Measurement of carbon black dispersion

Details Measurement of carbon black dispersion Measurement of carbon black dispersion

1979-03-26

1980-09-02

Swisher, S. Clement

Measuring and testing

Coating material: ink adhesive and/or plastic

G01N 1908, G01N 3334

Patent

active

042200423

ABSTRACT:
A method is disclosed for determining the dispersion of carbon black in elastomeric slabs by cutting a slab to form a planar surface and moving a height measuring transducer stylus over the planar surface. The transducer stylus provides an output current at a voltage which varies in correspondence to the relative height of roughness peaks on the planar surface. Accordingly, the size of the peaks determines the size of carbon black agglomerates and the frequency of peaks for a predetermined range of height is determinative of percent dispersion of the carbon black.

REFERENCES:
patent: 2373104 (1945-04-01), Dieffenbach
patent: 2688532 (1954-09-01), Till et al.
patent: 3329011 (1967-07-01), Dereng
patent: 4103542 (1978-08-01), Wheeler

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