Nanohardness and elasticity of cell walls of Scots pine (Pinus sylvestris L.) juvenile and mature wood

被引:11
作者
Mania, P. [1 ]
Nowicki, M. [2 ]
机构
[1] Poznan Univ Life Sci, Fac Forestry & Wood Technol, Dept Wood Sci & Thermal Tech, Wojska Polskiego 38-42, PL-60627 Poznan, Poland
[2] Adam Mickiewicz Univ, Ctr Adv Technol, Uniwersytetu Poznanskiego 10, PL-61614 Poznan, Poland
关键词
nanohardness; cell wall; juvenile wood; mature wood; modulus of elasticity; CELLULOSE MICROFIBRIL ANGLE; MECHANICAL-PROPERTIES; SPRUCE WOOD; YOUNGS MODULUS; HARDNESS; NANOINDENTATION; SOFTWOODS;
D O I
10.24425/bpasts.2020.134645
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The aim of this study was to determine the hardness and reduced modulus of elasticity of juvenile wood of Scots pine (Pinus sylvestris L.) using the nanoindentation method, and then to compare the results obtained with those of mature wood. The hardness of juvenile pine wood determined by means of the nanoindentation method was 0.444 GPa while for mature wood it was 0.474 GPa. Statistically significant differences between the values were found. The reduced modulus of elasticity in juvenile wood was 14.0 GPa and 16.4 GPa in mature wood. Thus, the hardness values obtained were about 7% higher, while the modulus of elasticity was 17% higher in mature wood. All determinations were made in the S2-layer of the secondary cell wall.
引用
收藏
页码:1237 / 1241
页数:5
相关论文
共 29 条
[1]  
[Anonymous], 2006, Bulletin of the Polish Academy of Sciences: Technical Sciences
[2]   Cellulose microfibril angle in the cell wall of wood fibres [J].
Barnett, JR ;
Bonham, VA .
BIOLOGICAL REVIEWS, 2004, 79 (02) :461-472
[3]   MODELING STRUCTURE OF SOFTWOOD CELL-WALL FOR COMPUTATION OF MECHANICAL-PROPERTIES [J].
CAVE, ID .
WOOD SCIENCE AND TECHNOLOGY, 1976, 10 (01) :19-28
[4]  
CAVE ID, 1994, FOREST PROD J, V44, P43
[5]  
Dinwoodie J., 1981, TIMBER ITS NATURE BE, DOI [10.4324/9780203477878, DOI 10.4324/9780203477878]
[6]  
Donaldson L. A., 1992, New Zealand Journal of Forestry Science, V22, P77
[7]  
DONALDSON LA, 1991, WOOD SCI TECHNOL, V25, P15, DOI 10.1007/BF00195553
[8]  
Fabisiak E., 2007, Annals of Warsaw University of Life Sciences, Forestry and Wood Technology, P207
[9]   Variation in the Microfibril Angles in Resonance and Non-Resonance Spruce Wood (Picea abies [L.] Karst.) [J].
Fabisiak, Ewa ;
Mania, Przemyslaw .
BIORESOURCES, 2016, 11 (04) :8496-8508
[10]   Cell-wall hardness and Young's modulus of melamine-modified spruce wood by nano-indentation [J].
Gindl, W ;
Gupta, HS .
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2002, 33 (08) :1141-1145