Solid Dispersion Stabilizing Dispersoids in Polyols
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing dispersion compositions face challenges in stabilizing isotropic and anisotropic materials, leading to agglomeration and settling issues during storage, which affect productivity and product quality, especially when used in polyurethane and epoxy resin applications, requiring additional processes and surfactants.
Innovation Solution
A solid dispersion using isotropic and/or anisotropic materials dispersed in a non-aqueous medium at room temperature, such as polyol and sugar, which prevents agglomeration and settling, allowing for improved storage stability and work efficiency without the need for separate dispersants or surfactants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a dispersion composition using water as a dispersion medium is applied to polyurethane resins and epoxy resins, then the dispersoid can be dispersed in the resin, but an additional process of manufacturing a master batch of water and polyol or a master batch of water and epoxy is required and a surfactant is needed to prevent agglomeration of dispersoids
Solution Approach 1:
The patent changes the dispersion medium from water to a non-aqueous medium (polyol or epoxy resin) that is solid at room temperature. This parameter change eliminates the need for separate dispersants and surfactants, and removes the requirement for additional master batch manufacturing processes, thereby simplifying the overall process while maintaining dispersion stability
Solution Approach 2:
The invention creates a composite solid dispersion system where the dispersoid is dispersed in a non-aqueous dispersion medium that is solid at room temperature. This composite structure inherently prevents agglomeration without requiring additional surfactants or dispersants, and the solid state allows for easy storage and handling
2Manufacturing precision
If the dispersoid is miniaturized to improve processing properties and product properties, then the quality and productivity are improved, but it becomes difficult to stabilize the dispersoid, leading to agglomeration and settling
Solution Approach 1:
The non-aqueous dispersion medium (polyol or epoxy resin) acts as an intermediary between the miniaturized dispersoid particles and the final product. This medium provides a stable environment for the fine particles, preventing them from agglomerating or settling while maintaining the benefits of miniaturization for processing and product quality
Solution Approach 2:
The patent changes the physical state of the dispersion system to solid at room temperature while maintaining the miniaturized particle size. This parameter change in the dispersion medium's state of matter provides enhanced stability to the dispersoid, preventing agglomeration and settling that typically occur with miniaturized particles in liquid dispersions
3Stability of the object's composition
If a dispersant is used to suppress aggregation and settling of dispersoids, then dispersion stabilization is achieved, but the dispersant cannot sufficiently meet the required characteristics for diversification of dispersoid and dispersion medium, micronization of particle size, and high quality of final product
Solution Approach 1:
The non-aqueous dispersion medium (polyol or epoxy resin) serves multiple functions simultaneously: it acts as the dispersion medium, provides stabilization against agglomeration and settling, enables diversification of dispersoid and dispersion medium combinations, and contributes to the high quality of the final product. This multi-functional approach replaces the need for separate dispersants with limited characteristics
4Quantity of substance
If a liquid dispersion is used to disperse isotropic and anisotropic materials, then the materials can be dispersed in the medium, but the dispersoid may agglomerate or settle in a short time during storage
Solution Approach 1:
The patent utilizes the phase transition property of the dispersion medium, which is solid at room temperature. This phase transition from liquid to solid state during storage prevents the dispersoid from agglomerating or settling, while still allowing for effective dispersion when the material is in its liquid state during processing
Solution Approach 2:
The invention creates a composite solid dispersion system where the dispersoid is dispersed in a non-aqueous dispersion medium that is solid at room temperature. This composite structure provides long-term storage stability by preventing agglomeration and settling, while maintaining dispersion uniformity through the solid matrix
Data Source
AI summary
The present invention relates to a solid dispersion, a preparation method therefor, a chain-extended polyurethane using same, and an epoxy resin composition comprising same and, more particularly, to a solid dispersion in which an inorganic or organic material-derived isotropic or anisotropic substance is used as a dispersoid and dispersed at room temperature in a solid-phase dispersion medium such as polyols and sugars, whereby the dispersion can be easily stored and used, reduce transportation cost, prevent or alleviate the aggregation or precipitation caused during the storage of products, with the results of working efficiency improvement and processing cost reduction, and, when applied to polyurethane, can increase strength and provide an improved strength, compared to conventional curing agent, a preparation method therefor, a chain-extended polyurethane using same, and an epoxy resin composition comprising same.