Anti-degradant Analysis

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Qualitative Additive analysis of tire rubber using Py-GCMS

The components that make up an automobile tire are numerous. It includes different natural and man-made polymers (Natural rubber (NR), Styrene butadiene rubber (SBR), polybutadiene rubber (PBD), antioxidants (6PPD, 7PPD, IPPD, TMQ, etc), accelerators (DPG (Diphenyl Guanidine), TBBS (N-tert-butyl-2-benzothiazole sulfenamide), DCBS (N, N’-dicyclohexyl-2-benzothiazole sulfenamide), etc) and different organic oils. Each component of a tire used to make automotive tires is specially made to meet the various needs of each function. To ensure that the rubber is molded with additives and rubber ingredients suited for a certain part of the tire, various rubber formulas are employed.

Qualitative Additive analysis of tire rubber using Py-GCMS
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Different additives analysis in tyre rubber

ApplicationDifferent additives analysis in tyre rubber
Measuring ObjectsSolid Samples
Detection Range
PPM to Percentage
InjectorPyrolyzer
DetectorMass Spectrometric Detector(MSD

Application

In product development, understanding how particular additives impact rubber performance is crucial. In this study, the additives found in various vehicle tire components were examined using gas chromatography coupled with thermal desorption Pyrolysis (TD-Py) and detected using MSD

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GBA Analyzer features

  • Full hardware and software turnkey solution.
  • Fast compositional analysis of tire additives.
  • Robust and accurate.
  • Multi-shot pyrolysis for solid sample analysis.
  • Excellent Repeatability & Reproducibility.
Image A: Pyrolysis of tire rubber at 7000 C. Peak 1-Butadiene, 2-Isoprene, 3- butadiene dimer, 4-isoprene dimer, 5-6 PPD, 6-Hydrocarbon oil.
Image B: Mass spectrum of antioxidant 6-PPD

***Image courtesy-jsb group

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