서지주요정보
HPC 수용액의 유변학적 성질에 관한 고찰 = A study on rheological properties of aqueous HPC solutions
서명 / 저자 HPC 수용액의 유변학적 성질에 관한 고찰 = A study on rheological properties of aqueous HPC solutions / 이선근.
저자명 이선근 ; Lee, Sun-Keun
발행사항 [대전 : 한국과학기술원, 1991].
Online Access 제한공개(로그인 후 원문보기 가능)원문

소장정보

등록번호

8002244

소장위치/청구기호

학술문화관(문화관) 보존서고

MCE 9116

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

The flow behaviors of rod-like polymer solutions were investigated. Hydroxypropyl cellulose was chosen as a polymer sample. The stress-optical rule was confirmed in the semi-dilute region. However, the polydispersity (Mw/Mn=7.2) of polymer affects the validity of stress-optical rule. In the polydispersed system, the rotational diffusivity played an important role. Since a long rod-like molecule showed a lower rotational diffusivity, it oriented in the low shear rate than a short rod-like molecule did. As a result the optical measurements were more sensitive in the low shear rate than in the high shear rate. The concentration region that the stress-optical rule was not applied, the stress-optical coefficient decreased with shear rate. The birefringence increased and the orientation angle decreased with concentration and shear rate. The birefringence depended on not only concentration but also molecular weight(the length of rod). In this research the stress-optical rule was confirmed to be applicable to the solution with the mass fraction of 1.5% to 5%, but at the mass fraction of 7.5% the stress-optical coefficient decreased with shear rate. The stress-optical rule was not confirmed in the solution of 7.5% mass fraction.

서지기타정보

서지기타정보
청구기호 {MCE 9116
형태사항 viii, 72 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Sun-Keun Lee
지도교수의 한글표기 : 정인재
지도교수의 영문표기 : In-Jae Chung
학위논문 학위논문(석사) - 한국과학기술원 : 화학공학과,
서지주기 참고문헌 : p. 70-72
주제 Polymer solutions.
표면 성질. --과학기술용어시소러스
고분자 용액. --과학기술용어시소러스
Rheology.
QR CODE qr code