Synthesis of liquid hot water cotton linter to prepare cellulose membrane using NaOH/urea or LiOH/urea

Sinyee Gan, Farah Nadia Mohammad Padzil, Sarani Zakaria, Chin Hua Chia, Sharifah Nabihah Syed Jaafar, Ruey Shan Chen

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The liquid hot water (LHW) pretreatment on cotton linter (CL) was carried out using an autoclave heated in a hot oil bath. The LHW pretreated CL (LCL) was dissolved in NaOH/urea and LiOH/urea aqueous solutions and subsequently used to produce cellulose membrane. The effects of LHW pretreatment, amount of cellulose, and type of alkaline solvent on properties of cellulose solution and cellulose membrane were studied. The formation of cellulose II and crystallinity index (CrI) on the cellulose membranes were confirmed by X-ray diffraction (XRD). The morphology of cellulose membranes were observed by field emission scanning electron microscopy (FESEM). The LHW pretreatment resulted in higher cellulose solubility, higher cellulose solution viscosity, and improved properties of regenerated cellulose products compared to non-treated cellulose. Results also revealed that the amount of cellulose used affected the solubility and viscosity of the cellulose solution and the higher dissolving power of the LiOH/urea system as compared to the NaOH/urea system. In fact, higher solubility and viscosity properties are key factors in many cellulose applications such as membranes, fibers, hydrogels, and other regenerated cellulose products.

Original languageEnglish
Pages (from-to)2244-2255
Number of pages12
JournalBioResources
Volume10
Issue number2
Publication statusPublished - 2015

Fingerprint

Urea
Cellulose
Cotton
urea
cellulose
cotton
membrane
Membranes
liquid
Water
Liquids
solubility
viscosity
Solubility
hot water
Viscosity
Hydrogels
Autoclaves
crystallinity
Field emission

Keywords

  • Alkaline aqueous solution
  • Cellulose pretreatment
  • Rapid dissolution
  • Regenerated cellulose

ASJC Scopus subject areas

  • Waste Management and Disposal
  • Environmental Engineering
  • Bioengineering

Cite this

Synthesis of liquid hot water cotton linter to prepare cellulose membrane using NaOH/urea or LiOH/urea. / Gan, Sinyee; Padzil, Farah Nadia Mohammad; Zakaria, Sarani; Chia, Chin Hua; Syed Jaafar, Sharifah Nabihah; Chen, Ruey Shan.

In: BioResources, Vol. 10, No. 2, 2015, p. 2244-2255.

Research output: Contribution to journalArticle

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AU - Syed Jaafar, Sharifah Nabihah

AU - Chen, Ruey Shan

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