Multi-scale cellulose based new bio-aerogel composites with thermal super-insulating and tunable mechanical properties

Carbohydrate Polymers
Bastien SeantierHamid Kaddami

Abstract

Bio-composite aerogels based on bleached cellulose fibers (BCF) and cellulose nanoparticles having various morphological and physico-chemical characteristics are prepared by a freeze-drying technique and characterized. The various composite aerogels obtained were compared to a BCF aerogel used as the reference. Severe changes in the material morphology were observed by SEM and AFM due to a variation of the cellulose nanoparticle properties such as the aspect ratio, the crystalline index and the surface charge density. BCF fibers form a 3D network and they are surrounded by the cellulose nanoparticle thin films inducing a significant reduction of the size of the pores in comparison with a neat BCF based aerogel. BET analyses confirm the appearance of a new organization structure with pores of nanometric sizes. As a consequence, a decrease of the thermal conductivities is observed from 28mWm(-1)K(-1) (BCF aerogel) to 23mWm(-1)K(-1) (bio-composite aerogel), which is below the air conductivity (25mWm(-1)K(-1)). This improvement of the insulation properties for composite materials is more pronounced for aerogels based on cellulose nanoparticles having a low crystalline index and high surface charge (NFC-2h). The significant improvem...Continue Reading

References

Sep 10, 2003·Biomacromolecules·Denilson da Silva PerezMichel R Vignon
Mar 15, 2005·Biomacromolecules·Stephanie Beck-CandanedoDerek G Gray
Oct 28, 2006·Journal of Colloid and Interface Science·A Venkateswara RaoHiroshi Hirashima
May 8, 2007·Advanced Drug Delivery Reviews·Hyun Jung Chung, Tae Gwan Park
Oct 21, 2011·Tissue Engineering. Part a·Wenchuan ChenHockin H K Xu
Oct 2, 2012·The Journal of Physical Chemistry. B·Craig A HallMichael E Ries
Feb 13, 2013·Carbohydrate Polymers·Cyrielle Rudaz, Tatiana Budtova
May 23, 2014·ACS Applied Materials & Interfaces·Amal KadimiMustapha Raihane
Feb 14, 2015·ACS Applied Materials & Interfaces·Mei-Chun LiYiqiang Wu
Feb 14, 2013·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Hua JinOlli Ikkala

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Citations

Jan 10, 2018·Angewandte Chemie·Shanyu ZhaoGustav Nyström
Mar 6, 2018·Advanced Materials·Eero KontturiOlli Ikkala
Sep 25, 2019·Polymers·Myung-Joon JeongKyu-Young Kang
May 18, 2020·Pharmaceutics·Loredana Elena NitaAurica P Chiriac
Apr 11, 2019·Polymers·Lin-Yu LongYu-Zhong Wang
Aug 8, 2020·Advanced Materials·Varvara Apostolopoulou-KalkavouraLennart Bergström
Jan 14, 2021·Carbohydrate Polymers·Yan SunHuining Xiao
Jan 24, 2021·Carbohydrate Polymers·Marcos MarianoJuliana S Bernardes
Mar 13, 2021·ACS Nano·Sandeep AhankariHanieh Kargarzadeh
May 29, 2021·Carbohydrate Polymers·Fangxin Zou, Tatiana Budtova
Aug 8, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Paola FrancoIolanda De Marco
Aug 29, 2021·Polymers·Siegfried FürtauerHatem Abushammala
Sep 23, 2021·Scientific Reports·Varvara Apostolopoulou-KalkavouraLennart Bergström

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