摘要
近些年来,柔性可穿戴的智能纺织品受到了国内外学者的广泛关注。作为智能纺织品的核心材料--导电织物,是目前的研究热点。通过一种简单、有效的方法,采用氧化石墨烯分散液对棉织物进行染色,然后用水合肼还原,得到了导电性能优异的纯棉织物,实现了染色-功能一浴化整理。通过分析不同染色浓度、p H值、染色时间对纯棉织物染色K/S值(表示织物的染色深度,K表示被测物体的吸收系数,S表示被测物体的散射系数)的影响,得出最佳的染色工艺为染色浓度10%、染色时间90 min、p H 10。此外,对最佳工艺下染色后纯棉织物的耐水洗、耐摩擦以及耐弯折电学性能和抗紫外线性能进行了表征,结果表明,织物在水洗50次、摩擦1 000次、弯折1 000次后,仍具有优异的耐水洗-电学稳定性、耐摩擦-电学稳定性与耐弯折-电学稳定性;石墨烯染色的纯棉织物具有非常优异的抗紫外性能,紫外线防护系数UPF值高达143. 23,远远超过ASTM D6603-2012标准。
In recent years,flexible wearable smart textiles have attracted wide attention from scholars.As the core material of smart textiles,conductive fabrics are the research hotspots at present.A simple and effective method was used to dye onto cotton fabrics with graphene oxide dispersion solution and then reduced with hydrazine hydrate,which obtained dyed cotton fabrics with excellent electrical conductivity,finally realized dyeing-functional one-bath finishing.The effects of dyeing concentration,pH value and dyeing time on K/S value of cotton fabric were studied and analyzed.The results showed that the optimum dyeing process was as dyeing concentration 10%,dyeing time 90 min and pH 10.Moreover,the washing-,friction-,bending-electrical stability,and ultraviolet resistance of dyed cotton fabrics under the optimum process were characterized.After washing for 50 times,rubbing for 1000 times,bending for 1000 times,the fabrics still have excellent washing-electrical stability,friction-electrical stability and bendingelectrical stability,respectively.In addition,the graphene-based cotton fabric had excellent ultraviolet resistance,the UPF value of dyed cotton fabric was143.23,much higher than that of raw cotton fabric specimen(UPF was 19.04),which increased by 7.5 times.The ultraviolet transmittance percentage of UVA and UVB were 0.88%and 0.66%,respectively,which have decreased rapidly compared with the raw cotton fabric specimen(8.46%and 4.25%),far exceeding the excellent protection UPF grade in the American standard ASTM D6603—2012(40+).
作者
周杰
高普
马辉
罗秋兰
ZHOU Jie;GAO Pu;MA Hui;LUO Qiu-lan(College of Material and Textile Engineering,Jiaxing 314001,China;Nanhu College,Jiaxing University,Jiaxing 314001,China;Huafang Co.,Ltd.,Binzhou 256617,China)
出处
《化学试剂》
CAS
北大核心
2019年第11期1119-1123,共5页
Chemical Reagents
基金
国家自然科学基金资助项目(51703079)
浙江省教育厅一般科研项目(Y201738106)
嘉兴学院南湖学院重要课题项目(N41472001-49)
关键词
石墨烯
纯棉织物
染色效果
导电性能
抗紫外线性能
graphene
pure cotton fabric
dyeing effect
electrical conductivity
ultraviolet resistance
