Imaging of Internal Defects of Polymer-Modified Wood Using Total Focusing Method

• Published in: Advances in polymer technology Vol. 2019; no. 2019; pp. 1 - 7
• Main Authors: Jiao, Guizhong, Zhou, Hongwei, Zhou, Hongju, Sun, Liping, Ma, Ling
• Format: Journal Article
• Language: English
• Published: Cairo, Egypt Hindawi Publishing Corporation 01.01.2019; Hindawi; John Wiley & Sons, Inc; Hindawi Limited; Wiley
• Subjects: Advanced manufacturing technologies; Composite materials; Computer simulation; Construction; Corrosion resistance; Data simulation; Defects; Electric waves; Electromagnetic radiation; Electromagnetic scattering; Electromagnetic waves; Electromagnetism; Friction stir welding; Humidity; Imaging; Manufacturing; Methods; Nondestructive testing; Polymer industry; Polymers; Product testing; Software; Ultrasonic transducers; Wood
• ISSN: 0730-6679; 1098-2329
• DOI: 10.1155/2019/1045280

Polymer modification can improve the stability and corrosion resistance of wood, but it could create defects inside wood during the modification processing. Detection of defects inside polymer-modified wood can reduce wood losses and prevent the occurring of defects. Data simulation and tomographic imaging of polymer-modified wood internal defects were carried out using electromagnetic waves with nondestructive testing. This study constructed the polymer-modified wood models, simulated the electromagnetic scattering wave, and used the total focusing method to perform tomography of the defects in the polymer-modified wood. By analyzing the imaging characteristics of different types of defects, the effectiveness of electromagnetic waves in the detection of internal defects of polymer-modified wood was proved. This method can be extended to test internal defects of other high molecular polymers.