WO2018076393A1 - 一种多功能广告贴膜的制备方法 - Google Patents

一种多功能广告贴膜的制备方法 Download PDF

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WO2018076393A1
WO2018076393A1 PCT/CN2016/104908 CN2016104908W WO2018076393A1 WO 2018076393 A1 WO2018076393 A1 WO 2018076393A1 CN 2016104908 W CN2016104908 W CN 2016104908W WO 2018076393 A1 WO2018076393 A1 WO 2018076393A1
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parts
speed
stirring
controlled
stirred
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PCT/CN2016/104908
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English (en)
French (fr)
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徐建
沈一明
陈卫华
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江苏大海塑料股份有限公司
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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
    • C08L27/00—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 a halogen; Compositions of derivatives of such polymers
    • C08L27/02—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 a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/04—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 a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08L27/06—Homopolymers or copolymers of vinyl chloride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • B29D7/01—Films or sheets
    • 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
    • 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
    • C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/16—Applications used for films
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend

Definitions

  • the invention relates to the field of film materials, in particular to a method for preparing a multifunctional advertising film.
  • car foils There are many types of car foils on the market, from the first generation of tea paper to the second generation of explosion-proof membranes, to the third generation of sunscreen insulation films.
  • the car foils are from simple installation, strong sunscreen paper to A certain thermal insulation, sun protection performance, insulation rate between 20% and 60%, UV insulation is about 80% insulation paper, space film, etc., although there are many defects, it is always the target of car chasing.
  • Some automotive film manufacturers have also introduced a variety of automotive-specific foils to meet the needs of a wide range of car owners, such as "magnetron coating”, “micron technology”, “nanotechnology”, “spectral particle technology”.
  • the fifth-generation automotive special film can effectively block UV light by more than 90%, increase the infrared blocking rate to 30%-95%, and the adhesive is stronger, which can reduce the thickness of the film and improve the explosion-proof performance. Since the inorganic composition of automobile glass is relatively simple, the discrimination rate is usually not very high, so the physical evidence is also less used in the identification of physical evidence. However, the inspection value of various functional film properties attached to the automobile glass can increase the inspection value of the automobile glass.
  • the existing automotive film is more concerned about its UV protection performance and high temperature resistance, but pays little attention to its problems such as aging and falling off under long-term ultraviolet radiation and high temperature environment, and its aging performance is related to the service life of the film. Long-term user experience is closely related and deserves more attention.
  • the utility model patent of CN205467711U discloses an automobile film, comprising a film body, the film body comprises a PET protective film, the upper part of the PET protective film is adhered with a silicone coating, and the lower part of the PET protective film is bonded with an anti-adhesion.
  • the aging agent penetrates the mixed layer, and the anti-aging film of the layer structure has problems such as complicated process and general anti-aging effect.
  • the invention patent application disclosed in the publication No. CN105111483A discloses a sunscreen heat insulation automobile film and a preparation method thereof, the automobile film comprises a base layer, and the heat insulation layer is coated on the inner surface of the base layer, wherein the heat insulation layer is mainly composed of Modified potassium hexatitanate whisker, water-based epoxy resin and acrylic resin; anti-ultraviolet layer, coated on the surface of the heat insulation layer; sunscreen layer, coated on the outer surface of the base layer, wherein the sunscreen layer is mainly composed of nanometer
  • the composition consists of cerium oxide, ultraviolet absorbing agent and acrylic resin; the wear-resistant layer is coated on the surface of the sunscreen layer; the protective film layer and the adhesive layer are installed, and the protective film layer is detachably bonded to the surface of the ultraviolet shielding layer through the mounting adhesive layer.
  • the multi-layer anti-aging film has a complicated process and an anti-aging effect. And it is easy to fall off and other issues.
  • the invention patent application published as CN105348750A discloses a heat-insulating and anti-ultraviolet automobile film and a preparation method thereof, which are polyethylene terephthalate, polytrimethylene terephthalate, polyimide, and Molybdenum sulfide, plasticizer, carboxymethyl cellulose, nano silica, ethylene- ⁇ -olefin copolymer, antioxidant and anti-UV anti-aging nanocomposite are used as raw materials.
  • the film has problems such as being expensive.
  • the present invention provides a method for preparing a multifunctional advertising film, comprising the following steps:
  • Step 1 The raw material composition consists of 100 parts of PVC, 15-30 parts of plasticizer, 2-4 parts of bismuth zinc composite stabilizer, 0-40 parts of nano-filler, 0.5-1.5 parts of anti-UV531, 0.1-1 parts.
  • Antioxidant CB 1-2 parts
  • ACR accelerator 0.01-0.05 parts rutile titanium dioxide;
  • Step 2 The above raw material components are respectively metered by a metering device, and then mixed and stirred by a high-speed mixing device, the stirring speed is controlled at 500-1000 rpm, the temperature is controlled at 80-100 ° C, and the time is controlled at 10-30 min. ;
  • Step 3 The mixed composition in the second step is stirred by a cooling stirring device, the stirring speed is controlled at 300-500 rpm, the temperature is controlled at 30-40 ° C, and the time is controlled at 15-25 min;
  • Step 4 The composition obtained in the third step is plasticized by a high-temperature plasticizer, and the plasticizing temperature is controlled at 210 to 250 ° C; and then melt extruded through a screw extruder;
  • Step 5 The mixture extruded in step four is calendered, cooled, and wound to obtain the desired film.
  • the raw material composition comprises 100 parts of PVC, 23 parts of plasticizer, 3 parts of bismuth zinc composite stabilizer, 24 parts of nano filler, 1 part of anti-UV531, 0.5 part of antioxidant CB, 1.5 by mass composition.
  • ACR accelerator 0.03 parts rutile titanium dioxide;
  • the plasticizer is a polyester plasticizer having a molecular weight of 600 to 1000.
  • the nanofiller has a diameter of 0.1 to 1 ⁇ m.
  • the screw extruder is extruded through a roll mill and then subjected to calendering.
  • an inverted L-type five-roll calender is used, wherein the lowermost two rolls are subjected to chrome plating, and the plastic film is calendered by the length of the circumference of the two rolls to complete the calendering process.
  • the high-speed low-speed alternating sectional stirring is adopted, and at least the three-stage stirring process is included, the high-speed stirring speed is controlled at 800-1000 rpm, and the low-speed stirring speed is controlled at 500-700 rpm. .
  • the first-stage stirring of the staged stirring is high-speed stirring, and the stirring time is at least 5 minutes.
  • the stirring process is divided into four sections, the first section is stirred at a high speed for 5-8 minutes, the second section is stirred at a low speed for 3 to 5 minutes, the third section is stirred at a high speed for 4 to 6 minutes, and the fourth stage is stirred at a low speed for 2 to 4 minutes.
  • the stirring process is divided into three sections, the first section is stirred at a high speed for 7 to 12 minutes, the second stage is stirred at a low speed for 4 to 6 minutes, and the third stage is stirred at a high speed for 5 to 8 minutes.
  • the nano filler uses a composite filler, including 20 wt% nano calcium carbonate, 10 wt% calcined clay, and the remainder is diatomaceous earth, and the filler fully combines the migration resistance and ink absorption of diatomaceous earth and nano calcium carbonate.
  • the performance makes the composite filler's ability to adsorb plasticizers greatly improved, and has good migration performance and ink absorption performance.
  • the PVC comprises 60 to 80% by weight of two PVC plastics having a polymerization degree of 800 to 1000 and 20 to 40% by weight and a degree of polymerization of 600 to 800.
  • the polyester plasticizer is used, and the molecular weight thereof is controlled to be 600 or more. In the high temperature environment, the formed plastic film is not easy to migrate due to the large molecular weight, and the plasticizer is lost. It can greatly improve the anti-aging performance of the film and prevent the film from falling off;
  • the particle size is controlled to be 0.1 to 1 ⁇ m, and by increasing the specific surface area thereof, the contact area between the surface of the film and the attached carrier is increased, thereby improving the adhesion strength and further preventing the film from foaming or Fall off
  • a roll mill which can uniformly mix the components, temporarily store the raw materials, and achieve uniform feeding of the calender, so that the raw materials extruded by the screw extruder are stopped on the rolling mill.
  • the tool width is adjusted to control the feed rate of the raw material, so that the produced calendered film has better strength, surface properties and anti-aging properties;
  • the two lower rolls are chrome-plated, which can make the surface of the calendered film smoother;
  • the general five-roll calender plastic film only passes through a half-roll circumference when uniformly rolling
  • the length, the plastic film in the invention is rolled by the length of the circumference of the two rolls, and the calendering process is completed, which can effectively improve the contact time between the plastic film and the roll, especially the chrome roll, so that The film is more uniform and the surface effect is better;
  • the mixture is stirred in stages, and the components are uniformly mixed by high-speed stirring, and then the low-speed stirring is used to physically fuse the components, and the segments are divided into multiple parts or uniform and sufficient between the components. Mixing, reducing problems such as internal microbubbles, and improving the strength and uniform performance of the final film.
  • Figure 1 is a preferred process route diagram of the present invention
  • Figure 2 is a partial schematic view of a preferred calender of the present invention
  • FIG. 1 is a preferred process route diagram of the present invention, and a method for preparing a multifunctional advertising film, comprising the following steps:
  • Step 1 The raw material composition consists of 100 parts of PVC, 23 parts of plasticizer, 3 parts of bismuth zinc composite stabilizer, 24 parts of nano filler, 1 part of anti-UV531, 0.5 part of antioxidant CB, 1.5 parts of ACR accelerator. 0.03 parts of rutile titanium dioxide;
  • Step 2 The above raw material components are respectively metered by the metering device 1 according to the ratio, and then mixed and stirred by the high-speed mixing device 2, the stirring speed is controlled at 500-1000 rpm, the temperature is controlled at 80-100 ° C, and the time is controlled at 10 -30min;
  • Step 3 The mixed composition in the second step is stirred by the cooling stirring device 3, the stirring speed is controlled at 300-500 rpm, the temperature is controlled at 30-40 ° C, and the time is controlled at 15-25 min;
  • Step 4 The composition obtained in the third step is plasticized by a high-temperature plasticizer 4, the plasticizing temperature is controlled at 210 to 250 ° C; and then melt extruded through a screw extruder 5;
  • Step 5 The mixture extruded in the fourth step is passed through a calender 6, a cooling device 7, and a winding device 8 to obtain a desired film.
  • the plasticizer is a polyester plasticizer, and the nanofiller has a diameter of 0.1 to 1 ⁇ m.
  • polyester plasticizer its molecular weight is controlled above 600, so the formation of automotive calendered film in high temperature environment due to molecules The reason for the large amount is that the plasticizer is less likely to migrate and delay the loss of the plasticizer, which can greatly improve the anti-aging property of the film and prevent the film from falling off.
  • the nano filler is controlled to have a particle diameter of 0.1 to 1 ⁇ m, and the contact area between the surface of the film and the attached carrier is increased by increasing the specific surface area thereof, thereby improving the adhesion strength and further preventing the film from foaming or falling off;
  • the screw extruder is extruded through a roll mill 9, and then calendered, and a roll mill is arranged before the calendering process to uniformly mix the components and temporarily store the raw materials to achieve uniform feeding of the calender.
  • the purpose is to make the raw material after the extrusion of the screw extruder stay on the roll machine, adjust the width of the tool according to the feeding demand of the calender, and control the feed rate of the raw material, so that the produced calendered film strength, surface performance, anti-aging performance and the like are further improved. Excellent; as shown in FIG.
  • an inverted L-type five-roll calender is used in the calendering process, wherein the lowermost two rolls (the fourth press roll 11 and the fifth press roll 12) are chrome-plated, and the plastic film 10 passes through two.
  • the calendering process is completed after the rolling of the roll length. Adopting the five-roll calendering process, the two lower rolls are chrome-plated, which can make the surface of the calendered film smoother.
  • the general five-roll calender plastic film only passes through the circumference of a half roll when it is evenly rolled.
  • the plastic film is calendered after the length of the two rolls, and the rolling process is completed, which can effectively improve the contact time between the plastic film and the roll, especially the chrome roll, so that the film is more uniform and the surface effect is better.
  • the high-speed low-speed alternating sectional stirring is adopted, and at least the three-stage stirring process is included, the high-speed stirring speed is controlled at 800-1000 rpm, and the low-speed stirring speed is controlled at 500-700 rpm.
  • the first-stage stirring of the staged stirring is high-speed stirring, and the stirring time is at least 5 minutes.
  • the mixing process is divided into four sections, the first section is stirred at a high speed for 5-8 minutes, the second section is stirred at a low speed for 3 to 5 minutes, the third section is stirred at a high speed for 4 to 6 minutes, and the fourth stage is stirred at a low speed for 2 to 4 minutes.
  • the mixing process is divided into three sections.
  • the first section is stirred at a high speed for 7 to 12 minutes
  • the second stage is stirred at a low speed for 4 to 6 minutes
  • the third stage is stirred at a high speed for 5 to 8 minutes.
  • the mixing and stirring stage the mixing is carried out in stages, and the components are uniformly mixed by high-speed stirring, and then the low-speed stirring is used to physically fuse the components, and the plurality of segments or uniform and sufficient mixing between the components are achieved. Problems such as tiny bubbles inside to improve the strength and uniform performance of the final film.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • FIG. 1 is a preferred process route diagram of the present invention, and a preparation method of a multifunctional advertising film The law includes the following steps:
  • Step 1 The raw material composition consists of 100 parts of PVC, 23 parts of plasticizer, 3 parts of bismuth zinc composite stabilizer, 24 parts of nano filler, 1 part of anti-UV531, 0.5 part of antioxidant CB, 1.5 parts of ACR accelerator. 0.03 parts of rutile type titanium dioxide; the plasticizer is a polyester plasticizer having a molecular weight of 600 to 1000 and a nanofiller having a diameter of 0.1 to 1 ⁇ m.
  • Step 2 The raw material components are respectively metered by the metering device 1 according to the ratio, and then mixed and stirred by the high-speed mixing device 2, the stirring speed is controlled at 900 rpm, the temperature is controlled at 80-100 ° C, and the time is controlled at about 20 min;
  • Step 3 The mixed composition in the second step is stirred by the cooling and stirring device 3, the stirring speed is controlled at about 400 rpm, the temperature is controlled at 30 to 40 ° C, and the time is controlled at 20 min;
  • Step 4 The composition obtained in the third step is plasticized by a high-temperature plasticizer 4, the plasticizing temperature is controlled at 210 to 250 ° C; and then melt extruded through a screw extruder 5;
  • Step 5 The mixture extruded in the fourth step is passed through a calender 6, a cooling device 7, and a winding device 8 to obtain a desired film.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • FIG. 1 is a preferred process route diagram of the present invention, and a method for preparing a multifunctional advertising film, comprising the following steps:
  • Step 1 The raw material composition consists of 100 parts of PVC, 15 parts of plasticizer, 3 parts of bismuth zinc composite stabilizer, 20 parts of nano filler, 1 part of anti-UV531, 0.6 parts of antioxidant CB, 1 part of ACR accelerator. 0.03 parts of rutile type titanium dioxide; the plasticizer is a polyester plasticizer having a molecular weight of 600 to 1000 and a nanofiller having a diameter of 0.1 to 1 ⁇ m. Polyester plasticizer is used, and its molecular weight is controlled above 600.
  • Step 2 The above raw material components are respectively metered by the metering device 1 according to the ratio, and then mixed and stirred by the high-speed mixing device 2, the stirring speed is controlled at 900 rpm, the temperature is controlled at 80-100 ° C, and the time is controlled at 25 min;
  • Step 3 The uniformly mixed composition in the second step is stirred by the cooling stirring device 3, the stirring speed is controlled at 400 rpm, the temperature is controlled at 30-40 ° C, and the time is controlled at 20 min;
  • Step 4 The composition obtained in the third step is plasticized by a high-temperature plasticizer 4, the plasticizing temperature is controlled at 210 to 250 ° C; and then melt extruded through a screw extruder 5;
  • Step 5 The mixture extruded in step four is first passed through a roll mill 9, then passed through a calender 6, and cooled.
  • the device 7 and the winding device 8 obtain the desired film.
  • a five-roll calendering process is employed in which the lowermost two rolls (the fourth roll 11 and the fifth roll 12) are subjected to chrome plating for a longer period of time, and the film thus obtained is more uniform and has a better surface effect.
  • the plastic film 10 is subjected to a calendering process after being calendered by the length of the circumference of the two rolls.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • FIG. 1 is a preferred process route diagram of the present invention, and a method for preparing a multifunctional advertising film, comprising the following steps:
  • Step 1 The raw material composition consists of 100 parts of PVC, 30 parts of plasticizer, 3 parts of bismuth zinc composite stabilizer, 24 parts of nano filler, 1 part of anti-UV531, 0.5 part of antioxidant CB, 1.5 parts of ACR accelerator. 0.03 parts of rutile type titanium dioxide; the plasticizer is a polyester plasticizer having a molecular weight of 600 to 1000 and a nanofiller having a diameter of 0.1 to 1 ⁇ m.
  • Step 2 The raw material components are respectively metered by the metering device 1 according to the ratio, and then mixed and stirred by the high-speed mixing device 2, the stirring speed is controlled at 900 rpm, the temperature is controlled at 80-100 ° C, and the time is controlled at about 20 min;
  • Step 3 The mixed composition in the second step is stirred by the cooling and stirring device 3, the stirring speed is controlled at about 400 rpm, the temperature is controlled at 30 to 40 ° C, and the time is controlled at 20 min;
  • Step 4 The composition obtained in the third step is plasticized by a high-temperature plasticizer 4, the plasticizing temperature is controlled at 210 to 250 ° C; and then melt extruded through a screw extruder 5;
  • Step 5 The mixture extruded in the fourth step is passed through a calender 6, a cooling device 7, and a winding device 8 to obtain a desired film.
  • the high-speed low-speed alternating sectional stirring is adopted, and at least the three-stage stirring process is included, the high-speed stirring speed is controlled at 800-1000 rpm, and the low-speed stirring speed is controlled at 500-700 rpm.
  • the first-stage stirring of the staged stirring is high-speed stirring, and the stirring time is at least 5 minutes.
  • the mixing process is divided into four sections, the first section is stirred at a high speed for 5-8 minutes, the second section is stirred at a low speed for 3 to 5 minutes, the third section is stirred at a high speed for 4 to 6 minutes, and the fourth stage is stirred at a low speed for 2 to 4 minutes.
  • the mixing process is divided into three sections.
  • the first section is stirred at a high speed for 7 to 12 minutes
  • the second stage is stirred at a low speed for 4 to 6 minutes
  • the third stage is stirred at a high speed for 5 to 8 minutes.
  • the staged stirring is adopted, and the components are uniformly mixed by high-speed stirring, and then the low-speed stirring is used to physically integrate the components, and the segments are divided into multiple groups or realized. Uniform and thorough mixing between the parts, reducing problems such as internal microbubbles, and improving the strength and uniform performance of the final film.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • FIG. 1 is a preferred process route diagram of the present invention, and a method for preparing a multifunctional advertising film, comprising the following steps:
  • Step 1 The raw material composition consists of 100 parts of PVC, 18 parts of plasticizer, 3 parts of bismuth zinc composite stabilizer, 24 parts of nano filler, 1 part of anti-UV531, 0.5 part of antioxidant CB, 1.5 parts of ACR accelerator. 0.03 parts of rutile type titanium dioxide; the plasticizer is a polyester plasticizer having a molecular weight of 600 to 1000 and a nanofiller having a diameter of 0.1 to 1 ⁇ m.
  • Step 2 The raw material components are respectively metered by the metering device 1 according to the ratio, and then mixed and stirred by the high-speed mixing device 2, the stirring speed is controlled at 900 rpm, the temperature is controlled at 80-100 ° C, and the time is controlled at about 20 min;
  • Step 3 The mixed composition in the second step is stirred by the cooling and stirring device 3, the stirring speed is controlled at about 400 rpm, the temperature is controlled at 30 to 40 ° C, and the time is controlled at 20 min;
  • Step 4 The composition obtained in the third step is plasticized by a high-temperature plasticizer 4, the plasticizing temperature is controlled at 210 to 250 ° C; and then melt extruded through a screw extruder 5;
  • Step 5 The mixture extruded in the fourth step is passed through a calender 6, a cooling device 7, and a winding device 8 to obtain a desired film.
  • the high-speed low-speed alternating sectional stirring is adopted, and at least the three-stage stirring process is included, the high-speed stirring speed is controlled at 800-1000 rpm, and the low-speed stirring speed is controlled at 500-700 rpm.
  • the first-stage stirring of the staged stirring is high-speed stirring, and the stirring time is at least 5 minutes.
  • the mixing process is divided into four sections, the first section is stirred at a high speed for 5-8 minutes, the second section is stirred at a low speed for 3 to 5 minutes, the third section is stirred at a high speed for 4 to 6 minutes, and the fourth stage is stirred at a low speed for 2 to 4 minutes.
  • the mixing process is divided into three sections.
  • the first section is stirred at a high speed for 7 to 12 minutes
  • the second stage is stirred at a low speed for 4 to 6 minutes
  • the third stage is stirred at a high speed for 5 to 8 minutes.
  • the mixing and stirring stage the mixing is carried out in stages, and the components are uniformly mixed by high-speed stirring, and then the low-speed stirring is used to physically fuse the components, and the plurality of segments or uniform and sufficient mixing between the components are achieved. Problems such as tiny bubbles inside to improve the strength and uniform performance of the final film.
  • FIG. 1 is a preferred process route diagram of the present invention, and a method for preparing a multifunctional advertising film, comprising the following steps:
  • Step 1 The raw material composition consists of 100 parts of PVC, 23 parts of plasticizer, 3 parts of bismuth zinc composite stabilizer, 24 parts of nano filler, 1 part of anti-UV531, 0.5 part of antioxidant CB, 1.5 parts of ACR accelerator. 0.03 parts of rutile titanium dioxide; plasticizer is DOP plasticizer.
  • Step 2 The raw material components are respectively metered by the metering device 1 according to the ratio, and then mixed and stirred by the high-speed mixing device 2, the stirring speed is controlled at 900 rpm, the temperature is controlled at 80-100 ° C, and the time is controlled at about 20 min;
  • Step 3 The mixed composition in the second step is stirred by the cooling and stirring device 3, the stirring speed is controlled at about 400 rpm, the temperature is controlled at 30 to 40 ° C, and the time is controlled at 20 min;
  • Step 4 The composition obtained in the third step is plasticized by a high-temperature plasticizer 4, the plasticizing temperature is controlled at 210 to 250 ° C; and then melt extruded through a screw extruder 5;
  • Step 5 The mixture extruded in the fourth step is passed through a calender 6, a cooling device 7, and a winding device 8 to obtain a desired film.
  • FIG. 1 is a preferred process route diagram of the present invention, and a method for preparing a multifunctional advertising film, comprising the following steps:
  • Step 1 The raw material composition consists of 100 parts of PVC, 10 parts of plasticizer, 3 parts of bismuth zinc composite stabilizer, 24 parts of nano filler, 1 part of anti-UV531, 0.5 part of antioxidant CB, 1.5 parts of ACR accelerator. 0.03 parts of rutile type titanium dioxide; the plasticizer is a polyester plasticizer having a molecular weight of 600 to 1000 and a nanofiller having a diameter of 0.1 to 1 ⁇ m.
  • Step 2 The raw material components are respectively metered by the metering device 1 according to the ratio, and then mixed and stirred by the high-speed mixing device 2, the stirring speed is controlled at 900 rpm, the temperature is controlled at 80-100 ° C, and the time is controlled at about 20 min;
  • Step 3 The mixed composition in the second step is stirred by the cooling and stirring device 3, the stirring speed is controlled at about 400 rpm, the temperature is controlled at 30 to 40 ° C, and the time is controlled at 20 min;
  • Step 4 The composition obtained in the third step is plasticized by a high-temperature plasticizer 4, the plasticizing temperature is controlled at 210 to 250 ° C; and then melt extruded through a screw extruder 5;
  • Step 5 The mixture extruded in the fourth step is passed through a calender 6, a cooling device 7, and a winding device 8 to obtain a desired film.
  • FIG. 1 is a preferred process route diagram of the present invention, and a method for preparing a multifunctional advertising film, comprising the following steps:
  • Step 1 The raw material composition consists of 100 parts of PVC, 40 parts of plasticizer, 3 parts of bismuth zinc composite stabilizer, 24 parts of nano filler, 1 part of anti-UV531, 0.5 part of antioxidant CB, 1.5 parts of ACR accelerator. 0.03 parts of rutile type titanium dioxide; the plasticizer is a polyester plasticizer having a molecular weight of 600 to 1000 and a nanofiller having a diameter of 0.1 to 1 ⁇ m.
  • Step 2 The raw material components are respectively metered by the metering device 1 according to the ratio, and then mixed and stirred by the high-speed mixing device 2, the stirring speed is controlled at 900 rpm, the temperature is controlled at 80-100 ° C, and the time is controlled at about 20 min;
  • Step 3 The mixed composition in the second step is stirred by the cooling and stirring device 3, the stirring speed is controlled at about 400 rpm, the temperature is controlled at 30 to 40 ° C, and the time is controlled at 20 min;
  • Step 4 The composition obtained in the third step is plasticized by a high-temperature plasticizer 4, the plasticizing temperature is controlled at 210 to 250 ° C; and then melt extruded through a screw extruder 5;
  • Step 5 The mixture extruded in the fourth step is passed through a calender 6, a cooling device 7, and a winding device 8 to obtain a desired film.
  • the above four groups of examples and three sets of comparative examples were tested for anti-ultraviolet, anti-migration and ink anti-friction properties.
  • the anti-migration property was mainly tested by the quality loss after use, and was felt by using it after use and after one year of use. The appearance was observed, and the rubbing resistance of the ink was measured by a laboratory rub resistance tester (RUB TESTER, SMT, Japan), and two sheets of paper used in the experiment, one of which was the film obtained in the examples or the comparative examples, 1 Zhang is an ordinary coated paper, so that the two sheets of paper are rubbed 20 times each other, and then the change of the gloss of the film is measured to indicate the performance, and the results are as follows:
  • the automobile film prepared by the method of the invention not only has excellent ultraviolet resistance, but also has been used for one year in automobiles, and the surface appearance performance after exposure to high temperature environment is obviously superior to that in the comparative example. And the mass loss is significantly smaller than the film in the comparative example.
  • the phenomenon of hardening and yellowing in the comparative examples was caused by the migration of plasticizer in the film in the high temperature environment, and the bubble and shedding problem in the third case was due to the film being too soft and its own bonding effect. Caused by the difference.
  • the gloss in the examples is also significantly worse than that in the comparative example.
  • the DOP plasticizer was used in the first comparative example. Due to the small molecular weight of the plasticizer, obvious yellowing and hardening occurred after one year of use, and the polyester plasticizer with insufficient amount was used in the second comparative example. Since the plasticizing dose used is too small, the final calendered film is poor in plasticity and hard, while in the third comparative example, an excessive amount of polyester plasticizer is used, and the obtained film is soft, and peeling occurs after a period of use. If the plasticizer is used too much or too little, it will affect the appearance of the film after using it for a period of time.

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Abstract

一种多功能广告贴膜的制备方法，包括如下步骤：原料配方按质量组成包括100份PVC、15-30份增塑剂、2-4份钡锌复合稳定剂、0-40份纳米填充剂、0.5-1.5份抗UV531、0.1-1份抗氧化剂CB、1-2份ACR促进剂、0.01-0.05份金红石型钛白粉；将上述原料分别经过计量装置（1）计量，高速混合装置（2）进行混合搅拌，冷却搅拌装置（3）搅拌，高温塑化机（4）进行塑化，螺杆挤出机（5）熔融挤出，再经压延、冷却、卷取得到所需要的贴膜。所述方法能大幅度提高贴膜的抗老化性能且能够防止贴膜脱落。

Description

一种多功能广告贴膜的制备方法 技术领域
本发明涉及贴膜材料领域，尤其涉及一种多功能广告贴膜的制备方法。
背景技术
现在市场上出售的汽车贴膜种类很多，从第一代的茶纸到第二代的防爆膜，再到第三代的防晒隔热膜，汽车贴膜从安装简单，遮光性强的太阳纸到具有一定的隔热、防晒性能，隔热率在20％至60％之间，隔紫外线为80％左右隔热纸、太空膜等，尽管存在很多缺陷，却始终是车族追逐的靶点。有些汽车贴膜厂家还推出了功能各异的汽车专用贴膜，满足广大有车族需求，如“磁控镀膜”、“微米技术”、“纳米技术”、“光谱微粒子技术”等。第五代汽车专用贴膜，能有效阻隔紫外线达90％以上，红外线阻隔率提高到30％-95％，且胶的粘性更强，从而可达到既降低膜的厚度又提高防爆性能的作用。由于汽车玻璃的无机成分较简单，通常区分率也不是很高，所以物证鉴定中也较少用该类物证。但是通过汽车玻璃上贴附的各种功能贴膜特性的检验分析，可增加汽车玻璃的检验价值。
现有的汽车贴膜更多的是关注其防紫外线性能、耐高温性能，但很少关注其在长时间紫外线照射及高温环境下的老化脱落等问题，而其老化性能却与贴膜的使用寿命和长时间的用户体验密切相关，值得更多的关注。
如公告号为CN205467711U的实用新型专利公开了一种汽车贴膜，包括贴膜本体，贴膜本体包括PET保护膜，所述PET保护膜上部粘接有硅胶涂层，所述PET保护膜下部粘接有抗老化剂渗透混合层，这种层结构的抗老化贴膜存在工艺复杂，抗老化效果一般等问题。
又如公开号为CN105111483A的发明专利申请公开了一种防晒隔热汽车贴膜及其制备方法，汽车贴膜包括基体层；隔热层，涂布于基体层的内表面，其中，隔热层主要由改性六钛酸钾晶须、水性环氧树脂以及丙烯酸树脂组成；抗紫外线层，涂布于隔热层表面；防晒层，涂布于基体层的外表面，其中，防晒层主要由纳米二氧化铈、紫外吸收剂以及丙烯酸树脂组成；耐磨层，涂布于防晒层表面；保护膜层以及安装胶层，保护膜层通过安装胶层可分离地粘接于防紫外线层表面。这种多层结构的抗老化贴膜存在工艺复杂，抗老化效果一般， 而且容易脱落等问题。
再如公开号为CN105348750A的发明专利申请公开了一种隔热防紫外线汽车贴膜及其制备方法，以聚对苯二甲酸乙二醇酯、聚对苯二甲酸丙二醇酯、聚酰亚胺、二硫化钼、增塑剂、羧甲基纤维素、纳米二氧化硅、乙烯-α-烯烃共聚物、抗氧化剂和抗紫外耐老化纳米复合材料为原料。该贴膜存在价格昂贵等问题。
发明内容
为克服现有技术中汽车贴膜多层结构工艺复杂，耐老化性能差，容易脱落等问题，本发明提供了一种多功能广告贴膜的制备方法，包括如下步骤：
步骤一：原料配方按质量组成包括100份PVC、15-30份增塑剂、2-4份钡锌复合稳定剂、0-40份纳米填充剂、0.5-1.5份抗UV531、0.1-1份抗氧化剂CB、1-2份ACR促进剂、0.01-0.05份金红石型钛白粉；
步骤二：将上述原料组份按配比分别经过计量装置计量，再经过高速混合装置进行混合搅拌，搅拌速度控制在500-1000转/min，温度控制在80～100℃，时间控制在10-30min；
步骤三：将步骤二中混合均匀的组合物经冷却搅拌装置搅拌，搅拌速度控制在300-500转/min，温度控制在30～40℃，时间控制在15-25min；
步骤四：将步骤三中得到的组合物经高温塑化机进行塑化，塑化温度控制在210～250℃；再经螺杆挤出机熔融挤出；
步骤五：将步骤四挤出的混合物经压延、冷却、卷取得到所需要的贴膜。
进一步，所述步骤一中，原料配方按质量组成包括100份PVC、23份增塑剂、3份钡锌复合稳定剂、24份纳米填充剂、1份抗UV531、0.5份抗氧化剂CB、1.5份ACR促进剂、0.03份金红石型钛白粉；
进一步，所述增塑剂为聚酯增塑剂，其分子量为600～1000。
进一步，所述纳米填充剂的直径为0.1-1μm。
进一步，所述步骤四中螺杆挤出机挤出后先经过轧辊机，然后再经过压延。
进一步，所述压延过程中采用倒L型五辊压延机，其中位于最下方两个轧辊经镀铬处理，塑料薄膜经过两个轧辊周长长度的压延后完成压延过程。
进一步，所述步骤二中混合搅拌时，采用高速低速交替分段式搅拌，至少包括三段搅拌过程，高速搅拌速度控制在800～1000转/min，低速搅拌速度控制在500～700转/min。
进一步，分段式搅拌第一段搅拌为高速搅拌，搅拌时间至少为5min。
进一步，搅拌过程分为四段，第一段高速搅拌5～8min，第二段低速搅拌3～5min，第三段高速搅拌4～6min，第四段低速搅拌2～4min。
进一步，搅拌过程分为三段，第一段高速搅拌7～12min，第二段低速搅拌4～6min，第三段高速搅拌5～8min。
进一步，所述纳米填充剂采用复合填料，包括20wt％纳米碳酸钙、10wt％煅烧陶土，剩余部分为硅藻土，该填充剂充分结合了硅藻土和纳米碳酸钙的耐迁移性能和吸墨性能，使得复合填料吸附增塑剂能力大幅提升，并具有良好的迁移性能和吸墨性能。
进一步，所述PVC包括60～80wt％的聚合度在800～1000和20～40wt％的聚合度为600～800的两种PVC塑料。
与现有技术相比，本发明的有益效果是：
(1)采用聚酯增塑剂，其分子量控制在600以上，这样形成的汽车压延贴膜在高温环境下，由于分子量较大的原因，增塑剂不易发生迁移，延缓增塑剂的流失，这样可大幅度提高贴膜的抗老化性能，防止贴膜脱落；
(2)采用纳米填充剂，其粒径控制在0.1～1μm，通过增加其比表面积，从而增加贴膜表面与贴附载体之间的接触面积，从而提高贴附强力，进一步防止了贴膜起泡或脱落；
(3)在压延工艺之前设轧辊机，可起到均匀混合各组份，临时存储原料，实现对压延机均匀供料的目的，使得螺杆挤出机挤出后的原料在轧辊机上进行停留，根据压延机给料需求调节刀具宽度，控制原料供给速度，这样使得生产出来的压延膜强度、表面性能、抗老化性能等更优；
(4)采用五辊压延工艺，位于最下方两个轧辊经镀铬处理，这样可以使经压延后的薄膜表面更加光滑；一般的五辊压延机塑料薄膜在均匀轧辊时只经过一个半轧辊周长长度，本发明中塑料薄膜经过两个轧辊周长长度的压延后完成压延过程，可有效提高塑料薄膜与轧辊，特别是镀铬轧辊的接触时间，这样得 到的薄膜更加均匀，表面效果更佳；
(5)在混合搅拌阶段采用分段式搅拌，高速搅拌将各组份混合均匀，再配合低速搅拌使得组份之间进行物理融合，多次分段或实现各组份之间的均匀及充分混合，减少内部微小气泡等问题，提高最终贴膜的强度和均匀性能。
附图说明
图1是本发明较佳之工艺路线图；
图2是本发明较佳之压延机局部示意图；
其中，1、计量装置；2、高速混合装置；3、冷却搅拌装置；4、高温塑化机；5、螺杆挤出机；6、压延机；7、冷却装置；8、卷曲装置；9、轧辊机；10、塑料薄膜；11、第四轧辊；12、第五轧辊。
具体实施方式
以下结合附图和实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本发明，并不用于限定本发明。
如图1所述是本发明较佳之工艺路线图，一种多功能广告贴膜的制备方法，包括如下步骤：
步骤一：原料配方按质量组成包括100份PVC、23份增塑剂、3份钡锌复合稳定剂、24份纳米填充剂、1份抗UV531、0.5份抗氧化剂CB、1.5份ACR促进剂、0.03份金红石型钛白粉；
步骤二：将上述原料组份按配比分别经过计量装置1计量，再经过高速混合装置2进行混合搅拌，搅拌速度控制在500-1000转/min，温度控制在80～100℃，时间控制在10-30min；
步骤三：将步骤二中混合均匀的组合物经冷却搅拌装置3搅拌，搅拌速度控制在300-500转/min，温度控制在30～40℃，时间控制在15-25min；
步骤四：将步骤三中得到的组合物经高温塑化机4进行塑化，塑化温度控制在210～250℃；再经螺杆挤出机5熔融挤出；
步骤五：将步骤四挤出的混合物经压延机6、冷却装置7、卷取装置8得到所需要的贴膜。
增塑剂为聚酯增塑剂，纳米填充剂的直径为0.1-1μm。采用聚酯增塑剂，其分子量控制在600以上，这样形成的汽车压延贴膜在高温环境下，由于分子 量较大的原因，增塑剂不易发生迁移，延缓增塑剂的流失，这样可大幅度提高贴膜的抗老化性能，防止贴膜脱落。采用纳米填充剂，其粒径控制在0.1～1μm，通过增加其比表面积，从而增加贴膜表面与贴附载体之间的接触面积，从而提高贴附强力，进一步防止了贴膜起泡或脱落；
步骤四中螺杆挤出机挤出后先经过轧辊机9，然后再经过压延，在压延工艺之前设轧辊机，可起到均匀混合各组份，临时存储原料，实现对压延机均匀供料的目的，使得螺杆挤出机挤出后的原料在轧辊机上进行停留，根据压延机给料需求调节刀具宽度，控制原料供给速度，这样使得生产出来的压延膜强度、表面性能、抗老化性能等更优；如图2所示，压延过程中采用倒L型五辊压延机，其中位于最下方两个轧辊(第四压辊11和第五压辊12)经镀铬处理，塑料薄膜10经过两个轧辊周长长度的压延后完成压延过程。采用五辊压延工艺，位于最下方两个轧辊经镀铬处理，这样可以使经压延后的薄膜表面更加光滑；一般的五辊压延机塑料薄膜在均匀轧辊时只经过一个半轧辊周长长度，本发明中塑料薄膜经过两个轧辊周长长度的压延后完成压延过程，可有效提高塑料薄膜与轧辊，特别是镀铬轧辊的接触时间，这样得到的薄膜更加均匀，表面效果更佳。
步骤二中混合搅拌时，采用高速低速交替分段式搅拌，至少包括三段搅拌过程，高速搅拌速度控制在800～1000转/min，低速搅拌速度控制在500～700转/min。
分段式搅拌第一段搅拌为高速搅拌，搅拌时间至少为5min。
搅拌过程分为四段，第一段高速搅拌5～8min，第二段低速搅拌3～5min，第三段高速搅拌4～6min，第四段低速搅拌2～4min。
搅拌过程分为三段，第一段高速搅拌7～12min，第二段低速搅拌4～6min，第三段高速搅拌5～8min。在混合搅拌阶段采用分段式搅拌，高速搅拌将各组份混合均匀，再配合低速搅拌使得组份之间进行物理融合，多次分段或实现各组份之间的均匀及充分混合，减少内部微小气泡等问题，提高最终贴膜的强度和均匀性能。
实施例一：
如图1所述是本发明较佳之工艺路线图，一种多功能广告贴膜的制备方 法，包括如下步骤：
步骤一：原料配方按质量组成包括100份PVC、23份增塑剂、3份钡锌复合稳定剂、24份纳米填充剂、1份抗UV531、0.5份抗氧化剂CB、1.5份ACR促进剂、0.03份金红石型钛白粉；增塑剂为聚酯增塑剂，其分子量为600～1000，纳米填充剂的直径为0.1-1μm。
步骤二：将上述原料组份按配比分别经过计量装置1计量，再经过高速混合装置2进行混合搅拌，搅拌速度控制在900转/min，温度控制在80～100℃，时间控制在20min左右；
步骤三：将步骤二中混合均匀的组合物经冷却搅拌装置3搅拌，搅拌速度控制在400转/min左右，温度控制在30～40℃，时间控制在20min；
步骤四：将步骤三中得到的组合物经高温塑化机4进行塑化，塑化温度控制在210～250℃；再经螺杆挤出机5熔融挤出；
步骤五：将步骤四挤出的混合物经压延机6、冷却装置7、卷取装置8得到所需要的贴膜。
实施例二：
如图1所述是本发明较佳之工艺路线图，一种多功能广告贴膜的制备方法，包括如下步骤：
步骤一：原料配方按质量组成包括100份PVC、15份增塑剂、3份钡锌复合稳定剂、20份纳米填充剂、1份抗UV531、0.6份抗氧化剂CB、1份ACR促进剂、0.03份金红石型钛白粉；增塑剂为聚酯增塑剂，其分子量为600～1000，纳米填充剂的直径为0.1-1μm。采用聚酯增塑剂，其分子量控制在600以上。
步骤二：将上述原料组份按配比分别经过计量装置1计量，再经过高速混合装置2进行混合搅拌，搅拌速度控制在900转/min，温度控制在80～100℃，时间控制在25min；
步骤三：将步骤二中混合均匀的组合物经冷却搅拌装置3搅拌，搅拌速度控制在400转/min，温度控制在30～40℃，时间控制在20min；
步骤四：将步骤三中得到的组合物经高温塑化机4进行塑化，塑化温度控制在210～250℃；再经螺杆挤出机5熔融挤出；
步骤五：将步骤四挤出的混合物先经过轧辊机9，然后再经压延机6、冷却 装置7、卷取装置8得到所需要的贴膜。如图2所述，采用五辊压延工艺，位于最下方两个轧辊(第四轧辊11和第五轧辊12)经镀铬处理，时间，这样得到的薄膜更加均匀，表面效果更佳。塑料薄膜10经过两个轧辊周长长度的压延后完成压延过程。
实施例三：
如图1所述是本发明较佳之工艺路线图，一种多功能广告贴膜的制备方法，包括如下步骤：
步骤一：原料配方按质量组成包括100份PVC、30份增塑剂、3份钡锌复合稳定剂、24份纳米填充剂、1份抗UV531、0.5份抗氧化剂CB、1.5份ACR促进剂、0.03份金红石型钛白粉；增塑剂为聚酯增塑剂，其分子量为600～1000，纳米填充剂的直径为0.1-1μm。
步骤二：将上述原料组份按配比分别经过计量装置1计量，再经过高速混合装置2进行混合搅拌，搅拌速度控制在900转/min，温度控制在80～100℃，时间控制在20min左右；
步骤三：将步骤二中混合均匀的组合物经冷却搅拌装置3搅拌，搅拌速度控制在400转/min左右，温度控制在30～40℃，时间控制在20min；
步骤四：将步骤三中得到的组合物经高温塑化机4进行塑化，塑化温度控制在210～250℃；再经螺杆挤出机5熔融挤出；
步骤五：将步骤四挤出的混合物经压延机6、冷却装置7、卷取装置8得到所需要的贴膜。
步骤二中混合搅拌时，采用高速低速交替分段式搅拌，至少包括三段搅拌过程，高速搅拌速度控制在800～1000转/min，低速搅拌速度控制在500～700转/min。
分段式搅拌第一段搅拌为高速搅拌，搅拌时间至少为5min。
搅拌过程分为四段，第一段高速搅拌5～8min，第二段低速搅拌3～5min，第三段高速搅拌4～6min，第四段低速搅拌2～4min。
搅拌过程分为三段，第一段高速搅拌7～12min，第二段低速搅拌4～6min，第三段高速搅拌5～8min。在混合搅拌阶段采用分段式搅拌，高速搅拌将各组份混合均匀，再配合低速搅拌使得组份之间进行物理融合，多次分段或实现各组 份之间的均匀及充分混合，减少内部微小气泡等问题，提高最终贴膜的强度和均匀性能。
实施例四：
如图1所述是本发明较佳之工艺路线图，一种多功能广告贴膜的制备方法，包括如下步骤：
步骤一：原料配方按质量组成包括100份PVC、18份增塑剂、3份钡锌复合稳定剂、24份纳米填充剂、1份抗UV531、0.5份抗氧化剂CB、1.5份ACR促进剂、0.03份金红石型钛白粉；增塑剂为聚酯增塑剂，其分子量为600～1000，纳米填充剂的直径为0.1-1μm。
步骤二：将上述原料组份按配比分别经过计量装置1计量，再经过高速混合装置2进行混合搅拌，搅拌速度控制在900转/min，温度控制在80～100℃，时间控制在20min左右；
步骤三：将步骤二中混合均匀的组合物经冷却搅拌装置3搅拌，搅拌速度控制在400转/min左右，温度控制在30～40℃，时间控制在20min；
步骤四：将步骤三中得到的组合物经高温塑化机4进行塑化，塑化温度控制在210～250℃；再经螺杆挤出机5熔融挤出；
步骤五：将步骤四挤出的混合物经压延机6、冷却装置7、卷取装置8得到所需要的贴膜。
步骤二中混合搅拌时，采用高速低速交替分段式搅拌，至少包括三段搅拌过程，高速搅拌速度控制在800～1000转/min，低速搅拌速度控制在500～700转/min。
分段式搅拌第一段搅拌为高速搅拌，搅拌时间至少为5min。
搅拌过程分为四段，第一段高速搅拌5～8min，第二段低速搅拌3～5min，第三段高速搅拌4～6min，第四段低速搅拌2～4min。
搅拌过程分为三段，第一段高速搅拌7～12min，第二段低速搅拌4～6min，第三段高速搅拌5～8min。在混合搅拌阶段采用分段式搅拌，高速搅拌将各组份混合均匀，再配合低速搅拌使得组份之间进行物理融合，多次分段或实现各组份之间的均匀及充分混合，减少内部微小气泡等问题，提高最终贴膜的强度和均匀性能。
对比例一：
如图1所述是本发明较佳之工艺路线图，一种多功能广告贴膜的制备方法，包括如下步骤：
步骤一：原料配方按质量组成包括100份PVC、23份增塑剂、3份钡锌复合稳定剂、24份纳米填充剂、1份抗UV531、0.5份抗氧化剂CB、1.5份ACR促进剂、0.03份金红石型钛白粉；增塑剂为DOP增塑剂。
步骤二：将上述原料组份按配比分别经过计量装置1计量，再经过高速混合装置2进行混合搅拌，搅拌速度控制在900转/min，温度控制在80～100℃，时间控制在20min左右；
步骤三：将步骤二中混合均匀的组合物经冷却搅拌装置3搅拌，搅拌速度控制在400转/min左右，温度控制在30～40℃，时间控制在20min；
步骤四：将步骤三中得到的组合物经高温塑化机4进行塑化，塑化温度控制在210～250℃；再经螺杆挤出机5熔融挤出；
步骤五：将步骤四挤出的混合物经压延机6、冷却装置7、卷取装置8得到所需要的贴膜。
对比例二：
如图1所述是本发明较佳之工艺路线图，一种多功能广告贴膜的制备方法，包括如下步骤：
步骤一：原料配方按质量组成包括100份PVC、10份增塑剂、3份钡锌复合稳定剂、24份纳米填充剂、1份抗UV531、0.5份抗氧化剂CB、1.5份ACR促进剂、0.03份金红石型钛白粉；增塑剂为聚酯增塑剂，其分子量为600～1000，纳米填充剂的直径为0.1-1μm。
步骤二：将上述原料组份按配比分别经过计量装置1计量，再经过高速混合装置2进行混合搅拌，搅拌速度控制在900转/min，温度控制在80～100℃，时间控制在20min左右；
步骤三：将步骤二中混合均匀的组合物经冷却搅拌装置3搅拌，搅拌速度控制在400转/min左右，温度控制在30～40℃，时间控制在20min；
步骤四：将步骤三中得到的组合物经高温塑化机4进行塑化，塑化温度控制在210～250℃；再经螺杆挤出机5熔融挤出；
步骤五：将步骤四挤出的混合物经压延机6、冷却装置7、卷取装置8得到所需要的贴膜。
对比例三：
如图1所述是本发明较佳之工艺路线图，一种多功能广告贴膜的制备方法，包括如下步骤：
步骤一：原料配方按质量组成包括100份PVC、40份增塑剂、3份钡锌复合稳定剂、24份纳米填充剂、1份抗UV531、0.5份抗氧化剂CB、1.5份ACR促进剂、0.03份金红石型钛白粉；增塑剂为聚酯增塑剂，其分子量为600～1000，纳米填充剂的直径为0.1-1μm。
步骤二：将上述原料组份按配比分别经过计量装置1计量，再经过高速混合装置2进行混合搅拌，搅拌速度控制在900转/min，温度控制在80～100℃，时间控制在20min左右；
步骤三：将步骤二中混合均匀的组合物经冷却搅拌装置3搅拌，搅拌速度控制在400转/min左右，温度控制在30～40℃，时间控制在20min；
步骤四：将步骤三中得到的组合物经高温塑化机4进行塑化，塑化温度控制在210～250℃；再经螺杆挤出机5熔融挤出；
步骤五：将步骤四挤出的混合物经压延机6、冷却装置7、卷取装置8得到所需要的贴膜。
将上述四组实施例和三组对比例进行抗紫外线、抗迁移性和油墨耐摩擦性能测试，抗迁移性主要通过检测使用后质量损失情况，并通过在使用时及使用1年后对其手感外观进行观察，油墨耐摩擦性的测定采用实验室耐摩擦测定仪(RUB TESTER,SMT,日本)进行，实验中采用的2张纸，其中1张为实施例或对比例中得到的贴膜，1张是普通的涂布纸，让这2张纸面互相刮磨20次，再经过测定贴膜光泽度的变化来表示该项性能，得到结果如下：
Figure PCTCN2016104908-appb-000001
Figure PCTCN2016104908-appb-000002
从检测结果可以看出，采用本发明方法制备得到的汽车贴膜不仅具有优异的抗紫外线性能，而且其在汽车上使用1年，经高温环境暴晒后表面出现的性能明显优于对比例中的贴膜，而且质量损失明显小于对比例中的贴膜。对比例中出现变硬、变黄等现象均是由贴膜中增塑剂在光照高温环境中出现迁移等造成的，而对比例三中的气泡和脱落问题是由于贴膜过于柔软，本身贴合效果差造成的。
此外，贴膜在进行油墨耐摩擦测定后，实施例中的光泽度也明显要比对比例中的差，光泽度越差表明其对油墨黏结料的需求量也越大，表面的吸墨性能越好。
对比例一中采用的是DOP增塑剂，由于增塑剂分子量较小，使用1年后出现了明显的变黄变硬现象，对比例二中采用的是份量不足的聚酯增塑剂，由于使用的增塑剂量过少，最终得到的压延膜塑性差，偏硬，而对比例三中采用的是过量的聚酯增塑剂，得到的薄膜偏软，使用一段时间后即出现脱落现象，增塑剂使用量过多过少均会影响薄膜使用一段时间后的外观效果。
上述说明示出并描述了本发明的优选实施例，如前所述，应当理解本发明并非局限于本文所披露的形式，不应看作是对其他实施例的排除，而可用于各种其他组合、修改和环境，并能够在本文所述发明构想范围内，通过上述教导或相关领域的技术或知识进行改动。而本领域人员所进行的改动和变化不脱离本发明的精神和范围，则都应在本发明所附权利要求的保护范围内。

Claims (10)

  1. 一种多功能广告贴膜的制备方法，其特征在于，包括如下步骤：
    步骤一：原料配方按质量组成包括100份PVC、15-30份增塑剂、2-4份钡锌复合稳定剂、0-40份纳米填充剂、0.5-1.5份抗UV531、0.1-1份抗氧化剂CB、1-2份ACR促进剂、0.01-0.05份金红石型钛白粉；
    步骤二：将上述原料组份按配比分别经过计量装置计量，再经过高速混合装置进行混合搅拌，搅拌速度控制在500-1000转/min，温度控制在80～100℃，时间控制在10-30min；
    步骤三：将步骤二中混合均匀的组合物经冷却搅拌装置搅拌，搅拌速度控制在300-500转/min，温度控制在30～40℃，时间控制在15-25min；
    步骤四：将步骤三中得到的组合物经高温塑化机进行塑化，塑化温度控制在210～250℃；再经螺杆挤出机熔融挤出；
    步骤五：将步骤四挤出的混合物经压延、冷却、卷取得到所需要的贴膜。
  2. 如权利要求1所述的一种多功能广告贴膜的制备方法，其特征在于，所述步骤一中，原料配方按质量组成包括100份PVC、23份增塑剂、3份钡锌复合稳定剂、24份纳米填充剂、1份抗UV531、0.5份抗氧化剂CB、1.5份ACR促进剂、0.03份金红石型钛白粉；
  3. 如权利要求1所述的一种多功能广告贴膜的制备方法，其特征在于，所述增塑剂为聚酯增塑剂，其分子量为600～1000。
  4. 如权利要求1所述的一种多功能广告贴膜的制备方法，其特征在于，所述纳米填充剂的直径为0.1-1μm。
  5. 如权利要求1所述的一种多功能广告贴膜的制备方法，其特征在于，所述步骤四中螺杆挤出机挤出后先经过轧辊机，然后再经过压延。
  6. 如权利要求5所述的一种多功能广告贴膜的制备方法，其特征在于，所述压延过程中采用倒L型五辊压延机，其中位于最下方两个轧辊经镀铬处理，塑料薄膜经过两个轧辊周长长度的压延后完成压延过程。
  7. 如权利要求1所述的一种多功能广告贴膜的制备方法，其特征在于，所述步骤二中混合搅拌时，采用高速低速交替分段式搅拌，至少包括三段搅拌过程，高速搅拌速度控制在800～1000转/min，低速搅拌速度控制在500～700转/min。
  8. 如权利要求7所述的一种多功能广告贴膜的制备方法，其特征在于，分段式搅拌第一段搅拌为高速搅拌，搅拌时间至少为5min。
  9. 如权利要求8所述的一种多功能广告贴膜的制备方法，其特征在于，搅拌过程分为四段，第一段高速搅拌5～8min，第二段低速搅拌3～5min，第三段高速搅拌4～6min，第四段低速搅拌2～4min。
  10. 如权利要求8所述的一种多功能广告贴膜的制备方法，其特征在于，搅拌过程分为三段，第一段高速搅拌7～12min，第二段低速搅拌4～6min，第三段高速搅拌5～8min。
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