An experimental study on the relationship between foam crotch and foam stability

Foam stability affects the efficacy and incidence of side effects of foam sclerotherapy. Exploring the relationship between foam pressure difference and foam stability can provide ideas and basis for obtaining more stable foam. In the experiment, sodium cod liver oleate foam was selected, and different concentrations of poloxamer 188 (concentrations of 0%, 4%, 8%, and 12%) were added to realize the change of foam pressure difference. Use the self-written program to process the foam pictures to obtain the foam pressure difference and the relationship between the foam stability indicators (water separation rate curve, half-life) and the foam pressure difference. The results showed that the foam pressure difference in different time periods first increased with the increase of the concentration, and then decreased with the increase of the concentration, and reached a peak at the concentration of 4%. The foam pressure difference decreases continuously with the increase of decay time; when the additive concentrati