IngentaConnect On-Line Monitoring of the Buffer Capacity of Particleboard Furnis...

Authors: Andre, N.¹; Young, T.M.¹; Rials, T.G.¹

Source: Applied Spectroscopy, Volume 60, Issue 10, Pages 246A-272A and 1097-1216 (October 2006) , pp. 1204-1209(6)

Publisher: Society for Applied Spectroscopy

Abstract:

This paper reports on a study of on-line monitoring of the buffer capacity of particleboard furnish using near-infrared (NIR) spectroscopy and multivariate analysis models (chemometrics). The buffer capacity of wood furnish is known to affect the quality of polymerization and the curing rates of urea-formaldehyde (UF) resins, which may affect the mechanical properties of manufactured panel. The first phase of the study consisted of building multivariate calibration and validation models from NIR spectroscopy data to predict the buffer capacity of particleboard furnish in a laboratory environment. During this phase, a spectrometer (Ocean Optics USB2000) operating in the 550-1100 nm spectral range was evaluated. The second phase of the study took place at a North American particleboard plant over several weeks. Several multivariate calibration models were constructed and tested on-line during a four-day test period. The on-line root mean square error of prediction (RMSEP) and the coefficient of variation (CV) for buffer capacity predictions ranged from 3.45 to 0.92 and 22.4% to 5.8%, respectively.

Keywords: NEAR-INFRARED SPECTROSCOPY; NIR; PARTICLEBOARD FURNISH; BUFFER CAPACITY; PH; ON-LINE MONITORING; PARTIAL LEAST SQUARES; PLS

Document Type: Research article

DOI: 10.1366/000370206778664734

Affiliations: 1: Forest Products Center, 2506 Jacob Drive, The University of Tennessee, Knoxville, Tennessee 37996-4570

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On-Line Monitoring of the Buffer Capacity of Particleboard Furnish by Near-Infrared Spectroscopy