CN113736193A - Weather-resistant polymer color-changing film and preparation method thereof - Google Patents
Weather-resistant polymer color-changing film and preparation method thereof Download PDFInfo
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- CN113736193A CN113736193A CN202111216891.0A CN202111216891A CN113736193A CN 113736193 A CN113736193 A CN 113736193A CN 202111216891 A CN202111216891 A CN 202111216891A CN 113736193 A CN113736193 A CN 113736193A
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- 229920000642 polymer Polymers 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000004014 plasticizer Substances 0.000 claims abstract description 29
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical class [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 23
- 239000000049 pigment Substances 0.000 claims abstract description 23
- 239000006057 Non-nutritive feed additive Substances 0.000 claims abstract description 21
- 239000011347 resin Substances 0.000 claims abstract description 18
- 229920005989 resin Polymers 0.000 claims abstract description 18
- 239000000919 ceramic Substances 0.000 claims abstract description 16
- 239000000835 fiber Substances 0.000 claims abstract description 16
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 14
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 14
- 239000002994 raw material Substances 0.000 claims abstract description 14
- 239000003381 stabilizer Substances 0.000 claims abstract description 14
- 239000006097 ultraviolet radiation absorber Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 34
- 238000003756 stirring Methods 0.000 claims description 27
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 11
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 8
- 239000004408 titanium dioxide Substances 0.000 claims description 8
- GCDUWJFWXVRGSM-UHFFFAOYSA-N 2-[2-(2-heptanoyloxyethoxy)ethoxy]ethyl heptanoate Chemical compound CCCCCCC(=O)OCCOCCOCCOC(=O)CCCCCC GCDUWJFWXVRGSM-UHFFFAOYSA-N 0.000 claims description 7
- 239000002202 Polyethylene glycol Substances 0.000 claims description 7
- WNLRTRBMVRJNCN-UHFFFAOYSA-L adipate(2-) Chemical compound [O-]C(=O)CCCCC([O-])=O WNLRTRBMVRJNCN-UHFFFAOYSA-L 0.000 claims description 7
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 7
- 229920001223 polyethylene glycol Polymers 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 229920000728 polyester Polymers 0.000 claims description 6
- 239000012963 UV stabilizer Substances 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 239000006185 dispersion Substances 0.000 claims description 5
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 238000010345 tape casting Methods 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 5
- 229940124543 ultraviolet light absorber Drugs 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 238000005260 corrosion Methods 0.000 abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 7
- 230000032683 aging Effects 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 239000012528 membrane Substances 0.000 description 6
- 239000000843 powder Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 4
- MCPKSFINULVDNX-UHFFFAOYSA-N drometrizole Chemical compound CC1=CC=C(O)C(N2N=C3C=CC=CC3=N2)=C1 MCPKSFINULVDNX-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- DPTATFGPDCLUTF-UHFFFAOYSA-N phosphanylidyneiron Chemical compound [Fe]#P DPTATFGPDCLUTF-UHFFFAOYSA-N 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 230000006750 UV protection Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000004224 protection Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007655 standard test method Methods 0.000 description 1
- 230000009044 synergistic interaction Effects 0.000 description 1
- 230000009974 thixotropic effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000004383 yellowing 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
- C08J2327/00—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 a halogen; Derivatives of such polymers
- C08J2327/02—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 a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/04—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 at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08J2327/06—Homopolymers or copolymers of vinyl chloride
-
- 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
- C08J2467/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2467/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/02—Organic and inorganic ingredients
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
-
- 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
- C08K5/10—Esters; Ether-esters
- C08K5/101—Esters; Ether-esters of monocarboxylic acids
- C08K5/103—Esters; Ether-esters of monocarboxylic acids with polyalcohols
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- 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)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a weather-resistant polymer color-changing film and a preparation method thereof, wherein the weather-resistant polymer color-changing film comprises the following raw materials: 90-110 parts of PVC resin, 15-30 parts of plasticizer, 2-4 parts of stabilizer, 0.2-0.5 part of ultraviolet absorber, 0.2-0.5 part of antioxidant, 1-3 parts of processing aid, 5-15 parts of superfine activated calcium carbonate, 5-10 parts of ceramic fiber and 1-10 parts of pigment. The invention provides a weather-resistant polymer color-changing film and a preparation method thereof, and the prepared automobile color-changing film has excellent comprehensive performance, high glossiness, smoothness, brightness, excellent corrosion resistance, weather resistance, high and low temperature resistance, water resistance, aging resistance, wear resistance and antistatic property through mutual compatibility and combination of the raw materials.
Description
Technical Field
The invention belongs to the technical field of production of high polymer materials, and particularly relates to a weather-resistant high polymer color-changing film and a preparation method thereof.
Background
The car membrane is a membrane product for car heat insulation, ultraviolet resistance, and car membrane brand on the market is many, and the price also differs very far, and many car owners often look after about to hold the uncertain idea, and good car membrane is the high technical content product in fact, selects the car membrane to learn a lot of. The film pasting of the car membrane has high requirements on technology and soft and hard conditions, such as dustless environment, special equipment, standardized operation flow, skilled technology and the like. However, the threshold for adding the line is extremely low, so that illegal vendors mix the false and inferior products, and consumers are often lost due to the incomprehensible product.
The automobile color changing film is a film with rich color series and various colors, and the whole automobile or local appearance is changed in a mode of overall covering and pasting. The automobile color changing film is mainly attached to the surface of an automobile body through a high polymer material, the ultrahigh flexibility performance brought by a high polymer product can realize ideal zigzag performance on any arc surface, the soft and beautiful texture of the curved surface of the automobile body is comprehensively expressed, the automobile color changing film is easy to remove, the painted surface is not damaged, no adhesive residue is left, any toxic or side effect is not generated on the painted surface, a human body and the nature, the automobile color changing film is green and environment-friendly, the existing automobile color changing film on the market is various, but most of the automobile color changing film has the defects of poor corrosion resistance and poor weather resistance, and the service life of the automobile color changing film is influenced.
Therefore, it is an urgent need to solve the problems of the art to provide a polymer color-changing film having excellent corrosion resistance and weather resistance and a method for preparing the same.
Disclosure of Invention
In view of the above, the invention provides a weather-resistant polymer color-changing film and a preparation method thereof, and through mutual compatibility and combination of the raw materials, the prepared automobile color-changing film has excellent comprehensive performance, high glossiness, smoothness, brightness, excellent corrosion resistance, weather resistance, high and low temperature resistance, water resistance, aging resistance, wear resistance and antistatic property.
In order to achieve the purpose, the invention adopts the following technical scheme:
a weather-resistant polymer color-changing film comprises the following raw materials: 90-110 parts of PVC resin, 15-30 parts of plasticizer, 2-4 parts of stabilizer, 0.2-0.5 part of ultraviolet absorber, 0.2-0.5 part of antioxidant, 1-3 parts of processing aid, 5-15 parts of superfine activated calcium carbonate, 5-10 parts of ceramic fiber and 1-10 parts of pigment.
According to the invention, the plasticizer is added to improve the high and low temperature resistance, the aging resistance and the weather resistance of the material, the calcium carbonate, the light stability, the processing aid and the ceramic fiber are added to improve the heat resistance of the color-changing film, the car film is prevented from being softened by the influence of high temperature, and the anti-abrasion and anti-scratch effects of the car film are further improved.
Preferably, the following raw materials are included: 100 parts of PVC resin, 20 parts of plasticizer, 3 parts of stabilizer, 0.3 part of ultraviolet absorber, 0.4 part of antioxidant, 2 parts of processing aid, 10 parts of superfine active calcium carbonate, 8 parts of ceramic fiber and 5 parts of pigment.
Preferably, the PVC resin is vinyl PVC resin with the polymerization degree of 1000-1300.
The ethylene-process PVC resin with the polymerization degree of 1000-1300 adopted by the invention is easy to process, and the color-changing film defects such as fish eyes, black spots and the like are few.
Preferably, the plasticizer is a polyester plasticizer having an average molecular weight of 2000-3000.
Preferably, the polyester plasticizer is a mixture of polyethylene glycol adipate and triethylene glycol diheptanoate, and the mass ratio of the polyethylene glycol adipate to the triethylene glycol diheptanoate is 2-5: 3.
The polyester plasticizer adopted by the invention has the advantages of migration resistance, extraction resistance, volatilization resistance and difficult yellowing, and the polyester plasticizer can realize synergistic interaction in the proportion, so that the high and low temperature resistance, the aging resistance and the weather resistance of the material are obviously improved, and the service life of the color-changing film can be prolonged.
Preferably, the stabilizer is a UV stabilizer, and the antioxidant is 1010 or 1076.
Preferably, the ultraviolet absorbent is any one of UV-531, UV-P, UV-9 and UVP-327.
Preferably, the processing aid is an acrylic type PVC processing aid.
The processing aid adopted by the invention can be used as a viscosity reducer, can effectively reduce thixotropic viscosity caused by pigments and the like, increases leveling property, has good dispersibility for the pigments, has a plasticizing effect, and improves the weather resistance of the material.
Preferably, the pigment is a mixture of titanium dioxide and polymerized ferrophosphorus powder, and the mass ratio of the titanium dioxide to the polymerized ferrophosphorus powder is 1-3: 2.
The added titanium dioxide and the polymerized ferrophosphorus powder are matched with each other to be used as the pigment, so that the heat resistance, the corrosion resistance, the wear resistance, the weather resistance and the antistatic property of the material can be improved.
The preparation method of the weather-resistant polymer color-changing film specifically comprises the following steps:
(1) weighing raw materials of PVC resin, a plasticizer, a stabilizer, an ultraviolet absorber, an antioxidant, a processing aid, superfine activated calcium carbonate, ceramic fiber and a pigment according to parts by weight for later use;
(2) adding the pigment and the ceramic fiber into a dispersion machine, and dispersing for 3-5min at the rotating speed of 2000-3000/min;
(3) adding the PVC resin and the plasticizer into a stirrer, stirring until the material temperature is 80-90 ℃, adding the ultraviolet light absorber, the antioxidant, the superfine active calcium carbonate and the material obtained in the step (2), stirring until the material temperature is 100-110 ℃, adding the stabilizer and the processing aid, stirring until the material temperature is 140-160 ℃, stirring for 60-80min, stopping stirring, and discharging when the material temperature is reduced to 40-50 ℃;
(4) and (4) adding the material obtained in the step (3) into a double-screw extruder for melt blending, and performing tape casting extrusion to obtain the weather-resistant polymer color-changing film.
The invention improves the reaction temperature in the preparation process, can fully react all the components, and further improves the comprehensive performance of the product, so that the product has high glossiness, higher weather resistance and higher corrosion resistance.
Preferably, the rotation speed of the stirring in the step (3) is 2800-3500 r/min.
Preferably, the temperatures of the sections of the twin-screw extruder in the step (4) are respectively as follows: the first zone is 185-195 ℃, the second zone is 185-195 ℃, the third zone is 190-200 ℃, the fourth zone is 190-200 ℃, the head is 195-205 ℃, and the temperature of the casting cooling roller is 20-30 ℃.
According to the technical scheme, compared with the prior art, the invention has the following beneficial effects: the invention provides a weather-resistant polymer color-changing film and a preparation method thereof, and the prepared automobile color-changing film has excellent comprehensive performance, high glossiness, smoothness, brightness, excellent corrosion resistance, weather resistance, high and low temperature resistance, water resistance, aging resistance, wear resistance and antistatic property through mutual compatibility and combination of the raw materials.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
A preparation method of a weather-resistant polymer color-changing film specifically comprises the following steps:
(1) weighing raw materials: 90 parts of PVC resin, 15 parts of plasticizer, 2 parts of UV stabilizer, UV-5310.2 parts, 10100.2 parts of antioxidant, 1 part of acrylic PVC processing aid, 5 parts of superfine activated calcium carbonate, 5 parts of ceramic fiber and 1 part of pigment for later use; wherein the plasticizer is a mixture of polyethylene glycol adipate and triethylene glycol diheptanoate with the mass ratio of 2:3, the average molecular weight is 2000-3000, and the pigment is a mixture of titanium dioxide and polymerized phosphorus iron powder with the mass ratio of 1: 2;
(2) adding the pigment and the ceramic fiber into a dispersion machine, and dispersing for 3min at the rotating speed of 2000 r/min;
(3) adding PVC resin and a plasticizer into a stirrer, stirring at 2800r/min until the material temperature is 80 ℃, adding UV-531, an antioxidant 1010, superfine activated calcium carbonate and the material obtained in the step (2), stirring at 2800r/min until the material temperature is 100 ℃, adding a stabilizer and an acrylic PVC processing aid, stirring at 2800r/min until the material temperature is 140 ℃, stirring for 60min, stopping stirring, and discharging when the material temperature is reduced to 40 ℃;
(4) adding the material obtained in the step (3) into a double-screw extruder for melt blending, and carrying out tape casting extrusion, wherein the temperature of each section of the double-screw extruder is as follows: the temperature of the first zone is 185 ℃, the second zone is 185 ℃, the third zone is 190 ℃, the fourth zone is 190 ℃, the head is 195 ℃, and the temperature of the casting cooling roller is 20 ℃, thus obtaining the weather-resistant polymer color-changing film.
Example 2
A preparation method of a weather-resistant polymer color-changing film specifically comprises the following steps:
(1) weighing raw materials, by weight, 110 parts of PVC resin, 30 parts of plasticizer, 4 parts of UV stabilizer, 0.5 part of UV-P, 10100.5 parts of antioxidant, 3 parts of acrylic PVC processing aid, 15 parts of superfine activated calcium carbonate, 10 parts of ceramic fiber and 10 parts of pigment for later use; wherein the plasticizer is a mixture of polyethylene glycol adipate and triethylene glycol diheptanoate with the mass ratio of 5:3, the average molecular weight is 2000-3000, and the pigment is a mixture of titanium dioxide and polymerized phosphorus iron powder with the mass ratio of 3: 2;
(2) adding pigment and ceramic fiber into a dispersion machine, and dispersing for 5min at a rotating speed of 3000 r/min;
(3) adding PVC resin and a plasticizer into a stirrer, stirring at 3500r/min until the material temperature is 90 ℃, adding UV-P, an antioxidant 1010, superfine active calcium carbonate and the material obtained in the step (2), stirring at 3500r/min until the material temperature is 110 ℃, adding a stabilizer and an acrylic PVC processing aid, stirring at 3500r/min until the material temperature is 160 ℃, stirring for 80min, stopping stirring, and discharging when the material temperature is reduced to 50 ℃;
(4) adding the material obtained in the step (3) into a double-screw extruder for melt blending, and carrying out tape casting extrusion, wherein the temperature of each section of the double-screw extruder is as follows: the temperature of the first zone is 195 ℃, the second zone is 195 ℃, the third zone is 200 ℃, the fourth zone is 200 ℃, the head is 205 ℃, and the temperature of the casting cooling roller is 30 ℃ to obtain the weather-resistant polymer color-changing film.
Example 3
A preparation method of a weather-resistant polymer color-changing film specifically comprises the following steps:
(1) weighing raw materials: 100 parts of PVC resin, 20 parts of plasticizer, 3 parts of UV stabilizer, 3 parts of UVP-3270.3 parts, 10760.4 parts of antioxidant, 2 parts of acrylic PVC processing aid, 10 parts of superfine activated calcium carbonate, 8 parts of ceramic fiber and 5 parts of pigment for later use; wherein the plasticizer is a mixture of polyethylene glycol adipate and triethylene glycol diheptanoate with a mass ratio of 4:3, the average molecular weight is 2000-3000, and the pigment is a mixture of titanium dioxide and polymerized phosphorus iron powder with a mass ratio of 1: 1;
(2) adding pigment and ceramic fiber into a dispersion machine, and dispersing for 5min at a rotating speed of 3000 r/min;
(3) adding PVC resin and a plasticizer into a stirrer, stirring at 3500r/min until the material temperature is 90 ℃, adding UVP-327, an antioxidant 1076, superfine active calcium carbonate and the material obtained in the step (2), stirring at 3500r/min until the material temperature is 110 ℃, adding a stabilizer and an acrylic PVC processing aid, stirring at 3500r/min until the material temperature is 160 ℃, stirring for 80min, stopping stirring, and discharging when the material temperature is reduced to 50 ℃;
(4) adding the material obtained in the step (3) into a double-screw extruder for melt blending, and carrying out tape casting extrusion, wherein the temperature of each section of the double-screw extruder is as follows: the temperature of the first zone is 195 ℃, the second zone is 195 ℃, the third zone is 200 ℃, the fourth zone is 200 ℃, the head is 205 ℃, and the temperature of the casting cooling roller is 30 ℃ to obtain the weather-resistant polymer color-changing film.
Comparative example 1
The plasticizer is polyethylene glycol adipate with equal weight, and the rest steps are the same as the example 1;
comparative example 2
The plasticizer was triethylene glycol diheptanoate at an equal weight, and the procedure was the same as in example 1;
examples 1 to 3 and comparative examples 1 to 2 were subjected to weather resistance test
Weather resistance test the product was evaluated according to astm d2244-93, "standard test method for calculating color differences of color coordinates measured by an instrument," color-modified films were placed in a QUV ultraviolet weatherometer, the color characteristics (L, a, and b parameters) of each sample were measured using a color guide 45/0BYKGardner unit using UVB ultraviolet radiation at 200 hours of irradiation, and the change in color (Δ E) was calculated using astm d2244, and the results are shown in table 1;
TABLE 1 results of weather resistance test conducted on examples 1-3 and comparative examples 1-2
From the above, the raw materials are compatible and combined with each other, so that the prepared automobile color-changing film has excellent comprehensive performance, high glossiness and excellent weather resistance.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A weather-resistant polymer color-changing film is characterized by comprising the following raw materials: 90-110 parts of PVC resin, 15-30 parts of plasticizer, 2-4 parts of stabilizer, 0.2-0.5 part of ultraviolet absorber, 0.2-0.5 part of antioxidant, 1-3 parts of processing aid, 5-15 parts of superfine activated calcium carbonate, 5-10 parts of ceramic fiber and 1-10 parts of pigment.
2. The weatherable polymeric color modifying film of claim 1, comprising the following raw materials: 100 parts of PVC resin, 20 parts of plasticizer, 3 parts of stabilizer, 0.3 part of ultraviolet absorber, 0.4 part of antioxidant, 2 parts of processing aid, 10 parts of superfine active calcium carbonate, 8 parts of ceramic fiber and 5 parts of pigment.
3. The weatherable polymer color-changing film according to claim 1 or 2, wherein the plasticizer is a polyester plasticizer and has an average molecular weight of 2000-3000.
4. The weather-resistant polymer color-changing film according to claim 3, wherein the polyester plasticizer is a mixture of polyethylene glycol adipate and triethylene glycol diheptanoate in a mass ratio of 2-5: 3.
5. The weatherable polymeric color-changing film according to claim 1 or 2, wherein the stabilizer is a UV stabilizer, and the antioxidant is 1010 or 1076.
6. The weatherable polymeric color-changing film according to claim 1 or 2, wherein the processing aid is an acrylic type PVC processing aid.
7. The weatherable polymeric color-changing film according to claim 1 or 2, wherein the pigment is a mixture of titanium dioxide and polymerized iron powder, and the mass ratio of the titanium dioxide to the polymerized iron powder is 1-3: 2.
8. The preparation method of the weather-resistant polymer color-changing film is characterized by comprising the following steps:
(1) weighing raw materials of PVC resin, a plasticizer, a stabilizer, an ultraviolet absorber, an antioxidant, a processing aid, superfine activated calcium carbonate, ceramic fiber and a pigment according to parts by weight for later use;
(2) adding the pigment and the ceramic fiber into a dispersion machine, and dispersing for 3-5min at the rotating speed of 2000-3000/min;
(3) adding the PVC resin and the plasticizer into a stirrer, stirring until the material temperature is 80-90 ℃, adding the ultraviolet light absorber, the antioxidant, the superfine active calcium carbonate and the material obtained in the step (2), stirring until the material temperature is 100-110 ℃, adding the stabilizer and the processing aid, stirring until the material temperature is 140-160 ℃, stirring for 60-80min, stopping stirring, and discharging when the material temperature is reduced to 40-50 ℃;
(4) and (4) adding the material obtained in the step (3) into a double-screw extruder for melt blending, and performing tape casting extrusion to obtain the weather-resistant polymer color-changing film.
9. The method as claimed in claim 4, wherein the rotation speed of the stirring in step (3) is 2800-3500 r/min.
10. The method for preparing the weather-resistant polymer color-changing film according to claim 8, wherein the temperatures of the sections of the twin-screw extruder in the step (4) are respectively as follows: the first zone is 185-195 ℃, the second zone is 185-195 ℃, the third zone is 190-200 ℃, the fourth zone is 190-200 ℃, the head is 195-205 ℃, and the temperature of the casting cooling roller is 20-30 ℃.
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| CN114410030A (en) * | 2022-01-20 | 2022-04-29 | 南通慧源塑胶有限公司 | PVC (polyvinyl chloride) film material and preparation method thereof |
| CN114752158A (en) * | 2022-04-06 | 2022-07-15 | 黄山兴伟反光材料有限公司 | Reflective automobile color-changing film and preparation method thereof |
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Application publication date: 20211203 |