http://repository.iitr.ac.in/handle/123456789/14739| Title: | Flame retardant and thermally insulating clay based aerogel facilitated by cellulose nanofibers |
| Authors: | Gupta P. Verma C. Maji, Pradip K. |
| Published in: | Journal of Supercritical Fluids |
| Abstract: | In this paper, flame retardancy and thermal insulating properties of sepiolite clay and cellulose nanofibers based aerogel has been discussed. Due to the fragile characteristic of sepiolite based aerogel, cellulose nanofiber has been introduced into the clay to make it a composite aerogel. The prepared hybrid aerogel has been modified with a hydrophobic precursor i.e. Methyltrimethoxysilane (MTMS). Formation of aerogel has been confirmed by Field emission scanning electron microscope (FESEM) analysis and Brunauer–Emmett–Teller (BET) surface area measurement. The prepared specimens have shown the typical properties of aerogels like low density (11.5 kg/m3 to 32.5 kg/m3), high porosity (99.2–98.3%) with good dimensional stability. Vertical burning test along with V-0 performance, horizontal burning test and flame penetration has confirmed its thermal shielding and flame retardancy. Thermal conductivity results also show good thermal insulation properties of prepared composite aerogel. © 2019 Elsevier B.V. |
| Citation: | Journal of Supercritical Fluids (2019), 152(): - |
| URI: | https://doi.org/10.1016/j.supflu.2019.05.005 http://repository.iitr.ac.in/handle/123456789/14739 |
| Issue Date: | 2019 |
| Publisher: | Elsevier B.V. |
| Keywords: | Cellulose nanofibers Flame retardant Sepiolite Thermal conductivity |
| ISSN: | 8968446 |
| Author Scopus IDs: | 57209615371 57209294016 56249287900 |
| Author Affiliations: | Gupta, P., Advanced Materials Research Laboratory, Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, 247001, India Verma, C., Advanced Materials Research Laboratory, Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, 247001, India Maji, P.K., Advanced Materials Research Laboratory, Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, Saharanpur, 247001, India |
| Funding Details: | This research project has been supported by the Science and Engineering Research Board, Government of India, India under the Early Career Research Award (Grant No.: ECR/2016/000621/CS ). Dr. Madhab Bera and Mr. Nishant Jain are thanked for their help during the flame retardant test. The authors are very thankful to Mrs. Saswati Maji for language correction in the manuscript. The authors, Ms. Pragya Gupta and Ms. Chhavi Verma gratefully acknowledge the Ministry of Human Resource Development, Government of India, India for financial support. |
| Corresponding Author: | Maji, P.K.; Advanced Materials Research Laboratory, Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Saharanpur Campus, India; email: pradip.fpt@iitr.ac.in |
| Appears in Collections: | Journal Publications [PE] |
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