SUBJECT: Polymer Identification on one material.
RECEIVED: One bag of light purple powder labeled “ABS Masterbatch”
POLYMER IDENTIFICATION ASTM D 3677-00 (2004)

Instrument: Perkin-Ekmer Clarus 500 Gas Chromatograph with a

Clarus 560D Mass Spectrometer

Accessory: CDS Analytical Pyroprobe 5000 Series

Column: Forte BPX5 GC Capillary Column

RESULTS:
SAMPLE

Poly I.D.

ABS Masterbatch
Acrylonitrile – Butadiene Styrene
Polyethylene

DISCUSSION :

An analysis of the resulting Chromatogram and comparison to the established NIST Library gives the following matches :

Time (min) Compound

2.32 1,3 – Butadiene

3.25 Acrylonitrile

9.74 Butadiene

11.35 Styrene

All of these represent indicator peaks for Acrylonitrile-Butadiene Styrene (ABS)
Chromatograms also matched the following :

Time(min) Compound

3.99 1-hexene

5.91 1-heptene

8.33 1-octene

10.87 1-nonene

13.33 1-decene

15.63 1-undecene

All of these represent indicator peaks for Polyethylene

As this was going to be a basic Polymer Identification, the instruments used were set up for qualification (identification) and not for quantification (%), however our estimate from analyzing the peaks from the Pyrolysis GC-MS is ABS with approximately 6 – 8 % polyethylene, with polyethylene most likely being the carrier for the purple color concentrate.