Ethoxylated Ether Amine Emulsifier for Stable Low-Foaming Metalworking Fluids
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Solution Overview
Problem
Current metalworking fluids face challenges in achieving stable, low-foaming, and environmentally friendly aqueous emulsions with effective lubrication and corrosion inhibition, particularly in metalworking processes.
Innovation Solution
A water-miscible lubricating oil concentrate comprising an ethoxylated ether amine and a base oil, which forms a stable, low-foaming aqueous emulsion with improved wetting properties when added to an aqueous medium, suitable for various applications including metalworking and cleaning fluids.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If conventional emulsifiers are used to prepare aqueous emulsions, then emulsion formation is achieved, but emulsion stability and clarity under operating conditions deteriorate
Solution Approach 1:
The patent modifies the chemical structure of the emulsifier by introducing specific functional groups (carboxyl, hydroxyl, or amine groups) at defined positions in the molecule, and by controlling the ratio of hydrophobic to hydrophilic segments. This parameter optimization enables the emulsion to maintain both stability and clarity under operating conditions, resolving the contradiction between emulsion formation and emulsion quality maintenance.
2Stability of the object's composition
If conventional emulsifiers are used to prepare aqueous emulsions, then emulsion formation is achieved, but foaming increases
Solution Approach 1:
The patent extracts and eliminates the foaming-causing components from the emulsifier system by selecting specific molecular structures that do not promote foam formation. The emulsifier is designed with a balanced hydrophobic-hydrophilic character that prevents air entrapment and foam stability, thereby resolving the contradiction between achieving emulsion formation and preventing harmful foaming.
3Ease of operation
If conventional emulsifiers are used, then lubrication is provided, but corrosion inhibition deteriorates
Solution Approach 1:
The patent employs a composite emulsifier structure that integrates multiple functional groups (carboxyl, hydroxyl, amine) within a single molecular framework. This composite molecular design enables the emulsifier to simultaneously provide lubrication through its hydrophobic segments and corrosion inhibition through its hydrophilic functional groups, resolving the contradiction between lubrication performance and corrosion protection.
4Ease of operation
If base oil is used in high concentrations, then lubrication is improved, but environmental friendliness and worker safety worsen
Solution Approach 1:
The patent optimizes the concentration parameters of base oil in the emulsion formulation, achieving effective lubrication at reduced base oil concentrations by enhancing the emulsifier's efficiency. This parameter optimization lowers the environmental and safety risks associated with high base oil concentrations while maintaining lubrication performance, resolving the contradiction between lubrication quality and environmental/ safety considerations.
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 combination of ethoxylated ether amine and base oil in the lubricating oil concentrate results in a stable, low-foaming aqueous emulsion with enhanced wetting properties and non-ferrous metal protection, addressing environmental concerns and operational efficiency in metalworking processes.
Implementation Method 1
a water-miscible lubricating oil concentrate which contains (i) an ethoxylated ether amine having the formula (I)... and (ii) a base oil... forms a stable, low-foaming aqueous emulsion
Implementation Method 2
an ethoxylated ether amine useful in preparing water-miscible concentrates of lubricating oils... with improved wetting properties
Data Source
AI summary
The present disclosure provides a lubricating oil concentrate containing an ethoxylated ether amine and a base oil. The lubricating oil concentrate is capable of forming a stable, low foaming emulsion when added to an aqueous medium and may be useful in metalworking and cleaning fluids.