Preparation of nano-sized hydrophilic aluminum fins coating materials for air conditioner
(1. Department of Chemistry and Chemical Engineering, Southeast University,
Nanjing 210096, China;
2. Analytical & Testing Center, Southeast University, Nanjing 210096, China)
Nanjing 210096, China;
2. Analytical & Testing Center, Southeast University, Nanjing 210096, China)
Abstract: Semicontinuous seeded emulsion copolymerization of acrylic acid, acrylamide and divinylbenzene was carried out at 80℃ with ammonium persulphate as the initiator and the polyether with comb configuration as the emulsifier to prepare approximately mono-dispersed nano-sized polymer particles with average diameter 90nm. The particles were used to combine with special polyether and de-ionized water was added to obtain nano-sized hydrophilic aluminum fins coating materials with solid content of 10%. The aluminum fins were coated with the materials to get the film showing self-assembly properties in some degree. The obtained hydrophilic fins have contact angles ＜5° with de-ionized water, minimum value 0°, after 4 cycles of wet and dry, contact angles ＜10° with de-ionized water.
Key words: nano-sized polymer; hydrophilic fins; polyether