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오대희(D . H . Oh),김대진(D . J . Kim),서관호(K . H . Seo) 한국고무학회 1999 엘라스토머 및 콤포지트 Vol.34 No.4
N/A Di-2-ethyl hexyl phthalate (DOP) and di-2-ethyl hexyl adiphate (DOA) were mixed with poly(vinyl chlorides) (PVC) which have different degrees of polymerization (DP). Tensile strength, elongation, density, abrasion resistance, and hardness of these compounds were measured, High molecular weight PVC(DP 2500) was superior to that of DP 1300 for tensile strength, Hardness. But elongation and abrasion resistance of P1300 systems were better than those of P2500 systems. The densities of both systems were almost same. On the other hand, DOP Plasticized PVC was superior to DOA plasticized one for tensile strength, elongation, hardness. In cases of density, abrasion resistance, and flexual resistance, DOA systems were better than those of DOP systems.
EPDM 발포체의 가황거동 및 기계적물성에 미치는 분쇄고무의 영향
서관호,임학상,임정철 한국고무학회 2000 엘라스토머 및 콤포지트 Vol.35 No.2
The cure and physical properties of EPDM foam containing ground rubber and carbon black as filler were studied. The cure time reduced with the addition of filler. This result means reducing the operation time. In case of ground ruber was used, blowing ratio, tensile strength, and elongation were decreased rapidly at above 30 phr. On the other hand, in case of carbon black, they showed similar physical properties until 70 phr was used limited to 30 phr to make a good foam, which should be due to low interfacial interaction between EPDM and ground rubber. All the EPDM foams showed excellent thermal stability.
분쇄 폐타이어와 SBR 을 이용한 발포체의 가황거동 및 물성
서관호,임학상,임정철 한국고무학회 1997 엘라스토머 및 콤포지트 Vol.32 No.2
The effect of the ground rubber as filler on cure behavior and physical properties of SBR foam was studied in this research. We also studied how the amount and the particle size of the ground rubber affect them. As the ground rubber were added, the scorch time and the optimum cure time were shorter. It may be due to the migration of accelerators in the ground rubber into the SBR, we imagine. Adding the more ground rubber, however, obtaining the lower maximum torque. This is caused by the poor adhesive force between rubber surfaces as the ground rubber were added. When the same quantity of filler were added, 2G excelled CaCO₃ in tesile stress and elongation at break. Tensile fracture surfaces became rougher as the amount of the ground rubber increased as well as the particle size of the ground rubber was larger.