PAPER making! FROM THE PUBLISHERS OF PAPER TECHNOLOGY INTERNATIONAL O U S SO Volume 6, Number 2, 2020
A comparative study of morphological characteristics of medium Ǧ density fibreboard dust by sieve and image analyses Tao Ding (1), Jiafeng Zhao (1), Nanfeng Zhu (1) and Chengming Wang (2). Sanding dust is the main source of dust emission during the manufacturing process of medium-density fibreboard (MDF), and particle size and shape characteristics are the fundamental properties influencing its environmental influence and handling behaviours. However, there are few deep and comprehensive researches on the morphology of MDF sanding dust. In this study, the morphological characteristics of MDF sanding dust were explored by sieve and image analyses. It was found that more than 95% of MDF sanding dust was inhalable particles smaller than 100 μm, which poses a considerable potential risk to human health and safety, especially with the presence of other chemical constituents. The particle size span of MDF dust was relatively wide though the particle surface texture was quite uniform. The particle geometric proportion represented by aspect ratio decreased markedly with the reduction of particle size. The larger particles presented typical anisotropic structure, while the smaller ones showed homogeneous appearance, indicating quite complex handling behaviours. In addition, image analysis was found to provide a better insight into the morphological characteristics of MDF sanding dust compared to sieve analysis, and could be a promising dust morphology evaluation technology. Contact information: 1: Nanjing Forestry University, 159 Longpan Rd., Nanjing 210037, China; 2: Holtrop & Jansma BV Qingdao Office, No.1 Shangma Section of Aodong Road, Qingdao 266114, China.
Ding et al. J Wood Sci (2020) 66:55 https://doi.org/10.1186/s10086-020-01896-x
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Article 6 – Wood Panel
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