Properties of rigid polyurethane foams filled with milled carbon fibers

The effect of milled carbon fibers of two types (differing in length) on the properties of rigid polyurethane foams in the density range from 50 to 90 kg/m3 is investigated. The coefficient of thermal expansion and properties of the foams in tension and compression as functions of fiber content in them are determined. It is found that the long fibers are more efficient in improving the properties of the foams in their rise direction. The elongation at break of the foams decreases significantly with increasing fiber content.

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Correspondence to V. Yakushin.

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Translated from Mekhanika Kompozitnykh Materialov, Vol. 46, No. 6, pp. 983-996, November-December, 2010.

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Yakushin, V., Stirna, U., Bel’kova, L. et al. Properties of rigid polyurethane foams filled with milled carbon fibers. Mech Compos Mater 46, 679–688 (2011).

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  • rigid polyurethane foam
  • milled carbon fibers
  • mechanical properties