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Materiale Plastice
Cite as: Mater. Plast.
https://doi.org/10.37358/Mat.Plast.1964

OSIM Nr. R102356
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Materiale Plastice (Mater. Plast.), Year 2003, Volume 40, Issue 2,



Gheorghe Ivan, Aurelia Meghea, Maria Giurginca, Nicoleta Iftimie

Protection of Rubber Vulcanizates with Couples of Diamine Antidegradants and Selected Additives


Abstract:
Aromatic diamines are antidegradants with outstanding capability in protection against oxidative and ozone destruction of elastomers and elastomer-based compounds. Their performances are dependent, among others, on their solubility in elastomer matrix and on migration rate to the matrix surface. In an attempt to control solubility and migration of amine antidegradants, the influence of some special additives (fatty amines, fatty amides, ethoxilated phenols) has been investigated and migration characteristics like diffusion coefficient, migration rate and specific migration are presented and discussed. The obtained data correlate in a semi-quantitative manner with main physical characteristics of vulcanizates in circumstances of thermo-oxidative and ozone degradation.


Keywords:
antidegradant migration; ozone degradation; thermo-oxidative degradation

Issue: 2003 Volume 40, Issue 2
Pages:
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