Abstract

Mimicking natural structures allows the exploitation of proven design concepts for advanced material solutions. Here, our inspiration comes from the anisotropic closed cell structure of wood. The bubbles in our fiber reinforced foam are elongated using temperature dependent viscosity of methylcellulose and constricted drying. The oriented structures lead to high yield stress in the primary direction; 64 times larger than compared to the cross direction. The closed cells of the foam also result in excellent thermal insulation. The proposed novel foam manufacturing process is trivial to up-scale from the laboratory trial scale towards production volumes on industrial scales.

Details

Title
Scalable method for bio-based solid foams that mimic wood
Author
Reichler Mikael 1 ; Rabensteiner, Samuel 1 ; Törnblom Ludwig 1 ; Coffeng Sebastian 1 ; Viitanen Leevi 1 ; Jannuzzi Luisa 1 ; Mäkinen Tero 1 ; Mac Intyre Jonatan R 1 ; Koivisto Juha 1 ; Puisto Antti 1 ; Alava, Mikko J 1 

 Aalto University, Department of Applied Physics, Aalto, Espoo, Finland (GRID:grid.5373.2) (ISNI:0000000108389418) 
Publication year
2021
Publication date
2021
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2612224277
Copyright
© The Author(s) 2021. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.