Materials and Manufacturing Processes · 1995 · 65 citations · 9 references
Natural SciencesMaterials EngineeringMaterials ScienceCeramic MaterialsCeramicsFunctional MaterialsPolymer FoamsPorous CeramicsPowder ProcessingSinteringCeramic FoamsCeramic PowdersFlame RetardantsFoaming AgentsFoamsPolyurethane Foam InsulationPolyurethane FoamsPorous Ceramic Materials
The effect of ascending additions of fine TiO2 powder on the porosity of a hand mixed polyurethane foam system was studied. Voidage was sustained in the 95% region up to 20 vol% powder addition based on the polymer. Loss of powder from the windows occurred below this level and a reticulate structure was obtained on sintering. Above 20 vol%, the windows remained mainly closed on sintering. The implications of the results for polymer foam opacifiers and flame retardants and for ceramic foam fabrication are considered. © 1995, Taylor & Francis Group, LLC. All rights reserved.
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