Wettability of Liquid Mixtures on Porous Silica and Black Soot Layers
Author(s):
Article Type:
Research/Original Article (دارای رتبه معتبر)
Abstract:
Sophisticated manipulation of surface roughness and solid surface energy are widely used to design super-hydrophobic layers. In this work, we designed highly porous silica layer with contact angle (CA) of 145°, and its robustness was promoted with thermal treatment. Wettability of coated layer is studied with CA measurement for different liquid surface tensions using diluted organic solvents (ethanol, acetone or ethylene glycol) with distilled water. Zisman plot is also used to estimate the surface energy of the porous silica. The results are compared with coated black soot as a hydrophobic layer. Moreover, thin layer of Au (~10 nm) was coated on the porous silica layers to study the effects of chemical properties on the wetting behavior. The thickness of the Au thin layer is negligible compared to the surface roughness, so the drastic decrease in CA rates can be related to the layers' porosity and the affinity of solvents to liquid/air and liquid/solid interfaces.
Keywords:
Language:
English
Published:
Progress in Color, Colorants and Coatings, Volume:13 Issue: 4, Autumn 2020
Pages:
239 to 249
https://magiran.com/p2119642
دانلود و مطالعه متن این مقاله با یکی از روشهای زیر امکان پذیر است:
اشتراک شخصی
با عضویت و پرداخت آنلاین حق اشتراک یکساله به مبلغ 1,390,000ريال میتوانید 70 عنوان مطلب دانلود کنید!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی نامحدود همه کاربران به متن مطالب تهیه نمایند!
توجه!
- حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران میشود.
- پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانههای چاپی و دیجیتال را به کاربر نمیدهد.
In order to view content subscription is required
Personal subscription
Subscribe magiran.com for 70 € euros via PayPal and download 70 articles during a year.
Organization subscription
Please contact us to subscribe your university or library for unlimited access!