Tubeless siphon of a 0.5 wt% 4 million g/mol PEO solution with and without nanoparticles


 

(a) Elapsed time: 8 sec 16 sec 21 sec 23 sec .

(b) Elapsed time: 8 sec 16 sec 27 sec 28 sec .

 

Tubeless siphon of a 0.5 wt% 4 million g/mol PEO solution with and without nanoparticles; the initial volume and the piston speed are the same in the two cases. (a) Without particles, about 20-ml liquid is left in the beaker after the siphon. (b) The PEO solution is laden with 2.34 wt % 10 20 nm silica particles. The tubeless siphon is much stronger and a complete cleaning is achieved.