Abstract: To expand the application of polyester fabrics in the field of electronic textiles, it is necessary to endow them with conductivity. Therefore, in this study, the conductive coating was prepared by using PEDOT:PSS (Poly (3,4-ethylenedioxythiophene): polystyrene sulfonate), EG (ethylene glycol) and PVA (polyvinyl alcohol), and the conductive coating was evenly coated on the polyester fabric by "coating‒drying" method to prepare the PEDOT:PSS/PVA-coated conductive fabric. Firstly, the optimal range of coating times was determined to be 8, 10, 12 times by single factor experiment to ensure the uniformity of PEDOT:PSS/PVA-coated conductive fabrics. On this basis, the orthogonal experiment of three factors and three levels was designed, and the optimal combination parameters of EG addition amount, PVA solution addition amount and coating times were obtained. The PEDOT:PSS/PVA-coated conductive fabric prepared under the optimal combination parameters showed good electrical conductivity with a resistance of 4.48 Ω and a volume resistivity of 0.09 Ω ·cm. In terms of laundering durability, mechanical properties and biocompatibility, the test results show that the coated conductive fabric has certain laundering durability, and the resistivity after 10 washes is 1.35 Ω ·cm, which is because PVA makes the conductive coating not easy to fall off. The fast and slow elastic recovery retention rates of the coated conductive fabric are 59.77%‒70.34% and 63.26%‒74.43%, respectively. The average breaking strength and elongation at break increase by 59.73 N (6.15%) and 40.4 N (5.78%), respectively, and the improvement of tensile properties is attributed to the synergistic tensile properties of PVA. Additionally, after four hours of contact with the skin, the coated conductive fabric does not cause redness, swelling, or allergic reactions, demonstrating good biocompatibility.
In summary, PEDOT:PSS/PVA-coated conductive fabrics not only perform well in terms of electrical conductivity, but also show excellent properties in terms of laundering durability, mechanical properties and biocompatibility, and have broad application prospects in the field of electronic textiles.

Key words: PEDOT:PSS/PVA, conductive fabric, polyester fabric, coating?drying, laundering durability, biocompatibility

摘要： 为拓展涤纶织物在电子纺织品领域中的应用，须赋予其导电性，将PEDOT:PSS、EG和PVA混合制备导电涂料，以涤纶织物为基底，通过“涂覆-烘干”的方法制备PEDOT:PSS/PVA涂层导电织物。首先，通过单因素实验探讨涂层导电织物具有良好均匀性的涂覆次数区间，由此确定影响涂层导电织物导电性的3因素3水平，设计正交实验，得到导电性最优组合参数，并测试涂层导电织物的耐洗涤性、力学性能、生物相容性。结果表明：在EG添加量7%、PVA溶液添加量11%、涂覆次数12次的最优组合参数下，该涂层导电织物的电阻为4.48 Ω，体积电阻率为0.09 Ω·cm；洗涤10次后电阻率为1.35 Ω·cm，耐洗涤性较好；急弹性回复性和缓弹性回复性保留率分别为59.77%~70.34%、63.26%~74.43%；经纬向平均断裂强力分别增加59.73 N和40.40 N，断裂伸长率分别增加6.15%和5.78%；与皮肤接触4 h，无红肿过敏等现象，显示较好的生物相容性。

关键词: PEDOT:PSS/PVA, 导电织物, 涤纶织物, 涂覆-烘干, 耐洗涤性, 生物相容性