Abstract
The authors present an account of experiments to determine the effect of polyacrylamide additives on the breaking tension of water. Firstly, a new strain-gauge method for measuring the static breaking tension of a liquid enclosed in a stainless steel Berthelot tube is described. Secondly, the results obtained for the static breaking tensions of dilute polyacrylamide solutions are reported. Thirdly, the results found for the dynamic breaking tensions of these solutions are also given. It is found that the presence of the polymer additive in the water makes no different to the values of the static breaking tension but leads to a reduction in the values of the dynamic breaking tension.
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