TY - JOUR
T1 - Morphology, mechanical properties, and dimensional stability of wood particle/high density polyethylene composites
T2 - Effect of removal of wood cell wall composition
AU - Ou, Rongxian
AU - Xie, Yanjun
AU - Wolcott, Michael P.
AU - Sui, Shujuan
AU - Wang, Qingwen
N1 - Funding Information:
The supports from the National Key Technologies R&D Program of China (No. 2012BAD32B04 ) and National Natural Science Foundation of China (Nos. 31010103905 and 31070507 ) are gratefully acknowledged. Yanjun Xie thanks the Program for New Century Excellent Talents in University of Ministry of Education of China (No. NCET-11-0608 ).
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2014/6
Y1 - 2014/6
N2 - Variation in the chemical composition of wood cell walls has a significant influence on the properties of wood plastic composites (WPCs). This study investigated the effect of removal of hemicellulose and/or lignin on the mechanical properties and dimensional stability of WPCs. Four types of wood particles with various compositions including native wood flour (WF), hemicellulose-removed particle (HR), holocellulose (HC), and α-cellulose (αC) were prepared and compounded with high density polyethylene (HDPE) in an extruder, both with and without maleated polyethylene. Injection molding was used to make test specimens. The HR-based composites exhibited the best water resistance. The HC-based composites obtained a greater tensile modulus but a lower water resistance. The highest values for tensile strength, elongation at brake, toughness, and impact strength were achieved by the composites filled with αC.
AB - Variation in the chemical composition of wood cell walls has a significant influence on the properties of wood plastic composites (WPCs). This study investigated the effect of removal of hemicellulose and/or lignin on the mechanical properties and dimensional stability of WPCs. Four types of wood particles with various compositions including native wood flour (WF), hemicellulose-removed particle (HR), holocellulose (HC), and α-cellulose (αC) were prepared and compounded with high density polyethylene (HDPE) in an extruder, both with and without maleated polyethylene. Injection molding was used to make test specimens. The HR-based composites exhibited the best water resistance. The HC-based composites obtained a greater tensile modulus but a lower water resistance. The highest values for tensile strength, elongation at brake, toughness, and impact strength were achieved by the composites filled with αC.
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U2 - 10.1016/j.matdes.2014.02.018
DO - 10.1016/j.matdes.2014.02.018
M3 - Article
AN - SCOPUS:84896889690
SN - 0261-3069
VL - 58
SP - 339
EP - 345
JO - Materials and Design
JF - Materials and Design
ER -