Paper functionalization by means of enzymatic surface treatments using hydrophobic compounds and lignosulfonates
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Cusola, Oriol. Paper functionalization by means of enzymatic.....pdf (346,8Kb) (Accés restringit)
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hdl:2117/16451
Tipus de documentText en actes de congrés
Data publicació2012
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Abstract
In the present work an innovative method for achieving enzymatic surface functionalization on finished paper sheets is presented. A commercial filter paper was surface sized with laccase derived from Trametes Villosa, Lauryl Gallate (LG) as hydrophobic compound, and soluble lignin. Moreover, this study shows the positive influence of sulfonated lignin (SL) acting as a dispersant improving the surface distribution of the LG along the paper sheet. The hydrophobic behavior of obtained sheets is comparable to the commercial ones. Hydrophobicity was measured by the water absorption test, and the variation in the contact angle through time was monitorized by a contact angle goniometer. Hydrophobized paper absorption was compared with Teflon® in order to determine the evaporated and absorbed water amounts from the paper surface. The treatment time, was also studied
CitacióCusola, O. [et al.]. Paper functionalization by means of enzymatic surface treatments using hydrophobic compounds and lignosulfonates. A: EWLP-12th European Workshop on Lignocellulosics and Pulp. "EWLP 2012". 2012, p. 146-149.
ISBN978-952-10-8187-3
Fitxers | Descripció | Mida | Format | Visualitza |
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Cusola, Oriol. ... means of enzymatic.....pdf | 346,8Kb | Accés restringit |