Preparation, Characterization and Properties of Paper Sheets Made from Chemically Modified Wood Pulp Treated with Metal Salts
Titel:
Preparation, Characterization and Properties of Paper Sheets Made from Chemically Modified Wood Pulp Treated with Metal Salts
Auteur:
Basta, Altaf H.
Verschenen in:
International journal of polymeric materials
Paginering:
Jaargang 42 (1998) nr. 1-2 pagina's 1-26
Jaar:
1998-11-01
Inhoud:
Three chemically modified wood pulps (CEWP, AOWP and CmEWP) were prepared and used as a substrates for paper sheets. The effect of treating the chemically modified wood pulps with CuCl2 and FeCl3 salts on the mechanical and thermal properties of the formed paper sheets, in addition to their antimicrobial action on some microorganism were studied. The prepared sheets were characterised by IR-spectra, micro-analyses and magnetic succeptibility measurements. The thermal degradation of the prepared sheets has been investigated by means of non-isothermal TG measurements using Coats and Redfern model. The method of least squares was applied to estimate the appropriate order of degradation reaction (n), and consequently the activation parameters. The results obtained reveal that, paper sheets containing Cu(II) ions have a higher strength properties, thermal stabilities, antimicrobial action and magnetic property than paper sheets prepared from untreated and FeCl3-treated modified pulps. Paper sheets prepared from treating the derivatives of partially cyanoethylated wood pulp (AOWP and CmEWP) have high magnetic succeptibility value compared with paper formed from adding Fe2O3, as conventional filler for magnetic paper manufacture. The regression equation which represents the relation between mechanical properties (Qz), crystallinity index and activation energy was also proposed.
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