棉织物的聚氨酯改性纳米TiO_2功能整理

采用聚氨酯改性纳米TiO2对棉织物进行抗紫外线整理,研究了整理织物的SEM、抗紫外线性能、拉伸性能、折皱回复角和透气性。整理织物用活性染料进行染色,以考察纳米颗粒与纤维结合的稳定性。结果表明,纳米TiO2与纤维以共价键结合稳定性较好,纳米颗粒不易流失。整理后织物的抗紫外线性能和折皱回复角增加,但拉伸性能和透气性降低。

Surface Graft Copolymerization of Acrylic Acid onto Corona Treated Cotton Fabric

Acrylic acid was grafted onto the surface of cotton fabric after being short time treated by corona-discharge inair in the presence of initiator.The means of gas-phaseSO2 derivatization was used along with ESCA to deter-mine corona-discharge-induced-hydroperoxidegroups on the surface.The content of hydroperoxideshows a maxmium value at 15 sec.of corona-dischargetime.Effect of corona treatment time and various con-centration initlator on graft yield was studied.The addit-ion of initiator increases the graft yield.Acceleratedgraft with an increase in the concentration of Mohr’s saltshows that peroxide groups on the corona treated cottonfabric initiate graft copolymerization.

活性染料对纤维素织物染色的最新要求探讨

本文阐述了当今活性染料对纤维素织物染色的主要要求以及各项要求的确定标准。