Performance Additives Articles
Concept explainers, comparisons, and how-tos.
Articles
Anti-Scratch Additives for PP and Automotive Interior Plastics
Scratch visibility in a filled polypropylene interior part is not one failure — it is two. There is the mechanical groove the stylus or fingernail cuts, and there is the whitening around it caused by stress and by talc particles debonding from the matrix.…
ReadHalogen-Free vs Halogenated Flame Retardants — Choosing on Evidence
Halogenated systems interrupt combustion chemically in the gas phase, which makes them extremely efficient: a brominated package with an antimony trioxide synergist reaches a UL 94 V-0 rating at loadings low enough to leave mechanical properties largely…
ReadImpact Modifier Selection by Polymer — and the Properties You Trade Away
There is no universal impact modifier. The modifier has to be chosen for the matrix, because toughening works by dispersing a rubbery phase at the right particle size with the right interfacial adhesion, and each polymer accepts a different chemistry.…
ReadMigratory vs Permanent Anti-Static — Which One Your Part Actually Needs
A migratory antistat works by blooming to the surface and attracting a thin water layer that conducts charge away. It is inexpensive, it works within hours to days, and it stops working when the humidity drops or when the surface is wiped, washed or…
ReadSlip and Anti-Block — Controlling COF Without Losing the Print
Slip and anti-block solve two different problems that are usually bought as one package. Slip agents — erucamide and oleamide — migrate to the surface and lower the coefficient of friction so film runs through formers, collars and sealing jaws. Anti-block…
ReadUV Stabilizer Selection — HALS, Absorbers and the Difference That Matters
A UV absorber and a hindered amine light stabilizer do different jobs. The absorber intercepts UV photons before they reach the polymer backbone and works best in thicker sections where there is enough path length to absorb in. HALS does not absorb UV at…
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