摘要
用环氧氯丙烷（EPI）对氧化石墨烯（GO）进行共价键改性,制备了环氧改性氧化石墨烯（EPGO）,再将EPGO共混水性聚氨酯（WPU）制得了含有不同质量分数EPGO（以水性聚氨酯有效质量计）的EPGO/WPU复合膜,通过FTIR、XRD、TEM表征了EPGO的结构和形态,并测试了成膜拉伸性能、耐磨性能。结果表明：EPGO的添加可以明显提高水性聚氨酯膜的拉伸强度,当添加0.8%（质量分数）的EPGO时,复合膜的拉伸强度达到12.9MPa,较空白膜提高了67.5%,杨氏模量提高了36.4%,且复合膜的耐磨性显著提高,表明EPGO的添加对水性聚氨酯膜有增强作用。
Epoxy modified grapheme oxide（EPGO） was prepared via covalent bonding between epichlorohydrin（EPI） and graphene oxide（GO） and was characterized by FTIR, XRD and TEM. The obtained EPGO mixed with waterborne polyurethane（WPU） emulsion to produce EPGO/WPU composite films containing different mass fraction of EPGO（based on the mass of effective components of WPU emulsion）. The tensile properties and abrasion resistances of these films were tested. The results revealed that the addition of EPGO could obviously increase the tensile strength of the modified WPU film. When the addition amount of EPGO was 0.8%, the tensile strength of the composite film reached 12.9 MPa, which was an improvement of 67.5% compared with that of the blank film（without EPGO）. The Young＇s modulus increased by 36.4%, and the abrasion resistance improved remarkably. All these indicated that EPGO addition had an enhancement effect on the waterborne polyurethane film.
作者
冯见艳
王学川
陈秀婷
王岩松
FENG Jian-yan;WANG Xue-chuan;CHEN Xiu-ting;WANG Yan-song(College of Bioresources Chemical and Materials Engineering,Shaanxi University of Science and Technology,Xi＇an 710021,Shaanxi,China;National Demonstration Center for Experimental Light Chemistry Engineering Education,Shaanxi University of Science ＆ Technology,Xi＇an 710021,Shaanxi,China)
出处
《精细化工》
EI
CAS
CSCD
北大核心
2018年第10期1653-1658,共6页
Fine Chemicals
基金
“十三五”重点研发计划项目(2017YFB0308500)
国家自然科学基金项目(21776169)~~
关键词
氧化石墨烯
环氧改性
复合膜
水性聚氨酯
功能材料
graphene oxide
modification of epoxy
composite film
waterbome polyurethane
functional materials
