KLI

Precision Patterning of Superhydrophobic- Superhydrophilic Microdroplet Arrays: Towards On-Demand Sustainable Manufacturing of Functional Materials

Metadata Downloads
Abstract
Surface wettability is an important phenomenon that has implications in many different scientific domains. It is determined by the interaction between liquids and solid substrates. This study investigates the production of superhydrophobic/superhydrophilic surfaces on aluminum alloy (Al 6061) by non- hazardous chemical treatments and nanosecond-pulse laser processing as an environmentally acceptable method of producing microdroplet arrays. The method used is discontinuous dewetting, which allows for accurate droplet generation without the need for costly automation. Process parameters are optimized to achieve effective water separation between superhydrophilic patterns, and the impact of laser power on water spreading is demonstrated. Surface chemistry and morphology are characterized at each stage of the fabrication process through various analyses. The fabricated surfaces exhibit reliable stability under long exposure to air, freshwater, and intense heat conditions. Additionally, the prospective of using disposable aluminum dishes to produce customizable superhydrophobic surfaces with superhydrophilic arrays is introduced. This eco-friendly approach addresses the need for higher array density platforms with small droplet volumes, particularly relevant for biomedical and pharmacological applications demanding high detection sensitivity and throughput processing.
Author(s)
바피 모함마드 임란
Issued Date
2024
Awarded Date
2024-08
Type
Dissertation
Keyword
Superhydrophobic surfaceSuperhydrophilic patternsWettabilityLaser texturingDroplet microarrayprecision
URI
https://oak.ulsan.ac.kr/handle/2021.oak/13278
http://ulsan.dcollection.net/common/orgView/200000812737
Alternative Author(s)
Mohammad Imran Bappy
Affiliation
울산대학교
Department
일반대학원 기계자동차공학과
Advisor
천두만
Degree
Master
Publisher
울산대학교 일반대학원 기계자동차공학과
Language
eng
Rights
울산대학교 논문은 저작권에 의해 보호받습니다.
Appears in Collections:
Mechanical & Automotive Engineering > 1. Theses (Master)
Authorize & License
  • Authorize공개
Files in This Item:

Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.