Research on Preparation Methods of Ultrafine Softwood Powder

다국어 초록 (Multilingual Abstract)

Pine wood sawdust is used as raw materials for experimental processing into ultrafine wood powder. Sizes of ultrafine wood powder particles serve as a standard for measuring ultrafine processing. The core part of the experimental processing equipment is the millstone which can exert great shear force and grinding force on strong fiber materials so as to ensure the successful preparation of ultrafine particles. The “equilibrium orbit” model is used to simulate processed superfine particles in calculating separation performance. Moreover, the CFD is chosen for simulating separation performance of wood powder particles with different sizes in the two-phase flow field, so as to ensure the successful separation and grading of wood powder particles with different sizes in the practical processing. Research is made on physical properties of collected wood powder as samples with different sizes and influence on composite material properties when ultrafine wood powder is taken as padding. Research on ultrafine wood powder provides meaningful experimental data and theoretical support for the future research on micro-nano fibrils.

목차 (Table of Contents)

• Abstract
• 1. Introduction
• 2. Experimental Preparation of Ultrafine Wood Powder
• 2.1. The Structure of the Superfine Wood Flour Equipment
• 2.2. Processing Raw Material of Ultrafine Wood Powder
• 2.3. Preparation of Ultrafine Wood Powder
• 3. Separation of Ultrafine Wood Powder
• 3.1. Selection of the Separator.
• 3.2. Calculation of Separation Performance.
• 3.3. Analysis and Simulation of Movement of Wood Powder Particles
• 4. Research on Physical Properties of Ultrafine Wood Power Particles
• 5. Conclusions
• Acknowledgments
• References