TY - JOUR
T1 - Fabrication of a functional microgel-based hybrid nanofluid and its application in CO 2 gas adsorption
AU - Yao, Dongdong
AU - Li, Ting
AU - Zheng, Yaping
AU - Zhang, Zhilin
N1 - Publisher Copyright:
© 2018
PY - 2019/3
Y1 - 2019/3
N2 - In this study, a novel hybrid nanofluid, composed of a composite core of poly(2-dimethylamino ethyl methacrylate) microgel and silica (PDMAEMA/SiO 2 ) and a shell of polyetheramine (M2070), was fabricated via a combination of inversed emulsion polymerization, biomimetic silicification and grafting onto approach. Firstly, PDMAEMA microgel of ca. 300-nm diameter with good dispersity was prepared in water/cyclohexane system. Subsequently, walnut kernel-structured and solid spherical PDMAEMA/SiO 2 composites were fabricated using swollen and contractive PDMAEMA microgel as catalytic template, respectively. Then 3-(2, 3-epoxypropoxy) propyl trimethoxysilane (KH560) modified M2070 was grafted on PDMAEMA/SiO 2 composites to obtain two kinds of solvent-free PDMAEMA/SiO 2 @M2070 hybrid nanofluids with core@shell structure. Finally, the CO 2 gas adsorption performance of these nanofluids was investigated under different CO 2 pressure (0.5–4.5 MPa) at 25 °C. The results indicated that nanofluid with walnut kernel-structured core showed more excellent CO 2 adsorption capacity than solid spherical one. Moreover, it still displayed good stability over ten adsorption-desorption cycles.
AB - In this study, a novel hybrid nanofluid, composed of a composite core of poly(2-dimethylamino ethyl methacrylate) microgel and silica (PDMAEMA/SiO 2 ) and a shell of polyetheramine (M2070), was fabricated via a combination of inversed emulsion polymerization, biomimetic silicification and grafting onto approach. Firstly, PDMAEMA microgel of ca. 300-nm diameter with good dispersity was prepared in water/cyclohexane system. Subsequently, walnut kernel-structured and solid spherical PDMAEMA/SiO 2 composites were fabricated using swollen and contractive PDMAEMA microgel as catalytic template, respectively. Then 3-(2, 3-epoxypropoxy) propyl trimethoxysilane (KH560) modified M2070 was grafted on PDMAEMA/SiO 2 composites to obtain two kinds of solvent-free PDMAEMA/SiO 2 @M2070 hybrid nanofluids with core@shell structure. Finally, the CO 2 gas adsorption performance of these nanofluids was investigated under different CO 2 pressure (0.5–4.5 MPa) at 25 °C. The results indicated that nanofluid with walnut kernel-structured core showed more excellent CO 2 adsorption capacity than solid spherical one. Moreover, it still displayed good stability over ten adsorption-desorption cycles.
KW - Biomimetic silicification
KW - CO gas adsorption
KW - PDMAEMA microgel
KW - Solvent-free hybrid nanofluid
UR - http://www.scopus.com/inward/record.url?scp=85060109031&partnerID=8YFLogxK
U2 - 10.1016/j.reactfunctpolym.2018.12.025
DO - 10.1016/j.reactfunctpolym.2018.12.025
M3 - 文章
AN - SCOPUS:85060109031
SN - 1381-5148
VL - 136
SP - 131
EP - 137
JO - Reactive and Functional Polymers
JF - Reactive and Functional Polymers
ER -