浅色聚酯纤维基抗静电涂层织物的制备及其性能研究

Preparation and Properties of Light Color Coated Antistatic Polyester Fiber-based Fabrics

以浅色导电钛白(ATO@TiO2)为功能填料,水性聚氨酯(WPU)为涂层剂,制备浅色聚酯纤维基抗静电涂层织物,研究了导电钛白的形貌、用量以及涂层厚度对涂层织物性能的影响。分别通过扫描电镜、傅里叶红外光谱、织物方块电阻测试仪对涂层的微观形貌与结构、表面电阻进行测试表征。结果表明:在涂层中纤维状的导电钛白比粒子型的填料易于桥接形成通路。其中5~10μm长的导电钛白性能最佳,在7.5%添加量下,涂层厚度为50μm时,经测试涂层织物表面电阻<106Ω,完全达到抗静电要求。此外,涂层织物白度值高,涂层耐久性可靠,经多次水洗处理、热处理和日晒处理后依旧保持良好的电荷溢散能力。

A novel light-color coated polyester fiber-based fabrics with excellent conductivity was prepared,in which ATO@TiO2 and waterborne polyurethane were used as conductive filler and binder respectively.The effects of conductive titanium dioxide morphology,dosage,coatings film thickness,baking temperature and time on the properties of coated fabrics were investigated.The micro morphology,structure and surface resistance of the coatings were characterized by SEM,FT-IR and fabric block resistance tester respectively.The results showed that the fibrous conductive titanium dioxide was easier to bridge to form a conductive pathway in the coatings film to present better antistatic properties,compared with the particle-shaped conductive fillers.Especially,conductive ATO@TiO2 with length of 5-10μm presents the best performance,the surface resistivity of coated fabrics was less than 106Ω·cm,when the thickness of the coatings was 50μm and 7.5%conductive ATO@TiO2 added,which fully met the requirements of antistatic performance.In addition,the coated fabrics provided high whiteness value and reliable durability.After several times of washing,heat treatment and sun-exposure treatment,it still showed good charge overflow ability.