Technical Paper Archive


This site contains all papers presented at Rubber Division, ACS Technical Meetings from 2000-2018. Meetings prior to 2000 are incomplete and papers are added as they are digitized.


For older papers not listed here, please send your request, including Meeting Year, Title, Author, and Paper # to: cbrady@rubber.org


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CARBON BLACK DISPERSION MEASUREMENT IN RUBBER VULCANIZATES VIA INTERFEROMETRIC MICROSCOPY

16

Event: 164th Technical Meeting
Location: Cleveland, OH
Date: October 14, 2003
Author: Archie P. Smith*, Toni L. Aybar, Ricky W. Magee, Charles R. Herd
Paper Number: 16

Price: $20.00

  • A new method for characterizing the carbon black dispersion in rubber compounds is introduced. This technique is based on interferometric microscopy (IFM) and utilizes the interference fringes between in-phase light beams reflected from the rubber sample and a smooth reference surface to measure the three-dimensional surface topography. The peaks and valleys present are representative of the carbon black agglomerates and are used to characterize the dispersion. A series of samples with different base rubbers and varying dispersion levels were created and characterized by both light microscopy and IFM. These results were used to generate a universal dispersion index equation based on the IFM data that correlates well with the LM dispersion index values. In addition, three-dimensional peak statistics were obtained from the IFM data and used to provide additional information about the carbon black agglomerate distribution. This data can be used for a more complete understanding of the compound behavior as a function of the carbon black dispersion and agglomerate distribution.

    Papers from 164th Technical Meeting

    Items from 164th Technical Meeting