Quantitative Analysis of Additives in Low-Density Polyethylene Using Infrared Spectroscopy and Multivariate Calibration

Authors: Vigerust, B.1; Kolset, K.1; Nordenson, S.1; Henriksen, A.2; Kleveland, K.2

Source: Applied Spectroscopy, Volume 45, Issue 2, Pages 143-315 (February 1991) , pp. 173-177(5)

Publisher: Society for Applied Spectroscopy

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Abstract:

Multivariate calibration methods have been used to establish a new method for measurements of three selected additives in low-density polyethylene. The determination of the concentration of silica, erucamide, and butylhydroxytoluene (BHT) is based on infrared (IR) spectroscopy and a calibration model. The concentrations are between 20 and 1100 wt/ppm. Compared to traditional chemical analyses, the new method is both time and cost effective and is more precise. The method has potential for quality control of polyethylene.

Keywords: Infrared spectroscopy; Multivariate calibration; Quality control

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702914337605

Affiliations: 1: Center for Industrial Research, P.O. Box 124 Blindern, 0314 Oslo 3, Norway 2: Statoil, Bamble Polymer Research and Development Centre, 3960 Stathelle, Norway

Publication date: February 1, 1991

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