서지주요정보
전단력하에서 가교된 EPDM과 PP 블랜드의 물성에 관한 연구 = A study on the properties of dynamically cured EPDM/PP blends
서명 / 저자 전단력하에서 가교된 EPDM과 PP 블랜드의 물성에 관한 연구 = A study on the properties of dynamically cured EPDM/PP blends / 임동준.
저자명 임동준 ; Ihm, Dong-Joon
발행사항 [서울 : 한국과학기술원, 1985].
Online Access 제한공개(로그인 후 원문보기 가능)원문

소장정보

등록번호

4103081

소장위치/청구기호

학술문화관(문화관) 보존서고

MCE 8543

SMS전송

도서상태

이용가능

대출가능

반납예정일

초록정보

Polyolefine blends of ethylene-propylene-diene terpolymer (EPDM) and polypropylene(pp) have been studied. Blends were prepared in a laboratory internal mixer where EPDM phase was cured under shear with dicumyl peroxide(DCP) at different shear conditions(Blend-cure). Blends were also prepared for comparison from EPDM which has been dynamically cured in the absence of PP(Cure-blend). The effect of DCP concentration, shear intensity of the mixing, and rubber/plastic composition were studied. The melt viscosity was measured by a capillary rheometer. The rate of crystallization and the degree of crystallinity were determined by differential scanning calorimetry. The tensile tests were done according to ASTM D 1708. In Blend-cure, the melt viscosity increased with increasing DCP concentration at 75% EPDM and decreased with increasing DCP concentration at 75% PP for EPDM/PP blends. In Cure-blend, however, the melt viscosity increased with increasing DCP concentration for all compositions. The melt viscosity decreased with shear intensity of mixing presumably due to the formation of the segregated microdomain of the crosslinked EPDM gels for both cases. The crystallization rate was higher in EPDM/PP blends than PP homopolymer. The crystallization rates for various blending conditions were also compared. In Blend-cure, the tensile strength decreased with increasing DCP concentration for 50/50 and 25/75 EPDM/PP blends, and increased for 75/25 EPDM/PP blend. But, tensile strength increased with DCP concentration in Cure-blend for 50/50 and 25/75 EPDM/PP blends. Increasing shear intensity of the mixing, significant changes in mechanical properties were not observed. But, the melt viscosity decreased with increasing shear intensity. It will give a good processability in a crosslinked EPDM blends.

서지기타정보

서지기타정보
청구기호 {MCE 8543
형태사항 iii, 91 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Dong-Joon Ihm
지도교수의 한글표기 : 김성철
지도교수의 영문표기 : Sung-Chul Kim
학위논문 학위논문(석사) - 한국과학기술원 : 화학공학과,
서지주기 참고문헌 : p. 86-89
주제 Polymers.
기계적 성질. --과학기술용어시소러스
고분자. --과학기술용어시소러스
Matter --Properties.
QR CODE qr code