CN113956585A - High-adhesion quick-drying PVC white spray painting film and preparation method thereof - Google Patents
High-adhesion quick-drying PVC white spray painting film and preparation method thereof Download PDFInfo
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- 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
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- 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
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- C08J2427/00—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
- C08J2427/02—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
- C08J2427/04—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
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
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- C08K2003/265—Calcium, strontium or barium carbonate
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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Abstract
The invention discloses a high-adhesion quick-drying PVC white spray painting film which comprises the following raw materials in parts by weight: 100 parts of PVC resin, 35-50 parts of plasticizer, 3-5 parts of stabilizer, 1-3 parts of epoxidized soybean oil, 12-15 parts of filler, 0.5-2 parts of pigment, 0.5-2 parts of processing aid and 0.5-1 part of dispersing aid; wherein the PVC resin is prepared from (2-3) by mass: (7-8) mixing the PVC resin A and the PVC resin B, wherein the K value of the PVC resin A is 70, and the K value of the PVC resin B is 65. The white spray-painting film prepared by the method can be printed, has high color reduction degree, vivid printing effect and strong weather resistance, and the ink has high adsorption and diffusion speeds, improves the production efficiency and is suitable for large-scale industrial production.
Description
Technical Field
The invention relates to the technical field of spray painting materials, in particular to a high-adhesion quick-drying PVC white spray painting film and a preparation method thereof.
Background
The spray painting film is an advertisement pattern carrier, patterns are drawn on the spray painting film through a printer, and the spray painting film is pasted at a required position for displaying. The existing building wall advertisement is mostly manufactured by adopting a spray painting machine to spray painting, a spray painted wall spray painting film with bright color and clear patterns is pasted on a wall surface by using glue, the cement wall surface, a lime wall surface, a ceramic tile wall surface, a masonry wall surface, a vehicle body and other surfaces can be directly constructed, the manufacturing cost is low, the tearing and the damage are not easy, and the construction is convenient.
However, the existing spray painting film has the defects of complex drying procedure, low production efficiency and high energy consumption, is poor in durability and adaptability, easily causes the phenomena of fading, surface layer falling and the like under the environments of sun, rain and the like, influences the overall attractiveness of the wall body, and greatly increases the cost in the replacement process after falling.
Therefore, how to provide a high-adhesion quick-drying PVC white inkjet film is a problem that needs to be solved urgently by the technical personnel in the field.
Disclosure of Invention
In view of the above, the invention provides a quick-drying PVC white inkjet film with high adhesion.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high-adhesion quick-drying PVC white spray painting film comprises the following raw materials in parts by weight: 100 parts of PVC resin, 35-50 parts of plasticizer, 3-5 parts of stabilizer, 1-3 parts of epoxidized soybean oil, 12-15 parts of filler, 0.5-2 parts of pigment, 0.5-2 parts of processing aid and 0.5-1 part of dispersing aid;
wherein the PVC resin is prepared from (2-3) by mass: (7-8) mixing the PVC resin A and the PVC resin B, wherein the K value of the PVC resin A is 70, and the K value of the PVC resin B is 65.
PVC resin is a non-crystalline linear high molecular compound, the larger the relative molecular mass, the higher the viscosity number, the better the strength, rigidity, toughness, heat resistance and low temperature resistance of the material, but the worse the molding processability. The reason is that van der Waals attractive force or winding degree between PVC macromolecular chains is correspondingly increased along with the increase of the relative molecular mass of the PVC resin, so that the mechanical property of the material is improved, abnormal weak structures and chain end group structures in the molecular chains are correspondingly reduced, and the heat resistance and weather resistance of the material are improved.
According to the invention, the polymerization degree of the PVC resin with the K value of 65 is about 1000, the polymerization degree of the PVC resin with the K value of 70 is about 1300, and a large amount of experimental researches show that the PVC resin with the larger molecular chain and the PVC resin with the smaller molecular chain are combined, wherein the PVC resin with the larger molecular chain can improve the adsorption force and the quick-drying performance of the spray-painting film, and the PVC resin with the smaller molecular chain enables ink to permeate more easily, so that the quick-drying performance and the adhesion performance are further enhanced.
Preferably, in the high-adhesion quick-drying PVC white spray-painting film, the mass ratio of the PVC resin A to the PVC resin B is 1: 3.
Preferably, in the high-adhesion quick-drying PVC white inkjet film, the filler is a mixture of calcium carbonate and lithium oxide, and the mass ratio of the calcium carbonate to the lithium oxide is 1: (0.05-0.2).
Preferably, in the high-adhesion quick-drying PVC white inkjet film, the mass ratio of calcium carbonate to lithium oxide is 1: 0.1.
the invention uses the mixture of calcium carbonate and lithium oxide as the filler, fully utilizes the characteristics of high specific surface area and small particle size of the calcium carbonate and the porosity of the lithium oxide, and combines the calcium carbonate and the lithium oxide to be used as the filler, thereby further improving the quick drying property of the spray painting film.
The invention also discloses a preparation method of the high-adhesion quick-drying PVC white spray painting film, which comprises the following steps:
(1) mixing the components according to the mass ratio, uniformly stirring in a high-speed mixer, and then performing banburying and plasticizing in an internal mixer for 5-10min until the mixture is in a gel state;
(2) heating to 140 ℃ and 185 ℃, starting the plastic refining machine, respectively carrying out rough refining on the A plastic refining machine and refining on the B plastic refining machine, and then filtering and extruding in the filter;
(3) rolling and molding the extruded material at the temperature of 170-195 ℃ by four rollers or five rollers to obtain a primary spray-painting film;
(4) and (4) embossing, cooling and shaping, rolling and packaging the spray-painting film obtained in the step (3).
Preferably, in the above preparation method of the high-adhesion quick-drying PVC white inkjet printing film, in the step (2), the A plastic refining machine is an open type two-wheel plastic refining machine, wherein the temperature of the 1# rolling machine is 155-170 ℃, and the temperature of the 2# rolling machine is 170-185 ℃.
Preferably, in the preparation method of the high-adhesion quick-drying PVC white inkjet printing film, the B plastic mixing machine in the step (2) is an open plastic mixing machine, and the temperature is 140-155 ℃.
Preferably, in the preparation method of the high-adhesion quick-drying PVC white spray-painting film, the calendering molding in the step (3) is four-roller calendering, the temperature of a No. 1 roller is 185-190 ℃, and the linear speed is 15-17 m/min; the temperature of the 2# roller is 190-; the temperature of the 3# roller is 180 ℃ and 185 ℃, and the linear speed is 20-21 m/min; the temperature of the 4# roller is 175-185 ℃, and the linear speed is 21-23 m/min.
Preferably, in the preparation method of the high-adhesion quick-drying PVC white spray-painting film, the calendering molding in the step (3) is five-roller calendering, the temperature of the No. 1 roller is 185-190 ℃, and the linear speed is 15-17 m/min; the temperature of the 2# roller is 190-; the temperature of the 3# roller is 180 ℃ and 185 ℃, and the linear speed is 20-21 m/min; the temperature of the 4# roller is 175-185 ℃, and the linear speed is 21-23 m/min; the temperature of the 5# roller is 170-175 ℃, and the linear speed is 23-25 m/min.
Preferably, in the preparation method of the high-adhesion quick-drying PVC white inkjet film, the embossing is to emboss the inkjet film into a mirror surface or a frosted surface.
According to the technical scheme, compared with the prior art, the invention discloses a preparation method of a high-adhesion quick-drying PVC white spray-painting film, and the preparation method has the following beneficial effects:
according to the invention, PVC resins with different K values are compounded, so that the adsorption capacity and the permeability of the printing ink can be better enhanced, and the compatibility is enhanced; and the filler consisting of calcium carbonate with small particle size and high specific surface area and porous lithium oxide is combined, so that the drying of the printing ink can be accelerated, and the quick-drying performance of the spray-painting film can be realized. In addition, the white spray painting film prepared by the invention can be printed, has high color reduction degree, vivid printing effect and strong weather resistance, and the ink has high adsorption and diffusion speeds, improves the production efficiency and is suitable for large-scale industrial production.
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 high-adhesion quick-drying PVC white spray painting film comprises the following raw materials in parts by weight: 100 parts of PVC resin, 45 parts of plasticizer, 4 parts of stabilizer, 2 parts of epoxidized soybean oil, 13 parts of filler, 1 part of pigment, 1 part of processing aid and 0.8 part of dispersing aid;
wherein the PVC resin is prepared from the following components in percentage by mass of 1:3, and the K value of the PVC resin A is 70, and the K value of the PVC resin B is 65. The filler is a mixture of calcium carbonate and lithium oxide, and the mass ratio of the calcium carbonate to the lithium oxide is 1: 0.1.
the preparation method of the high-adhesion quick-drying PVC white spray painting film comprises the following steps:
(1) mixing the components according to the mass ratio, uniformly stirring in a high-speed mixer, and then performing banburying and plasticizing in an internal mixer for 8min to obtain gel colloid;
(2) respectively carrying out coarse refining on the gel colloid by a refiner A and refining by a refiner B, and then filtering and extruding in a filter; wherein, the A plastic refining machine is an open type double-wheel plastic refining machine, wherein the temperature of the 1# rolling wheel machine is 155-170 ℃, and the temperature of the 2# rolling wheel machine is 170-185 ℃; the B plastic refining machine is an open plastic refining machine, and the temperature is 140-;
(3) the extruded material is rolled and formed by four rollers or five rollers at the temperature of 170-195 ℃, wherein the rolling and forming is four-roller rolling, the temperature of the 1# roller is 185-190 ℃, and the linear speed is 15-17 m/min; the temperature of the 2# roller is 190-; the temperature of the 3# roller is 180 ℃ and 185 ℃, and the linear speed is 20-21 m/min; the temperature of the 4# roller is 175-185 ℃, the linear speed is 21-23m/min, and a primary spray-painting film is obtained;
(4) and (4) embossing, cooling and shaping, rolling and packaging the spray-painting film obtained in the step (3).
Example 2
A high-adhesion quick-drying PVC white spray painting film comprises the following raw materials in parts by weight: 100 parts of PVC resin, 35 parts of plasticizer, 3 parts of stabilizer, 1 part of epoxidized soybean oil, 12 parts of filler, 0.5 part of pigment, 0.5 part of processing aid and 0.5 part of dispersing aid;
wherein the PVC resin is prepared from the following components in percentage by mass of 1: 4, and the K value of the PVC resin A is 70, and the K value of the PVC resin B is 65. The filler is a mixture of calcium carbonate and lithium oxide, and the mass ratio of the calcium carbonate to the lithium oxide is 1: 0.05.
the preparation method of the high-adhesion quick-drying PVC white spray painting film comprises the following steps:
(1) mixing the components according to the mass ratio, uniformly stirring in a high-speed mixer, and then performing banburying and plasticizing in an internal mixer for 5min to obtain gel colloid;
(2) respectively carrying out coarse refining on the gel colloid by a refiner A and refining by a refiner B, and then filtering and extruding in a filter; wherein, the A plastic refining machine is an open type double-wheel plastic refining machine, wherein the temperature of the 1# rolling wheel machine is 155-170 ℃, and the temperature of the 2# rolling wheel machine is 170-185 ℃; the B plastic refining machine is an open plastic refining machine, and the temperature is 140-;
(3) the extruded material is rolled and formed by four rollers or five rollers at the temperature of 170-195 ℃, wherein the rolling and forming is four-roller rolling, the temperature of the 1# roller is 185-190 ℃, and the linear speed is 15-17 m/min; the temperature of the 2# roller is 190-; the temperature of the 3# roller is 180 ℃ and 185 ℃, and the linear speed is 20-21 m/min; the temperature of the 4# roller is 175-185 ℃, the linear speed is 21-23m/min, and a primary spray-painting film is obtained;
(4) and (4) embossing, cooling and shaping, rolling and packaging the spray-painting film obtained in the step (3).
Example 3
A high-adhesion quick-drying PVC white spray painting film comprises the following raw materials in parts by weight: 100 parts of PVC resin, 50 parts of plasticizer, 5 parts of stabilizer, 3 parts of epoxidized soybean oil, 15 parts of filler, 2 parts of pigment, 2 parts of processing aid and 1 part of dispersing aid;
wherein the PVC resin is prepared from the following components in percentage by mass of 3: 7, wherein the K value of the PVC resin A is 70, and the K value of the PVC resin B is 65. The filler is a mixture of calcium carbonate and lithium oxide, and the mass ratio of the calcium carbonate to the lithium oxide is 1: 0.2.
the preparation method of the high-adhesion quick-drying PVC white spray painting film comprises the following steps:
(1) mixing the components according to the mass ratio, uniformly stirring in a high-speed mixer, and then performing banburying and plasticizing in an internal mixer for 10min to obtain gel colloid;
(2) respectively carrying out coarse refining on the gel colloid by a refiner A and refining by a refiner B, and then filtering and extruding in a filter; wherein, the A plastic refining machine is an open type double-wheel plastic refining machine, wherein the temperature of the 1# rolling wheel machine is 155-170 ℃, and the temperature of the 2# rolling wheel machine is 170-185 ℃; the B plastic refining machine is an open plastic refining machine, and the temperature is 140-;
(3) the extruded material is rolled and formed by four rollers or five rollers at the temperature of 170-195 ℃, wherein the rolling and forming is five-roller rolling, the temperature of the 1# roller is 185-190 ℃, and the linear speed is 15-17 m/min; the temperature of the 2# roller is 190-; the temperature of the 3# roller is 180 ℃ and 185 ℃, and the linear speed is 20-21 m/min; the temperature of the 4# roller is 175-185 ℃, and the linear speed is 21-23 m/min; the temperature of the 5# roller is 170-175 ℃, and the linear speed is 23-25 m/min;
(4) and (4) embossing, cooling and shaping, rolling and packaging the spray-painting film obtained in the step (3).
Comparative example 1
Comparative example 1 is essentially the same as example 1 except that:
the filler is a mixture of calcium carbonate and talcum powder, and the mass ratio of the calcium carbonate to the talcum powder is 1: 0.1.
comparative example 2
Comparative example 2 is essentially the same as example 1 except that:
the PVC resin is a numerical value with single polymerization degree, and the K value of the PVC resin is 70.
Comparative example 3
Comparative example 3 is essentially the same as example 1 except that:
the PVC resin is a numerical value with single polymerization degree, and the K value of the PVC resin is 65.
The inkjet films obtained in examples 1 to 3 and comparative examples 1 to 3 were subjected to a performance test, and the test results are shown in table 1.
Table 1 results of performance testing
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the scheme disclosed by the embodiment, the scheme corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
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. The high-adhesion quick-drying PVC white spray painting film is characterized by comprising the following raw materials in parts by weight: 100 parts of PVC resin, 35-50 parts of plasticizer, 3-5 parts of stabilizer, 1-3 parts of epoxidized soybean oil, 12-15 parts of filler, 0.5-2 parts of pigment, 0.5-2 parts of processing aid and 0.5-1 part of dispersing aid;
wherein the PVC resin is prepared from (2-3) by mass: (7-8) mixing the PVC resin A and the PVC resin B, wherein the K value of the PVC resin A is 70, and the K value of the PVC resin B is 65.
2. The high-adhesion quick-drying PVC white inkjet film according to claim 1, wherein the mass ratio of the PVC resin A to the PVC resin B is 1: 3.
3. The high-adhesion quick-drying PVC white inkjet film according to claim 1, wherein the filler is a mixture of calcium carbonate and lithium oxide, and the mass ratio of the calcium carbonate to the lithium oxide is 1: (0.05-0.2).
4. The high-adhesion quick-drying PVC white inkjet film according to claim 3, wherein the mass ratio of calcium carbonate to lithium oxide is 1: 0.1.
5. the preparation method of the high-adhesion quick-drying PVC white inkjet film according to any one of claims 1 to 4, which is characterized by comprising the following steps:
(1) mixing the components according to the mass ratio, uniformly stirring in a high-speed mixer, and then performing banburying and plasticizing in an internal mixer for 5-10min until the mixture is in a gel state;
(2) heating to 140 ℃ and 185 ℃, starting the plastic refining machine, respectively carrying out rough refining on the A plastic refining machine and refining on the B plastic refining machine, and then filtering and extruding in the filter;
(3) rolling and molding the extruded material at the temperature of 170-195 ℃ by four rollers or five rollers to obtain a primary spray-painting film;
(4) and (4) embossing, cooling and shaping, rolling and packaging the spray-painting film obtained in the step (3).
6. The method for preparing the high adhesion quick-drying PVC white inkjet film according to claim 5, wherein the A plastic refining machine in the step (2) is an open type two-wheel plastic refining machine, wherein the temperature of the 1# rolling machine is 155-170 ℃, and the temperature of the 2# rolling machine is 170-185 ℃.
7. The method for preparing the high adhesion quick-drying PVC white inkjet film according to claim 5 or 6, wherein the B plastic mixing machine in the step (2) is an open plastic mixing machine at a temperature of 140 ℃ and 155 ℃.
8. The method for preparing the high-adhesion quick-drying PVC white inkjet film according to claim 5, wherein the calendering molding in the step (3) is four-roll calendering, the temperature of the No. 1 roll is 185-190 ℃, and the linear speed is 15-17 m/min; the temperature of the 2# roller is 190-; the temperature of the 3# roller is 180 ℃ and 185 ℃, and the linear speed is 20-21 m/min; the temperature of the 4# roller is 175-185 ℃, and the linear speed is 21-23 m/min.
9. The method for preparing the high-adhesion quick-drying PVC white inkjet film according to claim 5, wherein the calendering molding in the step (3) is five-roll calendering, the temperature of the No. 1 roll is 185-190 ℃, and the linear speed is 15-17 m/min; the temperature of the 2# roller is 190-; the temperature of the 3# roller is 180 ℃ and 185 ℃, and the linear speed is 20-21 m/min; the temperature of the 4# roller is 175-185 ℃, and the linear speed is 21-23 m/min; the temperature of the 5# roller is 170-175 ℃, and the linear speed is 23-25 m/min.
10. The preparation method of the high-adhesion quick-drying PVC white inkjet film according to claim 5, wherein the embossing is carried out by embossing the inkjet film into a mirror surface or a frosted surface.
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