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SURFACTANTS FOR INCORPORATING SILICA AEROGEL IN POLYURETHANE FOAMS
SURFACTANTS FOR INCORPORATING SILICA AEROGEL IN POLYURETHANE FOAMS
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机译:在聚氨酯泡沫中掺入二氧化硅气凝胶的表面活性剂
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摘要
Polyurethane foams prepared using polysiloxane/polyoxyalkylene surfactants, preferably blended with a viscosity modifying agent, particularly in combination with particulate silica, especially silica aerogel, exhibit improved thermal insulating capacity, as measured by K-factor, and improved closed cell content, without increasing the density of the polyurethane foam.
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