RT info:eu-repo/semantics/article
T1 Microcellular polymeric foams based on 1‐vinyl‐2‐pyrrolidone and butyl‐acrylate with tuned thermal conductivity
A1 Reglero Ruiz, José Antonio
A1 Vallejos Calzada, Saúl
A1 Sanjuán Cortázar, Ana María
A1 García García, Félix Clemente
A1 Múgica, Mikel .
A1 Rodríguez Pérez, Miguel Ángel .
A1 García Pérez, José Miguel
K1 foams
K1 porous materials
K1 radical polymerization
K1 thermal properties
K1 Química orgánica
K1 Chemistry, Organic
AB Microcellular polymers have been produced by ScCO2 foaming, based on 1-vinyl-2-pyrrolidone (VP) and butyl-acrylate(BA). Three different copolymers were prepared, varying the compositions of VP and BA, following a simple radical polymerizationprocess using an UV initiator. The samples a good foaming behavior and also excellent flexibility and handle ability, with expansionratios between 1.53 and 1.72, and cell sizes in the microcellular range (below 5 mm). However, it was observed that the gas distributionand, consequently, the cellular structure inside the polymer foams was highly dependent on the VP and BA proportions, leadingto very different thermal conductivity values, even for similar volume gas fraction values. These results were related to the copolymernanostructuration, which seems to have an influence in the final pore structure, thus opening the possibility of designing microcellularfoams with similar macroscopic characteristics but different thermal conductivity values
PB Wiley
SN 0021-8995
YR 2018
FD 2018-02
LK http://hdl.handle.net/10259/4928
UL http://hdl.handle.net/10259/4928
LA eng
NO FEDER and both the SpanishMinisterio de Economıa y Competitividad (MAT2014–54137-R)and the Consejerıa de Educacion-Junta de Castilla y Leon(BU061U16)
DS Repositorio Institucional de la Universidad de Burgos
RD 24-nov-2024