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Comparative study on overall, surface and centre compressed solid wood.

Ren Li1

  • 1College of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou, 412007, Hunan, P. R. China. 774769545@qq.com.

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|July 2, 2025
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Summary
This summary is machine-generated.

This study enhanced white poplar wood properties through thermos-hydro-mechanical (THM) compression. Surface compression yielded the highest density, modulus of elasticity, modulus of rupture, and hardness, improving wood utilization.

Keywords:
Centre compressed solid woodOverall compressed solid woodPhysical and mechanical propertiesSurface compressed solid wood

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Area of Science:

  • Wood science and materials engineering.
  • Focus on enhancing properties of low-density solid wood.

Background:

  • Low-density solid wood presents challenges for efficient utilization.
  • Thermos-hydro-mechanical (THM) treatments offer potential for wood modification.

Purpose of the Study:

  • To investigate the effects of surface, center, and overall compression on white poplar wood.
  • To compare the structural, density, and mechanical properties of differently compressed wood.

Main Methods:

  • White poplar (Populus tomentosa) solid wood was subjected to surface, center, and overall compression.
  • Comparative analysis of wood structure, density, modulus of elasticity (MOE), modulus of rupture (MOR), and hardness was performed.

Main Results:

  • THM treatment effectively controlled wood structure.
  • Uneven structures improved wood density and bending resistance at equal compression rates.
  • Higher surface layer density correlated with improved bending properties and hardness.

Conclusions:

  • Surface-compressed wood demonstrated superior density, MOE, MOR, and hardness.
  • Optimizing densified layer placement enhances wood's physical and mechanical performance.
  • Targeted compression improves efficient utilization of solid wood resources.