화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2019년 봄 (04/24 ~ 04/26, 제주국제컨벤션센터)
권호 25권 1호, p.30
발표분야 고분자(Polymer)
제목 Non-Einstein viscosity phenomenon of ABS composites containing lignin-polycaprolactone (LPCL) particulates highly dispersed by high-shear stress
초록 Lignin powder was modified via ring-opening polymerization (ROP) of caprolactone to form a lignin-polycaprolactone (LPCL) particulate. The LPCL particulates were mixed with an acrylonitrile-butadiene-styrene (ABS) matrix at the extremely high rotational speed of up to 3,000 rpm. Using this high-shear extruding mixer, the LPCL particulate size was controlled in the range of 3.4 μm (conventional twin-screw extrusion) down to 640 nm (high-shear mixer of 3,000 rpm), depending on the applied shear stress. The resulting LPCL/ABS composites clearly showed non-Einstein viscosity phenomena, exhibiting 1,754 Pa∙s, which should be compared with 6,189 Pa∙s of the neat ABS resin measured at 1 rad/s and 210 oC. The LPCL particulate morphology, damping characteristics, and light transmittance of the developed composites were thoroughly investigated at various levels of applied shear rates and mixing conditions.
저자 김성훈1, 유지왕1, 박인경1, 김나연2, 황의석3, 김동학3, 남재도1
소속 1성균관대, 2성균관대 에너지과학과, 3성균관대 고분자공학과
키워드 고분자
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