Structure and properties of the dynamically cured EPDM/HDPE blends = 전단력하에서 가교된 EPDM 과 HDPE블랜드의 구조와 물성에 관한 연구

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The structure and properties of the dynamically cured blends of the high density polyethylene(HDPE) and ethylene-propylene-diene terpolymer(EPDM) were studied. The dynamically cured blends were prepared using an annular curing die with shear generated by the rotation of the inner cylinder. EPDM was cured with dicumyl peroxide(DCP) in the presence of HDPE under different shear rates. The effects of shear rate, DCP concentration, and HDPE/EPDM composition on the morphology and the rheological, and mechanical properties of the dynamically cured HDPE/EPDM blends were studied. The rheological and mechanical properties of the blends were investigated by capillary rheometer, Rheometrics dynamic spectrometer, tensile tester, and durometer. The morphology of the blends was observed by the optical microscope, scanning electron microscope (SEM), and transmission electron microscope(TEMO. The processing characteristics during the continuous curing reaction was also investigated. All of the dynamically cured blends prepared in this study could be fabricated by injection molding due to the characteristic morphological feature even though there existed crosslinked rubber as one component. The blends showed greatly improved properties in comparison with the uncured blends.
Advisors
Kim, Sung-Chulresearcher김성철researcher
Description
한국과학기술원 : 화학공학과,
Publisher
한국과학기술원
Issue Date
1989
Identifier
61331/325007 / 000815028
Language
eng
Description

학위논문(박사) - 한국과학기술원 : 화학공학과, 1989.8, [ xv, 140 p. ]

URI
http://hdl.handle.net/10203/29208
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=61331&flag=dissertation
Appears in Collection
CBE-Theses_Ph.D.(박사논문)
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