Speaker
Mr
Vincent Luo
(Shanghai Institute of Applied Physics, Chinese Academy of Sciences, China)
Description
Our research groups is devoting to develop the fabric modification by radiation methods, especially by radiation induced graft polymerization of functional monomers or together with nanoparticles.
The first research routine is based on radiation induced graft polymerization of the vinyl monomers. As a first step, by grafting the functional acrylate or methacrylate we can prepare superhydrophobic cotton fabrics which are durable for laundering and friction1-3. Furthermore, by grafting and then amination or amidoxination we can prepare the metal ion exchangeable fabric for gold adsorption and reduction4 or uranium extraction from seawater5-7.
The second research routine is based on radiation induced co-graft polymerization of the vinyl monomers and the inorganic nanoparticles, for example, functionalized TiO2 nanoparticles8 or graphene oxide9.
Very recently, we combined the radiation induced graft polymerization with the radiation induced reduction, which resulted in an antibacterial cotton fabrics grafted with pomegranate-shaped polymer wrapped in silver nanoparticle aggregations10. This pomegranate-shaped silver NPAs functionalized cotton fabric exhibits outstanding antibacterial activities and also excellent laundering durability, where it can inactivate higher than 90% of both E. coli and S. aureus even after 50 accelerated laundering cycles, which is equivalent to 250 commercial or domestic laundering cycles.
The most advantage of the radiation methods in fabric modification is lying in the formation of the covalent bonds between the cellulous macromolecules and the graft chains or together with the nanoparticles, which is the key point for the laundering durability and permanent functionalization.
| Country/Organization invited to participate | China |
|---|
Primary author
Mr
Vincent Luo
(Shanghai Institute of Applied Physics, Chinese Academy of Sciences, China)
