Method and composition for increasing the electrical and thermal conductivity of a textile article and textile article thus obtained
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Solution Overview
Problem
Existing textile articles lack optimal solutions for simultaneously enhancing both electrical and thermal conductivity, leading to issues with heat dissipation and electrostatic charge accumulation, which can cause discomfort and potential device damage.
Innovation Solution
A composition comprising 10-40% polymeric binder, 1-10% compatibilizing solvent, 0.1-2% thickener, 1-20% graphene nanoplatelets with specific dimensions and C/O ratio, 40-80% water, and 1-40% inorganic pigment is applied directly to the textile as a single layer, followed by heating, to create a synergistic thermal and electrical conductive circuit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single-layer composition is applied directly to the textile, then the manufacturing process is simplified and productivity is improved, but achieving optimal electrical and thermal conductivity simultaneously becomes more difficult
Solution Approach 1:
The patent combines multiple functional components (graphene nanoplatelets for electrical conductivity, inorganic pigments for thermal conductivity, polymeric binder for adhesion) into a single integrated composition that is applied in one layer, merging multiple functions into one application step while achieving both electrical and thermal conductivity enhancement simultaneously
Solution Approach 2:
The invention uses a composite material composition containing graphene nanoplatelets (0-10 μm size), inorganic pigments (metal oxides like TiO2, ZnO, Al2O3), and polymeric binders in specific weight ratios (graphene 0.1-5 wt%, inorganic pigments 1-20 wt%, binder 70-90 wt%) to achieve synergistic electrical and thermal conductivity properties that neither component could provide alone
2Reliability
If graphene and inorganic pigments are used together in a composition, then both electrical and thermal conductivity are enhanced, but the composition complexity increases
Solution Approach 1:
The patent optimizes specific parameters including graphene nanoplatelet size (0.1-10 μm lateral dimensions), inorganic pigment particle size (1-50 μm), weight ratios of components (graphene 0.1-5%, inorganic pigments 1-20%, binder 70-90%), and heating temperature (80-200°C) to achieve the desired conductivity performance while managing composition complexity through controlled parameter ranges
3Reliability
If the textile article is heated to high temperatures for extended periods, then the conductivity of the composition is improved, but energy consumption increases and risk of damage to the textile substrate rises
Solution Approach 1:
The patent optimizes heating parameters to specific ranges (temperature: 80-200°C, time: 1-60 minutes) that are sufficient to achieve the desired conductivity enhancement through controlled evaporation of solvents and curing of the polymeric binder, while avoiding excessive energy consumption and preventing damage to the textile substrate
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 solution effectively increases thermal conductivity to several W/mK and reduces surface resistivity to 10^3-10^4Ω/□, providing efficient heat distribution and electrostatic charge dissipation, while maintaining breathability and comfort.
Implementation Method 1
The composition... provides efficient heat distribution... increases thermal conductivity to several W/mK
Implementation Method 2
reduces surface resistivity to 10^3-10^4Ω/□, providing efficient heat distribution and electrostatic charge dissipation
Implementation Method 3
followed by heating, to create a synergistic thermal and electrical conductive circuit
Data Source
AI summary
Method and composition for increasing the electrical and thermal conductivity of a textile article comprising the application of a composition comprising graphene and an inorganic pigment, so as to form a layer that consists of a thermal circuit for optimal management of heat and an electrical circuit for dissipation of the static electricity accumulated on the textile article.