Journal
COMPOSITES PART B-ENGINEERING
Volume 42, Issue 4, Pages 946-948Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2010.12.022
Keywords
Prepreg; Analytical modeling; Non-destructive testing
Funding
- National Natural Science Foundation of China [50903025]
- Research Fund for the Doctoral Program of Higher Education of China [20092302120032]
- China Postdoctoral Science Foundation [0080440844]
- Technology Program for Outstanding Young in Harbin [RC2010QN017001]
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In the manufacture of the prepreg, the impregnation degree was a key factor to ensure the quality of the prepreg. In experiment, the impregnation degree of the prepreg was analyzed by developing the reference method. Near infrared (NIR) spectra were combined with partial least squares (PLS) to develop the calibration models of the impregnation degree of the prepreg. The determination coefficient (R-2) was 0.98 and root mean square error of calibration (RMSEC) was 4.24 for the calibration models. The regression coefficient of the actual values against NIR predicted values for calibration model was 0.989. With this rapid and noncontact analytical method, prepreg quality will be improved. (C) 2011 Elsevier Ltd. All rights reserved.
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