TY  - JOUR
N1  - cited By 0
SP  - 4323
IS  - 3
SN  - 19302126
TI  - Anaerobic Biodegradation of Urea Cross-linked Starch: Effect of Lignin on Tensile Properties
ID  - scholars17544
A1  - Majeed, Z.
A1  - Ajab, Z.
A1  - Mansor, N.
A1  - Alqahtani, Y.S.
A1  - Mahnashi, M.H.
A1  - Alyami, B.A.
A1  - Alqarni, A.O.
Y1  - 2022///
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85137600745&doi=10.15376%2fbiores.17.3.4323-4330&partnerID=40&md5=2caa3484819d5802eddbc182feb1c0e3
PB  - North Carolina State University
KW  - Biodegradation; Crosslinking; Elastic moduli; Metabolism; Soil testing; Soils; Starch; Tensile strength; Urea
KW  -   reductions; Anaerobics; Anerobic biodegradation; Anerobic soil; Biocomposite; Cross-linked starch; Kraft lignin; Natural fillers; Tensile characteristics; Tensile
KW  -  cross-linked starch
KW  -  Lignin
EP  - 4330
AV  - none
N2  - Lignin was used as a natural filler to improve the recalcitrance of environmentally friendly biocomposites made from starch. The tensile properties of lignin-starch biocomposites prepared by lignin reinforcing of urea cross-linked starch (UcS) were investigated in this study. The amount of lignin loaded into UcS was from 5 to 20. These various compositions were buried in a microcosm of anaerobic soil. After 7 days of burial, biodegraded biocomposites were tested for changes in tensile characteristics. Changes in biodegradation were measured by comparing them to pristine samples, which were utilised as a benchmark for estimating. Through reinforcing polymeric starch in UcS, lignin was discovered to slow down the rate of loss in tensile characteristics of composites. With increasing lignin loadings from 5 to 20, biodegraded biocomposites showed a constant reduction in elongation at break, Young's modulus, and tensile strength. As a result, the biodegraded biocomposites' metrics exhibited a substantially slower decrease than the control biodegraded film. The reduction in tensile properties of biodegraded biocomposites was explained by a significant difference (p < 0.05) using a paired t-test. This study found that lignin increased the strength of UcS and reduced the loss of tensile characteristics, probably as a result of soil microorganisms' biodegradation activity being inhibited. © 2022, North Carolina State University. All rights reserved.
VL  - 17
JF  - BioResources
ER  -