吉林大学学报(工学版) ›› 2012, Vol. 42 ›› Issue (增刊1): 440-443.

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Microstructure and tensile property of poplar Ponulus hopeiensis leaves

LI Xiu-juan, LIANG Yun-hong, ZHANG Zhi-hui, REN Lu-quan   

  1. Key Laboratory of Bionic Engineering, Ministry of Education, Jilin University, Changchun 130022, China
  • Received:2011-06-21 Online:2012-09-01 Published:2012-09-01

Abstract: The tensile property between the leaf vein and the mesophyll was measured. The relationship between the tensile property of the poplar Ponulus hopeiensis leaf and the microcosmic through observing the microcosmic of the poplar Ponulus hopeiensis leaf was analyzed. The results show that leaf vein is the porous cellular composite structure which consists of the epidermal tissue, the parenchyma, the vascular bundle and other mechanical tissue. The mesophyll is the layered structure composed of the palisade tissue and the spongy tissue. The main vein and the main vein carrying the mesophyll of the poplar leaf have different tensile property. The more mesophyll is carried, the larger tensile force is. The poplar Ponulus hopeiensis leaf has strength at an intense level. Its carrying capacity depends on the development level of the epidermal tissue, the vascular bundle and the mechanical tissue of the leaf vein. The research supplies the reference for the anti-fatigue design in the bionic engineering.

Key words: biological engineering, leaves of poplar, vein, mesophyll, microstructure, tensile property

CLC Number: 

  • Q964
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