Abstract
The reactivity of natural cellulose pulp is a key parameter in dissolving pulp in the viscose-fibre production process. Traditional analytical methods of the pulp are time-consuming, laborious and polluting. A rapid method for reactivity using a combination of near infrared diffuse reflectance spectroscopy and chemometrics is proposed in this paper. For this study, 92 samples of natural cellulose pulp (reactivity range 2 s to >250 s) were collected, and their reactivity values were determined as reference data by the standard method FZ/T 50010.13. A principal component analysis (PCA)-based model for distinguishing qualified samples from unqualified samples and a soft independent modelling of class analogy (SIMCA)-based model were constructed, respectively. The discrimination power of the SIMCA model was higher than that of the PCA model in all the samples. A quantitative calibration model of reactivity was established by PLS1 with a coefficient of determination of 0.84, standard error of calibration of 1.76 s, standard error of prediction of 2.12 s and ratio of prediction to deviation of 2.53. The new method is rapid, environmentally friendly, low cost and sufficiently accurate to be of value to the textile industry.
© 2015 The Author(s)
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription
Add to BibSonomy