Ceramic Resin Composite Temporary Bonding with Metal Plate
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Solution Overview
Problem
Conventional methods for bonding ceramic resin composite sheets with metal plates result in irreversible curing of the thermosetting resin, making it impossible to reprocess the composite, and the unbounded sheets are prone to cracks during transportation due to low strength.
Innovation Solution
A temporary bonding method where a metal plate is bonded to one surface of the ceramic resin composite using a thermosetting resin with a degree of cure between 5.0% and 70%, allowing for reprocessing and enhanced impact resistance during transportation by maintaining a shear bond strength between 0.1 MPa and 1.0 MPa.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the thermosetting resin is completely cured to exhibit high adhesive strength, then the bonding strength between the ceramic resin composite sheet and the metal plate is improved, but the thermosetting resin becomes irreversibly cured and denatured, making it impossible to perform bonding again or reprocess the composite
Solution Approach 1:
The patent applies the dynamics principle by making the bonding state changeable and reversible. The thermosetting resin is cured to a specific degree (5.0% to 70%) to create a temporary bonding state that can be adjusted. This allows the bonding to be reversed or modified if needed, transforming the static irreversible bonding into a dynamic controllable state. The degree of cure is controlled to maintain both adequate bonding strength and reprocessability.
Solution Approach 2:
The patent applies parameter changes by controlling the degree of cure of the thermosetting resin within a specific range (5.0% to 70%). By changing the curing parameter from complete cure to partial cure, the patent achieves a balance between bonding strength and reprocessability. This parameter control allows the material to exhibit different properties depending on the application stage.
2Adaptability or versatility
If the ceramic resin composite sheet is transported without bonding the metal plate, then the reprocessing flexibility is maintained, but the sheet has low strength and is prone to cracks during transportation
Solution Approach 1:
The patent creates a dynamic bonding system where the metal plate can be temporarily bonded during transportation and then easily removed before final processing. The temporary bonding provides mechanical strength during transport, and the reversible nature allows removal when processing is needed, satisfying both strength and flexibility requirements at different stages.
Solution Approach 2:
The patent applies preliminary action by bonding the metal plate to the ceramic resin composite sheet before transportation. This preliminary bonding provides the necessary mechanical strength for safe transport. The bonding is performed in advance, and the metal plate serves as a protective reinforcement during the transportation phase.
3Strength
If conventional bonding methods are used, then the bonding strength is achieved, but the thermosetting resin is completely irreversibly cured, preventing any further processing or repositioning
Solution Approach 1:
The patent transforms the static irreversible bonding into a dynamic reversible bonding by controlling the degree of cure. The bonding strength is sufficient for practical purposes, but the incomplete curing allows for repositioning or removal if needed. This creates a dynamic system that adapts to operational requirements.
Solution Approach 2:
The patent applies partial action by curing the thermosetting resin to a partial degree (5.0% to 70%) rather than complete cure. This partial curing provides sufficient bonding strength for most applications while retaining the ability to reposition or reprocess. The action is deliberately stopped before completion to maintain flexibility.
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 safe transportation and reprocessing of the ceramic resin composite while maintaining high impact resistance and reliability, preventing degradation of the thermosetting resin and reducing the risk of cracks.
Implementation Method 1
a non-oxide ceramic sintered body impregnated with a thermosetting resin composition having cyanate groups in such a manner that a degree of cure calculated by differential scanning calorimetry is 5.0% or more and 70% or less
Implementation Method 2
a thermosetting resin composition having cyanate groups
Data Source
AI summary
A ceramic-metal temporary bonding body to inhibit breakage and degradation of a ceramic resin composite having low strength includes: a ceramic resin composite in which a non-oxide ceramic sintered body is impregnated with a thermosetting resin composition having cyanate groups in such a manner that a degree of cure calculated by differential scanning calorimetry is 5.0% or more and 70% or less; and a metal plate temporarily bonded to at least one surface of the ceramic resin composite. A shear bond strength between the ceramic resin composite and the metal plate is 0.1 MPa or more and 1.0 MPa or less.