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Guangzhou Scikoon Industry Ltd. Co.
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2024 Technical Program

Surfactants and Detergents

Session: Home & Fabric Care II

Narrow range alcohol ethoxylates for enhanced hard surface cleaning performance

Tuesday, April 30, 2024
8:52 AM – 9:09 AM EDT
Room: 519a
Abstract:

Hard surface cleaning performance includes soil removal, fragrance solubilization and gloss retention of the substrate after cleaning.  The effect of nonionic surfactant structure on hard surface cleaning performance has been investigated.  Soil removal was measured by optical reflectance and image analysis as a function of abrasion cycles to give kinetic curves describing the cleaning process.  Fragrance solubilization was measured by titration using different fragrances.  Gloss retention was measured by reflectance measurements before and after cleaning.  Dynamic interfacial tension between surfactant solution and soil components and fragrance was measured using a drop volume tensiometer and correlated with soil removal.

The effect of alkyl chain length, different kinds of branching, the degree of ethoxyaltion and peaking of the oligomer distribution has been studied.   Different types of alkyl chain structures were studied including linear, C2 monobranched, random chain branching and multiple methyl branched hydrophobes.  The degree of ethoxylation was varied to span a range of HLB values and the oligomer distribution was also peaked using a narrow range alkoxylation catalyst.  In general, narrow range alcohol ethoxylates show lower interfacial tension which correlates with enhanced fragrance solubilization and soil removal.