RT info:eu-repo/semantics/article
T1 Advanced nanocellular foams: Perspectives on the current knowledge and challenges
A1 Cuadra Rodríguez, Daniel
A1 Barroso Solares, Suset
A1 Pinto Sanz, Javier
K1 Nanocellular polymers
K1 Nanocellular foams
K1 23 Química
K1 22 Física
AB Nanocellular polymers (i.e., cellular polymers with cells and walls in the nanometricrange) were first produced in the early 2000s, with the works of Yokoyama et al. beingthe main precedents in this field, producing nanocellular structures by using supercriticalcarbon dioxide. However, it was not until a decade later that this research field started togrow significantly, attracting several international research groups in the quest to obtaincellular polymers with cells in the nanocellular range. From 2010 to 2014, the basis ofbulk nanocellular foam production was established, and the CO2 gas dissolution foamingtechnique rapidly proved to be the most suitable production route for such materials(details and theoretical basis of this technique can be found elsewhere). Continuoustechnical advances (e.g., higher saturation pressures, lower saturation temperatures, fasterpressure drop rates) and diverse nucleating agents, from inorganic nanoparticles to blockcopolymers, provided a broad collection of cellular polymers with submicrometric andnanometric cells. Although quite diverse polymers allowed the achievement of submicrometriccells, amorphous polymers such as polyetherimide (PEI), polystyrene (PS), and,notably, poly (methyl methacrylate) (PMMA) provided the best nanocellular structures,with cell sizes even below 100 nm and significant density reductions.
PB MDPI
SN 2079-4991
YR 2021
FD 2021
LK https://uvadoc.uva.es/handle/10324/49131
UL https://uvadoc.uva.es/handle/10324/49131
LA eng
NO Nanomaterials, 2021, vol. 11, n. 3, 621
NO Producción Científica
DS UVaDOC
RD 27-dic-2024