Facile fabrication of porous open-cell polymer structures from sacrificial “natural templates” and composite resins
In this paper, we investigate several types of “natural or bio sourced templates” (sugar, salt, bone, coral, PLA 3D-printed scaffolds) for a the simple elaboration of macro porous thermoplastic or thermosetting polymers, especially based on resins commonly used in composites manufacturing. Open-cell...
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Veröffentlicht in: | Journal of porous materials 2020-08, Vol.27 (4), p.1013-1025 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | In this paper, we investigate several types of “natural or bio sourced templates” (sugar, salt, bone, coral, PLA 3D-printed scaffolds) for a the simple elaboration of macro porous thermoplastic or thermosetting polymers, especially based on resins commonly used in composites manufacturing. Open-cell, macro porous polymer foams are obtained from resin impregnation of the template. The process consists of 3 simple steps: (a) impregnation (infiltration/infusion) of the template, (b) polymerization of the resin, (c) removal of template, mainly by water. We compared several resins and showed that a low viscosity and a sufficient wettability enable fast impregnation of templates, where impregnation times are |
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ISSN: | 1380-2224 1573-4854 |
DOI: | 10.1007/s10934-020-00878-0 |