Triazine-Based Precursor for Stable Micro-Particulate Complexes
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Solution Overview
Problem
Existing methods for producing micro-particulate complexes with silica particles result in wide particle size distributions and instability, making them unsuitable for cosmetic and medical applications, and contain harmful fluorine compounds.
Innovation Solution
A process involving the preparation of a triazine-based precursor through displacement reactions with specific nucleophilic compounds and solvents, followed by hydrolysis and polycondensation with tetra-alkyl orthosilicate, to form a micro-particulate complex with a core-shell configuration and narrow particle size distribution, free from halogens like fluorine.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If surface treatment agents or fluorinated alkyl silane are used to modify silica particles, then surface functionality is improved, but particle size distribution becomes wide and storage stability deteriorates
Solution Approach 1:
The patent introduces a triazine-based compound as an intermediary surface treatment agent that mediates between the silica particle surface and the desired functional properties. This intermediary compound provides stable surface modification without the self-polymerization issues of fluorinated alkyl silane, achieving both surface functionality and storage stability.
Solution Approach 2:
The patent changes the chemical parameters of the surface treatment agent from fluorinated alkyl silane to triazine-based compounds with specific molecular structures. This parameter change eliminates the harmful self-polymerization reaction while maintaining surface modification capabilities, thereby improving storage stability without sacrificing surface functionality.
2Adaptability or versatility
If fluorinated alkyl silane is used for surface modification, then surface properties are enhanced, but harmful fluorine compounds are introduced
Solution Approach 1:
The patent converts the harmful fluorinated compounds into beneficial non-fluorinated triazine-based compounds. By replacing the fluorine-containing surface treatment agent with a triazine-based alternative, the patent eliminates harmful fluorine compounds while maintaining or enhancing surface properties through the triazine ring structure's unique characteristics.
Solution Approach 2:
The patent uses triazine-based compounds as a safer, non-fluorinated alternative that can be easily applied and does not persist as harmful residues. The triazine-based surface treatment agent provides the necessary surface properties without introducing long-term harmful fluorine compounds into the system.
3Ease of manufacture
If conventional surface treatment agents are used, then surface modification is achieved, but manufacturing precision of particle size deteriorates
Solution Approach 1:
The patent applies preliminary surface modification using triazine-based compounds before silica particle formation. This preliminary action ensures that the surface properties are established prior to particle aggregation, preventing uncontrolled growth and maintaining narrow particle size distribution while achieving the desired surface modification.
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 triazine-based precursor provides a stable micro-particulate complex with a narrow particle size distribution, suitable for medical and cosmetic applications, and emits far infrared radiation, making it safe and effective for use in various products.
Implementation Method 1
subjecting 2-4-6-trichloro-1,3,5-triazine and a first nucleophilic compound represented by a formula of H—X(R1)n to a displacement reaction in the presence of a first solvent at a first temperature range to form an intermediate
Implementation Method 2
subjecting the triazine-based precursor and tetra-alkyl orthosilicate to hydrolysis and polycondensation
Implementation Method 3
subjecting the triazine-based precursor and tetra-alkyl orthosilicate to hydrolysis and polycondensation
Implementation Method 4
a micro-particulate complex containing a far infrared-emissive silica particle
Data Source
AI summary
A process for preparing a triazine-based precursor for producing a micro-particulate complex containing a far infrared-emissive silica particle comprises steps of: a) subjecting 2-4-6-trichloro-1,3,5-triazine and a first nucleophilic compound to a displacement reaction in the presence of a first solvent at a first temperature range to form an intermediate; and b) subjecting the intermediate and a second nucleophilic compound to a further displacement reaction in the presence of a second solvent at a second temperature range higher than the first temperature range.