서지주요정보
초음파를 이용한 고분자 포움의 가공 = Ultrasonic processing of polymer foam
서명 / 저자 초음파를 이용한 고분자 포움의 가공 = Ultrasonic processing of polymer foam / 변성광.
저자명 변성광 ; Byeon, Seong-Kwang
발행사항 [서울 : 한국과학기술원, 1989].
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소장정보

등록번호

4105673

소장위치/청구기호

학술문화관(문화관) 보존서고

MPE 8913

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

In this thesis, ultrasonically induced bubble formation in a thermoplastic resin was investigated experimentally and theoretically. A general purpose polystyrene and polyethylene mixed with polyethylene wax which had been saturated by nitrogen in a pressure chamber were excited by ultrasonic vibration to increase the rate of bubble nucleation. The effect of processing parameters, supersaturation pressure and temperature, on the number and size of bubbles was also examined. The ultrasonically induced bubble nucleation was modelled by modifying classical nucleation theory. Although there is some discrepancy between the theoretical predictions and the experimental results, the theoretical investigation explained the effect of ultrasonic disruption on the bubble nucleation mechanism in a gas supersaturated liquid. The possible applications of the ultrasonic nucleation to various polymer processing techniques will be discussed and finally the application of producing the micrecellular foam by ultrasonic disruption will be proposed.

서지기타정보

서지기타정보
청구기호 {MPE 8913
형태사항 [vii], 72 p. : 삽도 ; 26 cm
언어 한국어
일반주기 부록 : Ⅰ, 자유 에너지 유도. - Ⅱ, Photograph of experiment setup. - Ⅲ, Block diagram of experiment process. - Ⅳ, 제안된 미세포 가공 공정
저자명의 영문표기 : Seong-Kwang Byeon
지도교수의 한글표기 : 윤재륜
지도교수의 영문표기 : Jae-Ryoun Youn
학위논문 학위논문(석사) - 한국과학기술원 : 생산공학과,
서지주기 참고문헌 : p. 33-34
주제 Nucleation.
Foamed materials.
Bubbles.
초음파 응용. --과학기술용어시소러스
고분자 기공. --과학기술용어시소러스
핵 생성. --과학기술용어시소러스
세공. --과학기술용어시소러스
기포. --과학기술용어시소러스
Ultrasonic equipments.
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