Real-Time Quality Control for Polymer Manufacturing Using FT-NIR
Polyurethane polymers are most commonly formed by reacting a di- or poly-isocyanate with a polyol. Both the isocyanates and polyols used to make polyurethanes typically contain two or more functional groups per molecule. Different types of polyols and isocyanates can form different polyurethane products with dissimilar properties and end uses. Important quality parameters such as, hydroxyl value of polyols and the isocyanate number (%NCO) of isocyanates are very important for evaluating incoming raw material as well as monitoring reaction control parameters.
Near infrared spectroscopy is a technique that has been used widely in the polymer industry. This Application Note explores Fourier transform near infrared (FT-NIR) analysis in three polymer applications:
- At-line polyether polyols’ hydroxy value analysis
- Real-time isocyanate number monitoring during a polyurethane reaction
- Offline quality control of percentage styrene in styrene copolymers
Discover the advantages of NIR spectroscopy in your polymer process and quality control applications. Download the application note today.