中文摘要：

采用石墨烯纳米片（GNs）作为功能整理剂，水溶性聚氨酯（WPU）为黏合剂，通过传统的轧-烘-焙工艺对棉织物进行改性整理，研究了改性棉织物的防紫外、导电和导热性能。采用扫描电子显微镜（SEM）和傅里叶红外光谱（FTIR）分析改性棉织物的表观形态和内部结构；采用紫外线防护系数（㈣评估防紫外线性能，采用两探针法测定织物表面导电性能并得到相应的IV曲线。结果表明，经石墨烯改性后的棉织物具有超强的紫外线防护性，其导电性和导热性能也分别有相应的提高。当石墨烯涂覆量为240mg／m2时，其UPF值达到253．9，远高于未处理棉织物（UPF=8．19）；改性棉织物的表面电阻率由未处理时的10^7Ω·m降到10^-1Ω·m。

英文摘要：

Graphene nanosheets （GNs） nanocomposites are used to functionalize the surface of cotton fabric at low content assisted with waterborne polyurethane （WPU） via pad-dry-cure method. The mor- phology and structure of the as-obtained modified cotton fabrics are characterized with SEM and FTIR respectively. Ultraviolet protection factor （UPF） is applied to assess UV blocking properties of the sam- ples and the surface electrical resistance of coated fabric is carried out by two point-probe technique. The results show that the modified cotton fabric displays ultrastrong protection against UV radiation with UPF value up to 253.9（UPF value of control cotton fabrics of 8.19） with graphene coated weight of 240 mg/m2. The surface electrical resistance of coated fabric is decreased from 10^7Ω·m of control cot- ton fabrics to 10^-1Ω· m of treated fabrics.