CN103341437B - Functionality super-hydrophobic polypropylene coating preparing method and application thereof - Google Patents
Functionality super-hydrophobic polypropylene coating preparing method and application thereof Download PDFInfo
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Abstract
The invention discloses a functionality super-hydrophobic polypropylene coating preparing method which is achieved through a coating device. The method comprises the following steps that (1) raw materials are mixed, namely isotactic polypropylene and chlorinated polypropylene are mixed, polypropylene-polyethylene copolymers are added, the materials are dissolved in organic solvent, polypropylene solution is obtained; (2) chlorinated rubber is added to the polypropylene solution obtained in the step (1), complete dissolution is carried out, B solution is obtained; (3) precipitant is added to the B solution obtained in the step (2), C solution is obtained; (4) functionality particles are added to the C solution obtained in the step (3), D solution is obtained; (5) the D solution obtained in the step (4) coats a base body through the coating device to form a super-hydrophobic polypropylene coating. The method is low in cost and good in controllability, the prepared coating has good structural stability and adhesive force, film strength is high, mechanical performance is good, and the method is suitable for large-scale production and has great industry application prospect.
Description
Technical field
The present invention relates to a kind of polypropylene material field of blending and modifying, particularly relate to a kind of preparation method and application thereof of functional super-hydrophobic polypropylene coating.
Background technology
Super hydrophobic surface refers to and is greater than 150 ° with the contact angle of water, and the surface that roll angle is less than 10 °.Usually, prepare super hydrophobic surface and have two kinds of approach: a kind of is carry out surface roughening process on the hydrophobic material surface with low-surface-energy; Another kind modifies low-surface energy substance on the surface with certain roughness.The method preparing super hydrophobic surface at present has heterogeneous nucleation means, template, etching method, electrochemical process, self-assembly method, sol-gel method, phase separation method etc.Adopt the expensive fluorine-containing or silane material with low-surface-energy, or need special process equipment or the technological process of complexity, be difficult to industrialization, greatly constrain the practical application of super water surface.
The practical application of super hydrophobic surface must solve two key issues: price is competitive, also will have enough interface bond strengths.In recent years, developed and utilize the phase separation of polymer/(solvent one non-solvent) to prepare super-hydrophobicity polypropylene (PP) thin film technique of diverse microcosmic structure in a large number.Due to polyacrylic nonisothermal crystallization characteristic, require that solution is coated with under thermosol state, substantially the tape casting is adopted at present, dip coating, or apparatus for coating is fixed, applied substrate preheating (flexible parent metal, board-like base material), through shearing, cooling, phase-splitting and/or crystallisation solidification the method for process final drying film forming.Be not suitable for large-area coating, or curved surface coating, greatly constrain the practical application of super hydrophobic surface.Therefore, invent a kind of technology that is simple and that be easy to industrialization to prepare super hydrophobic surface and be very important.
H.Y.Erbil seminar (A.L.Demirel, Y.Avci, O.Mert) on Science periodical, research article (the 299th volume was delivered in 2003,1377-1379 page), they find, isotactic polypropylene (water contact angle the is 156 °) powdered object utilizing the mixed solvent of Isosorbide-5-Nitrae-dimethylbenzene and MEK to obtain to have good ultra-hydrophobicity, but it is the powdered object assembled with nano particle, and mechanical property completely loses.
Chinese patent CN101070408B discloses a kind of method of constructing the super hydrophobic surface with controlled roll angle, can realize preparation that is ultralow and the super-hydrophobic polypropylene material of superelevation roll angle.But the method requires baseplate material surface heating to 100 DEG C-120 DEG C, and when the method prepares low roll angle surface, apply to shear while requiring effectively to control rate of temperature fall, add difficulty and energy consumption that the method applies in the industrial production, and toughness is relative with impact strength poor, adhesive ability is poor, also limit the application of the method.On the other hand, traditional isotactic polypropylene is because degree of crystallinity is high, polarity is very little, molecule repulsion is very strong, and thus toughness is relative with impact strength poor, poor with the adhesive force of baseplate material.
Chinese patent CN101531764B discloses a kind of super-hydrophobic polypropylene film and preparation method thereof.By adding acetone in polypropylene solution in this patent, the tape casting is adopted to obtain polypropylene film, acetone is utilized to induce polypropylene solution to produce microphase-separated, form irregular structure, thus acquisition super hydrophobic surface, the surface of its obtained polypropylene film is the network class Bird's Nest structure of poroid crystallization, and its controllability prepared is poor, and process is more complicated also.
The Chinese Academy of Sciences chemistry patent CN101768396B disclose the polypropylene super-hydrophobic coating of the controlled blending and modifying of a kind of roll angle or the preparation method of film: isotactic polypropylene raw material and chlorinated polypropylene are dissolved as mixed with polymers solution in organic solvent, then as on the substrate of heat, through shearing, cooling, phase-splitting and/crystallisation solidification process final drying.The method requires basal plate preheating equally, although temperature controls at 40 DEG C-60 DEG C, applies to shear simultaneously, adds the difficulty applied in industrial production equally, and for Irregular Boundary Surface, cannot large area produce.
Chinese patent CN102838772A discloses a kind of preparation method of super-hydrophobic polypropylene film: take a certain amount of polypropylene granules, be dissolved in solvent, form the polypropylene solution that concentration is 1-100mg/ml, curtain coating is in substrate, be 75-85% in relative humidity, ethanol vapor concentration is dry super-hydrophobic polypropylene film under the environment of 5-20%.This method needs alcohol vapour particular surroundings, prepares super hydrophobic surface more difficult for large area.
Summary of the invention
First technical problem to be solved by this invention is to provide a kind of preparation method of functional super-hydrophobic polypropylene coating; the method cost is low; controllability is good; the coating prepared has good structural stability and adhesive force; high and the good mechanical property of film-strength; be applicable to large-scale production, there is good prospects for commercial application.
For solving the problems of the technologies described above, the technical solution used in the present invention is to provide a kind of preparation method of functional super-hydrophobic polypropylene coating, described preparation method is completed by following apparatus for coating, and described apparatus for coating comprises and preheats storage tank, precision metering pump and coating car; Described coating car comprises stepper motor, accurate lead screw, extrusion coated mouth, electrically heated rod, range sensor and coating wheel; Described coating car is the casing of lower opening, described stepper motor is arranged at the casing over top of coating car, described extrusion coated mouth is arranged in coating car, described electrically heated rod) be arranged at extrusion coated mouth lip above, the lip of extrusion coated mouth stretches out the casing lower opening of coating car, and described stepper motor is connected with extrusion coated mouth by accurate lead screw; Described storage tank, precision metering pump and the extrusion coated mouth of preheating passes through connection by metal hose, described range sensor is fixed on below the lateral wall of extrusion coated mouth, the contact of range sensor stretches out the casing lower opening of coating car, is provided with coating wheel below the wall box of described coating car; Utilize above-mentioned apparatus for coating to prepare the method for super-hydrophobic polypropylene layer, comprise the steps:
(1) raw material is blended: mixed with chlorinated polypropylene by isotatic polypropylene, adds polypropylene-polyethylene copolymer, is dissolved in dimethylbenzene, obtains polypropylene solution;
(2) add chlorinated rubber in the polypropylene solution obtained to step (1), dissolve completely, obtain B solution;
(3) add precipitating reagent in the B solution obtained to step (2), obtain C solution;
(4) add functional particle in the C solution obtained to step (3), obtain solution D;
(5) solution D that step (4) obtains is coated on matrix, form functional super-hydrophobic polypropylene coating.
Preferably, described apparatus for coating also comprises bail and towing capstan, and the wall box that described bail is installed in coating car is outside, and described towing capstan is connected with bail by rope.
With improvement, described apparatus for coating also comprises electromagnetic absorption device, and described electromagnetic absorption device comprises two blocks of electromagnet, and described electromagnet is arranged at the wall box of coating car.
Preferably, isotatic polypropylene described in step and chlorinated polypropylene in mass ratio 1:1 ratio mixing, the ratio of the mixture of isotatic polypropylene and chlorinated polypropylene and polypropylene-polyethylene copolymer 20:1-10:1 in mass ratio mixes, described organic solvent is selected from one or more in dimethylbenzene, toluene, naphthane and decahydronaphthalene, the described temperature being dissolved in organic solvent is 120-140 DEG C, and the polypropylene solution concentration of formation is 50-100mg/ml.
Preferably, the amount adding chlorinated rubber described in step (2) is the 30%-50% of polypropylene granules quality, preferred 37%-40%.
Preferably, add the 5-20% of amount for polypropylene liquor capacity described in step (1) of precipitating reagent described in step (3), described precipitating reagent is selected from cyclohexanone, isopropyl alcohol, acetone or MEK.
Preferably, step (4) described functional particle be selected from the synthesis of Stober method nano silicon concentrate, through silane coupler modified Nano particles of silicon dioxide, through silane coupler modified titanium dioxide nano-particle, through silane coupler modified calcium carbonate nano particle and one or several in silane coupler modified Nano silver grain, the diameter of particle is 7 ~ 200nm, and addition is the 0-1.5% of feed liquid solid content.
Preferably, step 5) thickness of super-hydrophobic polypropylene coating that formed is 25-170 μm, roll angle size is 0 ° ~ 30 °, and the large I of roll angle of coating is controlled by the adding proportion of polypropylene-polyethylene.
Preferably, the temperature that described apparatus for coating carries out being coated with is 80-100 DEG C, and spraying nozzle is 0.2-1mm to the distance of substrate, and application rate is 0.2-1m/min.
The invention has the beneficial effects as follows that to prepare thickness controlled, the controlled functionalized polypropylene super-hydrophobic coat at 0 ° ~ 30 ° of roll angle, the coating of preparation has good intensity and sterilization self-cleaning function simultaneously, and the network structure in coating and super-drainage structure are stablized, and coating does not come off; Swiped by strong external force or grind off coating, ultra-hydrophobicity is not significantly affected, and places the obvious decline that also can not cause coating surface ultra-hydrophobicity for about 1 year; And irradiate for a long time through ultraviolet light, contact angle rate of change is less than 3%, and roll angle is substantially constant, has good ageing-resistant performance.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of apparatus for coating;
Fig. 2 is the close-up schematic view of apparatus for coating;
Fig. 3 is the close-up schematic view of apparatus for coating;
Fig. 4 is the scanning electron microscope (SEM) photograph of the polypropylene super-hydrophobic coating of the embodiment of the present invention 2;
Fig. 5 is the scanning electron microscope (SEM) photograph of the polypropylene super-hydrophobic coating of the embodiment of the present invention 3;
Fig. 6 is the scanning electron microscope (SEM) photograph of the polypropylene super-hydrophobic coating of the embodiment of the present invention 4;
Fig. 7 is the polypropylene super-hydrophobic coating of the embodiment of the present invention 2 and the contact angle resolution chart of water;
Fig. 8 is the polypropylene super-hydrophobic coating of the embodiment of the present invention 3 and the contact angle resolution chart of water;
Fig. 9 is the polypropylene super-hydrophobic coating of the embodiment of the present invention 4 and the contact angle resolution chart of water.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is illustrated further.
Embodiment 1
As illustrated in fig. 1 and 2,1 be precision metering pump for preheating storage tank, 2 in figure, 3 be tube connector, 4 for mobile coating dolly, 5 be stepper motor, 6 be precision lead screw, 7 be extrusion coated mouth, 8 be coating fluid, 9 be bail, 10 be electrically heated rod, 11 be range sensor, 12 be coating, 13 be coating wheel (its postmedian two is equipped with small machine), 14 be electromagnet, 15 be matrix, 16 towing capstans and 17 are for preheating stirring
Apparatus for coating comprise preheat storage tank 1, precision metering pump 2 and coating car 4, described coating car 4 comprise stepper motor 5, accurate lead screw 6, extrusion coated mouth 7, electrically heated rod 10, range sensor 11, coating wheel 13 and 17 preheat stirring
Coating car 4 is the casing of lower opening, stepper motor 5 is arranged at the casing over top of coating car 4, extrusion coated mouth 7 is arranged in coating car, electrically heated rod 10 is arranged at above the lip of extrusion coated mouth 7, the lip of extrusion coated mouth 7 stretches out the casing lower opening of coating car 4, stepper motor 5 is connected with extrusion coated mouth 7 by accurate lead screw 6, preheat storage tank 1, precision metering pump 2 is connected by tube connector 3 with extrusion coated mouth 7, range sensor 11 is fixed on below the lateral wall of extrusion coated mouth 7, the contact of range sensor 11 stretches out the casing lower opening of coating car 4, cloth wheel 13 is filled below the wall box of coating car 4.
Apparatus for coating comprises bail 9 and towing capstan 16, and the wall box that bail 9 is installed in coating car 4 is outside, and towing capstan 16 is connected with bail 9 by rope.
Polypropylene solution system is under the stirring preheating agitator 17, and preheat preheating in storage tank 1, solution temperature remains on 110 DEG C, to be input in tube connector 3 to be input in extrusion coated mouth 7 again by precision metering pump 2 with constant flow.After solution is extruded by extrusion coated mouth 7, the coating car 4 of loading extrusion coated mouth 7 pulls the rope on bail 9 under the drive of wheel 13 or by automatic towing capstan 16, moves on matrix 15 surface.If matrix 15 surface has curve form, the lip of extrusion coated mouth 7 can change in movement to the surface distance of matrix 15, definite value is kept to the distance on matrix 15 surface in order to keep the lip of extrusion coated mouth 7, range sensor 11, stepper motor 5, precision lead screw 6 form closed-loop system, this system can adjust the surface distance of lip to matrix 15 of extrusion coated mouth 7 at any time, makes it to keep definite value to be beneficial to be formed the coating of uniform thickness.
As shown in Figure 3, when matrix 15 is coating occasions of a kind of vertical placement, by increasing a set of electromagnet in coating car 4, coating car 4 can be adsorbed on the surface of matrix 15, draws coating car 4 move on the surface of matrix 15 by automatic towing capstan 16.So just application of installation of the present invention can be carried out being coated with of coating to hull, pressure vessels for the chemical industry, external surface of buildings.
The external switch board of apparatus for coating, switch board can control the flow of precision metering pump 2; The movement velocity of coating car 4 is controlled; Controlled by the lip of range sensor 11 pairs of extrusion coated mouths 7 surface distance to matrix 15; The pre-heating temperature preheating storage tank 1 is controlled and the post bake temperature of electrically heated rod 10 and frequency are controlled.
Embodiment 2
Isotatic polypropylene raw material and chlorinated polypropylene raw material 1:1 are mixed, add polypropylene-polyethylene di-block copolymer (IPP/PP-PE mass ratio 9:1), be dissolved in dimethylbenzene, 135 DEG C dissolve completely, and being made into polymer concentration is 50mg/ml mixed with polymers solution; Be cooled to 120 DEG C, add the chlorinated rubber of polypropylene granules quality 38%, until completely dissolved, the precipitating reagent of polypropylene liquor capacity 6% is added in mixed solution, add the nano silver particles (12nm) of the surface modification of 0.05%, the newer forms matched with it is adopted to be coated with, drop temperature controls at 100 DEG C, coating temperature controls at 80 DEG C, spraying nozzle is set as 0.5mm to the distance of substrate, be coated with 0.5m/min speed, at temperature is 25 DEG C, drying 12 hours, obtains the super-hydrophobic coat that film thickness is 64 μm.As shown in Figure 4, coating is the coarse microballoon crystal structure of porous to the electron-microscope scanning of super-hydrophobic coat, size at 2.5-5 μm, similar alveolate texture.The contact angle of gained coating surface and water and the roll angle of water droplet is measured in laboratory environment, the water droplet of about 4 microlitres is adopted to drop on obtained coating surface 5 different positions, measure contact angle and roll angle, the mean value then asking at 5 is final with contact angle values that is water with the rolling angle value of water droplet.As shown in Figure 7, that obtain be 157 ± 0.4 ° of roll angles with contact angle that is water is 3 °, and continuously with ultraviolet source irradiation 400 hours, contact angle reduces to 155 ° by original 157 °, and roll angle is 3 °, has good ageing-resistant performance.
Embodiment 3
Isotatic polypropylene raw material and chlorinated polypropylene raw material 1:1 are mixed, add polypropylene-polyethylene di-block copolymer (IPP/PP-PE mass ratio 8:1), be dissolved in naphthane, 120 DEG C dissolve completely, and being made into polymer concentration is 60mg/ml mixed with polymers solution; Add the chlorinated rubber of polypropylene granules quality 40%, until completely dissolved, the precipitating reagent of polypropylene liquor capacity 8% is added in mixed solution, add the nano silver particles (12nm) of the surface modification of 0.1%, the newer forms matched with it is adopted to be coated with, drop temperature controls at 110 DEG C, coating temperature controls at 90 DEG C, spraying nozzle is set as 1mm to the distance of substrate, to be coated with under 0.3m/min speed, at temperature is 25 DEG C, drying 12 hours, obtains the super-hydrophobic coat that film thickness is 108 μm.As shown in Figure 5, coating is porous coarse microballoon crystal and smooth umbrella crystals coexist structure to the electron-microscope scanning of super-hydrophobic coat, and umbrella-shaped structure is of a size of 3-5 μm.The contact angle of gained coating surface and water and the roll angle of water droplet is measured in laboratory environment, the water droplet of about 4 microlitres is adopted to drop on obtained coating surface 5 different positions, measure contact angle and roll angle, the mean value then asking at 5 is final with contact angle values that is water with the rolling angle value of water droplet.As shown in Figure 8, that obtain is 151 ± 0.6 ° with contact angle that is water, and roll angle is 5 °.Be that model carries out antibacterial activity detection to the polypropylene film adding 0.05%Nano-Ag with Escherichia coli, as shown in Table 1, antibiotic rate is 99.9% to testing result.
Table one testing result
Embodiment 4
Isotatic polypropylene raw material and chlorinated polypropylene raw material 1:1 are mixed, add polypropylene-polyethylene di-block copolymer (IPP/PP-PE mass ratio 5:1), be dissolved in decahydronaphthalene, 130 DEG C dissolve completely, and being made into polymer concentration is 80mg/ml mixed with polymers solution; Be cooled to the chlorinated rubber that 120 DEG C add polypropylene granules quality 38%, until completely dissolved, the precipitating reagent of polypropylene liquor capacity 20% is added in mixed solution, add the Nano particles of silicon dioxide (20nm) of the surface modification of 1%, the newer forms matched with it is adopted to be coated with, drop temperature controls at 100 DEG C, coating temperature controls at 80 DEG C, spraying nozzle is set as 1mm to the distance of substrate, to be coated with under 0.8/min speed, at temperature is 25 DEG C, drying 12 hours, obtains the super-hydrophobic coat that film thickness is 150 μm.As shown in Figure 6, coating is porous disk-like structure to the electron-microscope scanning of super-hydrophobic coat, observes this porous disk-like structure and be of a size of 3-4 μm under ESEM.The contact angle of gained coating surface and water and the roll angle of water droplet is measured in laboratory environment, the water droplet of about 4 microlitres is adopted to drop on obtained coating surface 5 different positions, measure contact angle and roll angle, the mean value then asking at 5 is final with contact angle values that is water with the rolling angle value of water droplet.As shown in Figure 9, that obtain is 150 ± 0.5 ° with contact angle that is water, and roll angle is 25 °.
Embodiment 5
Isotatic polypropylene raw material and chlorinated polypropylene raw material 1:1 are mixed, add polypropylene-polyethylene di-block copolymer (IPP/PP-PE mass ratio 7:1), be dissolved in the mixed solvent of dimethylbenzene and toluene, 125 DEG C dissolve completely, and being made into polymer concentration is 100mg/ml mixed with polymers solution; Be cooled to 120 DEG C, add the chlorinated rubber of polypropylene granules quality 40%, until completely dissolved, in mixed solution, add the precipitating reagent of polypropylene liquor capacity 20%, adopt the newer forms matched with it to be coated with, drop temperature controls at 110 DEG C, coating temperature controls at 100 DEG C, and spraying nozzle is set as 1mm to the distance of substrate, to be coated with under 0.9/min speed, at temperature is 25 DEG C, drying 12 hours, obtains the super-hydrophobic coat that film thickness is 160 μm.The contact angle of gained coating surface and water and the roll angle of water droplet is measured in laboratory environment, the water droplet of about 4 microlitres is adopted to drop on obtained coating surface 5 different positions, measure contact angle and roll angle, the mean value then asking at 5 is final with contact angle values that is water with the rolling angle value of water droplet.As shown in Figure 9, that obtain is 154 ± 0.7 with contact angle that is water, and roll angle is 15 °, and use ultraviolet source irradiation 400 hours continuously, contact angle reduces to 151 ° by original 154 °, and roll angle is 17 °, has good ageing-resistant performance.
Claims (11)
1. the preparation method of a functional super-hydrophobic polypropylene coating, it is characterized in that: described preparation method is completed by following apparatus for coating, described apparatus for coating comprise preheat storage tank (1), precision metering pump (2) and coating car (4); Described coating car (4) comprises stepper motor (5), accurate lead screw (6), extrusion coated mouth (7), electrically heated rod (10), range sensor (11) and coating wheel (13); The casing that described coating car (4) is lower opening, described stepper motor (5) is arranged at the casing over top of coating car (4), described extrusion coated mouth (7) is arranged in coating car, described electrically heated rod (10) is arranged at above the lip of extrusion coated mouth (7), the lip of extrusion coated mouth (7) stretches out the casing lower opening of coating car (4), and described stepper motor (5) is connected with extrusion coated mouth (7) by accurate lead screw (6); Describedly preheat storage tank (1), precision metering pump (2) is connected by metal hose (3) with extrusion coated mouth (7), described range sensor (11) is fixed on below the lateral wall of extrusion coated mouth (7), the contact of range sensor (11) stretches out the casing lower opening of coating car (4), is provided with coating wheel (13) below the wall box of described coating car (4); Utilize above-mentioned apparatus for coating to prepare the method for super-hydrophobic polypropylene coating, comprise the steps:
(1) raw material is blended: mixed with chlorinated polypropylene by isotatic polypropylene, adds polypropylene-polyethylene copolymer, is dissolved in organic solvent, obtains polypropylene solution;
(2) add chlorinated rubber in the polypropylene solution obtained to step (1), dissolve completely, obtain B solution;
(3) add precipitating reagent in the B solution obtained to step (2), obtain C solution;
(4) add functional particle in the C solution obtained to step (3), obtain solution D;
(5) solution D that step (4) obtains is coated on matrix by above-mentioned apparatus for coating, form super-hydrophobic polypropylene coating.
2. preparation method according to claim 1, it is characterized in that: described apparatus for coating also comprises bail (9) and towing capstan (15), the wall box that described bail (9) is installed in coating car (4) is outside, and described towing capstan (15) is connected with bail (9) by rope.
3. preparation method according to claim 1, it is characterized in that: described apparatus for coating also comprises electromagnetic absorption device, described electromagnetic absorption device comprises two pieces of electromagnet (16), and described electromagnet (16) is arranged at the wall box of coating car (4).
4. preparation method according to claim 2, it is characterized in that: described apparatus for coating also comprises electromagnetic absorption device, described electromagnetic absorption device comprises two pieces of electromagnet (16), and described electromagnet (16) is arranged at the wall box of coating car (4).
5. preparation method according to claim 1, it is characterized in that: step (1) described isotatic polypropylene and chlorinated polypropylene in mass ratio 1:1 ratio mixing, the ratio of the mixture of isotatic polypropylene and chlorinated polypropylene and polypropylene-polyethylene copolymer 20:1-10:1 in mass ratio mixes, described organic solvent is selected from one or more in dimethylbenzene, toluene, naphthane and decahydronaphthalene, the described temperature being dissolved in organic solvent is 120-140 DEG C, and the polypropylene solution concentration of formation is 50-100mg/ml.
6. preparation method according to claim 1, is characterized in that: the amount adding chlorinated rubber described in step (2) is the 30%-50% of polypropylene granules quality.
7. preparation method according to claim 6, is characterized in that: the amount adding chlorinated rubber described in step (2) is the 37%-40% of polypropylene granules quality.
8. preparation method according to claim 1, it is characterized in that: the 5-20% of amount for polypropylene liquor capacity described in step (1) adding precipitating reagent described in step (3), described precipitating reagent is selected from cyclohexanone, isopropyl alcohol, acetone or MEK.
9. preparation method according to claim 1, it is characterized in that: step (4) described functional particle be selected from the synthesis of Stober method nano silicon concentrate, through silane coupler modified Nano particles of silicon dioxide, through silane coupler modified titanium dioxide nano-particle, through silane coupler modified calcium carbonate nano particle and one or several in silane coupler modified Nano silver grain, the diameter of described functional particle is 7 ~ 200nm, and addition is the 0-1.5% of feed liquid solid content.
10. preparation method according to claim 1, is characterized in that: the thickness of the super-hydrophobic polypropylene coating that step (5) is formed is 25-170 μm, and the size of roll angle is 0 ° ~ 30 °.
11. preparation methods according to any one of claim 1-10, it is characterized in that: the temperature that described apparatus for coating carries out being coated with is 80-100 DEG C, spraying nozzle is 0.2-1mm to the distance of substrate, and application rate is 0.2-1m/min.
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| CN104562678A (en) * | 2013-10-29 | 2015-04-29 | 江南大学 | Super-hydrophobic textile preparation method based on phase separation technology |
| CN103964706B (en) * | 2014-05-15 | 2017-01-04 | 奇瑞汽车股份有限公司 | A kind of vehicle glass superhydrophobic films layer and preparation method thereof |
| CN106243374A (en) * | 2016-08-19 | 2016-12-21 | 无锡市新达轻工机械有限公司 | Polypropylene rotary drum and preparation technology thereof |
| CN111087644B (en) * | 2019-12-27 | 2022-02-18 | 扬州大学 | Multifunctional super-hydrophobic conductive rubber composite material and preparation method thereof |
| CN112609462A (en) * | 2020-12-22 | 2021-04-06 | 南通新帝克单丝科技股份有限公司 | Solution for coating braided wire and coating method thereof |
| CN114773921B (en) * | 2022-03-10 | 2023-03-10 | 中国科学院兰州化学物理研究所 | Method for ultra-rapidly preparing stable super-hydrophobic surface on complex modeling substrate |
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| US20060240218A1 (en) * | 2005-04-26 | 2006-10-26 | Nanosys, Inc. | Paintable nonofiber coatings |
| CN101070408B (en) * | 2006-05-12 | 2010-08-18 | 中国科学院化学研究所 | Roll-position-controllable polypropylene super hydrophobic film or block material and their preparing method |
| CN101768396B (en) * | 2009-01-04 | 2012-09-26 | 中国科学院化学研究所 | Blending modified polypropylene super-hydrophobic coating or film with controllable rolling angle and preparation method thereof |
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