Preparation and properties of phenolic foam modified with boric acid and organosiloxane by supercritical CO2 technology
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DOI: 10.1002/app.55649
Abstract: In this study, a silica boron modified phenolic resin foam (SiBPF) is prepared in a reactor under specific pressure and temperature and using supercritical CO2 (scCO2) as a physical foaming agent, to improve phenolic foam… read more here.
Keywords: temperature; preparation properties; partially curing; phenolic foam ... See more keywords
Mechanical property of lignin-modified phenolic foam enhanced by nano-SiO2 via a novel method
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DOI: 10.1007/s11696-017-0317-2
Abstract: Recently, the application of nano-SiO2 in composite materials has received wide attention. In this work, a new method was explored to prepare nano-SiO2 using phenol instead of other organic alcohols. The obtained nano-SiO2 was characterized… read more here.
Keywords: property lignin; nano sio2; sio2; mechanical property ... See more keywords
The Preparation and Properties of Terephthalyl-Alcohol-Modified Phenolic Foam with High Heat Aging Resistance
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DOI: 10.3390/polym11081267
Abstract: In this experiment, terephthalyl alcohol was used as a modifier to modify phenol under both acidic and alkaline conditions to obtain modified phenols with different molecular structures. Subsequently, the modified phenols reacted with paraformaldehyde in… read more here.
Keywords: heat aging; modified phenolic; rate; phenolic foam ... See more keywords
Preparation of a Ceramifiable Phenolic Foam and Its Ceramization Behavior
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DOI: 10.3390/polym14081591
Abstract: Ceramifiable phenolic foam (GC-PF) with a low ceramization temperature has been prepared by incorporation of low melting point glass frits (LMG) containing B2O3 and Na2O as main components into a phenolic resin matrix. Fourier transform… read more here.
Keywords: preparation ceramifiable; phenolic foam; foam ceramization; foam ... See more keywords
Phenolic Foam Preparation Using Hydrofluoroolefin Blowing Agents and the Toughening Effect of Polyethylene Glycol
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DOI: 10.3390/polym16182558
Abstract: In this work, a new class of fourth-generation, zero ozone depletion potential, hydrofluoroolefin-based blowing agents were used to prepare phenolic foam. While hydrofluoroolefin blowing agents have been used previously to prepare polyurethane foams, few studies… read more here.
Keywords: blowing agents; foam preparation; hydrofluoroolefin; hydrofluoroolefin blowing ... See more keywords