Analysis of polymer granulate by near-infrared spectroscopy

AN-NIR-083 Quality Control of HDPE, LDPE, and PP Non-destructive determination of polymers within one minute with NIRS Summary Identification of individual polymers with FT-IR spectroscopy can be a challenge due to sample inhomogeneity especially when larger sample sizes need to…

AN-NIR-102 Density of polyolefins measured by nearinfrared spectroscopy Simple routine analysis of polymer pellets Summary Aside from melt flow rate, density is the most important parameter to describe the properties of polyethylene (PE) materials. PE stiffness, rigidity, and heat resistance…

NIR Application Note NIR-39 Vis-NIR spectroscopic analysis of wood pulps for multiparameter prediction This Application Note shows that visible near-infrared spectroscopy (Vis-NIRS) can simultaneously determine six pulp parameters (kappa number (titration), applied density (densimeter), pulp freeness (CSF), breaking strength (SCT),…

AN-NIR-081 Quality Control of Polyethylene Reliable determination of PE density within one minute using NIRS Summary Determination of the density of polyethylene (PE) (ASTM D792) is normally a challenging procedure due to reproducibility difficulties. Since this parameter is most frequently…