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Quality Control of HDPE, LDPE, and PP
Quality Control of HDPE, LDPE, and PP
2020|Metrohm|Applications
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…
Key words
metrohm, metrohmspectroscopy, spectroscopysimple, simplenir, nirpolymers, polymersinhomogeneous, inhomogeneousday, daygranulates, granulatesmanagement, managementequipment, equipmentsql, sqlspectral, spectralsoftware, softwaredestructive, destructivevision
Density of polyolefins measured by nearinfrared spectroscopy
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…
Key words
metrohm, metrohmdensity, densitynirs, nirserror, errormerit, meritbubbles, bubblesnir, nirfigures, figuresair, airbalance, balanceresult, resultyes, yesspectroscopy, spectroscopyday, daynearinfrared
Vis-NIR spectroscopic analysis of wood pulps for multiparameter prediction
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),…
Key words
strength, strengthfreeness, freenesssecv, secvkappa, kappabuckling, bucklingnumber, numberfactors, factorsvis, vissec, sectensile, tensilepulp, pulppulps, pulpsnirs, nirswood, wooddensity
Analysis of polymers using near-infrared spectroscopy
Application Bulletin 414 Analysis of polymers using near-infrared spectroscopy Branch Plastics and polymers Keywords Near-infrared spectroscopy, polymer, monomer, polymerization, polypropylene, polyethylene, PET, polyuethane, polystyrene, resin, polyols, polyesters, polyolefin, hydroxyl number, hydroxyl value, acid value, density, melt flow index, melt flow…
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nir, nirindicate, indicateequivalent, equivalentspectroscopy, spectroscopysummary, summarysampling, samplingmonitor, monitorrecommended, recommendedxds, xdsresults, resultsnirs, nirspolymer, polymerinfrared, infraredused, usednear
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