All-cellulose nanocomposites by surface selective dissolution of bacterial cellulose

Soykeabkaew, Nattakan; Sian, Chandeep; Gea, Saharman; Nishino, Takashi; Peijs, Ton

doi:10.1007/s10570-009-9285-1

Cited by 179 publications

(134 citation statements)

References 55 publications

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“…Therefore, stress was adequately transferred between the matrix and the reinforcement, and this resulted in superior mechanical properties. 3,[6][7][8] In the case of ACNC, after 30 to 120 min of dissolution, more crystallites turned into non-crystalline cellulose. That is, the amount of reinforcement decreased; hence, the residual undissolved nanofibers were not sufficient to reinforce the composite.…”

Section: Resultsmentioning

confidence: 99%

“…The mechanical properties of such composites can exceed those of glass-fiber composites. [3][4][5][6][7][8][9][10][11][12] Different solvents have been used to make ACC and ACNC, including N,N-dimethylacetamide/lithium chloride (DMAc/LiCl), 3,4,6,7 ionic liquid 8 and sodium hydroxide (NaOH)/urea. 9 DMAc/LiCl is especially popular because of its ability to dissolve cellulose under moderate conditions.…”

Section: Introductionmentioning

confidence: 99%

“…9 DMAc/LiCl is especially popular because of its ability to dissolve cellulose under moderate conditions. Moreover, different cellulosic micro-and nanofibers have been used to make ACC and ACNC, including ramie fibers, 3,10 microcrystalline cellulose, 4 filter paper, 6,8 bacterial cellulose, 7 commercial microfibrillated cellulose, 8,12 cellulose nanowhisker 9 and beech pulp. 11 In this study, cellulose nanofiber produced by grinding was used to make ACNC.…”

Section: Introductionmentioning

confidence: 99%

“…This method is in contrast to previous studies that made ACNC from bacterial cellulose and cellulose nanowhiskers. 7,9 Cellulose nanofibers produced by grinding are fundamentally different from cellulose nanowhiskers as used by Qi et al 9 in terms of their entanglement, morphology, production process and yield. 13,14 In particular, the difference in entanglement can be attributed to the difference between the aspect ratios of cellulose nanowhiskers and of cellulose nanofibers produced by grinding.…”

Section: Introductionmentioning

confidence: 99%

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All-cellulose composite and nanocomposite made from partially dissolved micro- and nanofibers of canola straw

Yousefi

Faezipour

Nishino

et al. 2011

Polym J

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All-cellulose composite (ACC) and nanocomposite (ACNC) were, respectively, made from microfiber and grinding-based nanofiber of canola straw by using a partial dissolution method with the solvent N,N-dimethylacetamide/lithium chloride (DMAc/LiCl). The dissolution times were 5, 10, 20, 30, 60 and 120 mins. The resultant composites were compared with neat micro-and nanofiber sheets. The average diameter of microfiber was 26 lm, which was downsized to 32 nm after grinding. The grinding process is a simple, cheap and fast downsizing method that could reduce fiber diameter by almost three orders of magnitude. The tensile strength of the nanofiber sheet was 11 times higher than that of the microfiber sheet. As dissolution time increased, the amount of non-crystalline matrix in the ACC and ACNC increased, and the apparent crystallinity decreased. The ACC had a tensile strength of 59 MPa when the dissolution time was 120 min, whereas the ACNC approached a maximum tensile strength of 164 MPa after a short dissolution time (10 min). Fiber pull-out was observed in the tensile-broken surfaces of the micro-and nanofiber sheets, and fibers tended to break when the dissolution time was long.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

All-cellulose composite and nanocomposite made from partially dissolved micro- and nanofibers of canola straw

Yousefi

Faezipour

Nishino

et al. 2011

Polym J

Self Cite

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“…It is also possible to mix different types of wood to other materials when the lignocellulosic materials do not show adequate quality by themselves, such as: vine pruning residues 12 ; poppy husk 13 ; coir 5 ; coffee stem 14 ; maize cob 15 ; coffee husk 16 ; rice hulls 17 and sugarcane bagasse 11 . The use of natural fibers as reinforcement has aroused great interest in developing countries because of their low cost, availability, energy saving, renewable source, non-toxic and also with regard to environmental issues [18][19][20] .…”

Section: Introductionmentioning

confidence: 99%

Coir and Sisal Fibers as Fillers in the Production of Eucalyptus Medium Density Particleboards - MDP

et al. 2016

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The aim of this study was to evaluate the potential use of sisal and coir fibers in combination with Eucalyptus particles for the production of particleboard. The particleboards were produced in three layers. The first and third layers (face) were made with small Eucalyptus particles. The second layer (core) was made with big Eucalyptus particles in combination with coir or sisal fibers. The particleboards were prepared with the substitution on Eucalyptus wood for sisal and coir fibers in the particleboards core, in doses of 0, 10, and 20%, relative to the total mass of particles. The particleboards were characterized by mechanical, physical and thermal properties. The results were not satisfactory for particleboards with sisal. However, for coir particleboards the physical-mechanical properties were very similar to those particleboards produced only with Eucalyptus. This work demonstrates the potential use of the coir that is commonly disposed in landfills on the Brazilian beaches.

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All‐Cellulose Composites

Staiger

Huber

2012

Wiley Encyclopedia of Composites

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Composite materials comprising a mixture of shellac resin as the matrix and cellulose as the reinforcement were developed. The influence of the reinforcement content and the concentration of additives on the mechanical performance and processing were investigated. A high content of cellulose and low concentrations of ethanol and polyethylene glycol produced biocomposites with high stress resistance and a high Young's modulus, whereas a low content of cellulose and a high concentration of additives gave samples a low Young's modulus and high elasticity. Two types of cellulose-based reinforcements with different polarity, namely, mechanically refined wood pulp and cellulose acetate butyrate particles, were compared. The efficiency of the composite over the two model reinforcements, i.e., hydrophilic and hydrophobic components, respectively, was also studied. Although particle reinforcement was easier to process and evenly dispersed into the matrix, its mechanical performance was lower compared with refined fibres. Scanning electron microscopy showed that the matrix better coated the fibres than the particles, resulting in better adhesion and mechanical performance. The morphology of reinforcement played a key role; long fibres oriented in the pulling direction ensured a better mechanical resistance than particle fillers.

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All-cellulose nanocomposites by surface selective dissolution of bacterial cellulose

Cited by 179 publications

References 55 publications

All-cellulose composite and nanocomposite made from partially dissolved micro- and nanofibers of canola straw

All-cellulose composite and nanocomposite made from partially dissolved micro- and nanofibers of canola straw

Coir and Sisal Fibers as Fillers in the Production of Eucalyptus Medium Density Particleboards - MDP

All‐Cellulose Composites

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