서지주요정보
솔젤법을 이용한 유-무기 복합 필름 제조에 관한 연구 = Preparation of organic-Inorganic hybrid films by sol-gel method
서명 / 저자 솔젤법을 이용한 유-무기 복합 필름 제조에 관한 연구 = Preparation of organic-Inorganic hybrid films by sol-gel method / 이상엽.
저자명 이상엽 ; Lee, Sang-Yup
발행사항 [대전 : 한국과학기술원, 1998].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8008776

소장위치/청구기호

학술문화관(문화관) 보존서고

MCHE 98023

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

In this thesis, sol-gel method was applied to make an organic-inorganic hybrid material at low temperature. A silane coupling agent VTES and PVA hybrid material were used to improve the adhesion between the polypropylene base film and the inorganic materials. TEOS and PVA were emplayed as an inorganic and an organic compounds respectively. The polypropylene film was pretreated by corona plasma. Corona treatment derived hydrophilic functional groups on the polypropylene film surface such as carbonyl and carboxyl group. These hydrophilic functional groups improved the wetting property between the substrate polypropylene film and the coating solution. Two kinds of coating solutions were prepared; one was composed of TEOS and VTES and the others was a mixture of TEOS,VTES and PVA each with various contents. TEOS/VTES coating solution showed enhanced hydrophobicity as the VTES content increased. This was due to the vinyl groups which anchored to the silicon atoms in VTES. Enhanced hydrophobicity induced increment in the water contact angle and thereby decreased the capillary pressure. Consequently, the added VTES created less cracks on the film during the subsequent drying process. In addition, PVA provide the hydrogen bonding between the silica oxide structures. Although the presence of TEOS disturbed the PVA crystallization, VTES had no sensible effect on the PVA crystal growth. Both of increments in PVA and TEOS improved oxygen barrier property of the coated film. On the contrary, increment in VTES made the barrier property worse. Due mainly to the hydrogen bonding between PVA and the other compounds. Especially, TEOS/PVA coated film showed much improved barrier property. Inspite of slight deterioration in optical transparency after the coating, the film maintained still visible transparency. Moreover, the coating of inorganic-organic hybrid materials made the polypropylene film surface harder.

서지기타정보

서지기타정보
청구기호 {MCHE 98023
형태사항 vi, 62 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Sang-Yup Lee
지도교수의 한글표기 : 양승만
지도교수의 영문표기 : Seung-Man Yang
학위논문 학위논문(석사) - 한국과학기술원 : 화학공학과,
서지주기 참고문헌 : p. 60-62
주제 솔젤법
유-무기 복합 필름
Sol-Gel
Hybrid
TEOS
VTES
PVA
QR CODE qr code