摘要
以氧化解压多壁碳纳米管的方法制备了氧化石墨烯纳米带(GONRs),然后用异氟尔酮二异氰酸酯(IPDI)对GONRs化学修饰得到功能氧化石墨烯纳米带。采用溶液成形的方法在涂膜机上制备了功能氧化石墨烯纳米带(IPGONRs)/热塑性聚氨酯(TPU)复合材料薄膜,研究了IP-GONRs对TPU薄膜阻隔性能的影响。扫描电镜和X射线衍射的数据表明,IP-GONRs完全剥离地均匀分散在TPU基体中,并且基本沿着纳米复合材料薄膜表面平行分布。仅添加3.0%(质量分数,下同)的IP-GONRs时,TPU薄膜的氧气透过率便下降67%,因此获得了具有优异阻隔性能的IPGONRs/TPU纳米复合材料薄膜。这种具有优异阻隔性能的复合材料薄膜在食品包装和轻量气体存储容器方面有潜在的应用。
The graphene oxide nanoribbons（ GONRs） were prepared by longitudinallu unzipping multiwalled carbon nanotubes,and then were modified with isophorone diisocyanate（ IPDI）. The functionalized graphene oxide nanoribbons（ IP-GONRs） /thermoplastic polyurethane（ TPU） composite films were prepared by solution on the coating machine. The effects of IP-GONRs on barrier and mechanical properties of TPU films were studied. The SEM and XRD results show that IP-GONRs in TPU matrix are fully exfoliated,uniformly dispersed and substantially paralleled along surface of nanocomposite films. The oxygen transmission rate of TPU film declines by about 67% at low IP-GONRs loading of 3. 0%. A remarkable improvement on barrier properties of IP-GONRs / TPU nanocomposite films is achieved. This is attributed to excellent impermeable property of IP-GONRs,their full exfoliation,and parallel in the TPU matrix and the strong interfacial adhesion between IP-GONRs and TPU matrix. The improved properties of the composite film could lead to potential applications in food packaging and lightweight mobile gas storage containers.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2016年第1期151-157,共7页
Polymer Materials Science & Engineering
基金
福建省高校产学合作科技重大关键资助项目(2012H6008)
福州市科技计划资助项目(2013-G-92)
关键词
功能氧化石墨烯纳米带
热塑性聚氨酯
复合材料薄膜
氧气透过率
阻隔性能
functionalized graphene oxide nanoribbons
thermoplastic polyurethane
composite film
oxygen transmission rate
barrier properties
