Synthesis of Crosslinked Cyclodextrin and its Application for Flame-Retardant Polypropylene
Using hexamethylene diisocyanate(HDI) as crosslinking agent, a series of cyclodexdrin nanosponges(HDI-CDs) with different degree of crosslinking have been synthesized and characterized.Employing ammonium polyphosphate (APP) as acid sources and foaming agent, the PP/APP/HDI-CDs composites were prepared and show an improvement in flame retardant properties compared to PP/APP/CD.PP/APP/HDI-CD(4) shows the best in both limited oxygen index (LOI) and vertical burning(UL-94) test, which passed the V-0 rating with LOI of 32.8% under a total loading of 28 wt.%.The images of scanning electron microscope (SEM) indicate that crosslinking of CDs improved its thermal stability and increased its specific surface area which lead to a more compact carbon layer.
Siyin Ding Feng Wang Peng Liu Mingshu Yang
Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastic, Institute Beijing National Laboratory for Molecular Sciences, Key Laboratory of Engineering Plastic, Institute
国际会议
杭州
英文
160-161
2018-06-14（万方平台首次上网日期，不代表论文的发表时间）