ETD Electronic Theses & Dissertations
About ETD Search the ETD Database    



Full text available full text is available online.

Document ID:FTY2008-004
Document Type:Dissertation
Author:Xuelian Zhang
E-mail Address:
Title:Characterization of Wood Resin-Adhesive Spray
Department:Forest Resources
Committee Chair:Douglas J. Gardner, Professor of Wood Science and Technology
Chair's E-mail:
Committee Members:Douglas W. Bousfield, Professor of Chemical Engineering ; Albert Co, Professor of Chemical Engineering ; Robert W. Rice, Professor of Wood Science and Technology ; Stephen M. Shaler, Professor of Wood Science and Technology
Subjects:Adhesives; Composite materials; Plywood
Date of Defense:2008


The overall goal of this dissertation was to improve the resin efficiency in the manufacturing process of wood strand-based composites through controlling the characteristics of resin-adhesive spray to produce a uniform droplet size and narrow size distribution. Current lack of corresponding research on the characteristics of resinadhesive spray for maximum resin efficiency inspired the following research: 1) Comprehensive review of the empirical droplet size and size distribution of resinadhesives in wood composite production; 2) Application of a laser diffraction analyzer to characterize wood resin-adhesive spray; 3) Characterizing the spray pattern and mechanism of spinning disk atomization of wood resin-adhesives; 4) Application of a novel spray method, ultrasonic atomization, to generate wood resin-adhesive spray; 5) Investigation of extensional properties of wood resin-adhesives. The research results indicated that: 1) the laser diffraction analyzer is an effective tool to characterize wood-resin-adhesive spray; 2) wood-resin-adhesives under spinning disk atomization at a flow rate of 100 ml/min and rotation rate between 10,000 rpm and 15,000 rpm experienced ligament formation with an average droplet size between 10 jum to 20 jiim and a size distribution mostly around 0 fim to 60 jum; 3) Ultrasonic atomization of wood resin-adhesives has great potential for resin efficiency improvement in industrial applications; 4) the wood-resin-adhesives used in this study showed viscoelastic behavior under extensional flow.

Access to the full text document is restricted to students and faculty at the University of Maine.
Click here to access the document using your UMS login or your name and library bar code

Zhang, Xuelian, University of Maine, FTY2008-004


Fogler Digital Library
How to submit your electronic thesis or dissertation
UM Graduate School Fogler Library The University of Maine