Photochromatic 3D Printing Composition Core-Shell Structure
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Solution Overview
Problem
Current 3D printing technologies lack materials that can change colors based on light exposure, with photochromatic compositions being rare in the field, limiting the capabilities of 3D printed objects.
Innovation Solution
A photochromatic composition with a core-shell structure, where the core comprises a photochromic compound and the shell comprises a polymeric resin, dispersed within a polymeric component, allowing for the creation of 3D printed objects that change colors upon exposure to light, with the shell protecting the photochrome and extending its color life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If photochromic compounds are directly incorporated into 3D printing materials, then color-changing capability is achieved, but the photochromic compounds lack protection and have short color life
Solution Approach 1:
The photochromic compound is segmented from the polymeric matrix and enclosed within a protective shell structure, creating a core-shell morphology where the core contains the photochromic compound and the shell provides protection, thereby maintaining color-changing capability while extending color life
Solution Approach 2:
The photochromic compound is pre-encapsulated in protective shells before being incorporated into the 3D printing material, providing advance protection that extends the color life of the photochromic compounds during the printing process and subsequent use
2Adaptability or versatility
If new photochromatic materials are developed for 3D printing, then material capabilities are enhanced, but material availability and accessibility decrease
Solution Approach 1:
The invention creates a composite material system combining photochromic compounds with polymeric resins in a core-shell structure, dispersed within a polymeric component matrix, thereby enhancing material capabilities while maintaining compatibility with existing 3D printing processes and 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
Enables the production of 3D objects that can reversibly change colors with UV light exposure and revert to the original color with visible light or heat, providing enhanced visual properties and durability through chemical bonding within the polymeric matrix.
Implementation Method 1
a photochromic compound... the ability to change colors based on light exposure... change colors with UV light exposure and revert to the original color with visible light or heat
Data Source
AI summary
Compositions relating to three-dimensional (3D) printing. In particular, a photochromatic composition for use in 3D printing comprising a photochrome core with polymeric resin shell disposed thereon and a polymeric component.