Abstract：X-ray diffraction technology was used to rapidly predict variation in microfibril angle (MFA) in Dendrocalamus farinosus. The results show that there is little variation in MFA with bamboo age from 2a to 5a, and MFA of 3a is at the maximum with the value of 8.521°. The average value of MFA of 2a or 3a is greater than 4a or 5a with absolute differences less than 0.1°. MFA of base, middle and upper position respectively are 8.499°, 8.497° and 8.483° with coefficient of variation about 5%. There is an increasing tendency from the periphery to the inner of bamboo culms. Variance analysis indicates that MFA is highly sensitive to radial position, but insensitive to bamboo age and longitudinal position. The correlation coefficient of longitudinal strength and modulus of elasticity (MOE) is 0.57. MFA was responsible for 35% and 43% of the variation found in longitudinal strength and MOE respectively, which means MFA has a certain extent effect on mechanical properties.
刘杏娥，杨 喜，杨淑敏*，田根林，尚莉莉 . 梁山慈竹微纤丝角的X射线衍射技术解析及对拉伸力学的影响 [J]. 光谱学与光谱分析, 2014, 34(06): 1698-1701.
LIU Xing-e, YANG Xi, YANG Shu-min*, TIAN Gen-lin, SHANG Li-li . Variation of Microfibril Angle in Dendrocalamus farinosus Analyzed Based on X-Ray Diffraction Spectrum and Its Effect on Tensile Properties . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2014, 34(06): 1698-1701.
[1] TENG Feng-en, WANG Yu-ming(腾凤恩, 王煜明). X-Ray Diffraction Analysis of Theory and Experiment(X射线分析原理与晶体衍射实验). Changchun: Jilin University Press(长春：吉林大学出版社), 2002. 11. [2] Abe H，Funada R, Ohtani J, et al. Trees, 1997, 11(6)：328. [3] Hirakawa Y, Yamashita K, Nakada R, et al. Journal of the Japan Wood Research Society, 1997, 43(9)：717. [4] Cave I D，Walker J C F. For. Prod. J.，1994，44(5)：43. [5] Lloyd Donaldson. IAWA Journal, 2008, 29(4)：345. [6] XU Jin-mei, ZHAO Rong-jun, Lü Jian-xiong, et al(徐金梅, 赵荣军, 吕建雄, 等). Scientia Silvae Sinicae(林业科学), 2010, 46(4)：166. [7] JIANG Ze-hui, ZOU Hui-yu, RUAN Xi-gen, et al(江泽慧, 邹惠渝, 阮锡根, 等). Scientia Silvae Sinicae(林业科学), 2000, 36(3)：122. [8] YU Yan, WANG Ge, QIN Dao-chun(余 雁, 王 戈, 覃道春). Journal of Beijing Forestry University(北京林业大学学报), 2007, 35(8)：28. [9] YANG Shu-min, JIANG Ze-hui, REN Hai-qing, et al(杨淑敏, 江泽慧, 任海青, 等). Journal of Nanjing Forestry University(南京林业大学学报), 2009, 33(5)：76. [10] GB/T 15780—1995. Tesling Methods for Phisical and Mechanical Properties of Bamboos(竹材物理力学性质试验方法). Beijing: Standards Press of China(北京：中国标准出版社), 1996. [11] BAO Fu-cheng, JIANG Ze-hui(鲍甫成, 江泽慧). Wood Properties of Main Tree Species from Plantation in China(中国主要人工林树种木材性质). Beijing：China Forestry Publishing(北京：中国林业出版社), 1998. [12] Fang Shengzuo, Yang Wenzhong, Fu Xiangxiang. Journal of Forestry Research, 2004, 15(4)：261. [13] Yang J I, Evans R Holz, Als Roh-und Werkstoff, 2003, 61(6)：449. [14] Daksh Tirath Dhadwal. Using MFA and Density Values of White Spruce to Develop a Prediction Model for Wood Static Bending Strength. University of British Columbia, Forestry Undergraduate These, 2008 Winter Session, Wood, 493. Degree of Bachelor, 2009.
