Effects of Different Graphite Particle Sizes on the Properties of Rigid Polyurethane Foam

Abstract:

By Using Two Different Kinds of the Graphite Particles 80 Mesh and 325 Mesh on the Whole Water-blown Rigid Polyurethane Foam, its Properties Will Be Modified and Improved. the Result Shows that both of them Can Improve the Compressive Strength of Matrix when the Graphite Content Is Low. the 80 Mesh Graphite Destroys the Pore Structure of the Matrix, Resulting in the Increase of the Thermal Conductivity. in Addition, the Tensile Properties Are Reduced. in Contrast, the 325 Mesh Graphite Reduces the Thermal Conductivity of the Matrix, and the Tensile Properties Get Improved. Meanwhile, the Thermal Stability Enhancement of 325 Mesh Graphite Is Better than 80 Mesh Graphite.

• Periodical: Advanced Materials Research (Volumes 538-541)
• Pages: 2425-2428
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.538-541.2425
• Online since: June 2012
• Authors: Li Guang Xiao, Guan Jie Li, Cun You Yan
• Keywords: Graphite, Mechanical Property, Rigid Polyurethane Foam (RPUF), Thermal Conductivity (TC), Thermal Stability

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