Flame retarded polymer nanocomposites: Development,trend and future perspective

Polymer nanocomposites are a new class of flame retarded materials which have attracted much attention and considered as a revolutionary new flame retardant approach.A very small amount of nano flame retardants (normally < 5 wt%) can significantly reduce the heat release rate (HRR) and smoke emission (SEA) during the combustion of polymer materials.Moreover,the addition of nano flame retardants can also improve the mechanical properties of polymer materials compared with the deterioration of traditional flame retardants.This paper reviews the recent development in the flame retardant field of polymer nanocomposites and also introduces the related research in our lab.The challenges and problems are discussed and the future development of flame retarded polymer nanocomposites is prospected.

纳米阻燃高分子材料：现状、问题及展望

纳米阻燃体系是一种新型的聚合物阻燃体系,被誉为阻燃技术的革命.极少量(≤5wt%)纳米阻燃剂的加入即能显著降低高分子材料燃烧时的热释放速率(HRR)和烟密度(SEA),延缓其燃烧过程,还能不同程度地提高材料的力学性能.本文总结了近年来国内外纳米阻燃领域的进展,介绍了本课题组在纳米阻燃方面所做的工作,探讨了纳米阻燃研究中存在的问题,并对其未来的发展进行了展望.

Immunity:研究开发出最优的HIV疫苗递送模式

HIV已不再占据头条新闻。这主要是因为抗逆转录病毒药物的成功开发已将HIV病毒感染导致的艾滋病（AIDS）转化为一种慢性的可控制的疾病。然而。当前在全世界大约0．367亿名HIV感染者中，仅约一半的人能够获得控制这种病毒所需的药物。与此同时。新的HIV感染率持续保持在非常高的水平，这突出强调了需要开发一种预防性疫苗。然而，几十年来。