Chitin Nanofibers with a Uniform Width of 10 to 20 nm and Their Transparent Nanocomposite Films

Ifuku, Shinsuke; Nakagaito, Antonio Norio; Saimoto, Hiroyuki

doi:10.5772/23930

Cited by 4 publications

(3 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Crab shells were crushed to powder and purified according to the well established method. 1 wt.% slurry of crab chitin was prepared by a series of chemical treatment described in a previous chapter [14]. In brief minerals were removed by HCl treatment, suspension was filtered and washed thoroughly with distilled water, removal of proteins was done by refluxing the suspension with NaOH, pigments and lipids were removed by ethanol.…”

Section: Cnfs From Crab Shellsmentioning

confidence: 99%

See 1 more Smart Citation

Chitin Nanofibers, Preparations and Applications

Ifuku¹,

Shervani²,

Saimoto³

2013

Advances in Nanofibers

Self Cite

View full text Add to dashboard Cite

Section: Cnfs From Crab Shellsmentioning

confidence: 99%

“…We have published a number of review articles [11,14,15] covering back ground of CNFs in detail, method of preparation, sources, composition, physical and chemical properties, characterization, their composites and derivatives preparations, surface modification. Commercialization of dry chitin powder and CNFs has also been described.…”

Section: Introductionmentioning

confidence: 99%

Chitin Nanofibers, Preparations and Applications

Ifuku¹,

Shervani²,

Saimoto³

2013

Advances in Nanofibers

Self Cite

View full text Add to dashboard Cite

“…Because of the recent developments in nanotechnology, nanofibers have been paid much attention in research community. Nanotechnology may create many new materials and devices with a vast range of applications such as in medicine, electronics, biomaterials and energy production [1]. As described in some reports, due to their unique characteristics such as a very large surface area to mass ratio and other properties, which allow many promising properties for advanced applications, the fabrication of nanofibers is the subject of much attention.…”

Section: Introductionmentioning

confidence: 99%

Chitin Nanofibers / Epoxy Resin Optically Transparent Nanocomposite Films

Shao

Li³

et al. 2012

AMR

View full text Add to dashboard Cite

Chitin nanofibers were prepared from prawn shell by a simple mechanical treatment after the removal of proteins and minerals. Since the exoskeleton of prawn is made up of a finer structure nano-fibrillation of prawn shell is easy, which allows chitin nanofibers to be prepared under neutral pH conditions. The obtained nanofibers were observed by FE-SEM and found to have a uniform width of approximately 20-40nm and high aspect ratio that more than 1000. Due to the size effect of the chitin nanofibers, the nanocomposite films had high transparency that the chitin nanofibers/epoxy resin nanocomposite transmitted 85.2% of light compared to the light transmittance of pure epoxy resin（91%）and the light transmittance of pure chitin nanofibers sheet (70.1%) at a visible wavelength of 600nm. In the study the coefficient of thermal expansion (CTE) from 20 to 160°C of the epoxy resin sheet was measured to be 170 ppm/K. By adding 40 wt% of chitin nanofibers, the CTE of the epoxy resin dropped to 22 ppm/K, approximately 1/8th of its original value. The novel material is a candidate for transparent substrates in the manufacturing optoelectronic devices such as flexible displays and solar cells.

show abstract