Geri Dön

Süperhidrofobik polipropilen yüzeyler

Superhydrophobic polypropylene surfaces

  1. Tez No: 154972
  2. Yazar: KAZIM ÖZTUNALI
  3. Danışmanlar: PROF.DR. YILDIRIM ERBİL
  4. Tez Türü: Yüksek Lisans
  5. Konular: Kimya, Chemistry
  6. Anahtar Kelimeler: Süperhidrofobiklik, Nilüfer Etkisi, Temas Açısı, Çöktürücü, Yüzey Pürüzlülüğü, Cassie-Baxter modeli, Polipropilen
  7. Yıl: 2004
  8. Dil: Türkçe
  9. Üniversite: Kocaeli Üniversitesi
  10. Enstitü: Fen Bilimleri Enstitüsü
  11. Ana Bilim Dalı: Kimya Ana Bilim Dalı
  12. Bilim Dalı: Belirtilmemiş.
  13. Sayfa Sayısı: 105

Özet

SÜPERHİ DROFOBİK POLİPROPİLEN YÜZEYLER Kazım ÖZTUNALI

Özet (Çeviri)

SUPERHYDROPHOBIC POLYPROPYLENE SURFACES Kazım ÖZTUNALI KEY WORDS: Superhydrophobicity, Lotus Effect, Contact Angle, Precipitator, Surface roughness, Cassie-Baxter model, Polypropylene. ABSTRACT: Superhydrophobicity is an important subject that has been widely researched in the recently years. It was found that the surface of the lotus plant was very rough and also superhydrophobic in structure and the water drops roll over it. This behavior was called as“lotus effect”in the literature. Polypropylene is a cheap polymer which can be easily found and was tried to generate a superhydrophobic surface in mis research. In this work, the parameters mat affect the superhydrophobic surface structure produced from polypropylene were studied. The important parameters were: the polymer concentration in solution with and without precipitator, the concentration of precipitator in solution; the application temperature and addition of polyethylene into polymer solution. Superhydrophobic surfaces were synthesized by coating polypropylene from its solution onto the glass slide by a dipping method. The surface is an example of a non-uniform and very rough structure morphologically. The surface superhydrophobicity is proportional with the concentration and the precipitator ratio in solution. The surface roughness was increased by the increase of the polymer concentration and precipitator solvent in solution till the optimum values were received. When the application temperature was increased from the gelation temperature to the transparency temperature in the polymeric solution, the contact angle values were lowered. The addition of the polyethylene into the solution was reversely affected in the surface roughness. Water drop contact angles were measured by magnifying photography and the values were calculated by using some old and new methods. Also, the surface structures were photographed by optical microscopy from plan view. The area of porosity was determined directly by image analysis of optical micrographs. The contact angle results were evaluated together with the porosity area and the results supported the Cassie-Baxter model well-known in the current literature. m

Benzer Tezler

  1. Tez No

    211986

    Cyclic olefin kopolimerden süperhidrofobik yüzey sentezi ve karakterizasyonu

    Synthesis and characterization of superhydrophobic surface from cyclic olefine copolymer

    ERDİNÇ DOĞANCI

    Yüksek Lisans

    Türkçe

    Türkçe

    2007

    KimyaGebze Yüksek Teknoloji Enstitüsü

    Kimya Mühendisliği Ana Bilim Dalı

    PROF. DR. H. YILDIRIM ERBİL

  2. Tez No

    397765

    Investigation of optical and wettability properties of polymer coatings

    Polimer kaplamaların optik ve ıslanabilirlik özelliklerinin araştırılması

    ELBRUZ MURAT BABA

    Yüksek Lisans

    İngilizce

    İngilizce

    2015

    Polimer Bilim ve Teknolojisiİstanbul Teknik Üniversitesi

    Nanobilim ve Nanomühendislik Ana Bilim Dalı

    PROF. DR. ESRA ÖZKAN ZAYİM

    YRD. DOÇ. DR. CAHİDE ELİF ÖZEN CANSOY

  3. Tez No

    647109

    Poliolefin kaplanarak süperhidrofobik hale getirilen polyester kumaşların sentezi ve karakterize edilmesi

    Synthesis and characterization of superhydrophobic polyester fabrics coated by polyolefins

    BAHAR ŞENGÜL

    Yüksek Lisans

    Türkçe

    Türkçe

    2020

    Kimya MühendisliğiGebze Teknik Üniversitesi

    Kimya Mühendisliği Ana Bilim Dalı

    PROF. DR. HÜSNÜ YILDIRIM ERBİL

  4. Tez No

    352592

    Süperhidrofobik tekstil yüzeylerinin oluşturulması ve karakterizasyonu

    Preparation and characterization of superhydrophobic texture surfaces

    GÖZDE ULTAV

    Yüksek Lisans

    Türkçe

    Türkçe

    2014

    Kimya MühendisliğiGazi Üniversitesi

    Kimya Mühendisliği Ana Bilim Dalı

    PROF. DR. AHMET BİÇER

  5. Tez No

    346196

    Ultrahigh resolution optical spectroscopy of liquid microdroplets using tapered optical fiber waveguides

    Süperhidrofobik yüzey üzerinde duran sıvı mikrodamlaların inceltilmiş optik fiber ile ultrayüksek çözünürlükte optik spekstroskopisi

    YASİN KARADAĞ

    Doktora

    İngilizce

    İngilizce

    2013

    Fizik ve Fizik MühendisliğiKoç Üniversitesi

    Fizik Ana Bilim Dalı

    DOÇ. DR. ALPER KİRAZ

Geri Dön