http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Lingling Gu,Sheng Zhang,Hongfei Li,Jun Sun,WuFei Tang,Liqian Zhao,Xiaoyu Gu 한국섬유공학회 2019 Fibers and polymers Vol.20 No.8
Urea (U) was successfully intercalated into Kaolinite (Kaol) and the product K-U was introduced intopoly(butylene succinate) (PBS)/intumescent flame retardants (IFR) by melt blending. The structure of K-U was characterizedby X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). The flame retardancy, thermal degradation,and combustion behavior of PBS composites were characterized by limiting oxygen index (LOI), vertical burning test to getUL-94 rating, thermogravimetricanalysis (TGA), and cone calorimeter test (Cone). With the introduction of K-U and IFRinto PBS, the LOI obviously increased from 21.9 % for neat PBS to 40.1 % for composite containing 20 wt% IFR/5 wt% KU;PBS cannot pass any UL-94 rating but the composite passed UL-94 V-0 rating. Similarly, the peak heat release rate(PHRR) in cone test decreased from 576 kW/m2 to 292 kW/m2. SEM results showed the char of the composite became morecompact and smooth.