Determination of additives in polymer pellets by near-infrared spectroscopy
Applications | | Metrohm Instrumentation
NIR Spectroscopy
IndustriesMaterials Testing
ManufacturerMetrohm
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Application Bulletin 414Analysis of polymers using near-infrared spectroscopyBranchPlastics and polymersKeywordsNear-infraredspectroscopy,polymer,monomer,polymerization,polypropylene,polyethylene,PET,polyuethane, polystyrene, resin, polyols, polyesters,polyolefin, hydroxyl number, hydroxyl value, acid value,density, melt flow index, melt flow rate, viscosity, additive,carboxyl end group, carboxyl number.SummaryThis Application Bulletin presents some examples of NIRapplications and...
Key words
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Application Bulletin 409Analysis of chemicals using near-infrared spectroscopyBranchChemicalsKeywordsNear-infrared spectroscopy, chemicals, process monitoring,chemical reaction, moisture determination, hydrocarbon,acid, resin, solvent.No. 5: Qualitatively differentiating aqueous solutions ofaluminum chlorhydroxide and AIC136H20, and solidsaluminum zirconium tetrach\glyp and glycine ...................... 5No. 6: Monitoring water, methyl acetate,...
Key words
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Near-Infrared Spectroscopy Application Note NIR–3Analysis of copolymer levels inpolymer pellets by near-infraredspectroscopyThis Application Note describes the determination of copolymer levels inpolyethylene (PE) and polyvinylacetate (PVA) pellets using NIRS. Withoutany sample preparation and within less than 30 s, NIRS determines thecomposition...
Key words
nir, nircopolymer, copolymerinfrared, infraredpelletized, pelletizedinverts, invertsdescription, descriptionnear, nearspectroscopy, spectroscopyrapidcontent, rapidcontentmath, mathscattered, scatteredpellet, pelletxds, xdsmethod, methodconstants
Near-Infrared Spectroscopy Application Note NIR–7Near-infrared analysis ofpolyols: process monitoring in ahostile environmentDuring polymerization, real-time determination of hydroxyl and acidnumbers of polyols provide important information about the molecularweight and the reaction end point. This Application Note sheds light onthe practical aspects...
Key words
polyol, polyolpolyols, polyolsnir, nirhydroxyl, hydroxylprocess, processbatch, batchovertone, overtonespectroscopy, spectroscopymlr, mlrproduction, productionmonitoring, monitoringendpoints, endpointsreal, realanhydroguide, anhydroguideovercooking