Curable Elastomer Composition for Electroactive Transducer Stability
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Solution Overview
Problem
Conventional electroactive polymer materials for transducer devices lack defined correlation relationships between dielectric breakdown strength, Young's modulus, dielectric constant, and electromechanical instability, necessitating trial-and-error material selection and unsatisfactory performance.
Innovation Solution
A curable elastomer composition with a compound having a high dielectric functional group, satisfying the formula E = α(Yε0εr)0.5, where E is dielectric breakdown strength, Y is Young's modulus, εr is specific dielectric constant, and ε0 is the dielectric constant of vacuum, and including organopolysiloxane and organohydrogenpolysiloxane components, cured by hydrosilylation, condensation, or radical reaction curing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional electroactive polymer materials are used for transducer devices, then material selection can be performed, but the performance is unsatisfactory due to lack of defined correlation relationships between dielectric breakdown strength, Young's modulus, dielectric constant, and electromechanical instability
Solution Approach 1:
The patent establishes specific parameter ranges and correlation relationships (E = α(Yε0εr)0.5) between dielectric breakdown strength, Young's modulus, and dielectric constant. By defining these quantitative relationships and parameter ranges, the patent transforms the material selection from a complex trial-and-error process into a systematic parameter optimization process, improving both reliability and reducing selection complexity.
Solution Approach 2:
The patent creates a feedback loop by establishing correlation relationships that allow prediction of material performance based on measurable parameters. The formula E = α(Yε0εr)0.5 provides a feedback mechanism where dielectric breakdown strength can be predicted from Young's modulus and dielectric constant measurements, enabling iterative optimization without extensive trial-and-error experimentation.
2Adaptability or versatility
If trial-and-error method is used for material selection, then various material properties can be explored, but the development time and work required are greatly increased
Solution Approach 1:
Instead of exploring material properties through time-consuming trial-and-error, the patent defines specific parameter ranges (Young's modulus: 0.001-10 MPa, dielectric constant: 100 or less, dielectric breakdown strength: 50-200 V/μm) and their mathematical relationships. This allows direct selection of materials meeting these criteria, maintaining property exploration while dramatically reducing development time.
Solution Approach 2:
The patent performs preliminary establishment of correlation relationships and parameter ranges before actual material selection. By pre-defining the formula E = α(Yε0εr)0.5 and acceptable parameter ranges, the patent eliminates the need for extensive trial-and-error during the selection process, achieving both comprehensive property exploration and time efficiency.
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 achieves optimal mechanical and electrical properties for transducer devices, enabling efficient design without trial-and-error, with dielectric breakdown strength of 50-200 V/μm, Young's modulus of 0.001-10 MPa, and specific dielectric constant of 100 or less.
Implementation Method 1
cured by hydrosilylation, condensation, or radical reaction curing
Implementation Method 2
cured by hydrosilylation, condensation, or radical reaction curing
Implementation Method 3
cured by hydrosilylation, condensation, or radical reaction curing
Implementation Method 4
the electrostriction related to dielectric property changes of the material that accompany the strain
Implementation Method 5
One is Maxwell stress caused by the change of the electric field distribution in the dielectric due to the strain
Data Source
AI summary
Performance requirements of electroactive polymer materials used for transducer devices include dielectric breakdown strength, Young's modulus, dielectric constant, thickness, and electromechanical instability. There are correlation relationships therebetween but definitions of the correlation relationships have not been achieved. Therefore, it is necessary to search for an excellent material by trial and error, which requires a great deal of work. Disclosed herein is a curable elastomer composition that includes a compound having a high dielectric functional group. A cured product of the composition satisfies the following formula:E=α(Yε0εr)0.5where E is the dielectric breakdown strength in the range of 50 V/μm to 200 V/μm, α is a constant in the range of 0.4 to 0.9, Y is Young's modulus and is in the range of 0.001 MPa to 10 MPa, εγ is a specific dielectric constant and is 100 or less, and ε0 represents the dielectric constant of vacuum.