서지주요정보
용융 PET상에서의 유기용매의 확산 = Diffusion of oraganic vapors in PET melt
서명 / 저자 용융 PET상에서의 유기용매의 확산 = Diffusion of oraganic vapors in PET melt / 문도영.
저자명 문도영 ; Moon, Do-Young
발행사항 [서울 : 한국과학기술원, 1989].
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소장정보

등록번호

4105530

소장위치/청구기호

학술문화관(문화관) 보존서고

MCE 8911

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

Diffusion coefficients are measured for PET-EG system at 265℃ and for PET-EA system for temperature range of 262-273℃. Experiments were carried out using a quartz spring sorption apparatus which was modified for high temperature measurements using high temperature silicon oil as a heat transfer fluid. We developed a simple mathematical model for the reaction combined diffusion because PET-EG system involves reactions with diffusional sorption. However, PET-EA system was a diffusion controlling process with little reaction. Experimental data for these two systems were compared with each other. Diffusion coefficients were obtained by considering the effect of sample depth in order to reduce the effect of reaction. From this method, diffusion coefficient in PET-EG system at 265℃ was $5.34\times10^{-5}cm./min$ and in PET-EA system at 262℃ was $4.7\times10^{-4}cm/min$. Temperature dependence on solubility in these two systems showed general phenomena and pressure dependence on solubility showed that Henry's law is valid. Apparatus used in this experiment also could be applied other polymer melt system of which the melting point was less than 290℃.

서지기타정보

서지기타정보
청구기호 {MCE 8911
형태사항 vii, 62 p. : 삽도 ; 26 cm
언어 한국어
일반주기 부록 수록
저자명의 영문표기 : Do-Young Moon
지도교수의 한글표기 : 박오옥
지도교수의 영문표기 : O-Ok Park
학위논문 학위논문(석사) - 한국과학기술원 : 화학공학과,
서지주기 참고문헌 : p. 56-58
주제 Mathematical models.
확산. --과학기술용어시소러스
수치 해법. --과학기술용어시소러스
Diffusion.
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