 50min, obtains additive；
2）Polystyrene and ethyoxyl cocoalkyl amines are weighed, polystyrene is added to reactor, be warming up to 260 DEG C, thrown
Enter ethyoxyl cocoalkyl amines, stirring mixing 20min obtains the first mixture；
3）Reactor is cooled to into 240 DEG C, adds additive, stirring mixing 10min to obtain the second mixture；
4）Reactor is warming up to into 250 DEG C, calcium stearate, antioxidant, light stabilizer and TDE is weighed, and is all thrown
Enter to reactor, stirring mixing 40min obtains the 3rd mixture；
5）3rd mixture is first passed through into screw extruder extrusion, then is extruded by monolayer inflation film manufacturing machine, after being dried, obtain pipe；
6）After pipe is preheated, send in stretching case, carry out biaxial tension process, obtain thin film, you can, the biaxial tension
Temperature is 110 DEG C.
Embodiment 2
The environmentally friendly heat shrink films of a kind of high grade of transparency and high tenacity, are made up of the following raw material according to weight portion：Polystyrene 103
Part, 3.4 parts of calcium stearate, 1.9 parts of antioxidant, 1.3 parts of light stabilizer, 2.8 parts of TDE, 4 parts of polystyrene Sulfonate, receive
1 part of Calcium Carbonate of rice, 0.9 part of ethyoxyl cocoalkyl amines；Wherein, the antioxidant is antioxidant 1076, and the light stabilizer is
Light stabilizer 944.
In the present embodiment, the preparation method of the environmentally friendly heat shrink films of the high grade of transparency and high tenacity, step are as follows：
1）Polystyrene Sulfonate and nano-calcium carbonate is weighed, by polystyrene Sulfonate heating in vacuum to after melting completely, nano-sized carbon is added
Sour calcium, stirring mixing 3.5h, then ultrasonic Treatment 53min, obtains additive；
2）Polystyrene and ethyoxyl cocoalkyl amines are weighed, polystyrene is added to reactor, be warming up to 262 DEG C, thrown
Enter ethyoxyl cocoalkyl amines, stirring mixing 25min obtains the first mixture；
3）Reactor is cooled to into 240 DEG C, adds additive, stirring mixing 15min to obtain the second mixture；
4）Reactor is warming up to into 253 DEG C, calcium stearate, antioxidant, light stabilizer and TDE is weighed, and is all thrown
Enter to reactor, stirring mixing 42min obtains the 3rd mixture；
5）3rd mixture is first passed through into screw extruder extrusion, then is extruded by monolayer inflation film manufacturing machine, after being dried, obtain pipe；
6）After pipe is preheated, send in stretching case, carry out biaxial tension process, obtain thin film, you can, the biaxial tension
Temperature is 112 DEG C.
Embodiment 3
The environmentally friendly heat shrink films of a kind of high grade of transparency and high tenacity, are made up of the following raw material according to weight portion：Polystyrene 106
Part, 3.9 parts of calcium stearate, 2.1 parts of antioxidant, 1.4 parts of light stabilizer, 2.7 parts of TDE, 3.3 parts of polystyrene Sulfonate,
1.2 parts of nano-calcium carbonate, 0.9 part of ethyoxyl cocoalkyl amines；Wherein, the antioxidant is antioxidant 1076, and the light is stably
Agent is light stabilizer 944.
In the present embodiment, the preparation method of the environmentally friendly heat shrink films of the high grade of transparency and high tenacity, step are as follows：
1）Polystyrene Sulfonate and nano-calcium carbonate is weighed, by polystyrene Sulfonate heating in vacuum to after melting completely, nano-sized carbon is added
Sour calcium, stirring mixing 4h, then ultrasonic Treatment 56min, obtains additive；
2）Polystyrene and ethyoxyl cocoalkyl amines are weighed, polystyrene is added to reactor, be warming up to 264 DEG C, thrown
Enter ethyoxyl cocoalkyl amines, stirring mixing 25min obtains the first mixture；
3）Reactor is cooled to into 243 DEG C, adds additive, stirring mixing 16min to obtain the second mixture；
4）Reactor is warming up to into 252 DEG C, calcium stearate, antioxidant, light stabilizer and TDE is weighed, and is all thrown
Enter to reactor, stirring mixing 44min obtains the 3rd mixture；
5）3rd mixture is first passed through into screw extruder extrusion, then is extruded by monolayer inflation film manufacturing machine, after being dried, obtain pipe；
6）After pipe is preheated, send in stretching case, carry out biaxial tension process, obtain thin film, you can, the biaxial tension
Temperature is 113 DEG C.
Embodiment 4
The environmentally friendly heat shrink films of a kind of high grade of transparency and high tenacity, are made up of the following raw material according to weight portion：Polystyrene 107
Part, 4.2 parts of calcium stearate, 2 parts of antioxidant, 1.5 parts of light stabilizer, 2.6 parts of TDE, polystyrene Sulfonate 2 part, nanometer
1.1 parts of Calcium Carbonate, 1.2 parts of ethyoxyl cocoalkyl amines；Wherein, the antioxidant is antioxidant 1076, and the light stabilizer is
Light stabilizer 944.
In the present embodiment, the preparation method of the environmentally friendly heat shrink films of the high grade of transparency and high tenacity, step are as follows：
1）Polystyrene Sulfonate and nano-calcium carbonate is weighed, by polystyrene Sulfonate heating in vacuum to after melting completely, nano-sized carbon is added
Sour calcium, stirring mixing 4h, then ultrasonic Treatment 57min, obtains additive；
2）Polystyrene and ethyoxyl cocoalkyl amines are weighed, polystyrene is added to reactor, be warming up to 264 DEG C, thrown
Enter ethyoxyl cocoalkyl amines, stirring mixing 26min obtains the first mixture；
3）Reactor is cooled to into 245 DEG C, adds additive, stirring mixing 13min to obtain the second mixture；
4）Reactor is warming up to into 254 DEG C, calcium stearate, antioxidant, light stabilizer and TDE is weighed, and is all thrown
Enter to reactor, stirring mixing 48min obtains the 3rd mixture；
5）3rd mixture is first passed through into screw extruder extrusion, then is extruded by monolayer inflation film manufacturing machine, after being dried, obtain pipe；
6）After pipe is preheated, send in stretching case, carry out biaxial tension process, obtain thin film, you can, the biaxial tension
Temperature is 110 DEG C.
Embodiment 5
The environmentally friendly heat shrink films of a kind of high grade of transparency and high tenacity, are made up of the following raw material according to weight portion：Polystyrene 110
Part, 5 parts of calcium stearate, 2.5 parts of antioxidant, 1.6 parts of light stabilizer, 3.0 parts of TDE, polystyrene Sulfonate 5 part, nanometer
1.4 parts of Calcium Carbonate, 1.3 parts of ethyoxyl cocoalkyl amines；Wherein, the antioxidant is antioxidant 1076, and the light stabilizer is
Light stabilizer 944.
In the present embodiment, the preparation method of the environmentally friendly heat shrink films of the high grade of transparency and high tenacity, step are as follows：
1）Polystyrene Sulfonate and nano-calcium carbonate is weighed, by polystyrene Sulfonate heating in vacuum to after melting completely, nano-sized carbon is added
Sour calcium, stirring mixing 5h, then ultrasonic Treatment 60min, obtains additive；
2）Polystyrene and ethyoxyl cocoalkyl amines are weighed, polystyrene is added to reactor, be warming up to 265 DEG C, thrown
Enter ethyoxyl cocoalkyl amines, stirring mixing 30min obtains the first mixture；
3）Reactor is cooled to into 245 DEG C, adds additive, stirring mixing 20min to obtain the second mixture；
4）Reactor is warming up to into 255 DEG C, calcium stearate, antioxidant, light stabilizer and TDE is weighed, and is all thrown
Enter to reactor, stirring mixing 50min obtains the 3rd mixture；
5）3rd mixture is first passed through into screw extruder extrusion, then is extruded by monolayer inflation film manufacturing machine, after being dried, obtain pipe；
6）After pipe is preheated, send in stretching case, carry out biaxial tension process, obtain thin film, you can, the biaxial tension
Temperature is 115 DEG C.
Comparative example
Compared with Example 3, without polystyrene Sulfonate, other are same as Example 3.
Environmentally friendly heat shrink films progressive prepared by embodiment 1-5 and comparative example can be tested, test result such as 1 institute of table
Show.
1 performance test table of table
| Group | Fracture tensile strength（MPa） | Elongation at break（%） | Light transmittance（%） |
| Embodiment 1 | 75.7 | 528 | 90.1 |
| Embodiment 2 | 73.1 | 550 | 89.9 |
| Embodiment 3 | 78.5 | 543 | 90.6 |
| Embodiment 4 | 77.9 | 536 | 89.4 |
| Embodiment 5 | 75.4 | 547 | 89.2 |
| Comparative example | 63.4 | 525 | 87.5 |
As can be seen from the above table, the heat shrink films that prepared by the present invention, its raw material are mainly polystyrene, meet environmental requirement, break
Split tensile strength and reached more than 73.1Mpa, with very high toughness, and transparency has reached more than 89.2%, more than on market
Existing environmentally friendly heat shrink films, with preferably packaging effect, good market prospects.
Compared with comparative example, in terms of fracture tensile strength, embodiment 3 is better than comparative example to embodiment 3, in elongation at break
Aspect, no obvious difference between embodiment 3 and comparative example, in terms of light transmittance, embodiment 3 is slightly better than comparative example.Due to
Compared with Example 3, without polystyrene Sulfonate, other are same as Example 3 for comparative example, it can therefore be seen that the present invention passes through
Addition polystyrene Sulfonate, it is possible to increase the toughness of heat shrink films and transparency.
Above the better embodiment of the present invention is explained in detail, but the present invention is not limited to above-mentioned embodiment party
Formula, in the ken that one skilled in the relevant art possesses, can be with the premise of without departing from present inventive concept
Various changes can be made.
Claims (6)
1. environmentally friendly heat shrink films of a kind of high grade of transparency and high tenacity, it is characterised in that by the following raw material group according to weight portion
Into：Polystyrene 100-110 parts, calcium stearate 3-5 parts, antioxidant 1.5-2.5 parts, light stabilizer 1.2-1.6 parts, decabrominated dipheny
Ethane 2.5-3.0 parts, polystyrene Sulfonate 2-5 parts, nano-calcium carbonate 1.0-1.4 parts, ethyoxyl cocoalkyl amines 0.7-1.3 parts.
2. environmentally friendly heat shrink films of the high grade of transparency according to claim 1 and high tenacity, it is characterised in that by it is following according to
The raw material composition of weight portion：Polystyrene 103-108 parts, calcium stearate 3.4-4.7 parts, antioxidant 1.7-2.3 parts, light stabilizer
1.3-1.5 parts, TDE 2.6-2.8 parts, polystyrene Sulfonate 3-4 parts, nano-calcium carbonate 1.1-1.3 parts, ethyoxyl coconut palm
Oily alkylamine 0.8-1.1 parts.
3. environmentally friendly heat shrink films of the high grade of transparency according to claim 2 and high tenacity, it is characterised in that by it is following according to
The raw material composition of weight portion：106 parts of polystyrene, 3.9 parts of calcium stearate, 2.1 parts of antioxidant, 1.4 parts of light stabilizer, ten bromines two
2.7 parts of vinylbenzene, 3.3 parts of polystyrene Sulfonate, 1.2 parts of nano-calcium carbonate, 0.9 part of ethyoxyl cocoalkyl amines.
4. environmentally friendly heat shrink films of the high grade of transparency according to claim 3 and high tenacity, it is characterised in that the antioxidant
For antioxidant 1076.
5. environmentally friendly heat shrink films of the high grade of transparency according to claim 4 and high tenacity, it is characterised in that the light is stable
Agent is light stabilizer 944.
6. a kind of preparation method of the environmentally friendly heat shrink films of the high grade of transparency and high tenacity as described in claim 1-5 is arbitrary, its
It is characterised by, step is as follows：
1）Polystyrene Sulfonate and nano-calcium carbonate is weighed, by polystyrene Sulfonate heating in vacuum to after melting completely, nano-sized carbon is added
Sour calcium, stirring mixing 3-5h, then ultrasonic Treatment 50-60min, obtains additive；
2）Polystyrene and ethyoxyl cocoalkyl amines are weighed, polystyrene is added to reactor, 260-265 is warming up to
DEG C, ethyoxyl cocoalkyl amines are put into, stirring mixing 20-30min obtains the first mixture；
3）Reactor is cooled to into 240-245 DEG C, adds additive, stirring mixing 10-20min to obtain the second mixture；
4）Reactor is warming up to into 250-255 DEG C, calcium stearate, antioxidant, light stabilizer and TDE is weighed, and entirely
Portion is put into reactor, stirring mixing 40-50min, obtains the 3rd mixture；
5）3rd mixture is first passed through into screw extruder extrusion, then is extruded by monolayer inflation film manufacturing machine, after being dried, obtain pipe；
6）After pipe is preheated, send in stretching case, carry out biaxial tension process, obtain thin film, you can, the biaxial tension
Temperature is 110-115 DEG C.
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| CN201611145454.3A CN106519474B (en) | 2016-12-13 | 2016-12-13 | A kind of environmentally friendly heat shrink films and preparation method thereof of the high grade of transparency and high tenacity |
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| JP2004307639A (en) * | 2003-04-07 | 2004-11-04 | Toyobo Co Ltd | Laminated syndiotactic polystyrene-based oriented film |
| JP2004358933A (en) * | 2003-04-08 | 2004-12-24 | Toyobo Co Ltd | Laminated syndiotactic polystyrene oriented film |
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| CN103834086A (en) * | 2014-03-19 | 2014-06-04 | 华南农业大学 | Efficient controllable photooxidation-biodegradable plastic film and preparation method thereof |
| CN105440469A (en) * | 2015-12-03 | 2016-03-30 | 李嘉 | High-tenacity PS film for packaging and preparation method thereof |
| CN105440470A (en) * | 2015-12-03 | 2016-03-30 | 李嘉 | Anti-aging PS film for packaging and preparation method thereof |
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2016
- 2016-12-13 CN CN201611145454.3A patent/CN106519474B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004307639A (en) * | 2003-04-07 | 2004-11-04 | Toyobo Co Ltd | Laminated syndiotactic polystyrene-based oriented film |
| JP2004358933A (en) * | 2003-04-08 | 2004-12-24 | Toyobo Co Ltd | Laminated syndiotactic polystyrene oriented film |
| CN103483796A (en) * | 2013-09-29 | 2014-01-01 | 太仓市鸿运包装材料有限公司 | Scratching-resistant and flame-retardant PC (polycarbonate) film material and preparation method thereof |
| CN103834086A (en) * | 2014-03-19 | 2014-06-04 | 华南农业大学 | Efficient controllable photooxidation-biodegradable plastic film and preparation method thereof |
| CN105440469A (en) * | 2015-12-03 | 2016-03-30 | 李嘉 | High-tenacity PS film for packaging and preparation method thereof |
| CN105440470A (en) * | 2015-12-03 | 2016-03-30 | 李嘉 | Anti-aging PS film for packaging and preparation method thereof |
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