Dual-Curing 3D Printing Composition for Isotropic, Heat-Stable Elastomers
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Solution Overview
Problem
There is a lack of elastomeric printable compositions suitable for 3D printing applications, particularly those that can provide isotropic properties and are stable under elevated temperatures, and can be combined with various additives to enhance mechanical, thermal, and chemical resistance.
Innovation Solution
A radiation and moisture curable composition based on (meth)acrylate- and silane-terminated polymers, offering isotropic and elastomeric properties, is developed for 3D printing, which includes terminal groups that allow for crosslinking and condensation under external conditions, including exposure to radiation and moisture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If silane-modified polymer compositions are used to provide isotropic and elastomeric properties, then the material stability and resistance properties are improved, but the deformability under elevated temperatures worsens compared to hotmelts
Solution Approach 1:
The patent changes the chemical parameters of the polymer composition by incorporating silane-modified polymers with specific terminal groups that undergo crosslinking reactions. This transformation alters the material's physical properties, providing thermal stability and resistance to deformation while maintaining printability through controlled viscosity and curing mechanisms.
Solution Approach 2:
The invention creates a composite material system combining silane-modified polymers with specific terminal functional groups that exhibit both elastomeric properties and thermal stability. The composite structure integrates the flexibility of polymer chains with the rigidity of crosslinked networks, achieving a balance between deformability and shape retention under elevated temperatures.
2Ease of operation
If the composition is made printable with sufficient stability to keep desired form, then the ease of operation is improved, but the device complexity increases due to dual radiation and moisture curing mechanisms
Solution Approach 1:
The patent implements multi-functionality by designing a dual-curing system where the same composition can be cured through both radiation and moisture mechanisms. This universal approach allows the material to respond to different environmental conditions and curing methods, providing flexibility in processing while maintaining a single, integrated composition formulation that simplifies overall system design.
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 composition provides stable, printable materials for 3D printing that maintain form during curing, offering enhanced mechanical, thermal, and chemical resistance, and can be tailored with additives for specific properties.
Implementation Method 1
radiation curable composition based on (meth)acrylate- and silane-terminated polymers
Implementation Method 2
silane-terminated polymers that can be used as pasty 3D printing materials and provide isotropic and elastomeric properties
Data Source
AI summary
The present invention relates to radiation of dual radiation/moisture curable compositions based on (meth)acrylate- and silane-terminated polymers that can be used as 3D printing materials and provide isotropic and elastomeric properties. The invention further relates to the use thereof as 3D printing materials and printing methods using said compositions.