Silver Nanowire Polymer Compound for Drifting Prevention
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Solution Overview
Problem
Existing conductive silver colloids with nano-sized silver particles face challenges in achieving uniform dispersion and preventing silver drifting, which can damage electronic devices, and require additional carbon layers that increase costs and complexity.
Innovation Solution
A compound of silver nanowires with polymer, where a dispersant with functional groups copolymerizes with the resin to form a colloidal polymer, effectively dispersing and stabilizing silver nanowires, preventing drifting, and enhancing conductivity and wearability without the need for extra carbon layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a layer of carbon colloid is disposed on the film switch to isolate the mist and avoid silver particles being oxidized or drifted, then the harmful effect of silver drifting is reduced, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent introduces a dispersant as an intermediary substance that mediates between the silver particles and the resin matrix. The dispersant contains functional groups that chemically interact with silver particles to prevent drifting, eliminating the need for additional carbon colloid protective layers while maintaining the beneficial effect of preventing silver oxidation and drifting.
Solution Approach 2:
The patent combines the functions of dispersion, adhesion, and anti-drifting protection into a single dispersant component. This merging of multiple functions into one substance simplifies the overall structure by eliminating separate protective layers, reducing device complexity while still protecting against silver drifting.
2Reliability
If nano-sized silver particles are doped in a resin to decrease resistivity and improve film circuit quality, then the electrical conductivity is improved, but the uniform dispersion of silver particles becomes difficult to achieve
Solution Approach 1:
The dispersant acts as an intermediary between nano-sized silver particles and the resin matrix. Its functional groups interact with silver particles to improve their wettability and compatibility with the resin, enabling uniform dispersion while maintaining the high electrical conductivity provided by the nano-sized particles.
Solution Approach 2:
The patent changes the surface properties of silver particles by introducing dispersant molecules with specific functional groups. This modifies the surface energy and chemical characteristics of the particles, transforming them from a state that aggregates to a state that disperses uniformly in the resin matrix, while preserving their nano-sized dimensions and conductivity.
3Reliability
If nanowires are doped in a resin to lengthen the conducting path length and increase conductivity, then the electrical conductivity is improved, but the silver nanowires are prone to drifting under electric field
Solution Approach 1:
The dispersant serves as a mediator that chemically bonds to the surface of silver nanowires through its functional groups. This creates a stable interface that anchors the nanowires in place, preventing them from drifting under electric field while preserving their long conducting path length and high conductivity benefits.
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 compound achieves higher conductivity with lower silver content, improved wearability, and extended device lifetime by stabilizing silver nanowires within the polymer matrix, reducing material usage and manufacturing costs.
Implementation Method 1
the dispersant monomer of the dispersant has at least a functional group, and the dispersant copolymerizes with the colloid to form a colloidal polymer
Implementation Method 2
the functional groups of the dispersant monomer connect with the metal nanostructures, and the dispersant copolymerizes with the colloid so as to make the metal nanostructures disperse in the colloid by means of the functional groups of the dispersant monomer
Data Source
AI summary
The invention provides a compound of silver nanowire with polymer. The compound comprises a resin, a dispersant, and a plurality of silver nanowires. The dispersant is capable of copolymerizing with the resin. The dispersant has a plurality of functional groups capable of connecting with the silver nanowires respectively. Therefore, the silver nanowires could disperse in the resin by means of the functional groups of the dispersant.