Počet záznamov: 1
Optimized lignin recovery from black liquor for enhanced mechanical properties of acrylonitrile butadiene rubber composites
SYS 0125995 LBL 00000naa^^22^^^^^^^^450 005 20250109150823.3 017 70
$a 10.17423/afx.2024.66.2.05 $2 DOI 100 $a 20250109d m y0sloc0103 ba 101 0-
$a eng 102 $a SK 200 1-
$a Optimized lignin recovery from black liquor for enhanced mechanical properties of acrylonitrile butadiene rubber composites $f Richard Nadányi, Michaela Džuganová, Aleš Ház 215 $c Graf., obr., tab. 320 $a Lit. 330 $a Due to climate change, the transition from petroleum-based materials to renewable sources is essential. Lignin, a complex aromatic polymer derived from lignocellulosic biomass, offers a promising alternative. This study is focused on optimizing lignin recovery from black liquor based on the LignoBoost™ process and evaluating its application in acrylonitrile butadiene rubber (NBR). The optimized conditions (80 °C, pH 2.0) yielded lignin with significantly lower phenolic hydroxyl group concentrations compared to lignins prepared according to the design of the experiment (DoE). Surface property analysis revealed a high surface free energy of 55.3 mJ/m², indicating potential for interaction with various substances. A DoE approach to investigate the influence of precipitation conditions on lignin properties is employed in the study. NIR spectroscopy and surface property measurements were used for lignin characterization. The results demonstrated that hydroxyl group concentrations, influenced by black liquor freshness and filtration temperature is significantly affected by the preparation method. Notably, pilot lignin (PL) application in NBR composites resulted in a more than twofold increase in tensile strength and elongation at break compared to NBR without additives or with commercial lignin. These findings suggest that lignin recovered through optimized processes can enhance the mechanical properties of NBR, offering a sustainable alternative to traditional additives. This research provides valuable insights for further exploration of lignin’s potential in industrial applications, particularly in the context of lignin recovery and utilization in pulp mills. 463 -1
$1 001 sldk_un_cat*0125930 $1 011 $a 1336-3824 $1 200 1 $a Acta Facultatis Xylologiae Zvolen $e vedecký časopis Drevárskej fakulty $v Vol. 66, no. 2 (2024), s. 51-59 $1 210 $a Zvolen $c Technická univerzita vo Zvolene $d 2024 610 1-
$9 sldk_un_auth*h007595 $a lignín $X lignin 610 1-
$9 sldk_un_auth*h031235 $a aktivácia lignínu $X lignin activation 610 1-
$9 sldk_un_auth*0066415 $a akrylonitrilbutadiénový kaučuk $X acrylonitrile butadiene rubber 610 1-
$9 sldk_un_auth*0038903 $a metóda DoE $X DoE method $X design of experiment method 610 1-
$9 sldk_un_auth*h016020 $a kraft lignin $X kraft lignin 610 1-
$9 sldk_un_auth*h022773 $a obnoviteľné zdroje $X renewable resources 675 $a 630*864.4 $v 1. stred. $z slo 675 $a 519.242 $v 2.stred $z slo 700 -1
$3 sldk_un_auth*0066413 $a Nadányi $b Richard $4 070 701 -1
$3 sldk_un_auth*0066414 $a Džuganová $b Michaela $4 070 701 -1
$3 sldk_un_auth*0036116 $a Ház $b Aleš $4 070 801 -0
$a SK $b ZV001 $c 20250109 $g AACR2 856 4-
$u https://df.tuzvo.sk/sites/default/files/05-02-24_0.pdf
Počet záznamov: 1