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Information Seminar Paper

Title

EFFECT OF OIL ON THE STABILITY OF BULK FOAM

Pages

 Start Page | End Page

Abstract

 THIS PAPER REPORTS A SYSTEMATIC LABORATORY STUDY OF FOAMABILITY AND FOAM STABILITY IN THE PRESENCE OF ALKANE-TYPE OILS FOR C14-16 ALPHA OLEFIN SULFONATE (AOS) SURFACTANT. AOS SURFACTANT EXHIBITED A GOOD FOAMABILITY DESPITE THE VARIATION OF CARBON CHAIN LENGTH OF THE ALKANES. DECAY OF AOS FOAM WAS CHARACTERIZED BY TWO MAIN STAGES: FIRST A RATHER SMALL AND RAPID REDUCTION IN FOAM VOLUME AT EARLY TIMES FOLLOWED BY A STABILIZED VALUE, AND THEN A SECOND REDUCTION BY WHICH FOAM VOLUME DECREASED CONTINUOUSLY OVER A RELATIVELY LONG TIME TO REACH A FINITE VOLUME. EFFECT OF OIL WAS MORE PRONOUNCED DURING THE SECOND FOAM DECAY. AOS FOAM IN THE PRESENCE OF ALKANE WITH A SHORTER CARBON CHAIN ENTERED THE SECOND DECAY EARLIER AND EXHIBITED THE LEAST FOAM STABILITY. THE OBTAINED RESULTS FOR FOAM STABILITY IN THE PRESENCE OF OIL WERE FURTHER DISCUSSED USING THE CLASSICAL ENTERING, SPREADING AND BRIDGING COEFFICIENTS.

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