等离子体接枝反应对涤纶织物亲水性能的影响

Ar plasma initiated grafting reaction for hydrophilicity of PET fabrics

采用氩气辉光放电等离子体处理经聚乙二醇预处理的涤纶织物,以提高织物的亲水性能,采用静电探针测定等离子体处理过程中的电子温度和电子密度,用液态水分管理系统(MMT)测试改性织物的润湿性能。探讨接枝聚合单体及氩等离子体处理条件对涤纶织物亲水性能的影响,分析了涤纶织物亲水改性的反应机制,并讨论了改性效果的耐久性。结果表明,经5%聚乙二醇1000处理后采用氩等离子体处理能显著改善涤纶织物的吸湿性能。氩等离子体最佳处理条件为:功率50 W,压强30 Pa,时间3 min。处理后织物表面润湿时间为2.9 s,水分扩散速度为7.2 mm/s,织物表面接触角为0°,经多次洗涤显示出良好的耐久性。

Polyester（PET） fabric which had been subjected to the pretreatment with polyethylene glycol was treated by glow discharge plasma in low-pressure argon.The electron temperature and electron density of the plasma were determined by electrostatic probe.The hydrophilicity of treated polyester fabric was measured by moisture management test（MMT）.The influence of grafting monomer and argon plasma conditions on the hydrophilicity of treated polyester fabric was analyzed.The reaction mechanism and durability of hydrophilicity of the treated PET were discussed.The results showed that the hydrophilicity of polyester fabrics was improved evidently with argon plasma treatment after dipping 5% polyethylene glycol 1000.The optimum plasma treatment conditions were defined as follows： discharge power 50 W,pressure 30 Pa and plasma exposure time 3 minutes.The wetting time of the treated fabric was 2.9 s,diffusion rate of water was 7.2 mm /s and contact angle was 0° on the surface of polyester fabric.The fabric showed good durability in hydrophilicity after many times of washing.