OALib Journal期刊
氧化石墨烯纳米带-碳纳米管/TPU复合材料薄膜的制备及表征
DOI: 10.11777/j.issn1000-3304.2015.14455
Keywords: 氧化石墨烯纳米带 ,碳纳米管 ,多维度纳米材料复合体 ,TPU复合材料薄膜 ,阻隔性能
Abstract:
将不同维度纳米填料同时复合,采用纵向氧化切割MWCNTs法制得不同含量比的氧化石墨烯纳米带-碳纳米管(GONRs-CNTs)2种维度纳米材料复合体,随后将上述填料加入到TPU基体中制得GONRs-CNTs/TPU复合材料薄膜.采用FTIR、XRD、TG、XPS、TEM和FE-SEM研究了不同反应条件下所得GONRs-CNTs复合体的结构及性能,并结合复合材料薄膜的氧气透过率和拉伸测试以及表面形貌观察,研究了GONRs与CNTs的协同作用、二者的含量比对TPU复合材料薄膜阻隔和力学性能的影响.研究表明,GONRs与CNTs的协同效应明显优于MWCNTs,同时当所加GONRs-CNTs复合体中GONRs与CNTs的含量比约为6733时,GONRs-CNTs/TPU复合材料薄膜的氧气透过率和拉伸强度相比纯TPU薄膜分别降低51.3%和提高29.3%,阻隔性能和力学性能均得到明显改善.
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