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  • Biobased foams from condensed tannin extracts from Norway spruce (Picea abies) bark
    Lacoste, Clément ...
    tDifferent kinds of tannin-based foams were developed in the recent past with fisetinidin/robetinidin-typetannins extracted from mimosa (Acacia mearnsii) or quebracho (Schinopsis lorentzi) bark; or ... procyanidin-type tannins from pine (Pinus pinaster and Pinus radiata). These biobased porous products revealedexcellent properties similar to their synthetic counterparts in many applications. Norway spruce (Piceaabies) bark is another large potential source of procyanidin-type tannins. In this study rigid and homo-geneous foams were produced from purified tannins containing at least 80% of polyflavonoid condensedtannins. This paper deals with the study of spruce tannins reactivity for rigid foam formulations. Charac-terization results have point out their very good mechanical resistance (% > 0.08 MPa), and low thermalconductivities (% < 0.045 W/m/K) at low densities (d < 50kg/m3).
    Vir: Industrial crops and products. - ISSN 0926-6690 (Vol. 73, 2015, str. 144-153)
    Vrsta gradiva - članek, sestavni del
    Leto - 2015
    Jezik - angleški
    COBISS.SI-ID - 2380425

    Povezava(-e):

    http://dx.doi.org/10.1016/j.indcrop.2015.03.089

vir: Industrial crops and products. - ISSN 0926-6690 (Vol. 73, 2015, str. 144-153)

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