Applied Chemistry for Engineering, Vol.23, No.2, 169-175, April, 2012
Isopropylphenyl Diphenyl Phosphate 첨가가 PLA필름의 등온결정화 거동과 방염특성에 미치는 영향
Effect of Adding Isopropylphenyl Diphenyl Phosphate on Isothermal Crystallization Behavior and Flame Retardancy of PLA Film
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초록
본 연구에서는 130∼150 ℃ 어닐링조건과 1∼10 wt%의 isopropylphenyl diphenyl phosphate (IPPP) 첨가량이 PLA필름의 결정화거동과 방염특성에 미치는 영향을 평가하였다. IPPP를 1, 5, 10 wt% 첨가한 PLA필름은 140 ℃에서 결정화속도가 가장 빨랐으며 등온조건에서는 1 wt% IPPP를 첨가한 PLA필름의 결정화속도가 5, 10 wt%의 IPPP를 첨가한 PLA필름보다 빨랐다. IPPP를 1 wt% 첨가한 PLA필름의 평균 결정화도는 21.3%이며 평균 결정크기는 24.8 nm였다. IPPP의 첨가량이 증가할수록 결정화도는 증가하고 결정크기는 작아졌다. 또 연소속도는 IPPP의 첨가량이 증가할수록 낮아졌다.
In the study, the effects of 130∼150 ℃ annealing condition and 1∼10 wt% isopropylphenyl diphenyl phosphate (IPPP) on crystallization behavior and flame retardancy of a full name (PLA) film were determined. The crystallization kinetics of PLA films with adding 1, 5, and 10 wt% IPPP at 140 ℃ were higher than those at 130 and 150 ℃. The average crystallinity and crystallite size of PLA film with 1 wt% IPPP were 21.3% and 24.8 nm, respectively. With an increasing IPPP content, the crystallinity of PLA film increased and the crystallite size decreased. The burning rate lowered with an increasing IPPP content as well.
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