Organic-Inorganic Hybrid Composition for High Refractive Index Optical Lenses
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Solution Overview
Problem
Existing optical materials face challenges in achieving a high refractive index, heat resistance, and transparency while maintaining sufficient strength, particularly when dispersing inorganic particulates in resin, as they tend to aggregate and cause phase separation, leading to opacity and insufficient strength.
Innovation Solution
An organic-inorganic hybrid composition is developed, comprising a triazine ring-containing polymer, inorganic particulates, and a surface-treating agent with a triazine ring structure, which uniformly disperses the inorganic particulates, enhancing refractive index, transparency, and mechanical strength by modifying the particulate surface with a triazine ring-containing agent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If inorganic particulate is dispersed in resin to increase refractive index, then refractive index is improved, but transparency deteriorates due to phase separation and aggregation
Solution Approach 1:
A surface-treating agent acts as an intermediary between the inorganic particulate and the resin matrix. This agent modifies the particulate surface to improve compatibility with the resin, preventing aggregation and phase separation while maintaining high refractive index and transparency. The surface-treating agent mediates the interface between inorganic and organic components, enabling uniform dispersion without optical degradation.
Solution Approach 2:
The patent changes the surface properties of the inorganic particulate by controlling particle size (nanometer to sub-micrometer range) and applying surface treatment. These parameter changes prevent Rayleigh scattering and phase separation, allowing the composition to maintain both high refractive index and transparency. The specific size range and surface modification are critical parameters that resolve the contradiction between refractive index enhancement and transparency preservation.
2Stability of the object's composition
If inorganic particulate particle size is reduced to improve dispersion, then uniformity is improved, but aggregation increases making dispersion difficult
Solution Approach 1:
The surface-treating agent serves as a mediator that facilitates the dispersion of nanoscale inorganic particulate. By modifying the particulate surface, it prevents aggregation even at reduced particle sizes, making the dispersion process easier and achieving uniform distribution. The intermediary agent bridges the gap between small particle size benefits and aggregation tendencies.
Solution Approach 2:
The patent creates a composite system consisting of inorganic particulate, surface-treating agent, and resin matrix. This composite approach allows the inorganic particles to be uniformly dispersed at nanometer to sub-micrometer sizes without aggregation. The combination of components works synergistically to achieve stable, uniform dispersion that would be difficult to obtain with inorganic particles alone.
3Strength
If inorganic material is mixed with resin to increase strength, then strength is improved, but transparency deteriorates due to phase separation
Solution Approach 1:
The surface-treating agent acts as an intermediary that improves the interfacial bonding between inorganic particulate and resin. This mediation enables strong mechanical bonding while maintaining optical transparency by preventing phase separation. The intermediary ensures that the reinforcement provided by inorganic particles does not come at the cost of optical clarity.
Solution Approach 2:
The patent optimizes parameters including inorganic particulate size (nanometer to sub-micrometer range), surface treatment characteristics, and resin composition to achieve both high strength and transparency. These parameter changes enable the formation of a homogeneous composite structure where inorganic particles reinforce the resin matrix without causing phase separation or opacity.
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 hybrid composition achieves a high refractive index of at least 1.7, maintains transparency, and provides improved mechanical strength, making it suitable for applications such as optical lenses in electronics.
Implementation Method 1
a surface-treating agent having a triazine ring structure... uniformly disperses the inorganic particulates
Implementation Method 2
deterioration of transmissive light needs to be suppressed by Rayleigh scattering
Data Source
AI summary
An organic-inorganic hybrid composition including a polymer having a triazine ring structure in a main chain of the polymer (A);an inorganic particulate (B); and a surface-treating agent having a triazine ring structure represented by Formula (1)(C):wherein, in Formula (1), R1 is a carboxyl group, a phosphoric acid group, a sulfo group, or a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted aralkyl group, or a substituted or unsubstituted amino group, wherein a number median diameter (Dn50) of the inorganic particulate (B) is greater than or equal to about 1 nm and less than or equal to about 20 nm.