Near-infrared spectroscopy (NIR) was applied in manufacture of the Armos fiber/prepreg tape. The reinforced material, resin matrix, and prepreg were analyzed by NIR spectroscopy, the qualitative and quantitative method. The volatile content and resin content of the calibration models were developed by partial least squares. The analytical result showed that, it was a rapid, nondestructive, and noncontact method for the simultaneous measurement of prepreg quality. This method enhanced the quality of prepreg. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012
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