Polishing Composition Surfactant Prevents Resin Cloudiness
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Solution Overview
Problem
Conventional buffing processing using polishing compositions often leaves white cloudiness on the surface of resin coating films, which is difficult to remove and requires rework, especially when there is a time interval before wiping off.
Innovation Solution
A polishing composition containing abrasives, a hydrophobic dispersion medium, water, and a surfactant with polyoxyethylene alkyl ether, which suppresses the sticking of components to the surface, reducing cloudiness and improving gloss retention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional polishing composition is used, then polishing function is achieved, but white cloudiness is left on the surface after time interval
Solution Approach 1:
The patent changes the chemical parameters of the polishing composition by specifying a particular surfactant (polyoxyethylene alkyl ether with Formula (i) where R is a branched-chain alkyl group with 12-20 carbon atoms and n is 3-50) and a hydrophobic dispersion medium. This parameter change prevents the sticking of polishing composition components to the resin coating film surface, thereby preventing white cloudiness formation while maintaining polishing effectiveness.
2Duration of action of stationary object
If polishing composition stays on surface for time interval, then gloss is maintained, but components stick to surface causing cloudiness
Solution Approach 1:
The patent introduces a specific surfactant (polyoxyethylene alkyl ether) as an intermediary substance between the polishing composition and the resin coating film surface. This intermediary prevents the harmful sticking of polishing composition components to the surface, allowing the composition to remain on the surface for extended periods without causing white cloudiness.
3Ease of operation
If conventional surfactant is used, then polishing composition spreads, but cloudiness remains after cleaning
Solution Approach 1:
The patent specifies precise parameters for the surfactant (polyoxyethylene alkyl ether with Formula (i), where R is a branched-chain alkyl group with 12-20 carbon atoms and n is 3-50) to achieve optimal balance between spreading capability and ease of removal. This parameter optimization ensures the polishing composition applies smoothly while preventing persistent cloudiness after cleaning.
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 effectively prevents cloudiness and maintains surface gloss even after a time interval, reducing the need for rework and improving polishing efficiency.
Implementation Method 1
The surfactant contains polyoxyethylene alkyl ether represented by Formula (i) RO—(C2H4O)n—H
Implementation Method 2
a hydrophobic dispersion medium
Data Source
AI summary
There are provided a polishing composition less likely to leave cloudiness on the surface of an object to be polished even when there is a time interval before wiping-off, a method for producing the same, and a polishing method.A polishing composition contains abrasives, a hydrophobic dispersion medium, water, and a surfactant. The surfactant contains polyoxyethylene alkyl ether represented by Formula (i) RO—(C2H4O)n—H. In Formula (i), R is a branched-chain alkyl group having a number of carbon atoms of 12 or more and 20 or less, and n represents the average number of added moles of oxyethylene and is 3 or more and 50 or less.