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Title: Characterization of Lignocellulosic-Poly(lactic acid) reinforced composites

Author: Hou, Q.X.; Chai, X.S.; Yang, R.; Elder, T.; Ragauskas, A.J.;

Date: 2005

Source: Journal of Applied Polymer Science, Vol. 99: 1346-1349

Publication Series: Miscellaneous Publication

Description: The effects of adding poly(lactic acid) (PLA) to the physical strength of paper test sheets prepared from three unbleached loblolly pine kraft pulps with different amounts of lignin and an aspen bleached chemothermomechanical pulp were studied. The physical strength studies demonstrated that relatively low levels of PLA addition (0.5-4.0%) could dramatically improve the tensile and burst strength properties as a function of the amount of PLA added. Hot pressing the test sheets was shown to be an important treatment for enhancing the strength properties. An analysis of untreated and PLA-treated hot-pressed test sheets by atomic force microscopy indicated that the addition of PLA markedly altered the surface properties of the sheets.

Keywords: additives, atomic force microscopy (AFM), biopolymers, fibers, strength

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Hou, Q.X.; Chai, X.S.; Yang, R.; Elder, T.; Ragauskas, A.J. 2005. Characterization of Lignocellulosic-Poly(lactic acid) reinforced composites. Journal of Applied Polymer Science, Vol. 99: 1346-1349

 


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