Container Lining Coating for Residue Peeling
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Solution Overview
Problem
The internal cleaning of containers such as tanks, tankers, and tank cars is labor-intensive due to solidified and aged product residues strongly adhering to the surfaces, requiring complex mechanical cleaning or high-pressure water jetting.
Innovation Solution
A coating agent composition comprising a binder component with poly(oxyalkylene) glycol, aromatic diamine, silicone elastomer particles, and polyurethane urea, and a curing component with nonblocked isocyanate groups, applied to the internal surfaces of containers, allowing easy peeling and removal of residues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the internal surface of containers is left uncoated, then products can be stored directly, but product residues strongly adhere to the surface requiring complex mechanical cleaning or high-pressure water jetting
Solution Approach 1:
A coating layer composed of silicone elastomer particles embedded in a polyurethane matrix is applied as an intermediary between the container surface and product residues. This intermediate layer prevents direct adhesion of residues to the container, allowing easy removal by peeling without complex mechanical cleaning equipment
Solution Approach 2:
The coating forms a flexible thin film containing silicone elastomer particles that can be easily peeled off from the container surface. This flexible film structure enables simple manual removal of the coating along with adhered residues, eliminating the need for high-pressure water jetting or complex mechanical cleaning systems
2Productivity
If complex mechanical cleaning or high-pressure water jetting is used to remove residues, then cleaning effectiveness is improved, but labor time and effort increase significantly
Solution Approach 1:
The coating is designed as a disposable protective layer that is applied before product storage and then peeled off during cleaning. Instead of investing in expensive, time-consuming cleaning equipment and processes, a simple disposable coating provides effective cleaning with minimal labor and time investment
Solution Approach 2:
The coating is applied in advance before product storage, creating a protective barrier that prevents residue adhesion. This preliminary protective action eliminates the need for subsequent complex cleaning operations, significantly reducing both cleaning time and labor requirements
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 coating prevents residues from adhering to the container surfaces, enabling easy and residue-free removal, simplifying the cleaning process and reducing effort and time required for maintenance.
Implementation Method 1
The coating agent composition comprises at least one binder component A and at least one curing component B, where the binder component A comprises polyol component, aromatic diamine, silicone elastomer particles, and polyurethane urea
Implementation Method 2
the curing component B comprising at least one urethane group-containing component comprising nonblocked isocyanate groups and at least one aromatic diisocyanate from methylenedi(phenyl isocyanate), the curing component B having an amount of nonblocked isocyanate groups of 10 to 30 wt %
Implementation Method 3
The coatings produced by means of the coating composition on the internal surface of containers have particularly high chemical resistance and also easy peelability from the coated surface
Data Source
AI summary
The invention relates to the use of a coating agent composition for lining containers as well as a method for cleaning a container that has a corresponding lining and in which at least one product has been stored and/or transported.