Paper Information

Journal:   IRANIAN POLYMER JOURNAL (ENGLISH)   2004 , Volume 13 , Number 6; Page(s) 471 To 478.
 
Paper: 

SURFACE CHARACTERIZATION OF PULP PAPER FIBRES USING INVERSE GAS CHROMATOGRAPHY

 
 
Author(s):  SHAKERI A.R.*, TABAR HAIDAR K.
 
* GORGAN AGRICULTURAL SCIENCE AND NATURAL RESOURCES UNIVERSITY, GORGAN, I.R. IRAN
 
Abstract: 

The surface characteristics of treated plup paper fibre were investigated using inverse gas chromatography (IGC). The surface of the pulp paper fibres was modified with γ-aminopropyl-triethoxysilane, dichlorodiethylsilane and vinyl triethoxysilane. The effectiveness of these surface treatments was monitored by the IGC adsorption curves using n-alkanes and acid-base probes. The empirical acid (KA) and base (KD) characteristics (i.e., electron donor / acceptor abilities) of untreated and treated pulp papers fibres were determined using Schultz’s method and were correlated with the surface chemical compositions determined from Fourier transform infrared spectroscopy (FTIR) technique. The results indicated that the surface of untreated pulp paper fibres had an acidic characteristic due the to the electron acceptor character of the hydroxyl protons. γ-Aminopropyl triethoxysilane produced a basic surface behaviour attributed to the electron donor ability of the amino groups. Dichlorodiethylsilane produced a strong acidic surface attributed to the highly electronegative nature of the chlorine atoms. When the fibres were treated with vinyl triethoxysilane, an acidic surface was observed.

 
Keyword(s): PULP PAPER FIBRES, INVERSE GAS CHROMATOGRAPHY, ACID- BASE PROPERTIES, SURFACE, CHARACTERISTICS
 
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