摘要
Ultraviolet(UV)radiation can cause degradation or aging of many polymers and shorten the working-life of their products.Thus,UV protective covers are required in various occasions.Textiles with the UV-shielding function possess unique properties compared with those covers in board or film shapes.TiO_2 nanoparticles(NPs),which were reported to have superior UV blocking function,can be used to produce UV protective covers in combination with fabric.However,efficient and environmentally friendly immobilization of TiO_2 Nps onto the fabrics is challenging.Polydopamine(PDA),a biomimetic synthetic polymer,has attracted great attentions recently due to its superior affinity to various materials and facile application procedure.Hence,in this research,the surface of nylon fabrics was modified by PDA to immobilizeTiO_2 NPs.Themodificationconditionswere systematically optimized.The immobilization of the NPs was confirmed by Fourier transform infrared spectrometer(FTIR)and scanning electron microscope(SEM).The functionalized nylon fabrics were proved to exhibit improved UV protection properties even after washing.This work provides a new and versatile surface modification technique for textiles.
Ultraviolet （UV） radiation can cause degradation or aging of many polymers and shorten the working-life of their products. Thus, UV protective rovers are required in various occasions. Textiles with the UV-shidding function possess unique properties compared with those covers in board or film shapes. TiO2 nanopartlclcs （ NPs ）, which were reported to have superior UV blocking function, can be used to produce UV protective rovers in combination with fabric. However, efficient and environmentally friendly immobilization of TiO2 Nps onto the fabrics is challenging. Polydopemine （PDA）, a biomimetic synthetic polymer, has attracted great attentions recently due to its superior affinity to various materials and facile application procedure. Hence, in this research, the surface of nylon fabrics was modified by PDA to immobilize TiO2 NPs. The modification conditions were systematically optimized. The immobilization of the NPs was confirmed by Fourier transform infrared spectrometer （FTIR） and scanning electron microscope （SEM）. The functionalized nylon fabrics were proved to exhibit improved UV protection properties even after washing. This work provides a new and versatile surface modification technique for textiles.
基金
National Natural Science Foundation of China(No.51503031)
Pujiang Project from Shanghai Science and Technology Committee,China(No.15PJ1400300)
Scientific Research Foundation for the Returned Overseas Scholars from the Ministry of Education,China(No.15B10127)
Fundamental Research Funds for the Central Universities,China(No.2232015D3-02)
