The effects of SiO2/PEG suspension on mechanical properties of rigid polyurethane foams

Xin Ya Feng, Shu Kui Li, Yan Wang, Ying Chun Wang, Jin Xu Liu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Citations (Scopus)

Abstract

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.

Original languageEnglish
Title of host publicationProgress in Materials Science and Engineering
Subtitle of host publicationICMSE 2013
Pages246-250
Number of pages5
DOIs
Publication statusPublished - 2013
Event2013 International Conference on Material Science and Engineering, ICMSE 2013 - Guilin, Guangxi, China
Duration: 4 Oct 20136 Oct 2013

Publication series

NameAdvanced Materials Research
Volume815
ISSN (Print)1022-6680

Conference

Conference2013 International Conference on Material Science and Engineering, ICMSE 2013
Country/TerritoryChina
CityGuilin, Guangxi
Period4/10/136/10/13

Keywords

  • Mechanical properties
  • Polyurethane foams
  • SiO/PEG suspension

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