TY - GEN
T1 - The effects of SiO2/PEG suspension on mechanical properties of rigid polyurethane foams
AU - Feng, Xin Ya
AU - Li, Shu Kui
AU - Wang, Yan
AU - Wang, Ying Chun
AU - Liu, Jin Xu
PY - 2013
Y1 - 2013
N2 - In order to improve the mechanical properties of the polyurethane foams, the silica nanoparticles were added into the foams in the form of SiO2/PEG suspension during the preparation process. The microstructure, density, static mechanical properties and dynamic mechanical properties of the foams were investigated. Microstructure analysis shows that the silica nanoparticles were uniformly dispersed in the foams, however when the amounts of SiO2/PEG suspension is more than 2.5 wt.%, cracks in the skelecton were observed in foams. With the increased SiO2/PEG suspension, the density, static compression strength and dynamic compression strength show an increasing tendency. When the SiO2/PEG suspension is 2.5 wt.%, the density of the foams increased 4.17 %, while the static compression strength increased 26 %. When the SiO2/PEG suspension is 10 wt.%, the density of the foams increased 16 %, while the dynamic compression strength increased 60.5 %. The corresponding mechanism was discussed in the paper.
AB - In order to improve the mechanical properties of the polyurethane foams, the silica nanoparticles were added into the foams in the form of SiO2/PEG suspension during the preparation process. The microstructure, density, static mechanical properties and dynamic mechanical properties of the foams were investigated. Microstructure analysis shows that the silica nanoparticles were uniformly dispersed in the foams, however when the amounts of SiO2/PEG suspension is more than 2.5 wt.%, cracks in the skelecton were observed in foams. With the increased SiO2/PEG suspension, the density, static compression strength and dynamic compression strength show an increasing tendency. When the SiO2/PEG suspension is 2.5 wt.%, the density of the foams increased 4.17 %, while the static compression strength increased 26 %. When the SiO2/PEG suspension is 10 wt.%, the density of the foams increased 16 %, while the dynamic compression strength increased 60.5 %. The corresponding mechanism was discussed in the paper.
KW - Mechanical properties
KW - Polyurethane foams
KW - SiO/PEG suspension
UR - http://www.scopus.com/inward/record.url?scp=84886786723&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMR.815.246
DO - 10.4028/www.scientific.net/AMR.815.246
M3 - Conference contribution
AN - SCOPUS:84886786723
SN - 9783037858707
T3 - Advanced Materials Research
SP - 246
EP - 250
BT - Progress in Materials Science and Engineering
T2 - 2013 International Conference on Material Science and Engineering, ICMSE 2013
Y2 - 4 October 2013 through 6 October 2013
ER -