Preparation and characterization of resin-derived carbon foams containing hollow microspheres

Bin Wang, He Jun Li, Yun Yu Li, Man Hong Hu, Jing Xian Xu, Sheng Cao

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

2 Scopus citations

Abstract

Resin-derived carbon foams with closed hollow spherical structure were prepared from mixtures of hollow phenolic microspheres and phenolic resin, followed by curing and carbonization. The resultant carbon foam had a bulk density of 0.45 g·cm-3. Effects of hollow microsphere on the on the compressive property and thermal conductivity of carbon foams were investigated. The results revealed that the hollow microspheres played an important role in improving compressive fracture toughness and lowering the thermal conductivity of carbon foams. The compressive fracture characteristics of carbon foam exhibited gradient brittle fracture, and the compressive strength was 10.93 MPa. The thermal conductivity of the carbon foam was 0.907 W·m-1·K-1 at room temperature, which was lowered by 49.67% in comparison with phenolic-based vitreous carbon.

Original languageEnglish
Title of host publicationMaterials and Processes Technologies V
PublisherTrans Tech Publications Ltd
Pages318-323
Number of pages6
ISBN (Print)9783038351214
DOIs
StatePublished - 2014

Publication series

NameAdvanced Materials Research
Volume941-944
ISSN (Print)1022-6680
ISSN (Electronic)1662-8985

Keywords

  • Carbon foam
  • Hollow microsphere
  • Mechanical property
  • Phenolic resin
  • Thermal conductivity

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