Organic/Inorganic Hybrid Material Inorganic Platelet Network
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing organic/inorganic hybrid materials face challenges in increasing inorganic content beyond 30 wt% without compromising transparency and flexibility, as higher inorganic content leads to opacity and brittleness due to insufficient polymer content.
Innovation Solution
Formation of an inorganic platelet network structure by self-connecting or linking inorganic nanoplatelets within an organic polymer matrix, allowing for a high inorganic content while maintaining transparency and flexibility through the creation of a bicontinuous phase.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If inorganic content is increased to improve physical properties, then thermal resistance and dimensional stability are improved, but transparency and flexibility deteriorate due to insufficient polymer content
Solution Approach 1:
The inorganic filler is segmented into nanoplatelets with dimensions of 1-100 nm, which can disperse more effectively in the polymer matrix without aggregating. This segmentation allows higher inorganic content while maintaining transparency, as the nanoscale platelets do not scatter light as strongly as microscale particles.
Solution Approach 2:
The patent creates a composite structure where inorganic nanoplatelets are integrated with organic polymer chains through surface modification and intercalation. The organoclay nanoparticles are inserted between polymer chains, forming a bicontinuous structure that combines the thermal stability of inorganic materials with the flexibility and transparency of organic polymers.
2Strength
If inorganic content is increased to improve physical properties, then mechanical strength is improved, but flexibility deteriorates due to brittleness
Solution Approach 1:
The inorganic nanoplatelets are distributed non-uniformly at the nanoscale within the polymer matrix, creating local regions of enhanced strength while maintaining overall flexibility. The platelets are oriented and distributed to reinforce specific areas without creating continuous rigid networks that would cause brittleness.
Solution Approach 2:
The patent develops a composite where organoclay nanoparticles are intercalated with polymer chains, creating a structure where inorganic and organic phases are intimately mixed at the nanoscale. This bicontinuous composite structure provides mechanical reinforcement while preserving flexibility, as the polymer chains can still move and deform despite the presence of inorganic fillers.
3Ease of manufacture
If conventional mechanical blending is used to disperse inorganic filler, then ease of manufacture is maintained, but dispersion quality deteriorates due to micro-scale only dispersion
Solution Approach 1:
The patent changes the size parameter of the inorganic filler from microscale to nanoscale (1-100 nm), which fundamentally alters the dispersion behavior. Nanoplatelets can be dispersed at the molecular level within the polymer matrix, achieving uniform distribution without requiring complex blending equipment or processes.
Solution Approach 2:
The patent uses an intermediary approach by modifying the surface of inorganic clay particles with organic compounds (quaternary ammonium compounds) to create organoclay. This intermediary modification allows the inorganic particles to interact compatibly with the organic polymer matrix, enabling uniform dispersion through simple mixing processes without requiring sophisticated equipment.
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 inorganic platelet network structure enables hybrid materials to maintain high transparency and flexibility at increased inorganic content (>30 wt%), reducing thermal expansion coefficients and enhancing thermal resistance and dimensional stability.
Implementation Method 1
the inorganic nanoplatelets are self-connected or connected via a linker to constitute an inorganic platelet network
Implementation Method 2
connected via a linker to constitute an inorganic platelet network
Implementation Method 3
reducing thermal expansion coefficients
Implementation Method 4
providing an organic dispersion of inorganic nanoplatelets; mixing the organic dispersion with a polymer solution
Data Source
AI summary
An organic/inorganic hybrid material is provided, including an organic polymer, and a plurality of inorganic nano-platelets, wherein the inorganic nano-platelets are self-connected or connected via a linker to constitute an inorganic platelet network. By the formation of the inorganic network structure, the hybrid materials can keep their transparency and flexibility at a high inorganic content, and exhibit greatly reduced coefficients of thermal expansion A method for fabricating the organic/inorganic hybrid material is also provided.