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Preparation of brittle thermoset specimens for surface characterization by contact angles
Author(s) -
Bystry F. A.,
Penn L. S.
Publication year - 1983
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.740050304
Subject(s) - thermosetting polymer , contact angle , materials science , wetting , composite material , brittleness , coating , characterization (materials science) , wilhelmy plate , nanotechnology
A convenient and accurate method for surface analysis by contact angle studies is described. The specimen developed is particularly useful for brittle thermoset materials which must be prepared in a simple regular geometry for wetting force measurement by the Wilhelmy method. The procedure involves dip‐coating wires to make smooth cylindrical specimens of cured thermoset resin for wettability (contact angle) analysis. The results from this type specimen were cross‐checked with cast film specimen results to ensure that measured contact angles were material properties and were not influenced by geometry or presence of wire substrate. Results are presented for some modified and unmodified brittle thermoset resins showing changes in surface energetics.