# NIR SPECTROSCOPY: A USEFUL TOOL FOR QUALITY CONTROL OF GLASS/PHENOLIC PREPREG MANUFACTURE

> 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 File size: Download the pdf (subscribers only) Buy the pdf (non-subscribers) Journal: Polymers and Polymer Composites Issue Year:...

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Published: 2008-01-01T00:00:00+00:00
Categories: Polymers and Polymer Composites

**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
 File size:
 ![](http://dload.gif) [Download the pdf](http://journals.asp?Page=111&JournalDownload=ON&JournalType=ppc&JournalIssue=ppc16-1&JournalID=100418&JIP=) (subscribers only)
 ![](http://handbuy.gif) Buy the pdf (non-subscribers)
 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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