Anisotropic swelling and mechanical behavior of composite bacterial cellulose–poly(acrylamide or acrylamide–sodium acrylate) hydrogels

Buyanov, A. L.; Gofman, I. V.; Revel'skaya, L. G.; Хрипунов, А. К.; Ткаченко, А. С.

doi:10.1016/j.jmbbm.2009.06.001

Cited by 93 publications

(63 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This may explain an observed complexity of the relationship between nanocellulose content and absorbency (Larsson et al 2011). Anisotropic swelling was observed by Buyanov et al (2010) in nanocellulose-filled hydrogel structures that had been pre-compressed during their formation. Spagnol et al (2012a) reported that although nanocellulose inclusion at relatively high levels decreased absorbent capacity, it also resulted in greater pore size.…”

Section: Effects On Swellingmentioning

confidence: 97%

“…Although underivatized cellulose is not nearly as hydrophilic as CMC, several investigators have prepared hydrogels by extensive grafting of other monomers onto cellulose, generally employing suitable organic solvent systems (Yoshinobu et al 1992;Wu et al 2008;Chang et al 2009b;Kim and Mun 2009;Buyanov et al 2010;Feng and et al 2010a;Anirudhan et al 2011;Shu and Zhao 2011;Wu et al 2012). Generally, water absorbency values in the range of 60 to 1800 have been reported for such hydrogels, though Kim and Mun (2009) reported a high value of 2500 g/g.…”

Section: Cellulose-synthetic Graft Copolymer Hydrogelsmentioning

confidence: 99%

“…Effects of the presence of nanocellulose on the swelling of SAP composites has been considered in several studies (Buyanov et al 2010;Larsson et al 2010Larsson et al , 2011Laftah et al 2011;Spagnol et al 2012a). In the review article by Laftah et al (2011), the findings of such studies were summarized by stating that nanofibers can either increase or decrease absorbency in different cases.…”

Section: Effects On Swellingmentioning

confidence: 99%

See 2 more Smart Citations

Enhanced Absorbent Products Incorporating Cellulose and Its Derivatives: A Review

Hubbe¹,

Ayoub²,

Daystar³

et al. 2013

BioResources

View full text Add to dashboard Cite

Cellulose and some cellulose derivatives can play vital roles in the enhancement of the performance of absorbent products. Cellulose itself, in the form of cellulosic fibers or nano-fibers, can provide structure, bulk, water-holding capacity, and channeling of fluids over a wide dimensional range. Likewise, cellulose derivatives such as carboxymethylcellulose (CMC) have been widely studied as components in superabsorbent polymer (SAP) formulations. The present review focuses on strategies and mechanisms in which inclusion of cellulose -in its various formscan enhance either the capacity or the rate of aqueous fluid absorption in various potential applications.

show abstract

Section: Effects On Swellingmentioning

confidence: 97%

Section: Cellulose-synthetic Graft Copolymer Hydrogelsmentioning

confidence: 99%

Section: Effects On Swellingmentioning

confidence: 99%

See 1 more Smart Citation

Enhanced Absorbent Products Incorporating Cellulose and Its Derivatives: A Review

Hubbe¹,

Ayoub²,

Daystar³

et al. 2013

BioResources

View full text Add to dashboard Cite

show abstract

“…Recently, their applications in biomedical science attracted an increasing attention, such as artificial blood vessels [5,6], regeneration of damaged peripheral nerves [7], implant tissues for ear-cartilage replacement [8], etc. Their microstructure with high porosity demonstrates a great potential for polymerization of chemical monomers and regeneration of tissues; as a result, BC-based composites [9,10] and scaffolding for tissue engineering [11] developed rapidly in recent years.…”

Section: Introductionmentioning

confidence: 99%

Effect of microstructure on anomalous strain-rate-dependent behaviour of bacterial cellulose hydrogel

Gao

Shi

Lau

et al. 2016

Materials Science and Engineering: C

View full text Add to dashboard Cite

This study is focused on anomalous strain-rate-dependent behaviour of bacterial cellulose (BC) hydrogel that can be strain-rate insensitive, hardening, softening, or strain-rate insensitive in various ranges of strain rate. BC hydrogel consists of randomly distributed nanofibres and a large content of free water; thanks to its ideal biocompatibility, it is suitable for biomedical applications. Motivated by its potential applications in complex loading conditions of body environment, its time-dependent behaviour was studied by means of inaqua uniaxial tension tests at constant temperature of 37°C at various strain rates ranging from 0.0001 s -1 to 0.3 s -1 . Experimental results reflect anomalous strain-rate-dependent behaviour that was not documented before. Micro-morphological observations allowed identification of deformation mechanisms at low and high strain rates in relation to microstructural changes. Unlike strain-rate softening behaviours in other materials, reorientation of nanofibres and kinematics of free-water flow dominate the softening behaviour of BC hydrogel at high strain rates.

show abstract

“…This hydrogel has porous structure, can expand and have greater water absorption capacity and elasticity [5,6]. For designing any polymeric material to have its application in biomedical fields, it's necessary to improve its functional properties.…”

Section: Introductionmentioning

confidence: 99%

Preparation of bacterial cellulose based hydrogels and their viscoelastic behavior

Shah

Vyroubal

Fei

et al. 2015

AIP Conference Proceedings

View full text Add to dashboard Cite

Abstract. Bacterial cellulose (BC) based hydrogels have been prepared in blended with carboxymethylcellulose and polyvinyl pyrrolidone by using heat treatment. The properties of BC-CMC and BC-PVP hydrogels were compared with pure BC, CMC and PVP hydrogels. These hydrogels were investigated by measuring their structural, morphological and viscoelastic properties. Through the morphological images, alignment of the porous flake like structures could be seen clearly within the inter-polymeric network of the hydrogels. Also, the detail structure analysis of the polymers blended during the hydrogel formation confirms their interactions with each other were studied. Further, the viscoelastic behavior of all the hydrogels in terms of elastic and viscous property was studied. It is observed that at 1% strain, including CMC and PVP hydrogels, all the BC based hydrogels exhibited the linear trend throughout. Also the elastic nature of the material remains high compared to viscous nature. Moreover, the changes could be noticed in case of blended polymer based hydrogels. The values of complex viscosity (η*) decreases with increase in angular frequency within the range of ω = 0.1-100 rad.s -1 .

show abstract

Anisotropic swelling and mechanical behavior of composite bacterial cellulose–poly(acrylamide or acrylamide–sodium acrylate) hydrogels

Cited by 93 publications

References 25 publications

Enhanced Absorbent Products Incorporating Cellulose and Its Derivatives: A Review

Enhanced Absorbent Products Incorporating Cellulose and Its Derivatives: A Review

Effect of microstructure on anomalous strain-rate-dependent behaviour of bacterial cellulose hydrogel

Preparation of bacterial cellulose based hydrogels and their viscoelastic behavior

Contact Info

Product

Resources

About