CN114015146A - PE (polyethylene) protective film material for automobiles and preparation method thereof - Google Patents
PE (polyethylene) protective film material for automobiles and preparation method thereof Download PDFInfo
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- CN114015146A CN114015146A CN202111592836.1A CN202111592836A CN114015146A CN 114015146 A CN114015146 A CN 114015146A CN 202111592836 A CN202111592836 A CN 202111592836A CN 114015146 A CN114015146 A CN 114015146A
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- 239000004698 Polyethylene Substances 0.000 title claims abstract description 86
- 230000001681 protective effect Effects 0.000 title claims abstract description 59
- -1 polyethylene Polymers 0.000 title claims abstract description 46
- 239000000463 material Substances 0.000 title claims abstract description 34
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 28
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 28
- 239000002994 raw material Substances 0.000 claims abstract description 26
- 239000003607 modifier Substances 0.000 claims abstract description 20
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000003063 flame retardant Substances 0.000 claims abstract description 17
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 14
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 14
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 14
- 229920001684 low density polyethylene Polymers 0.000 claims abstract description 14
- 239000004702 low-density polyethylene Substances 0.000 claims abstract description 14
- 239000000314 lubricant Substances 0.000 claims abstract description 14
- 229920001568 phenolic resin Polymers 0.000 claims abstract description 14
- 239000005011 phenolic resin Substances 0.000 claims abstract description 14
- 229920000379 polypropylene carbonate Polymers 0.000 claims abstract description 14
- 229920002635 polyurethane Polymers 0.000 claims abstract description 14
- 239000004814 polyurethane Substances 0.000 claims abstract description 14
- LLHKCFNBLRBOGN-UHFFFAOYSA-N propylene glycol methyl ether acetate Chemical compound COCC(C)OC(C)=O LLHKCFNBLRBOGN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims abstract description 13
- 238000002156 mixing Methods 0.000 claims description 24
- 238000003756 stirring Methods 0.000 claims description 24
- 239000000853 adhesive Substances 0.000 claims description 19
- 230000001070 adhesive effect Effects 0.000 claims description 19
- 238000002844 melting Methods 0.000 claims description 12
- 230000008018 melting Effects 0.000 claims description 12
- 238000010010 raising Methods 0.000 claims description 12
- 239000012745 toughening agent Substances 0.000 claims description 7
- 239000007822 coupling agent Substances 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 239000003381 stabilizer Substances 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- 230000006750 UV protection Effects 0.000 abstract description 5
- 239000011230 binding agent Substances 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- 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
- 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
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—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
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2469/00—Characterised by the use of polycarbonates; Derivatives of polycarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2475/04—Polyurethanes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention discloses a PE (polyethylene) protective film material for automobiles and a preparation method thereof, wherein the PE protective film material for automobiles comprises the following raw materials in parts by weight: 20-25 parts of polyurethane, 10-15 parts of propylene glycol methyl ether acetate, 5-10 parts of phenolic resin, 1-3 parts of curing agent, 1-3 parts of modifier, 20-25 parts of binder, 80-100 parts of polyethylene, 20-30 parts of calcium carbonate, 5-8 parts of polypropylene carbonate, 1-3 parts of flexibilizer, 1-5 parts of flame retardant, 1-5 parts of ultraviolet resistant agent and 0.1-0.3 part of lubricant, wherein the polyethylene is a blend of low-density polyethylene and high-density polyethylene, and the mass ratio of the low-density polyethylene to the high-density polyethylene is 2-3: 1. The PE protective film is reasonable in design, the situation that the two ends of the protective film are winged can be reduced, the service life can be prolonged, and the PE protective film has good flame retardant property and ultraviolet resistance.
Description
Technical Field
The invention relates to the technical field of PE protective film materials, in particular to a PE protective film material for an automobile and a preparation method thereof.
Background
Polyethylene is a macromolecular organic compound with the simplest structure and is also the most widely used macromolecular material in the world today. The PE protective film takes a special polyethylene plastic film as a base material, can be used on the surfaces of various decorative strip materials of automobiles, and has the greatest advantages that the protected decorative strip materials are not polluted, corroded or scratched in the production, processing, transportation, storage and use processes, and the original bright and clean surface is protected. Therefore, high-end automobile manufacturer spare and accessory part processing enterprises at home and abroad widely use the PE protective film in the manufacturing process to protect the product from pollution, corrosion and scratch, and further improve the production quality and market competitiveness of the enterprise product.
At present, the PE protective film for the automobile has some problems in different degrees in the application process, for example, the PE protective film is poor in viscosity and tensile property, so that edge warping is easy to occur after the PE protective film is used for a long time, and the PE protective film is poor in flame retardance and ultraviolet resistance, so that the use of the PE protective film is influenced.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a PE protective film material for an automobile and a preparation method thereof.
The invention provides a PE (polyethylene) protective film material for automobiles, which comprises the following raw materials in parts by weight:
20-25 parts of polyurethane, 10-15 parts of propylene glycol methyl ether acetate, 5-10 parts of phenolic resin, 1-3 parts of curing agent, 1-3 parts of modifier, 20-25 parts of adhesive, 80-100 parts of polyethylene, 20-30 parts of calcium carbonate, 5-8 parts of polypropylene carbonate, 1-3 parts of flexibilizer, 1-5 parts of flame retardant, 1-5 parts of ultraviolet resistant agent and 0.1-0.3 part of lubricant.
Preferably, the polyethylene is a blend of low-density polyethylene and high-density polyethylene, and the mass specific gravity of the low-density polyethylene and the high-density polyethylene is 2-3: 1.
A preparation method of a PE protective film material for an automobile comprises the following steps:
s1: weighing raw materials by an electronic scale for later use;
s2: adding the polyurethane prepared in the S1, propylene glycol methyl ether acetate, phenolic resin and a bonding material into a mixing device, mixing and stirring, and raising the temperature to 60-70 ℃;
s3: adding the curing agent and the modifier in the S1 into the S2, raising the temperature to 80-90 ℃, and stirring for 2-3h to obtain the adhesive;
s4: mixing and stirring the polyethylene, the calcium carbonate and the polypropylene carbonate in the S1 in a stirrer for 15-20 minutes;
s5: adding the toughening agent, the flame retardant, the ultraviolet resistant agent and the lubricant in the step S1 into the step S4, and continuously stirring for 10-20 minutes to obtain a raw material;
s6: adding the raw material mixture obtained in the step S5 into a twin-screw extruder, and then melting, mixing and stretching to obtain a semi-finished PE protective film;
and S7, spraying the adhesive obtained in the S3 on one side of the semi-finished PE protective film, adding a release paper, and cutting to obtain the PE protective film.
Preferably, the rotation speed in S2 is 500-1000r/min, and the time is 20-50 min.
Preferably, the melting temperature in S6 is set to be 165-175 ℃.
Preferably, the extrusion temperature of the twin-screw extruder in S6 is 160-190 ℃, and the screw rotation speed is 450-550 r/min.
Preferably, the modifier is added with a coupling agent and a stabilizer.
Compared with the prior art, the invention has the beneficial effects that:
the PE protective film has good tensile strength and adhesion performance, can be stably adhered, reduces the situation that the two ends of the protective film are winged after the protective film is used for a period of time, can prolong the service life, and has good flame retardant performance and ultraviolet resistance.
Detailed Description
The present invention will be further illustrated with reference to the following specific examples.
Example one
The embodiment provides a PE (polyethylene) protective film material for automobiles, which comprises the following raw materials in parts by weight:
20 parts of polyurethane, 10 parts of propylene glycol methyl ether acetate, 5 parts of phenolic resin, 1 part of curing agent, 1 part of modifier, 20 parts of adhesive, 80 parts of polyethylene, 20 parts of calcium carbonate, 5 parts of polypropylene carbonate, 1 part of flexibilizer, 1 part of flame retardant, 1 part of ultraviolet resistant agent and 0.1 part of lubricant.
In this example, the polyethylene is provided as a blend of low density polyethylene and high density polyethylene, and the mass specific gravity of the low density polyethylene and the high density polyethylene is 2: 1.
A preparation method of a PE protective film material for an automobile comprises the following steps:
s1: weighing raw materials by an electronic scale for later use;
s2: adding the polyurethane prepared in the S1, propylene glycol methyl ether acetate, phenolic resin and a bonding material into a mixing device, mixing and stirring, and raising the temperature to 60 ℃;
s3: adding the curing agent and the modifier in the S1 into the S2, raising the temperature to 80 ℃, and stirring for 2 hours to obtain the adhesive;
s4: mixing and stirring the polyethylene, the calcium carbonate and the polypropylene carbonate in the S1 in a stirrer for 15 minutes;
s5: adding the toughening agent, the flame retardant, the ultraviolet resistant agent and the lubricant in the step S1 into the step S4, and continuously stirring for 10 minutes to obtain a raw material;
s6: adding the raw material mixture obtained in the step S5 into a twin-screw extruder, and then melting, mixing and stretching to obtain a semi-finished PE protective film;
and S7, spraying the adhesive obtained in the S3 on one side of the semi-finished PE protective film, adding a release paper, and cutting to obtain the PE protective film.
In this embodiment, the rotation speed in S2 is 500r/min, and the time is 50 min.
In this example, the temperature of melting in S6 was set to 165 ℃.
In this example, the extrusion temperature of the twin-screw extruder in S6 was 160 ℃ and the screw rotation speed was 550 r/min.
In this embodiment, the modifier is added with a coupling agent and a stabilizer.
Example two
The embodiment provides a PE (polyethylene) protective film material for automobiles, which comprises the following raw materials in parts by weight:
22 parts of polyurethane, 12 parts of propylene glycol methyl ether acetate, 7 parts of phenolic resin, 1.5 parts of curing agent, 1.5 parts of modifier, 22 parts of adhesive, 90 parts of polyethylene, 25 parts of calcium carbonate, 6 parts of polypropylene carbonate, 2 parts of flexibilizer, 3 parts of flame retardant, 3 parts of ultraviolet resistant agent and 0.2 part of lubricant.
In this example, the polyethylene is set as a blend of low density polyethylene and high density polyethylene, and the mass specific gravity of the low density polyethylene and the high density polyethylene is 3: 1.
A preparation method of a PE protective film material for an automobile comprises the following steps:
s1: weighing raw materials by an electronic scale for later use;
s2: adding the polyurethane prepared in the S1, propylene glycol methyl ether acetate, phenolic resin and a bonding material into a mixing device, mixing and stirring, and raising the temperature to 65 ℃;
s3: adding the curing agent and the modifier in the S1 into the S2, raising the temperature to 80 ℃, and stirring for 2.5 hours to obtain the adhesive;
s4: mixing and stirring the polyethylene, the calcium carbonate and the polypropylene carbonate in the S1 in a stirrer for 16 minutes;
s5: adding the toughening agent, the flame retardant, the ultraviolet resistant agent and the lubricant in the step S1 into the step S4, and continuously stirring for 15 minutes to obtain a raw material;
s6: adding the raw material mixture obtained in the step S5 into a twin-screw extruder, and then melting, mixing and stretching to obtain a semi-finished PE protective film;
and S7, spraying the adhesive obtained in the S3 on one side of the semi-finished PE protective film, adding a release paper, and cutting to obtain the PE protective film.
In this embodiment, the rotation speed of S2 is 700r/min, and the time is 40 min.
In this example, the temperature of melting in S6 was set to 170 ℃.
In this example, the extrusion temperature of the twin-screw extruder in S6 was 170 ℃ and the screw rotation speed was 500 r/min.
In this embodiment, the modifier is added with a coupling agent and a stabilizer.
EXAMPLE III
The embodiment provides a PE (polyethylene) protective film material for automobiles, which comprises the following raw materials in parts by weight:
24 parts of polyurethane, 14 parts of propylene glycol methyl ether acetate, 9 parts of phenolic resin, 2 parts of curing agent, 2 parts of modifier, 24 parts of adhesive, 90 parts of polyethylene, 28 parts of calcium carbonate, 7 parts of polypropylene carbonate, 2 parts of toughening agent, 4 parts of flame retardant, 4 parts of ultraviolet resistant agent and 0.2 part of lubricant.
In this example, the polyethylene is set as a blend of low density polyethylene and high density polyethylene, and the mass specific gravity of the low density polyethylene and the high density polyethylene is 3: 1.
A preparation method of a PE protective film material for an automobile comprises the following steps:
s1: weighing raw materials by an electronic scale for later use;
s2: adding the polyurethane prepared in the S1, propylene glycol methyl ether acetate, phenolic resin and a bonding material into a mixing device, mixing and stirring, and raising the temperature to 65 ℃;
s3: adding the curing agent and the modifier in the S1 into the S2, raising the temperature to 85 ℃, and stirring for 3 hours to obtain the adhesive;
s4: mixing and stirring the polyethylene, the calcium carbonate and the polypropylene carbonate in the S1 in a stirrer for 18 minutes;
s5: adding the toughening agent, the flame retardant, the ultraviolet resistant agent and the lubricant in the step S1 into the step S4, and continuously stirring for 18 minutes to obtain a raw material;
s6: adding the raw material mixture obtained in the step S5 into a twin-screw extruder, and then melting, mixing and stretching to obtain a semi-finished PE protective film;
and S7, spraying the adhesive obtained in the S3 on one side of the semi-finished PE protective film, adding a release paper, and cutting to obtain the PE protective film.
In this embodiment, the rotation speed of S2 is 900r/min, and the time is 30 min.
In this example, the temperature of melting in S6 was set to 170 ℃.
In this example, the extrusion temperature of the twin-screw extruder in S6 was 180 ℃ and the screw rotation speed was 500 r/min.
In this embodiment, the modifier is added with a coupling agent and a stabilizer.
Example four
The embodiment provides a PE (polyethylene) protective film material for automobiles, which comprises the following raw materials in parts by weight:
25 parts of polyurethane, 15 parts of propylene glycol methyl ether acetate, 10 parts of phenolic resin, 3 parts of curing agent, 3 parts of modifier, 25 parts of adhesive, 100 parts of polyethylene, 30 parts of calcium carbonate, 8 parts of polypropylene carbonate, 3 parts of flexibilizer, 5 parts of flame retardant, 5 parts of ultraviolet resistant agent and 0.3 part of lubricant.
In this example, the polyethylene is set as a blend of low density polyethylene and high density polyethylene, and the mass specific gravity of the low density polyethylene and the high density polyethylene is 3: 1.
A preparation method of a PE protective film material for an automobile comprises the following steps:
s1: weighing raw materials by an electronic scale for later use;
s2: adding the polyurethane prepared in the S1, propylene glycol methyl ether acetate, phenolic resin and a bonding material into a mixing device, mixing and stirring, and raising the temperature to 70 ℃;
s3: adding the curing agent and the modifier in the S1 into the S2, raising the temperature to 90 ℃, and stirring for 3 hours to obtain the adhesive;
s4: mixing and stirring the polyethylene, the calcium carbonate and the polypropylene carbonate in the S1 in a stirrer for 20 minutes;
s5: adding the toughening agent, the flame retardant, the ultraviolet resistant agent and the lubricant in the step S1 into the step S4, and continuously stirring for 20 minutes to obtain a raw material;
s6: adding the raw material mixture obtained in the step S5 into a twin-screw extruder, and then melting, mixing and stretching to obtain a semi-finished PE protective film;
and S7, spraying the adhesive obtained in the S3 on one side of the semi-finished PE protective film, adding a release paper, and cutting to obtain the PE protective film.
In this embodiment, the rotation speed in S2 is 1000r/min, and the time is 40 min.
In this example, the temperature of melting in S6 was set to 175 ℃.
In the present example, the extrusion temperature of the twin-screw extruder in S6 was 190 ℃ and the screw rotation speed was 550 r/min.
In this embodiment, the modifier is added with a coupling agent and a stabilizer.
The PE protective film has good tensile strength and adhesion performance, can be stably adhered, reduces the situation that the two ends of the protective film are winged after the protective film is used for a period of time, can prolong the service life, and has good flame retardant performance and ultraviolet resistance.
The PE protective films prepared in examples one to four were selected for testing as shown in the table:
| examples | Tensile Strength (%) | Flame retardancy (%) | Ultraviolet resistance (%) |
| Example one | 93.1 | 91.2 | 91.8 |
| Example two | 94.3 | 92.5 | 93.6 |
| EXAMPLE III | 96.2 | 94.5 | 94.1 |
| Example four | 97.5 | 95.7 | 95.3 |
The results show that example four is the best example.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The PE protective film material for the automobile is characterized by comprising the following raw materials in parts by weight:
20-25 parts of polyurethane, 10-15 parts of propylene glycol methyl ether acetate, 5-10 parts of phenolic resin, 1-3 parts of curing agent, 1-3 parts of modifier, 20-25 parts of adhesive, 80-100 parts of polyethylene, 20-30 parts of calcium carbonate, 5-8 parts of polypropylene carbonate, 1-3 parts of flexibilizer, 1-5 parts of flame retardant, 1-5 parts of ultraviolet resistant agent and 0.1-0.3 part of lubricant.
2. The PE protective film material for the automobile according to claim 1, which is characterized by comprising the following raw materials in parts by weight: 20 parts of polyurethane, 10 parts of propylene glycol methyl ether acetate, 5 parts of phenolic resin, 1 part of curing agent, 1 part of modifier, 20 parts of adhesive, 80 parts of polyethylene, 20 parts of calcium carbonate, 5 parts of polypropylene carbonate, 1 part of flexibilizer, 1 part of flame retardant, 1 part of ultraviolet resistant agent and 0.1 part of lubricant.
3. The PE protective film material for the automobile according to claim 1, wherein the polyethylene is a blend of low density polyethylene and high density polyethylene, and the mass specific gravity of the low density polyethylene and the high density polyethylene is 2-3: 1.
4. A preparation method of a PE (polyethylene) protective film material for automobiles is characterized by comprising the following steps:
s1: weighing raw materials by an electronic scale for later use;
s2: adding the polyurethane prepared in the S1, propylene glycol methyl ether acetate, phenolic resin and a bonding material into a mixing device, mixing and stirring, and raising the temperature to 60-70 ℃;
s3: adding the curing agent and the modifier in the S1 into the S2, raising the temperature to 80-90 ℃, and stirring for 2-3h to obtain the adhesive;
s4: mixing and stirring the polyethylene, the calcium carbonate and the polypropylene carbonate in the S1 in a stirrer for 15-20 minutes;
s5: adding the toughening agent, the flame retardant, the ultraviolet resistant agent and the lubricant in the step S1 into the step S4, and continuously stirring for 10-20 minutes to obtain a raw material;
s6: adding the raw material mixture obtained in the step S5 into a twin-screw extruder, and then melting, mixing and stretching to obtain a semi-finished PE protective film;
and S7, spraying the adhesive obtained in the S3 on one side of the semi-finished PE protective film, adding a release paper, and cutting to obtain the PE protective film.
5. The method as claimed in claim 4, wherein the rotation speed of S2 is 500-1000r/min for 20-50 min.
6. The method for preparing the PE protective film material for the automobile according to claim 4, wherein the melting temperature in S6 is set to 165-175 ℃.
7. The method for preparing PE protective film material for automobile as claimed in claim 4, wherein the extrusion temperature of the twin-screw extruder in S6 is 160-190 ℃ and the screw rotation speed is 450-550 r/min.
8. The method for preparing the PE protective film material for the automobile according to claim 3, wherein a coupling agent and a stabilizer are added into the modifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111592836.1A CN114015146A (en) | 2021-12-23 | 2021-12-23 | PE (polyethylene) protective film material for automobiles and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111592836.1A CN114015146A (en) | 2021-12-23 | 2021-12-23 | PE (polyethylene) protective film material for automobiles and preparation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN114015146A true CN114015146A (en) | 2022-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111592836.1A Pending CN114015146A (en) | 2021-12-23 | 2021-12-23 | PE (polyethylene) protective film material for automobiles and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115193272A (en) * | 2022-07-15 | 2022-10-18 | 浙江多凌药用包装材料有限公司 | Low-solvent-residue PE composite membrane process |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105462114A (en) * | 2015-12-21 | 2016-04-06 | 青岛宇星智能科技开发有限公司 | Ultravioletproof car paster |
| CN113501987A (en) * | 2021-07-26 | 2021-10-15 | 东莞市晶致光学薄膜有限公司 | Anti-scratch paint surface protective film with repairing function and preparation method thereof |
-
2021
- 2021-12-23 CN CN202111592836.1A patent/CN114015146A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105462114A (en) * | 2015-12-21 | 2016-04-06 | 青岛宇星智能科技开发有限公司 | Ultravioletproof car paster |
| CN113501987A (en) * | 2021-07-26 | 2021-10-15 | 东莞市晶致光学薄膜有限公司 | Anti-scratch paint surface protective film with repairing function and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115193272A (en) * | 2022-07-15 | 2022-10-18 | 浙江多凌药用包装材料有限公司 | Low-solvent-residue PE composite membrane process |
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