Surfactant Composition Stabilization via Amphoteric Mediator
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Solution Overview
Problem
High concentration internal olefin sulfonates used in detergents face challenges with increased viscosity and phase separation, leading to poor storage stability and fluidity, which complicates handling and storage.
Innovation Solution
A surfactant composition comprising 63.0% to 70.0% internal olefin sulfonate with 16 to 18 carbon atoms and 0.2% to 1.8% amphoteric surfactant, combined with water, to maintain high fluidity and storage stability by reducing micelle phase formation and stabilizing the lamellar phase.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the concentration of internal olefin sulfonate is increased to improve formulation freedom and handling, then productivity and formulation flexibility are improved, but viscosity increases and storage stability deteriorates
Solution Approach 1:
A specific additive comprising a hydroxy compound with 12-20 carbon atoms is introduced as an intermediary substance to mediate between the internal olefin sulfonate molecules. This additive prevents excessive micelle formation and stabilizes the lamellar phase, thereby maintaining storage stability even at high surfactant concentrations of 63-70% by mass.
Solution Approach 2:
The invention changes the chemical composition parameters by precisely controlling the carbon atom number (12-20) of the hydroxy compound and its concentration (0.1-5% by mass relative to total composition). This parameter optimization allows the system to maintain low viscosity and high stability simultaneously at high internal olefin sulfonate concentrations.
2Reliability
If the concentration of internal olefin sulfonate is increased to enhance foamability and detergency, then cleaning performance is improved, but phase separation occurs and storage stability is degraded
Solution Approach 1:
The hydroxy compound acts as a mediator that interferes with the excessive aggregation of internal olefin sulfonate molecules into large micelles. By controlling micelle formation through this intermediary, the system maintains homogeneous composition without phase separation even at high concentrations that provide excellent foamability and detergency.
Solution Approach 2:
The invention creates a composite surfactant system combining internal olefin sulfonate (63-70% by mass) with a specific hydroxy compound additive. This composite composition leverages the synergistic effect where the hydroxy compound modifies the micellar structure, preventing phase separation while preserving the superior cleaning performance of high-concentration internal olefin sulfonate.
3Reliability
If the concentration of internal olefin sulfonate is increased to improve foamability, then cleaning performance is enhanced, but viscosity increases and fluidity is degraded
Solution Approach 1:
By optimizing the carbon atom number of the hydroxy compound to 12-20 and controlling its concentration at 0.1-5% by mass, the invention modifies the physical parameters of the surfactant system. This parameter control prevents excessive viscosity increase and maintains fluidity even at high internal olefin sulfonate concentrations that provide excellent foamability.
Solution Approach 2:
The hydroxy compound serves as a fluidity-enhancing intermediary that interacts with internal olefin sulfonate molecules to prevent the formation of large, viscous micellar structures. This intermediary maintains low viscosity and high fluidity, enabling easy handling and application while preserving the high foamability benefits of concentrated surfactant formulation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The composition achieves excellent foamability, detergency, and storage stability across a wide temperature range, enhancing the usability of the surfactant in various detergents while maintaining high fluidity and stability.
Implementation Method 1
a specific amount of an amphoteric surfactant is used in combination, and these ingredients are made to have a specific total content
Implementation Method 2
stabilizing the lamellar phase
Data Source
AI summary
Provided is a surfactant composition capable of ensuring high fluidity and excellent storage stability while containing a high amount of an internal olefin sulfonate having 16 or more and 18 or less carbon atoms. The present invention relates to a surfactant composition comprising the following components (A), (B), and (C): (A) 63.0% by mass or more and 70.0% by mass or less of an internal olefin sulfonate having 16 or more and 18 or less carbon atoms, (B) 0.2% by mass or more and 1.8% by mass or less of an amphoteric surfactant, and (C) water, in which the total content of the component (A) and the component (B) is 64.0% by mass or more and 70.8% by mass or less.