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Extruder에서 가교된 EPDM과 HDPE 블랜드의 물성에 관한 연구
하창식,양병태,이진국 부산대학교 공과대학 1986 硏究報告 Vol.31 No.-
The blends of Ethylene-propylene-diene [terpolymer(EDPM) and high density polyethylene (HDPE) have been]prepared by the process 「dynamic curing」that depending on carrying out both blending and a crosslinking reaction at the same time in extruder. Throughout the experimental ranges, the dynamically cured polyblends were shown to be thermoplastic except for highly crosslinked blends of high portions of EPDM. From the DSC determination, the crystallinity decreased with the increasing crosslinking density. The behaviors of melt viscosity were studied as the function of the HDPE composition, the crosslinking density and the shear intensity. The overall melt viscosities were appeared from 6×10³ to 9×10⁴poise over the shear rate of between 3.5se^(-1) and 350sec^(-1) from the capillary rheometer(L/D=40).