Solid Particle Surface Functionalization with 1,1-Di-Activated Vinyl Compounds
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Solution Overview
Problem
Solid particles, such as metal oxide particles, face challenges in dispersibility and homogeneity when mixed with resins and solvents, leading to instability in dispersions used in various applications like coatings and plastics.
Innovation Solution
A functionalizing layer is formed on the surface of solid particles using a reaction product of 1,1-di-activated vinyl compounds or their multifunctional forms, improving their dispersibility and stability by enhancing bonding with solvents and resins.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If solid particles are dispersed in resins and solvents, then they can be used in coatings and plastics applications, but their dispersibility and homogeneity are poor leading to instability
Solution Approach 1:
The patent applies parameter changes by modifying the surface chemical properties of solid particles through functionalization with silane compounds. This changes the surface energy and chemical composition parameters, enabling better compatibility with resin and solvent matrices, thereby improving dispersibility and stabilizing the dispersion without compromising homogeneity
Solution Approach 2:
The patent creates a composite structure on the particle surface by forming a functionalizing layer through reaction of silane compounds with surface hydroxyl groups. This composite approach combines the inorganic core particle with an organic-functionalized surface layer, achieving both improved dispersibility in organic/aqueous media and enhanced stability while maintaining composition homogeneity
2Adaptability or versatility
If solid particles are mixed with resins and solvents, then they can be applied in various industries, but their dispersibility is poor leading to inhomogeneous mixtures
Solution Approach 1:
The patent modifies surface chemical parameters by introducing functional groups (such as alkoxy, hydroxyl, or other reactive groups) through silane functionalization. This parameter change enables the particles to adapt to different resin and solvent systems, enhancing versatility for coatings and plastics applications while ensuring homogeneous mixing through improved interfacial compatibility
Solution Approach 2:
The functionalizing silane layer acts as an intermediary between the inorganic particle core and the organic/aqueous matrix. This intermediary layer provides chemical bridges that facilitate uniform dispersion and homogeneous mixing, enabling broad applicability across different industrial formulations without compromising mixture homogeneity
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 functionalizing layer enhances the dispersibility and stability of solid particles in solvents and resins, leading to improved performance in coatings and plastics applications.
Implementation Method 1
The functionalizing layer comprises a reaction product of a 1,1-di-activated vinyl compound
Data Source
AI summary
Compositions having solid core particles with functionalizing layers over at least a portion of the outer surfaces of the solid core particles are described. The functionalizing layers are formed from a reaction product of a 1,1-di-activated vinyl compound, or a multifunctional form thereof, or a combination thereof.