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Title of Journal: Cellulose

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Abbravation: Cellulose

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Springer Netherlands

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DOI

10.1007/s12498-011-0238-x

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1572-882X

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Morphology of cellulose objects regenerated from c

Authors: Olga Biganska Patrick Navard
Publish Date: 2008/10/11
Volume: 16, Issue: 2, Pages: 179-
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Abstract

The precipitation in aqueous media of cellulose from solutions in Nmethylmorpholine Noxide NMMO hydrates is an important stage in the process of manufacturing of fibres films and other cellulose objects It is responsible for the formation of the structure of the regenerated object and their morphological characteristics significantly influence the properties of the final products Regeneration of rather large cellulose objects was observed in situ by optical microscopy It was found that all regenerated objects present an asymmetric structure composed of a dense skin surrounding a sublayer characterised by the presence of fingerlike voids The porous texture of the cellulose parts between these voids is typical of the one obtained by spinodal decomposition The morphologies of regenerated cellulose samples are described as a function of various parameters initial cellulose solutions and composition and temperature of the aqueous regeneration bath A mechanism of the structure formation during regeneration is proposed

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  2. Properties of cellulose films prepared from NaOH/urea/zincate aqueous solution at low temperature
  3. Effect of tethered and free microfibrillated cellulose (MFC) on the properties of paper composites
  4. Biofunctionalized bacterial cellulose membranes by cold plasmas
  5. Chemically extracted nanocellulose from sisal fibres by a simple and industrially relevant process
  6. Use of oxidized regenerated cellulose as bactericidal filler for food packaging applications
  7. Flexible cellulose/LiFePO 4 paper-cathodes: toward eco-friendly all-paper Li-ion batteries
  8. Fabrication of durable and cost effective superhydrophobic cotton textiles via simple one step process
  9. Novel hybrid process for the conversion of microcrystalline cellulose to value-added chemicals: part 1: process optimization
  10. Production of cellulose nanofibrils from bleached eucalyptus fibers by hyperthermostable endoglucanase treatment and subsequent microfluidization
  11. Comparison of acid sulfite (AS)- and prehydrolysis kraft (PHK)-based dissolving pulps
  12. Ultra-lightweight poly (sodium acrylate) modified TEMPO-oxidized cellulose nanofibril aerogel spheres and their superabsorbent properties
  13. Cellulose/iron oxide hybrids as multifunctional pigments in thermoplastic starch based materials
  14. Removal of methyl orange from aqueous solutions by adsorption on cellulose hydrogel assisted with Fe 2 O 3 nanoparticles
  15. The effects of ionizing radiation on the cellulose of woodfree paper
  16. Prediction of alkaline pulping yield: equation derivation and validation
  17. Cationic wood cellulose films with high strength and bacterial anti-adhesive properties
  18. The glass transition and crystallization of ball milled cellulose
  19. Comparison of digestibility of wood pulps produced by the sulfate and TMP methods and woodchips of various botanical origins and sizes
  20. Material properties of the cell walls in nanofibrillar cellulose foams from finite element modelling of tomography scans
  21. Dyeing performances of ramie fabrics modified with an amino-terminated aliphatic hyperbranched polymer
  22. Cotton fiber hot spot in situ growth of Stöber particles
  23. Can delignification decrease cellulose digestibility in acid pretreated corn stover?
  24. Cellulose electro-active paper fabricated by facile solvent exchange pretreatment and its physical and electromechanical properties
  25. The pyrolysis process of wood biomass samples under isothermal experimental conditions—energy density considerations: application of the distributed apparent activation energy model with a mixture of distribution functions
  26. Splitting tendency of cellulosic fibers. Part 3: splitting tendency of viscose and modal fibers
  27. In situ fabrication of a microporous bacterial cellulose/potato starch composite scaffold with enhanced cell compatibility
  28. Functionalization of cotton with poly-NiPAAm/chitosan microgel: Part II. Stimuli-responsive liquid management properties
  29. Preparation and characterization of cellulose nanofibers from partly mercerized cotton by mixed acid hydrolysis
  30. Roles of xyloglucan and pectin on the mechanical properties of bacterial cellulose composite films
  31. Efficient hydrolyzation of cellulose in ionic liquid by novel sulfonated biomass-based catalysts
  32. Molecular simulation study with complex models of the carbohydrate binding module of Cel6A and the cellulose Iα crystal
  33. Interfacial properties of cellulose nanoparticles obtained from acid and enzymatic hydrolysis of cellulose
  34. Evaluation of a method for treatment of iron gall ink corrosion on paper
  35. Poly(oxyethylene) and ramie whiskers based nanocomposites: influence of processing: extrusion and casting/evaporation
  36. Novel cotton cellulose by cationization during mercerization—part 2: the interface phenomena
  37. Surface properties and porosity of highly porous, nanostructured cellulose II particles
  38. Cellulose propionate/poly( N -vinyl pyrrolidone- co -vinyl acetate) blends: dependence of the miscibility on propionyl DS and copolymer composition
  39. Reactions between cellulose diacetate and alkenylsuccinic anhydrides and characterization of the reaction products
  40. Nonalkali swelling solutions for regenerated cellulose
  41. Kinetics of enzymatic deacetylation of chitosan
  42. Isolation and handedness of helical coiled cellulosic thickenings from plant petiole tracheary elements
  43. Correlation of the thermal stability and the decomposition kinetics of six different vegetal fibers
  44. Investigation of nanofiber nonwoven meshes produced by electrospinning of cellulose nanocrystal suspensions in cellulose acetate solutions
  45. Effect of xylan in hardwood pulp on the reaction rate of TEMPO-mediated oxidation and the rheology of the final nanofibrillated cellulose gel
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