서지주요정보
표면 처리된 점토의 제조와 이의 폴리에틸렌에 대한 충진제로서의 성질 = Surface-treated clays : their preparation and properties as fillers for polyethylene
서명 / 저자 표면 처리된 점토의 제조와 이의 폴리에틸렌에 대한 충진제로서의 성질 = Surface-treated clays : their preparation and properties as fillers for polyethylene / 임균택.
저자명 임균택 ; Lim, Gyun-Taek
발행사항 [서울 : 한국과학기술원, 1979].
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소장정보

등록번호

4000756

소장위치/청구기호

학술문화관(문화관) 보존서고

MCE 7914

휴대폰 전송

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초록정보

Percent research is concerned with polymerization of various monomers on the surface of different clays and with the properties of thus prepared clays as polymer fillers. The monomers used were methyl methacrylate, styrene and butadiene and Japanese acid clay. The clay surfaces were activated by acid treatment (50% $H_2SO_4$),followed by drying at 120 ℃ under vacuum. The samples were subjected to the following polymerization processes : 1) Redox solution polymerization in which N, N-dimethyl aniline was adsorbed on the clay prior to the polymerization of monomer with a peroxide. Methyl methacrylate was polymerized this manner. 2) Gas phase polymerization. The monomers polymerized were styrene and butadiene. The polymer-coated samples were analyzed by I.R., TGA, and furnace combustion, and then as fillers for low density polyethylene. The filled applied as fillers for low density polyethylene. The filled samples were subjected to mechanical testings and the following observation were made. i) Generally the following to break was reduced by filling, while the tensile strength and initial modulus increased, regardless of the type of fillers employed. ii) Acid-treated clays exhibited higher tensile strength and initial modulus, and lower elongation to break than that of untreated clays, presumably due to stonger physical adhesion generated by the surface porosity. iii) Polymer-encapsulated halloysite showed lower elongation to break, and higher tensile strength and initial modulus than those of acid-treated halloysite. Strength of chemical adhesion between polymer-encapsulated halloysite and the polymer matrix was not as strong as physical adhesion between acid-treated halloysite and the matrix indicating high effectiveness of surface porosity. iv) Untreated halloysite showed a reduced effect of the concentration of filler on the tensile strength and initial modulus because of lower strength of adhesion.

서지기타정보

서지기타정보
청구기호 {MCE 7914
형태사항 [iv], 42 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Gyun-Taek Lim
지도교수의 한글표기 : 조의환
지도교수의 영문표기 : I-Whan Cho
학위논문 학위논문(석사) - 한국과학기술원 : 화학공학과,
서지주기 참고문헌 : p. 38-42
주제 Polymerization.
Clay.
Matter --Properties.
중합. --과학기술용어시소러스
점토. --과학기술용어시소러스
물리적 성질. --과학기술용어시소러스
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