DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Bae, Tae-Hyun | - |
dc.contributor.advisor | 배태현 | - |
dc.contributor.author | Yun, Kang Hee | - |
dc.date.accessioned | 2023-06-23T19:31:37Z | - |
dc.date.available | 2023-06-23T19:31:37Z | - |
dc.date.issued | 2022 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=997314&flag=dissertation | en_US |
dc.identifier.uri | http://hdl.handle.net/10203/308868 | - |
dc.description | 학위논문(석사) - 한국과학기술원 : 생명화학공학과, 2022.2,[iii, 38 p. :] | - |
dc.description.abstract | Microfiltration membranes are used in sterilization and pretreatment processes in the bio industry, and demand is increasing as the industrial scale is rapidly growing. The microfiltration membrane with high water permeability with an optimized pore size is used to improve the productivity of the process. Poly(ethersulfone) is suitable as a membrane material because of its excellent mechanical properties and thermal properties, but due to its weak hydrophobicity, organic fouling occurs when the membrane is operated in liquid phase. In this study, fabrication method of porous poly(ethersulfone) microfiltration membrane using vapor-induced phase separation and hydrophilic modification of the surface were described. The pore size of microfiltration membrane was optimized by controlling the composition of the dope solution and the vapor exposure time. By combining non-solventinduced phase separation and vapor-induced phase separation, symmetric and asymmetric structure membranes were prepared and their properties were compared. The membrane prepared by the vapor-induced phase separation method had high water permeability and mechanical strength. The fouling resistance of the membrane was improved by surface modification using atom transfer radical polymerization of hydrophilic molecules. | - |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.title | Preparation and hydrophilic modification of porous poly(ethersulfone) microfiltration membranes | - |
dc.title.alternative | 정밀여과용 다공성 폴리에테르술폰 분리막 제조와 표면 친수성 개질 연구 | - |
dc.type | Thesis(Master) | - |
dc.identifier.CNRN | 325007 | - |
dc.description.department | 한국과학기술원 :생명화학공학과, | - |
dc.contributor.alternativeauthor | 윤강희 | - |
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