In order to improve the physical and chemical stability of super-slip( SLIPS) fabrics, the self-adhesive core-shell polymer microspheres were prepared by emulsion polymerization using vinyl-modified silica nanoparticles ( V-SiO2 ) as the raw material. After the dipping and baking process, it was bonded to the surface of cotton fabric to obtain a rough substrate. The amino silicone oil was then grafted onto rough substrate surface by amino-epoxy graft reaction and amino-hydroxyl hydrogen bond to obtain a SLIPS-cotton fabric ( SLIPS-Cotton ) . The properties of liquid repellent, antifouling, physical and chemical stability of SLIPS-Cotton were studied. The results shown that the rough structure of the SLIPS in SLIPS-Cotton is composed of microspheres with a particle size of 321. 3 nm, and the contact angle of water droplets on the surface is 138°. The sliding angles of water and dimethyl sulfoxide on the surface of the SLIPS - Cotton are 7° and 15° respectively. After contacting with tomato sauce and coffee contaminants, the amount of adhesion on the surface of SLIPS-Cotton is significantly reduced. After water splash washing within 200 mL, the sliding angles of water and dimethyl sulfoxide on SLIPS-Cotton surface are less than 12° and 26°, respectively. The contact angles of droplets on the surface of the SLIPS-Cotton are stable between 42° and 49° at pH 3-9.
关键词
超滑棉织物/乳液聚合/聚合物微球/核壳结构/疏液防污/防污性能
Key words
super-slip cotton fabric/emulsion polymerization/polymer microsphere/core-shell structure/liquid repellent and antifouling/antifouling performance
万方数据