2019
DOI: 10.3390/polym11101593
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Complex Aerogels Generated from Nano-Polysaccharides and Its Derivatives for Oil–Water Separation

Abstract: The complex aerogel generated from nano-polysaccharides, chitin nanocrystals (ChiNC) and TEMPO-oxidized cellulose nanofibers (TCNF), and its derivative cationic guar gum (CGG) is successfully prepared via a facile freeze-drying method with glutaraldehyde (GA) as cross-linkers. The complexation of ChiNC, TCNF, and CGG is shown to be helpful in creating a porous structure in the three-dimensional aerogel, which creates within the aerogel with large pore volume and excellent compressive properties. The ChiNC/TCNF… Show more

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Cited by 35 publications
(12 citation statements)
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“…However, in composite aerogels, the new peak at 1470cm − 1 formed after cross-linking reaction, corresponding to the amide bond formation between formaldehyde and chitosan. In composite aerogels, the sharp peak at ~ 1690cm − 1 is evidence of cross-linked aerogels corresponding to aldehyde group formation (Yagoub et al 2019). Formaldehyde addition to aerogels develops structural stability and enhances the mechanical strength of nal aerogels by providing strengthening units within the micro-orientation of aerogels.…”
Section: Characterization Of Physical Properties At Room Temperaturementioning
confidence: 99%
“…However, in composite aerogels, the new peak at 1470cm − 1 formed after cross-linking reaction, corresponding to the amide bond formation between formaldehyde and chitosan. In composite aerogels, the sharp peak at ~ 1690cm − 1 is evidence of cross-linked aerogels corresponding to aldehyde group formation (Yagoub et al 2019). Formaldehyde addition to aerogels develops structural stability and enhances the mechanical strength of nal aerogels by providing strengthening units within the micro-orientation of aerogels.…”
Section: Characterization Of Physical Properties At Room Temperaturementioning
confidence: 99%
“…Silane based modifiers, such as trimethylchlorosilane (TMCS) [195], hexamethyldisilazane (HMDS) [195], methyltrimethoxysilane (MTMS) [196,197], hexadecyltrimethoxylan (HDTMS) [198] and methyltrichlorosilane (MTCS) [199] have been known as popular cellulose modifiers for various applications. For example, HDTMS-modified cellulose foams absorbed up to 79 g/g of motor oil, 162 of sunflower oil and retained good performance after 20 sorption cycles.…”
Section: Functionalization As a Tool To Enhance The Properties Of Ligmentioning
confidence: 99%
“…Aerogels are synthetic materials characterized by fine internal void spaces, open-pore geometry, and useful properties including low density, high porosity, high specific surface, and low thermal conductivity [1][2][3]. These materials have broad application potential in thermal insulation [4,5], oil absorption [6], catalysis [7], electrode materials [8], CO 2 remove [9], tissue engineering [10], energy storage [11], adsorption of heavy metal ions [12], and as drug carriers [13]. The unique microstructure of aerogels is associated with low solids content and a fragile gel skeleton that cannot withstand external impact, and typical inorganic oxide aerogels with a pearl-necklace-like gel skeleton are particularly vulnerable [14,15].…”
Section: Introductionmentioning
confidence: 99%