Material Development for Improved Rubber Track Pads.
ROCK ISLAND ARSENAL IL GENERAL THOMAS J RODMAN LAB
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Various reinforcement agents other than or in addition to carbon black were evaluated in efforts to improve the wear resistance of rubber compounds for potential use as track pads. These included Hi-Sil precipitated silica, lignin-rubber latex coprecipitates, 34-inch fiber wire, and brass-plated and low-carbon electrogalvanized wire cloth. The addition of wire cloth significantly improved the resistance to heat buildup of vulcanizates. Service test results after 384 miles on a cross-country course at Yuma Proving Ground indicate, however, that the addition of wire cloth has an adverse effect on the wear resistance of T142 track pads based on these elastomers. Delamination of the pads occurred in the area of the wire which resulted in excessive chunking and tearing of the pads, and in premature loss of rubber. Excellent rubber-to-metal vulcanization bonding systems have been found for all the experimental compounds used in preparing T142 pads for service testing.
- Elastomers and Rubber
- Combat Vehicles