TY - JOUR
T1 - Synthesis, structure and properties of Fe 3O 4 nanofluids with liquid-like behavior
AU - Tan, Yumo
AU - Zhang, Aibo
AU - Zheng, Yaping
AU - Lan, Lan
AU - Chen, Wei
PY - 2011/12
Y1 - 2011/12
N2 - Fe 3O 4 nanoparticles were modified with ionic surfactant (CH 3O) 3 Si(CH 2) 3N +(CH 3) (C 10H 20) 2Cl -, and then the chloridion was replaced by the anion C 9H 19C 6H 4 (OCH 2CH 2) 20 O(CH 2) 3SO 3 - through an ion-exchange process. As a result, an electrical double-layer structure was formed on the surface of Fe 3O 4 nanoparticles. The results showed that the surface layer has been successfully grafted on Fe 3O 4 nanoparticles surface and the modified Fe 3O 4 nanoparticles were well dispersed. The loss shear modulus G″ of Fe 3O 4 nanofluids was significantly greater than the storage shear modulus G′ at room temperature, which confirms the typical fluid-behavior. Great stability and good flowability are well maintained after standing for a year at room temperature.
AB - Fe 3O 4 nanoparticles were modified with ionic surfactant (CH 3O) 3 Si(CH 2) 3N +(CH 3) (C 10H 20) 2Cl -, and then the chloridion was replaced by the anion C 9H 19C 6H 4 (OCH 2CH 2) 20 O(CH 2) 3SO 3 - through an ion-exchange process. As a result, an electrical double-layer structure was formed on the surface of Fe 3O 4 nanoparticles. The results showed that the surface layer has been successfully grafted on Fe 3O 4 nanoparticles surface and the modified Fe 3O 4 nanoparticles were well dispersed. The loss shear modulus G″ of Fe 3O 4 nanofluids was significantly greater than the storage shear modulus G′ at room temperature, which confirms the typical fluid-behavior. Great stability and good flowability are well maintained after standing for a year at room temperature.
KW - Inorganic non-metallic materials
KW - Magnetic nanoparticles
KW - Solid-liquid transformation
KW - Solvent-free nanofluids
KW - Surface modification
UR - http://www.scopus.com/inward/record.url?scp=84862942988&partnerID=8YFLogxK
M3 - 文章
AN - SCOPUS:84862942988
SN - 1005-3093
VL - 25
SP - 561
EP - 565
JO - Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research
JF - Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research
IS - 6
ER -