Title: NIR SPECTROSCOPY: A USEFUL TOOL FOR QUALITY CONTROL OF GLASS/PHENOLIC PREPREG MANUFACTURE
Page Range: p.55-62
Author(s): Wei Li; Yu Dong Huang; Ping Chen
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Journal: Polymers and Polymer Composites
Issue Year: ppc
Volume: 16
Issue No: No.1
Abstract
The development of a technique to control the on-line quality of glass/phenolic prepreg cloth using near-infrared (NIR) spectroscopy is reported. This was achieved by the establishment of calibration models for resin content, volatile content and degree of pre-cure using partial least squares regression and testing of several spectral pretreatments to obtain optimum models. Application of the technique to investigate the relationship between resin content, volatile content and degree of pre-cure and various processing parameters is demonstrated and quality control realised by adjusting the appropriate processing parameters. 23 refs.
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