Carbon Nanomaterial Coating Composition for Low-Temperature Drying
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Solution Overview
Problem
Conventional coating solutions for carbon nanomaterials are costly and require high-temperature drying, which increases time and expenses, and they often use ionic dispersants that may not be as effective as polymer-based dispersants.
Innovation Solution
A composition comprising a bipolar compound, a polyvinyl dispersant, and a solvent is used to coat carbon nanomaterials, which includes mixing the dispersion with a material to be coated and then drying at a lower temperature, reducing coating time and cost while improving dispersing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional coating solutions are used, then coating effectiveness is achieved, but drying temperature must be high and time is long
Solution Approach 1:
The patent changes the chemical parameters of the dispersant system by using bipolar compounds with specific functional groups (carboxyl, hydroxyl, amino groups) that can interact with both polar and non-polar regions. This parameter change in dispersant chemistry enables effective coating formation at lower drying temperatures, directly resolving the contradiction between drying temperature and drying time
2Ease of manufacture
If ionic dispersants are used, then dispersing capability is provided, but coating cost increases
Solution Approach 1:
The patent employs composite dispersant systems combining bipolar compounds with specific functional groups that provide both steric and electrostatic stabilization. This composite approach achieves reliable dispersing effectiveness while using cost-effective molecular structures, resolving the contradiction between manufacturing cost and dispersing reliability
3Reliability
If polyvinyl dispersant is used, then dispersing efficiency is enhanced, but formulation complexity increases
Solution Approach 1:
The patent applies local quality by designing bipolar compounds with specific functional groups positioned at molecular ends or specific regions. These localized functional groups provide targeted interaction with carbon nanomaterial surfaces while keeping the overall molecular structure relatively simple, thus enhancing dispersing efficiency without proportionally increasing formulation complexity
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 allows for rapid coating of carbon nanomaterials at lower temperatures, reducing costs and time, and enhances the dispersing effect using polymer-based dispersants, resulting in improved coating efficiency and reduced material costs.
Implementation Method 1
mixing the carbon nanomaterial dispersion comprising a carbon nanomaterial, a polyvinyl dispersant, a polyamine dispersant and a solvent, with a material to be coated, to adsorb the carbon nanomaterial on the surface of the material to be coated
Implementation Method 2
a composition for coating a carbon nanomaterial, comprising a bipolar compound, a polyvinyl dispersant, and a solvent
Implementation Method 3
adding a composition for coating a carbon nanomaterial of any one of claims 1 to 12 to coat the carbon nanomaterial on the surface of the material to be coated
Implementation Method 4
drying the material to be coated
Data Source
AI summary
The present invention relates to a composition for coating a carbon nanomaterial, comprising a bipolar compound, an amine-based dispersant, and a solvent. Unlike conventional coating solutions using an ionic dispersant, the composition for coating a carbon nanomaterial of the present invention is used together with a polymer-based dispersant to reduce the cost incurred during the coating, and the coating is completed within minutes, thereby reducing the coating time. In addition, unlike the conventional coating solutions that require drying at a temperature of 150° C. or higher, the coating composition of the present invention can be dried at a low temperature, which can save time and cost required for coating.