%0 Journal Article
%T ENZYMATIC HYDROLYSIS LIGNIN DERIVED FROM CORN STOVER AS AN INTRINSTIC BINDER FOR BIO-COMPOSITES MANUFACTURE: EFFECT OF FIBER MOISTURE CONTENT AND PRESSING TEMPERATURE ON BOARDSĄŻ PROPERTIES
%A Xiaoyan Zhou
%A Lijuan Tang
%A Weidong Zhang
%A Chenglong Lv
%J BioResources
%D 2011
%I North Carolina State University
%X Binderless fiberboards from enzymatic hydrolysis lignin (EHL) and cotton stalk fibers were prepared under various manufacturing conditions, and their physico-mechanical properties were evaluated. Full factorial experimental design was used to assess the effect of fiber moisture content and pressing temperature on boardsĄŻ properties. In addition, differential scanning calorimetry (DSC) was used to obtain the glass transition temperature (Tg) of EHL. We found that both fiber moisture content and pressing temperature had significant effects on binderless fiberboardsĄŻ properties. High fiber moisture content and pressing temperature are suggested to contribute to the self-bonding improvement among fibers with lignin-rich surface mainly by thermal softening enzymatic hydrolysis lignin. In this experiment, the optimized pressing temperature applied in binderless fiberboard production should be as high as 190ĄăC in accordance with the EHL Tg value of 189.4ĄăC, and the fiber moisture content should be limited to less than 20% with a higher board density of 950 kg/m3 to avoid the delamination of boards during hot pressing.
%K Enzymatic hydrolysis lignin
%K Agricultural residues
%K Self-bonding
%K Fiberboard
%U www.ncsu.edu/bioresources/BioRes_06/BioRes_06_1_0253_Zhou_TZLZZDTL_Enz_Hydr_Lignin_Corn_Bind_Comp_Mois_Temp_Bd_1272.pdf