Functionalizing graphene decorated with phosphorus-nitrogen containing dendrimer for high-performance polymer nanocomposites

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• 作者：Yanxian Jin^a ; Guobo Huang^a ; ^{huangguobo@tzc.edu.cn" class="auth_mail" title="E-mail the corresponding author} ; Deman Han^a ; Pingan Song^b ; ^{pingansong@gmail.com" class="auth_mail" title="E-mail the corresponding author} ; Wenyuan Tang^a ; Jianshe Bao^a ; Rongrong Li^a ; Yilin Liu^c
• 关键词：A. Polymer-matrix composites (PMCs) ; A. Nano-structures ; B. Thermal properties ; Graphene
• 刊名：Composites Part A: Applied Science and Manufacturing
• 出版年：2016
• 出版时间：July 2016
• 年：2016
• 卷：86
• 期：Complete
• 页码：9-18
• 全文大小：3988 K

文摘

In this paper, we demonstrate a novel strategy for fabricating advanced polymer composites based on functionalized graphene oxide decorated with phosphorus-nitrogen-containing dendrimers (PND-GO). Both X-ray diffraction and transmission electron microscopy results show that reduced PND-GO uniformly disperses within polymer matrix and is exfoliated in polyurethane (PU) via in situ polymerization. Cone calorimetry results show that incorporating 2 wt% reduced PND-GO into PU decreases the peak heat release rate by 53% and prolongs the time to ignition by 28 s as compared with the PU bulk. Besides, the tensile strength and Young’s modulus are remarkably enhanced by about 2 times and 5 times, respectively.