Surface wettability control of porous membrane via vapor phase deposition process = 기상 증착 공정을 이용한 다공성 멤브레인의 표면 젖음성 조절

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A membrane is selective barrier that some materials can penetrate through the pores and other materials can be blocked. Recently, for the efficient separation, many researches for assigning various functionality have been received great attention. In the whole study of this thesis, the novel vapor deposition method called iCVD process (initiated chemical vapor deposition) is introduced for simply and efficiently modifying wettability of porous substrates like membranes. Owing to the advantages of vapor phase deposition, delicate substrate easily damaged by solvents can be modified. Also, the polymer film can be conformally deposited on the pattern or porous substrate. Using this iCVD process, firstly, robust superhydrophobic polymer was deposited on porous substrate. This polymer film shows superhydrophobicity as well as good chemical and mechanical stability. Second, surface energy-controlled membrane was fabricated for separating microalgal lipids from wet biomass. Third, the Janus property was assigned which has both hydrophobicity and hydrophilicity. Simple etching process was applied to superhydrophobic polymer coated porous substrate. At last, the hydrophilic and underwater oleophobic polymer was deposited on porous membrane for efficient oil/water separation including oil/water emulsion.
Advisors
Im, Sung Gapresearcher임성갑researcher
Description
한국과학기술원 :생명화학공학과,
Publisher
한국과학기술원
Issue Date
2016
Identifier
325007
Language
eng
Description

학위논문(박사) - 한국과학기술원 : 생명화학공학과, 2016.8 ,[xiii, 107 p. :]

Keywords

wettability control; hydrophobic; hydrophilic; 분리막; 기상 증착 공정; 표면 젖음성 조절; 발수; 친수; membrane; vapor phase deposition

URI
http://hdl.handle.net/10203/222175
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=663126&flag=dissertation
Appears in Collection
CBE-Theses_Ph.D.(박사논문)
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