Surfactant-Charged Nanoparticle Mixing for Homogeneous Solids
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Solution Overview
Problem
Current methods face challenges in homogeneously mixing solid-phase nanomaterials at the nanoscale, leading to issues like solid aggregation and phase separation, which limits their application in various industries such as composites, energy, and electronics.
Innovation Solution
A method involving the use of a surfactant with a specific charge to attract and uniformly distribute two nanoparticle materials in a fluid medium, allowing for the formation of a homogeneous solid material that can be further processed into various forms like films, 3D structures, or fibers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If solid-phase nanomaterials are mixed directly, then manufacturing simplicity is maintained, but homogeneity and uniform distribution deteriorate due to aggregation and phase separation
Solution Approach 1:
The patent introduces a liquid medium as an intermediary substance to facilitate the mixing of solid-phase nanomaterials. The liquid medium allows nanoparticles to disperse uniformly without direct solid-solid contact, preventing aggregation and phase separation. After mixing, the liquid medium is removed, leaving a homogeneous solid mixture. This intermediary approach resolves the contradiction by enabling high homogeneity while maintaining relatively simple processing steps.
Solution Approach 2:
The patent changes the physical state parameter of the mixing environment from solid-phase to liquid-phase. By transforming the mixing medium from solid to liquid, the patent enables better distribution and uniformity of nanomaterials. The liquid medium provides流动性 that facilitates homogeneous mixing, and subsequent removal of the liquid returns the system to solid-phase for final application.
2Manufacturing precision
If nanomaterials are kept in solution form, then homogeneity is improved, but application versatility and solid-form functionality deteriorate
Solution Approach 1:
The patent performs preliminary mixing in the liquid phase where homogeneity can be easily achieved, then removes the liquid medium to obtain a homogeneous solid mixture. This preliminary liquid-phase mixing action allows uniform distribution of nanomaterials, and the subsequent removal of liquid enables the material to be used in solid-form applications across various industries.
Solution Approach 2:
The patent utilizes phase transition from liquid to solid by removing the liquid medium after mixing. The mixture transitions from a liquid suspension (where homogeneity is maintained) to a solid mixture (where it can be applied in various solid-form applications). This phase transition resolves the contradiction by enabling both uniform distribution and broad application versatility.
3Productivity
If conventional mixing methods are used, then process simplicity is maintained, but mixing effectiveness and homogeneity deteriorate
Solution Approach 1:
The patent employs liquid medium (hydraulic approach) to achieve effective mixing of nanomaterials. The liquid medium provides流动性 and enables uniform distribution through simple stirring or mixing operations. This hydraulic mixing method dramatically improves mixing effectiveness compared to conventional solid-phase mixing, while the liquid medium can be easily removed, keeping the overall process relatively simple.
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
This approach enables the creation of multi-functional materials with enhanced properties, expanding design spaces for nanomaterial applications across diverse industries by ensuring uniform distribution and preventing aggregation.
Implementation Method 1
the surfactant has a first charge and causes the first nanoparticle material to distribute uniformly in the fluid medium; adding, to the fluid medium, a second nanoparticle material, wherein the surfactant the first charge is of opposite polarity to the zeta potential of the second nanoparticle material; attaching the second nanoparticle material to the first nanoparticle material using the charge attraction of the surfactant and the second nanoparticle material
Data Source
AI summary
Disclosed herein is a method of homogeneously mixing solids, comprising: mixing, in a fluid medium, at least a first nanoparticle material and a surfactant, wherein the surfactant causes the first nanoparticle material to distribute uniformly in the fluid medium and have a specific charge; adding, to the fluid medium, a second nanoparticle material, wherein the surfactant has a charge of opposite polarity to the zeta potential of the second nanoparticle material; attaching the second nanoparticle material to the first nanoparticle material using the charge attraction of the surfactant and the second nanoparticle material to obtain a homogeneous material; and removing the attached first and second nanoparticle materials from the fluid medium to obtain a solid homogeneous material.