Next Article in Journal
Preparation and Properties of Toluene-Diisocyanate-Trimer-Modified Epoxy Resin
Next Article in Special Issue
Preparation of Hierarchical Porous Carbon Aerogels by Microwave Assisted Sol-Gel Process for Supercapacitors
Previous Article in Journal
Effects of pH on Nanofibrillation of TEMPO-Oxidized Paper Mulberry Bast Fibers
Previous Article in Special Issue
Facile Synthesis of Methylsilsesquioxane Aerogels with Uniform Mesopores by Microwave Drying
Article Menu

Export Article

Open AccessArticle
Polymers 2019, 11(3), 415; https://doi.org/10.3390/polym11030415

Effects of Sodium Montmorillonite on the Preparation and Properties of Cellulose Aerogels

1
School of Materials and Mechanical Engineering, Beijing Technology& Business University, Beijing 100048, China
2
Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology and Business University, Beijing 100048, China
3
Center for Degradable and Flame-Retardant Polymeric Materials, College of Chemistry, Sichuan University, Chengdu 610064, China
*
Authors to whom correspondence should be addressed.
Received: 28 December 2018 / Revised: 17 February 2019 / Accepted: 20 February 2019 / Published: 4 March 2019
(This article belongs to the Special Issue Polymer and Composite Aerogels)
Full-Text   |   PDF [2476 KB, uploaded 4 March 2019]   |  
  |   Review Reports

Abstract

In this study, first, a green and efficient NaOH/urea aqueous solution system was used to dissolve cellulose. Second, the resulting solution was mixed with sodium montmorillonite. Third, a cellulose/montmorillonite aerogel with a three-dimensional porous structure was prepared via a sol-gel process, solvent exchange and freeze-drying. The viscoelastic analysis results showed that the addition of montmorillonite accelerated the sol-gel process in the cellulose solution. During this process, montmorillonite adhered to the cellulose substrate surface via hydrogen bonding and then became embedded in the pore structure of the cellulose aerogel. As a result, the pore diameter of the aerogel decreased and the specific surface area of the aerogel increased. Furthermore, the addition of montmorillonite increased the compressive modulus and density of the cellulose aerogel and reduced volume shrinkage during the preparation process. In addition, the oil/water adsorption capacities of cellulose aerogels and cellulose/montmorillon aerogels were investigated. View Full-Text
Keywords: cellulose; montmorillonite; composite aerogel cellulose; montmorillonite; composite aerogel
Figures

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Long, L.-Y.; Li, F.-F.; Weng, Y.-X.; Wang, Y.-Z. Effects of Sodium Montmorillonite on the Preparation and Properties of Cellulose Aerogels. Polymers 2019, 11, 415.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Polymers EISSN 2073-4360 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top