Functional textiles have attracted a lot attention since their various functions (e.g. waterproof breathable property, self-cleaning characteristic, antipollution) and wide applications, such as water treatment, sports and leisure fabrics, tents, protective clothing ect. A novel method is presented for the construction of a hierarchical microstructure/nanostructure via the chemical self-assembly of poly(N-isopropyl acrylamide-co-acrylic acid) particles on polyester fibers. The textile of the particle-bound fibers possessed smart wettability and an oil-absorbing capacity. The wettability was dependent on the initial contact angle and spreading time of water droplets on the particle-bound textile, which could be controlled with the content of acrylic acid inserted into the polymer chains. The wettability of the particle-bound textile was responsive to the pH value. Furthermore, the surface roughness of the fibers binding P(NIPAM-AA) hybrid particles is drastically improved, and the contact angle of textile binding hybrid particles reaches 110°, which can keep fixed for a long time. Meanwhile, the composite textile exhibits a superoleophilic performance, which provides a possibility of the in-depth regulation of the surface properties of textile. Finally, a rapid separation of the oil/water mixture is realized on the composite textile binding hybrid particles. The textiles binding responsive polymer/hybrid particles will have important applications in controllable breathable fabrics and oil-water separation.

Controlling hydrophilic/hydrophobic property of PET textile via the self-assembly of responsive particles

ACS Spring Meeting 2021

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