Colored Hybrid Nanoparticles via Phyllosilicate Adsorption
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Solution Overview
Problem
Existing methods for creating colored silicate particles with stable and modifiable coloring properties are inefficient, often requiring complex and costly processes, and result in low-intensity coloration due to the degradation of organic compounds and poor adsorption capabilities of micrometric phyllosilicates.
Innovation Solution
A method involving the contact of colored organic charged molecules with non-swelling phyllosilicate nanoparticles in a monophasic solvent medium, allowing for the irreversible adsorption and stabilization of color, enabling the production of hybrid nanoparticles with adjustable color intensity and hue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If covalent bonding is used to attach colored organic molecules to particles, then the coloring is stable, but the process becomes complicated and expensive
Solution Approach 1:
The patent uses nanoparticulate phyllosilicates as an intermediary carrier between the colored organic molecules and the final polymer matrix. The silicates adsorb the charged organic molecules through electrostatic interactions, creating a stable composite that can then be easily incorporated into polymers without requiring complex covalent bonding procedures. This intermediary approach simplifies the overall process while maintaining coloring stability.
2Productivity
If natural talc is ground into fine particles, then it becomes useful as a filler, but the color is irreparably lost
Solution Approach 1:
The patent changes the particle size parameter of the phyllosilicates to the nanometric scale (1-100 nm thickness), which fundamentally alters the relationship between particle processing and color retention. At this nanoscale, the particles can be processed into fine fillers while the color intensity is enhanced rather than reduced, reversing the traditional size-color relationship observed in micrometric particles.
Solution Approach 2:
The patent creates an organic-inorganic hybrid composite where colored organic molecules are adsorbed on nanoparticulate phyllosilicates. This composite structure combines the filler properties of the silicates with the coloring properties of the organic molecules, allowing the material to function both as a useful fine particle filler and as an intense pigment simultaneously.
3Ease of operation
If micrometric phyllosilicates are used for adsorption, then they are easily handled, but adsorption capacity is poor
Solution Approach 1:
The patent changes the size parameter from micrometric to nanometric scale, which fundamentally alters the adsorption capacity. The nanometric particles (1-100 nm thickness) provide dramatically increased surface area and edge sites that enhance adsorption of charged organic molecules by several orders of magnitude compared to micrometric particles, while remaining processable in standard equipment.
4Illumination intensity
If organic colored compounds are used, then intense coloring is achieved, but they degrade under implementation conditions
Solution Approach 1:
The patent creates a composite material where colored organic molecules are adsorbed on nanoparticulate phyllosilicates. The inorganic silicate framework provides chemical stability and protection to the organic coloring agents, while the organic molecules provide intense coloration. This composite structure allows the organic dyes to function at full intensity without undergoing the degradation that would normally limit their practical application.
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 method achieves durable and stable coloration with high adsorption capacity, producing nanoparticles that can be used as both functional fillers and pigments, suitable for various applications including cosmetics, paints, and biological marking, with enhanced chemical diversity and industrial compatibility.
Implementation Method 1
charged organic colored molecules may be partially adsorbed on micron sized phyllosilicates
Implementation Method 2
The coloring molecules used in this document are metal cations. Metal salts of transition metals adsorbed on nanometric phyllosilicates give them a coloring
Implementation Method 3
The creation of strong interactions between organic and inorganic compounds allows a long-term immobilization of organic species on inorganic compounds, providing the organic species with the structural order of the inorganic compounds
Data Source
AI summary
A method for preparing an organic/inorganic hybrid composition including mineral nanoparticles functionalized by at least one molecule chosen from colored charged organic molecules, this method including providing a solution (a) of at least one colored charged organic molecule, providing a suspension (b) of non-swelling phyllosilicate nanoparticles, contacting the solution (a) and the suspension (b), the non-swelling phyllosilicate nanoparticles having a thickness of 1 nm to 100 nm, and a larger dimension of 10 nm to 10 μm. A composition of organic/inorganic hybrid colored nanoparticles obtained by this method is also disclosed.