Composite Member Adhesion via Inorganic Particles
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing composite members made by bonding ceramic and plastic with adhesives often suffer from insufficient joining strength due to adhesive layer deterioration.
Innovation Solution
A composite member is developed with an inorganic layer containing metal oxide or metal oxide hydroxide and a resin layer where inorganic particles directly adhere to the inorganic layer, eliminating the need for an adhesive.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If an adhesive layer is used to bond ceramic and plastic, then the joining process is simple, but the joining strength is insufficient and the adhesive layer deteriorates over time
Solution Approach 1:
The invention removes the adhesive layer from the composite structure, eliminating the weak interface between ceramic and plastic. By directly bonding the resin layer to the ceramic surface through inorganic particles, the structure achieves inherent strength without relying on deteriorating adhesive materials.
Solution Approach 2:
The invention creates a composite interface structure where inorganic particles embedded in the resin layer directly bond to the ceramic surface. This composite structure combines the advantages of both ceramic and resin materials, achieving superior joining strength that neither material could provide alone.
2Reliability
If an adhesive layer is used to bond ceramic and plastic, then initial bonding is achieved, but the adhesive layer deteriorates causing separation
Solution Approach 1:
The invention eliminates the adhesive layer that causes deterioration and separation over time. The direct bonding structure without organic adhesive materials prevents the degradation issues that limit service life.
Solution Approach 2:
The invention changes the bonding mechanism from chemical adhesive bonding to physical-mechanical interlocking through inorganic particles. This parameter change from organic to inorganic bonding materials fundamentally improves long-term reliability and durability.
3Ease of manufacture
If porosity of inorganic layer is high, then manufacturing is easier, but joining strength between layers decreases
Solution Approach 1:
The invention applies different porosity characteristics to different regions: the bulk inorganic layer can have higher porosity for ease of manufacture, while the interface region with inorganic particles maintains low porosity to ensure strong bonding. This local differentiation optimizes both manufacturability and strength.
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
This configuration enhances the joining strength between the inorganic and resin layers, preventing separation and improving the mechanical properties of the composite member.
Implementation Method 1
some of which adhere directly to the inorganic substance of the inorganic layer
Data Source
AI summary
Provided is a composite member, including: an inorganic layer that contains an inorganic substance containing at least one of a metal oxide or a metal oxide hydroxide. The composite member includes a resin layer that is provided on a surface of the inorganic layer and contains a resin and inorganic particles that are dispersed in the resin and some of which adhere directly to the inorganic substance of the inorganic layer. A porosity in a cross section of the inorganic layer is 20% or less, and a peak derived from a hydroxyl group is detected for the inorganic layer when measurement is performed using infrared spectroscopy or X-ray diffraction.