西北师范大学学报(自然科学版)
西北師範大學學報(自然科學版)
서북사범대학학보(자연과학판)
JOURNAL OF NORTHWEST NORMAL UNIVERSITY(NATURAL SCIENCE)
2013年
6期
63-67
,共5页
马国富%李佳佳%彭辉%王辉%雷自强
馬國富%李佳佳%彭輝%王輝%雷自彊
마국부%리가가%팽휘%왕휘%뢰자강
氧化石墨烯(GO)%聚乙烯醇PVA%超声分散法%流延成膜法%层状结构
氧化石墨烯(GO)%聚乙烯醇PVA%超聲分散法%流延成膜法%層狀結構
양화석묵희(GO)%취을희순PVA%초성분산법%류연성막법%층상결구
graphene oxide (GO )%poly (vinyl alcohol )%ultrasonic dispersion method%film-casting method%layered structure
采用改进的 Hummers法制备了氧化石墨烯(GO),利用超声分散法和流延成膜法制备了具有层状结构的聚乙烯醇/氧化石墨烯(PVA/GO)纳米复合膜。采用红外光谱(FTIR)、透射电镜(TEM)、扫描电镜(SEM)和X射线衍射(XRD)对纳米复合膜的结构进行了表征,同时测试了复合膜的热性能、力学性能和耐水性能。结果表明, GO片层可以均匀地分散在PVA基体中, GO的加入不会影响PVA的结构, GO与PVA通过强烈相互作用,提高了复合膜的热稳定性、耐水性和力学性能。
採用改進的 Hummers法製備瞭氧化石墨烯(GO),利用超聲分散法和流延成膜法製備瞭具有層狀結構的聚乙烯醇/氧化石墨烯(PVA/GO)納米複閤膜。採用紅外光譜(FTIR)、透射電鏡(TEM)、掃描電鏡(SEM)和X射線衍射(XRD)對納米複閤膜的結構進行瞭錶徵,同時測試瞭複閤膜的熱性能、力學性能和耐水性能。結果錶明, GO片層可以均勻地分散在PVA基體中, GO的加入不會影響PVA的結構, GO與PVA通過彊烈相互作用,提高瞭複閤膜的熱穩定性、耐水性和力學性能。
채용개진적 Hummers법제비료양화석묵희(GO),이용초성분산법화류연성막법제비료구유층상결구적취을희순/양화석묵희(PVA/GO)납미복합막。채용홍외광보(FTIR)、투사전경(TEM)、소묘전경(SEM)화X사선연사(XRD)대납미복합막적결구진행료표정,동시측시료복합막적열성능、역학성능화내수성능。결과표명, GO편층가이균균지분산재PVA기체중, GO적가입불회영향PVA적결구, GO여PVA통과강렬상호작용,제고료복합막적열은정성、내수성화역학성능。
The graphene oxide is prepared by modified Hummers method , and the polyvinyl alcohol/graphene oxide(PVA/GO) nanocomposite films with a layered structure simply is prepared by ultrasonic dispersion and film-casting method . T he microstructures of the nanocomposite films are investigated using FTIR ,TEM ,SEM and XRD . The thermal stability ,mechanical properties and water-resistance of the nanocomposite films are also tested . The experimental results indicate that GO sheets are well dispersed in the PVA matrix , and crystalline structure of PVA is not affected by adding GO . Thermal stability , water-resistance and mechanical properties of the nanocomposite films are improved by strong interaction between PVA and GO .