TR201906035A1 - DURABLE SUPERHYDROPHOBIC COATINGS WITH SELF-ORGANIZED HYERARCHIC STRUCTURES - Google Patents
DURABLE SUPERHYDROPHOBIC COATINGS WITH SELF-ORGANIZED HYERARCHIC STRUCTURES Download PDFInfo
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- TR201906035A1 TR201906035A1 TR2019/06035A TR201906035A TR201906035A1 TR 201906035 A1 TR201906035 A1 TR 201906035A1 TR 2019/06035 A TR2019/06035 A TR 2019/06035A TR 201906035 A TR201906035 A TR 201906035A TR 201906035 A1 TR201906035 A1 TR 201906035A1
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- surface coating
- coating method
- superhydrophobic surface
- glass slides
- superhydrophobic
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- 230000003075 superhydrophobic effect Effects 0.000 title claims abstract description 39
- 238000000576 coating method Methods 0.000 claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000011248 coating agent Substances 0.000 claims abstract description 27
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000002105 nanoparticle Substances 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000011521 glass Substances 0.000 claims abstract description 15
- 230000003068 static effect Effects 0.000 claims abstract description 15
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims abstract description 11
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 11
- 238000005299 abrasion Methods 0.000 claims abstract description 9
- 235000019441 ethanol Nutrition 0.000 claims abstract description 9
- 239000007921 spray Substances 0.000 claims abstract description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000005096 rolling process Methods 0.000 claims abstract description 7
- 239000004203 carnauba wax Substances 0.000 claims abstract description 5
- 235000013869 carnauba wax Nutrition 0.000 claims abstract description 5
- 239000000725 suspension Substances 0.000 claims abstract description 5
- 239000013078 crystal Substances 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims abstract description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 4
- 238000005406 washing Methods 0.000 claims abstract description 4
- 238000004090 dissolution Methods 0.000 claims abstract description 3
- 239000001993 wax Substances 0.000 claims description 9
- 239000002904 solvent Substances 0.000 claims description 8
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- BNCXNUWGWUZTCN-UHFFFAOYSA-N trichloro(dodecyl)silane Chemical compound CCCCCCCCCCCC[Si](Cl)(Cl)Cl BNCXNUWGWUZTCN-UHFFFAOYSA-N 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 4
- 238000002156 mixing Methods 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 19
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 239000000377 silicon dioxide Substances 0.000 description 9
- 150000001343 alkyl silanes Chemical class 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000009863 impact test Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 240000002853 Nelumbo nucifera Species 0.000 description 3
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 3
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000005871 repellent Substances 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 239000005909 Kieselgur Substances 0.000 description 1
- 241000209490 Nymphaea Species 0.000 description 1
- 235000016791 Nymphaea odorata subsp odorata Nutrition 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000012164 animal wax Substances 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000002415 cerumenolytic agent Substances 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000013373 food additive Nutrition 0.000 description 1
- 239000002778 food additive Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002052 molecular layer Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 239000012178 vegetable wax Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/08—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain an anti-friction or anti-adhesive surface
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1681—Antifouling coatings characterised by surface structure, e.g. for roughness effect giving superhydrophobic coatings or Lotus effect
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2401/00—Form of the coating product, e.g. solution, water dispersion, powders or the like
- B05D2401/10—Organic solvent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2501/00—Varnish or unspecified clear coat
- B05D2501/10—Wax
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2601/00—Inorganic fillers
- B05D2601/20—Inorganic fillers used for non-pigmentation effect
- B05D2601/22—Silica
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Paints Or Removers (AREA)
- Surface Treatment Of Glass (AREA)
- Materials Applied To Surfaces To Minimize Adherence Of Mist Or Water (AREA)
Abstract
Bu buluş, darbe ve aşınma dayanımına ve yüksek su statik temas açısı özelliğine sahip olan, ağırlıkça 0,1 gram karnauba mumu kristallerinin, 20 mL kloroform içerisine eklenerek 100-120 ºC’de 5-15 dakika boyunca ısıtılarak çözündürülmesi, çözünme işlemi tamamlandıktan sonra çalkalama yapılarak oda sıcaklığına kadar soğutulması, 0,4 gram hidrofobik nanopartiküller ilave edilip 5-15 dakika boyunca karıştırılması, cam lamların, içerisinde etil alkol ve aseton bulunan yıkama kabına alınarak ultrasonik cihazında temizlenmesi, cam lamların azot ile kurutulması ve UV-ozon cihazında 20-30 dakika boyunca bekletilmesi, hidrofobik nanopartiküller ilave edilmiş süspansiyonun, 2-3 bar'lık sabit basınçta en az 20 cm mesafeden, sprey tabancası ile cam lamlar üzerine kaplama yapılması adımlarını içeren bir süperhidrofobik yüzey kaplama yöntemi ile ilgilidir. Bu şekilde, Bu amaçla hiyerarşik bir şekilde düzenlenmiş mikro ve nano boyutta yapıların kendiliğinden oluşturulması ve yüksek su iticilik (su temas açısı >150o ve yuvarlanma açısı <10o) ve yüksek mekanik dayanıma sahip süperhidrofobik kaplamaların üretilmesi amaçlanmaktadır.The present invention is to dissolve 0.1 grams of carnauba wax crystals in 20 mL chloroform by heating for 5-15 minutes at 100-120 ºC, with impact and abrasion resistance and high water static contact angle property, after the dissolution process is completed. cooling it to room temperature, adding 0.4 grams of hydrophobic nanoparticles and mixing for 5-15 minutes, taking the glass slides into the washing container with ethyl alcohol and acetone in the ultrasonic device, drying the glass slides with nitrogen and 20-30 in the UV-ozone device. Holding for minutes relates to a method of superhydrophobic surface coating comprising the steps of coating the suspension with hydrophobic nanoparticles added on glass slides with a spray gun at a constant pressure of 2-3 bar at a distance of at least 20 cm. In this way, it is aimed to create hierarchically arranged micro and nano-sized structures by themselves and to produce superhydrophobic coatings with high water repellency (water contact angle> 150o and rolling angle <10o) and high mechanical strength.
Description
TARIFNAME KENDILIGINDEN DÜZENLENEN HIYERARSIK YAPILAR ILE DAYANIKLI SÜPERHIDROFOBIK KAPLAMALAR Teknik Alan Bu bulus, kendiliginden düzenlenen hiyerarsik yapilar ile dayanikli süperhidrofobik Önceki Teknik Süperhidrofobik kaplama teknigi, lotus (nilüfer) çiçeginin özelliklerinden yararlanilarak olusturulmus bir yöntemdir. Lotus çiçeginin yüzeyinde kirlenmeyi önleyici bir yapi bulunmaktadir. Bitkinin yapragina düsen yagmur damlalari yapragin üzerinden kayarak yere düser ve ayni zamanda yüzeydeki kir ve tozlari da beraberinde sürükler. Nesnelerin yüzeyinde bu dokuyu olusturmayi esas alinarak olusturulan teknikle yüzeyde bir mikro-nano tabaka olusturularak hidrofobik özellik göstermesi saglanir. Böylelikle nesne hem kirlenmez hem de islanmaz. DESCRIPTION WITH SELF ORGANIZED HIERARCHY STRUCTURES DURABLE SUPERHYDROPHOBIC COATINGS Technical Area This invention is characterized by stable superhydrophobic structures with self-organizing hierarchical structures. Prior Art Superhydrophobic coating technique is one of the characteristics of lotus (water lily) flower. It is a built-in method. Contamination on the surface of the lotus flower There is a preventive structure. Raindrops falling on the leaf of the plant It slides over the leaf and falls to the ground and also removes dirt and dust from the surface. drags along. Based on creating this texture on the surface of objects With the technique created, a micro-nano layer is formed on the surface and hydrophobic feature is provided. In this way, the object does not get dirty and does not get wet.
Lotus bikisinden esinlenerek gelistirilen süperhidrofobik kaplamalarin, günlük yasantimizda kullanim alanlari gün geçtikce artmaktadir. Süperhidrofobik kaplamalarin su ve bazi düsük yüzey gerilimine sahip sivilara karsi itici özellik göstermesi kaplamalarin birçok alanda kullanilabilmesinin önünü açmaktadir. Bu kaplamalar ayrica korozyon, buzlanma, buglanma ve kirlenme önleyici özelligine de sahiptirler. Superhydrophobic coatings inspired by the lotus bikini usage areas in our lives are increasing day by day. superhydrophobic repellent property of coatings against water and some liquids with low surface tension This paves the way for coatings to be used in many areas. This The coatings also have anti-corrosion, icing, fogging and anti-fouling properties. they also have.
Süperhidrofobik kaplamalar: o Suyu ve diger sivilari geçirmedigi için islanmazlar. 0 Su ve nem ana materyale dogrudan temas etmedigi için paslanmazlar. o Suyu üzerinde tutmadigi için buz tutmazlar. o Uygulanan materyaller kir ve leke tutmazlar. 0 Ürün yüzeyinin nefes almasini engellemez, hava ve buhar geçirgendir. o Minimum -3ÜOC, maksimum 220°C'ye kadar dayaniklidir. o Özelligini kaybetmesi durumunda tekrar uygulamayla etkisi devam ettirilebilir. Superhydrophobic coatings: o They do not get wet because they do not pass water and other liquids. 0 Since water and moisture do not come into direct contact with the parent material, they do not rust. They do not hold ice because they do not hold water on them. o The applied materials are dirt and stain resistant. 0 It does not prevent the breathing of the product surface, it is air and vapor permeable. o It is durable up to a minimum of -3ÜOC, a maximum of 220°C. o If it loses its properties, its effect will continue with reapplication. can be carried.
Süperhidrofobik kaplama her türlü yüzeye, (ör: tüm tekstil ve deri yüzeylerine, cam, seramik yüzeylere, tas ve ahsap yüzeylere, elektronik ürünlerin yüzeylerine) uygulanabilmektedir. Superhydrophobic coating can be applied to any surface (eg: all textile and leather surfaces, glass, ceramic surfaces, stone and wooden surfaces, surfaces of electronic products) applicable.
Süperhidrofobik kaplama tehlikeli islerde çalisan meslek gruplari için avantajli bir yöntem sunmaktadir. Çalisanlar su tutmaz ve geçirmez kaplamali, nefes alabilen elbiseler sayesinde tehlikeden korunabilirler. Ayrica bu kaplamalar sayesinde gemilerin dis yüzeyindeki sürtünme katsayisi düsürülerek, yakittan tasarruf saglanabilir ve gemi bakim periyodlari uzatilarak geminin aktif çalisma süresi arttirilabilir. Superhydrophobic coating is an advantageous for occupational groups working in hazardous jobs. offers a method. Workers are water-repellent and with impermeable coating, breathable They can be protected from danger by wearing clothes. Thanks to these coatings By reducing the friction coefficient on the outer surface of the ships, fuel savings The active working time of the ship can be provided and the ship maintenance periods can be extended. can be increased.
Devletler patent dokümaninda bahsedilen bulus, gelistirilmis bir süperhidrofobik kaplama islemi ile ilgilidir. Bir baglayici maddenin süperhidrofobik kaplamaya entegrasyonunu arttirmak için karbon dioksit kullanilarak saglam bir süperhidrofobik kaplama üretilmektedir. Karbon dioksit, diyatomlu toprak gibi süperhidrofobik bir materyalin interstisyel bosluklarini süzmek ve doldurmak için kullanilabilmektedir. Bu bosluklarin süperhidrofobik malzemede kullanilmasi, diger bilesenlerin (örnegin baglayicilarin) bosluklara girmesini etkili bir sekilde engellemektedir. Böylece, bulusun kaplama formülasyonlari daha saglamdir ve uygulandiklari alt tabakalara güçlü bir sekilde yapisabilir. The invention mentioned in the states patent document is an improved superhydrophobic related to the coating process. of a binder to a superhydrophobic coating. a robust construction using carbon dioxide to increase the integration of superhydrophobic coating is produced. such as carbon dioxide, diatomaceous earth to filter and fill the interstitial spaces of a superhydrophobic material can be used. Using these voids in superhydrophobic material, effectively prevent other components (e.g. connectors) from entering spaces. hinders. Thus, the coating formulations of the invention are more robust and can adhere strongly to the substrates to which they are applied.
Literatürdeki uygulamalarda süperhidrofobik kaplamalarin darbe ve asinma dayanimlarinin endüstriyel uygulamalar için yeteri kadar iyi olmadigi gözlemlenmistir. Hem yüksek su iticilik (yüksek statik temas açisi ve düsük yuvarlanma açisi) hem de yüksek darbe ve asinma dayanimi saglama zorlugu literartürde bilinen temel problemlerden birisidir. Süperhidrofobik kaplamalarin dayanimlarini artirmak istenirken su iticiliklerinin düsmesine sebep olunmaktadir. Impact and abrasion of superhydrophobic coatings in applications in the literature their strength is not good enough for industrial applications. has not been observed. Both high water repellency (high static contact angle and low rolling angle) as well as the difficulty of providing high impact and abrasion resistance It is one of the main problems known in the literature. Superhydrophobic coatings While it is desired to increase their resistance, water repellency is caused to decrease.
Teknikte genel olarak tennoset polimerler kullanilarak süperhidrofobik kaplamalarin dayanimlari artirilmaya çalisilmaktadir. The art generally uses tennoset polymers to use superhydrophobic trying to increase the strength of the coatings.
Bulusun Kisa Açiklamasi Bulusun amaci, yüksek su iticilik (su temas açisi >150° ve yuvarlanma açisi <10°) ve yüksek mekanik dayanima sahip süperhidrofobik kaplamalarin üretilmesidir. Bu amaçla hiyerarsik bir sekilde düzenlenmis mikro ve nano boyutta yapilarin kendiliginden olusturulmasi esas alinmaktadir. Brief Description of the Invention The aim of the invention is high water repellency (water contact angle >150° and rolling angle <10°) and the production of superhydrophobic coatings with high mechanical strength. This hierarchically arranged micro- and nano-sized structures for this purpose. It is based on self-creation.
Bulusun diger bir amaci, süperhidrofobik kaplamalarin dayanimlarini gelistirmek için, ucuz, temini kolay, tamamen bitkisel ve gida katkida kullanilan bir malzeme olan karnauba mumu ya da altematiflerinin dogal mumlar; madensel mumlar, bitkisel mumlar, hayvansal mumlarve sentetik mumlar). kullanilmasidir. Another object of the invention is to improve the strength of superhydrophobic coatings. It is a cheap, easy to obtain, completely herbal and food additive material for natural waxes of carnauba wax or its alternatives; mineral candles, vegetable waxes, animal waxes, and synthetic waxes). is to be used.
Bulusun diger bir amaci, yüksek su iticiligine sahip kaplamalarin florokarbonlu bilesikler kullanilmadan elde edilmesidir. Another object of the invention is to provide high water repellency coatings with fluorocarbon is obtained without the use of compounds.
Bulusun diger bir amaci, kullanilan üretim reçetesinin kolayligi, hammaddelerin ueuzlugu, kolay temini bakimindan, sanayi uygulamalannda kolay adapte edilebilir bir yöntemi elde edilmesidir. Another aim of the invention is the convenience of the production recipe used, It can be easily adapted in industrial applications in terms of its wideness, easy availability obtaining a method.
Bulusun Ayrintili Açiklamasi Bulus, yüksek dayanikliliga sahip bir süperhidrofobik yüzey kaplama yöntemi olup, - agirlikça 0,1 gram karnauba mumu kristallerinin, 20 mL kloroform içerisine eklenerek 100-120 oC”de 5-15 dakika boyunca isitilarak çözündürülmesi, - çözünme islemi tamamlandiktan sonra çalkalama yapilarak oda sicakligina kadar sogutulmasi, - 0,4 gram alkil silan, tercihen dodesil trikloro silan ile hidrofobik hale getirilmis silika nanopartiküller ilave edilip 5-15 dakika boyunca karistirilmasi, - cam lamlarin, içerisinde etil alkol ve aseton bulunan yikama kabina alinarak ultrasonik cihazinda temizlenmesi, - cam lamlarin azot ile kurutulmasi ve UV-ozon eihazinda 20-30 dakika boyunca bekletilmesi, - hidrofobik hale getirilmis silika nanopartiküller ilave edilmis süspansiyonun, 2-3 bar'lik sabit basinçta, en az 20 cm mesafeden sprey tabancasi ile cam lamlar üzerine kaplama yapilmasi, - atmosferik ortamda kurumaya birakilmasi adimlarini içermektedir. Detailed Description of the Invention The invention is a superhydrophobic surface coating method with high durability. - 0.1 grams by weight of carnauba wax crystals, 20 mL of chloroform by adding it to it and heating it at 100-120 oC for 5-15 minutes. to dissolve, - After the dissolution process is completed, it is shaken and brought to room temperature. cooling up, - become hydrophobic with 0.4 grams of alkyl silane, preferably dodecyl trichlorosilane brought silica nanoparticles were added and simmered for 5-15 minutes. mixing, - glass slides, washing cabinet containing ethyl alcohol and acetone cleaning in the ultrasonic device, - drying of glass slides with nitrogen and UV-ozone for 20-30 minutes to be kept throughout, - added hydrophobic silica nanoparticles Spray the suspension at a constant pressure of 2-3 bar, from a distance of at least 20 cm. coating on glass slides with a gun, - It includes the steps of leaving it to dry in atmospheric environment.
Kamauba mumu kristalleri 20 mL kloroform içerisine agirlikça 0,1 gram eklenerek 105°C°de 10 dakika boyunca isitilmaktadir. Kamauba mumu kloroform içerisinde homojen bir sekilde çözündükten sonra kontrollü bir sekilde oda sicakligina kadar sogumasi saglanmaktadir. Soguma esnasinda çalkalama yapilip oda sicakligina ulasildiginda 0,4 gram hidrofobik hale getirilmis silika nanopartikülleri ilave edilip dakika boyunca vortex cihazi yardimiyla karistirilmasi saglanmaktadir. Çözücü olarak kullanilan kloroform çok uçucu oldugu için mikro- nano boyutta kendiliginden düzenlenen hiyerarsik bosluklu yapilar olusmaktadir. Bu sebepten ötürü bu çözücü ile hazirlanan kaplamalarda etanol, toluen, methanol, aseton gibi çözücülerle hazirlanan kaplamalara kiyasla çok yüksek darbe ve asinma dayanimi gözlemlenmistir. Bunun sebebi ise kloroform ve etil asetatin karnauba mumunu diger çözücülere göre fazlasiyla iyi çözmesinden (çap dagilimlari ortalama 5 nm ± 1 nm) sonra olusan karisimdan kaynaklanmaktadir. Diger çözücüler ile yapilan deneylerde tanecik boyutunun yaklasik 2 - 7 mm araliginda oldugu belirlenmistir. Kamauba wax crystals were added to 20 mL of chloroform by adding 0.1 grams by weight. It is heated at 105°C for 10 minutes. Kamauba wax in chloroform After dissolving homogeneously, it is brought to room temperature in a controlled manner. cooling is provided. During cooling, it can be shaken and brought to room temperature. Once reached, 0.4 grams of hydrophobic silica nanoparticles were added. It is mixed with the help of a vortex device for minutes. Chloroform used as a solvent is very volatile, so it is micro-nano-sized. hierarchical gap structures are formed which are self-organized. Because of that Therefore, coatings prepared with this solvent can be used as ethanol, toluene, methanol, acetone. very high impact and abrasion resistance compared to coatings prepared with solvents has not been observed. This is because chloroform and ethyl acetate form carnauba wax. It dissolves very well compared to other solvents (diameter distributions average 5 nm ± It is due to the mixture formed after 1 nm). made with other solvents In the experiments, it was determined that the particle size was between 2 and 7 mm.
Bulus konusu yöntemde kullanilan kamauba mumu çözücü içerisinde dagitildiktan sonra çap dagilimlari ortalama 5 nm (± 1 nm) ölçülmektedir. Bu denli küçük çaplara sahip olan kamauba mumu islevsellestirilmis silika nanopartiküllerinin sivi iticiliklerini bozmadan dayanimi arttirmaktadir. Bu kaplamalarin statik su temas açisi 175° ± 3° ve yuvarlanma açisi 2° ± l° olarak karakterize edilmistir. After the kamauba wax used in the method of the invention is dispersed in the solvent, Then the diameter distributions are measured at an average of 5 nm (± 1 nm). For such small diameters liquid silica nanoparticles with kamauba wax functionalized It increases the strength without disturbing their repellency. Static water contact of these coatings angle of 175° ± 3° and roll angle as 2° ± 1°.
Bu bulus yönteminde kaplamalarin dayanimlarini arttirmak için ilk defa dogal bir malzeme olan kamauba mumu, hidrofobik nanopartiküller ile birlikte kullanilmistir. Teknikteki uygulamalarda, Ilor bazli olmayan düsük yüzey enerjisine sahip alkil silanlar kullanilmakta ve statik temas açisi düsmektedir. Bu yöntemde Hor içermeyen alkil silan kullanilmasina ragmen bu tür bir sorun gözlemlenmemistir. Kaplamalar hem tlorokarbonlu bilesenler içerrnemekte hem de 1750 ± 30 gibi yüksek bir statik temas açisina ve 2D ± 10 gibi bir kayma açisina sahiptir. In this invention method, for the first time, a natural coating is used to increase the strength of the coatings. material, kamauba wax, together with hydrophobic nanoparticles used. In technical applications, non-Ilor based low surface alkyl silanes with high energy are used and the static contact angle is reduced. This Although the method uses Hor-free alkyl silane, this kind of problem does not occur. not observed. The coatings do not contain both fluorocarbon components and It has a high static contact angle of 1750 ± 30 and a slip angle of 2D ± 10 has.
Hidrofilik silika nanopartiküllerinin hidrofobik hale getirilmesi için alkil silan, tercihen dodesiltriklorosilan ile modifiye edilmektedir. 2 gram silika nanopartikülleri 40 mL toluen içerisine eklenerek manyetik balik yardimi ile karistirilmaktadir. Homojen bir karismadan sonra 1 mL alkil silan yavas yavas toluen silika nanopartikülleri karisimina eklenmektedir. Bu çözelti 3 saat boyunca karistirilmaktadir. Karistirma isleminden sonra bu çözelti 15 dakika boyunca santritüj cihazi ile santritüjlenmektedir. Santritüj isleminden sonra elde edilen hidrofobik silika nanopartiküller firinda 80 ° C de kurutulmaktadir. Kurutma islemi yaklasik olarak 12 saat sürmektedir. Alkyl silane for hydrophobicization of hydrophilic silica nanoparticles, preferably modified with dodecyltrichlorosilane. 2 grams of silica nanoparticles were added to 40 mL of toluene and the magnetic fish are mixed. After homogeneous mixing, 1 mL of alkyl silane slowly toluene is added to the silica nanoparticles mixture. This solution for 3 hours are mixed. After mixing, this solution is stirred for 15 minutes. centrifuged with centrifuge device. Obtained after centrifugation The hydrophobic silica nanoparticles are dried in the oven at 80 °C. drying process takes approximately 12 hours.
Içerisinde etil alkol ve aseton bulunan yikama kabina cam lamlar (1x1 cm2) alinip ultrasonik cihazinda 10 dakika boyunca temizleme islemi gerçeklestirilmektedir. Glass slides (1x1 cm2) were taken from the washing cabinet containing ethyl alcohol and acetone. The cleaning process is carried out in the ultrasonic device for 10 minutes.
Islem sonunda cam lamlar azot ile kurutulup, UV-ozon cihazinda 30 dakika boyunca temizlenmesi saglanmaktadir. At the end of the process, the glass slides are dried with nitrogen and in the UV-ozone device for 30 minutes. Cleaning is provided throughout.
Bulusun bir uygulamasinda, yüzey temizligi için etil alkol veya alkollü mendiller kullanilabilmektedir. In one embodiment of the invention, ethyl alcohol or alcohol wipes for surface cleaning can be used.
Elde edilen süspansiyon 2-3 bar'lik sabit bir basinçta iç çapi 0,35 mm7lik nozül basligina sahip sprey tabancasi yardimi ile kaplama islemi için hazirlanmis cam lam üzerine (1 x 1 cm2) kaplama yapilmaktadir. Sprey ile kaplama islemi 30 cm mesafeden ve 90° açi ile yapildiktan sonra atmosferik ortamda kurumaya birakilmaktadir. Laboratuvar ortami disinda da sprey siseleri ile kaplama yapilabilmektedir. The resulting suspension was injected into a nozzle with an inner diameter of 0.35 mm at a constant pressure of 2-3 bar. Glass slide prepared for coating with the help of a spray gun with a head (1 x 1 cm2) coating is applied on it. Spray coating process 30 cm After it is done from a distance and at a 90° angle, it is allowed to dry in the atmospheric environment. are dropped. Coating with spray bottles outside the laboratory environment can be done.
Elde edilen nihai solüsyon ürünün raf ömrü testi yapilmis ve üründe kullanilan nanopartiküllerde herhangi bir çökme gözlemlenmemistir. The shelf life test of the final solution obtained was carried out and the product used in the product was tested. No precipitation was observed in the nanoparticles.
Bulusun tercih edilen bir uygulamasinda, alkil silan kullanilarak hidrofobik hale getirilmis silika nanopartiküller yerine, titanyum dioksit, demir oksit ve çinko oksit nanopartikülleri kullanilabilir. In a preferred embodiment of the invention, it is rendered hydrophobic using alkyl silane. Titanium dioxide, iron oxide, and zinc oxide are substituted for silica nanoparticles. nanoparticles can be used.
Bulusun tercih edilen bir uygulamasinda, karanauba mumu çözücüsü olarak kloroform yerine etil asetat kullanilmaktadir. Iki çözücü için de ayni deneysel sonuçlar alinmaktadir. Örnek Analizleri Kaplama yapilmis altliklarin su iticilik özellikleri statik temas açisi ve yuvarlanma açisi ölçümleri goniyometre cihazi ile karakterize edilmektedir. Hazirlanan kaplamalarin darbe ve asinma dayanimlari, su sprey darbe testi, su jeti darbe testi, uzun süreli su damla darbe testi ve agirlikla asindirma testi ile belirlenmektedir. In a preferred embodiment of the invention, it is used as a karanauba wax solvent. Ethyl acetate is used instead of chloroform. Same experimental for both solvents. results are received. Sample Analysis Water repellency properties of coated substrates, static contact angle and rolling Angle measurements are characterized by the goniometer device. prepared impact and abrasion resistance of coatings, water spray impact test, water jet impact test, It is determined by long-term water drop impact test and weight abrasion test.
Yapilan darbe ve asinma testlerinin yüzeyde meydana getirdigi tahripler SEM ve AFM cihazlari ile karakterize edilmistir. 1 cm2 yüzey alanina sahip süperhidrofobik kaplanmis numune 100 gram agirlik altinda 1000 kumluk silisyum karbür asindiriçi yüzeyinde hareket ettirilerek süperhidrofobik kaplamanin asinma dayanimi ineelenmistir. Süperhidrofobik kaplama asindirici üzerinde yaklasik 150 cm hareket ettirilmesine ragmen statik su temas açisi halen 165° ± 2° ve yuvarlanma açisi 7° ± l° olmaktadir ve halen yüksek sivi iticiligini korumaktadir. Süperhidrofobik kaplanmis numune Silisyum karbürün yüzeyinde her 10 cm hareketten sonra statik temas açisi ölçülerek bu islem 15 defa tekrarlanmistir. Silisyum asindiricinin yüksek asindirici özelligine ragmen kaplamanin süperhidrofobik özelligini korumasi gelistirilen yöntemin yüksek mekanik dayanimina sahip oldugunu göstermektedir. The damage caused by the impact and abrasion tests on the surface is done by SEM and It is characterized by AFM devices. Superhydrophobic coated sample with a surface area of 1 cm2 weighed 100 grams. by moving the 1000 grit silicon carbide in the abrasive surface under The abrasion resistance of the superhydrophobic coating has been studied. superhydrophobic Even though the coating is moved about 150 cm on the abrasive, static water the contact angle is still 165° ± 2° and the roll angle is 7° ± 1° maintains its liquid repellency. Superhydrophobic coated sample Silicon carbide This process is done 15 times by measuring the static contact angle after every 10 cm of movement on the surface. is repeated. Despite the high abrasive properties of silicon abrasive, The protection of the superhydrophobic property of the coating is the result of the high level of the developed method. shows that it has mechanical strength.
Su ile darbe testlerine son derece dayanimli oldugu görülmüstür. Su jeti darbe testinde tazyikli su altinda 45 dakika boyunca su darbesi uygulanan süperhidrofobik kaplamanin statik temas açisi halen 168° ± 20 ve yuvarlanma açisinin 4O ± 10 oldugu görülmektedir. Tazyikli suyun süperhidrofobik yüzeyde 32,0 kPa basinç olusturmasina ragmen kaplamanin statik temas açisini halen muhafaza etmesi kaplamanin yüksek darbe dayanimina sahip oldugunu göstermektedir. 400 bin su damlasinin (1 damla : 30 cm mesafeden kaplama üzerinde darbe olusturmasina ragmen statik temas açisi halen 160° ± 2° ve yuvarlanma açisinin 10° ± 2° oldugu görülmektedir. Bir su damlasinin kaplama yüzeyinde 3,9 kPa degerinde basinç olusturmasina ragmen süperhidrofobik kaplamanin statik temas açisini muhafaza etmesi kaplamanin yüksek darbe dayanimina sahip oldugunu göstermektedir. It has been observed that it is extremely resistant to impact tests with water. water jet blow In the test, superhydrophobic water hammer was applied for 45 minutes under pressurized water. the static contact angle of the pavement is still 168° ± 20 and the rolling angle is 4O ± 10. is seen. 32.0 kPa pressure of pressurized water on superhydrophobic surface Although the coating still maintains the static contact angle It shows that the coating has high impact resistance. 400 thousand drops of water (1 drop: impact on the coating from a distance of 30 cm) The static contact angle is still 160° ± 2° and the roll angle is 10°. It is seen that it is ± 2°. At 3.9 kPa on the coating surface of a water droplet Although it creates pressure, the static contact angle of the superhydrophobic coating to protect the coating has high impact resistance. shows.
Su sprey testinde 2,5 cm mesafeden sprey tabancasi yardimiyla yüzeye su püskürtülüp yüzeyde darbe olusturularak kaplamanin darbe dayanimi belirlenmektedir. 1000 turluk islemin sonunda süperhidrofobik kaplamanin statik temas açisi halen (1660 ± 20) ve yuvarlanma açisinin 6O ± 20 oldugu görülmüstür. In the water spray test, water is applied to the surface from a distance of 2.5 cm with the help of a spray gun. impact resistance of the coating by spraying and creating impact on the surface is determined. Static effect of the superhydrophobic coating at the end of 1000 cycles of treatment. The contact angle is still (1660 ± 20) and the rolling angle is 6O ± 20.
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