摘要
利用分子间氢键和电荷相互作用力,通过层层喷涂组装技术,将带负电的氧化石墨烯(GO)与带正电的支化聚乙烯亚胺(bPEI)交替沉积到羊毛织物表面,制备(GO/bPEI)_(n)涂层,再喷涂上一层聚磷酸铵(APP),获得(GO/bPEI)_(n)-APP修饰的阻燃抗菌羊毛织物。通过阻燃性能测试、热失重分析、导热性能测试和抗菌性能分析证明:相比于纯羊毛织物,通过层层喷涂组装技术获得的(GO/bPEI)_(n)-APP修饰的羊毛织物的阻燃和抗菌性能显著提高。(GO/bPEI)_(7)-APP修饰的羊毛织物的极限氧指数为30%,对金黄色葡萄糖球菌的抗菌率47%。实验进一步证实,将氧化石墨烯还原成还原氧化石墨烯(rGO)后,(rGO/bPEI)_(7)-APP修饰的羊毛织物由于表面吸附更多的APP,所以其极限氧指数高达35%,对金黄色葡萄糖球菌的抗菌率也得到提升(64%)。
In the present work,flame-retardant and antibacterial(GO/bPEI)_(n)-APP wool fabric are fabricated by depositing alternately negatively charged GO and positively charged branched polyethylenimine(bPEI)and spraying a layer of ammonium polyphosphate(APP)on the wool surface.The results of flame retardant property analysis,thermogravimetric analysis,thermal conductivity test and antibacterial property analysis show that the flame retardant and antibacterial properties of the wool fabric modified by(GO/bPEI)_(n)-APP were significantly improved.The limit oxygen index of(GO/bPEI)_(7)-APP modified wool fabric was 30%,and the antibacterial rate against S.aureus was 47%.After reducing GO to rGO,the amount of APP adsorbed on the surface increased.The limit oxygen index of(rGO/bPEI)_(7)-APP modified wool fabric reached 35%,and the antibacterial rate against S.aureus was up to 64%.
作者
郭永梅
郭海玲
GUO Yong-mei;GUO Hai-ling(Fujian Key Laboratory of Novel Functional Textile Fibers and Materials,Minjiang University,Fuzhou 350108,China;College of Chemical Engineering,China University of Petroleum,Qingdao 266580,China)
出处
《高分子通报》
CAS
CSCD
北大核心
2022年第1期56-64,共9页
Polymer Bulletin
基金
福建省科技厅自然科学基金(基金号2019J01770)
福建省新型功能性纺织纤维及材料重点实验室开放基金(基金号FKLTFM1805)
闽江学院引进人才科技预研项目(项目号MJY18009)。
关键词
氧化石墨烯
聚乙烯亚胺
聚磷酸铵
阻燃
抗菌
羊毛织物
Graphene oxide
Polyethyleneimine
Ammonium polyphosphate
Flame retardant
Antibacterial
Wool fabric
