Surface chemistry of fibres

SURFACE CHEMISTRY OF FIBRES AND FILLERS Surface Chemistry of Fibres... 

Kontturi, E.J. Surface Chemistry of Cellulose From Natural Fibres to Model Surfaces. Technische Universiteit Eindhoven, Germany (2005)... 

In a more recent work, MWNTs have been incorporated into surface-modified, reactive P(St-co-GMA) nanofibres by electrospinning. Then resulting nanofibres have been functionalised with epoxide groups and added to the epoxy matrix producing reinforced epoxy resins. The polymer composites have demonstrated over a 20% increase in flexural modulus, when compared with neat epoxy, despite a very low composite fibre weight fraction (at approximately 0.2% by a single-layer fibrous mat). The increase is attributed to the combined effect of the well-dispersed MWNTs and the surface chemistry of the electrospun fibres that enabled an effective cross-linking between the polymer matrix and the nanofibres. 

Alexander MR, Jones FR, Effect of electrolytic oxidation on the surface chemistry of Type A carbon fibres 3. Chemical state, source and location of surface nitrogen, Carbon, 34(9), 1093-1102, 1996. 

Alexander M, Jones FR, The effect of electrol54ic oxidation upon the surface chemistry of Type A carbon fibres. Part 1—X-ray photoelectron spectroscopy, Carbon, 32, 785-794, 1994. 

Kontturi EJ. (2005). Surface chemistry of cellulose from natural fibres to model surfaces, Eindhoven University of Technology. 

Hobbs has shown (12) that the abilities of two morphologically different, but chemically identical, graphite fibres to nucleate isotactic polypropylene differed considerably. The same author also showed (13) that a carbon r lica of a crystalline isotactic polypropylene surface could increase the nucleation of the polymer during recrystallisation. Thus, the physical, not chemical, nature of the nucleating agent has determined its effectiveness. In the present work we have changed the surface chemistry of a particulate filler, without... 

Fubini B.The possible role of surface chemistry in the toxicity of inhaled fibres. In Fibertoxicology. Warheit DB (editor). Academic Press, San Diego 1993 p. 229-257. 

This book deals with the organic chemistry of micelles, vesicles, micellar fibres, surface monolayers and a few 3D crystals formed by the assembly of synthetic surfactants in water or, less common, in organic solvents. Common features of these assemblies are molecular thinness and direct interaction of all their molecules with the environment, usually aqueous media. 

Surfactants find apphcation in almost all disperse systems that are utilised in areas such as paints, dyestulfs, cosmetics, pharmaceuticals, agrochemicals, fibres, and plastics. Therefore, a fundamental understanding of the physical chemistry of surface-active agents, their unusual properties, and their phase behaviour is essential for most formulation chemists. In addition, an understanding of the basic phenomena involved in the application of surfactants, such as in the preparation of emulsions and suspensions and their subsequent stabilisation, in microemulsions, in wetting, spreading and adhesion, is vitally important to arrive at the correct composition and control of the system involved [1, 2]. This is particularly the case with many formulations in the chemical industry mentioned above. 

Sabrine Alila, is associate professor at the Department of Chemistry of the University of Sfax (FSS). Her research topic is concerned with surface chemical modification of cellulose fibres in order to enhance their absorption capacity toward dissolved organic pollutants, including pesticides and herbicides. 

Denter, U., Schollmeyer, E., 1996. Surface modification of synthetic and natural fibres by fixation of cyclodextrin derivatives. Journal of Inclusion Phenomena and Molecular Recognition in Chemistry 25, 197—202. 

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