Flexible Abrasive Product with Segmented Cellular Backing
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Solution Overview
Problem
Conventional abrasive products often fail to provide uniform abrasion on non-planar surfaces due to rigidity, leading to uneven wear and reduced efficiency, especially when used on materials with varying shapes and properties.
Innovation Solution
A flexible abrasive product with a backing layer made of thermoplastic polymer, such as polypropylene, featuring surface height deviations and interconnected channel portions to support abrasive zones, allowing for improved conformability and efficient material removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional rigid abrasive products are used, then structural strength is maintained, but conformability to non-planar surfaces deteriorates
Solution Approach 1:
The backing layer is segmented into multiple cellular structures with cells having different densities. The first cellular structure has a lower density providing flexibility and conformability, while the second cellular structure has a higher density providing structural strength. This segmentation allows the single backing layer to simultaneously exhibit both compliant and strong characteristics.
Solution Approach 2:
The backing layer is constructed as a composite material with two distinct cellular structures integrated within a single layer. This composite structure combines materials or structures with different mechanical properties - one providing flexibility for surface conformability and another providing rigidity for structural strength - thereby resolving the contradiction between adaptability and strength.
2Productivity
If abrasive products with uniform structure are used, then manufacturing simplicity is maintained, but performance on varying surfaces deteriorates
Solution Approach 1:
The backing layer incorporates local variations in cellular structure density - a first cellular structure with lower density in certain regions for enhanced conformability, and a second cellular structure with higher density in other regions for structural support. This local differentiation of properties allows the product to adapt to varying surface requirements while maintaining overall structural integrity.
Solution Approach 2:
The invention changes the physical parameters of the backing layer by creating cells with different densities within the same layer. This parameter variation allows different regions of the backing layer to exhibit different mechanical behaviors - softer in regions requiring conformability and stiffer in regions requiring strength - thereby improving abrasion efficiency on varying surfaces without requiring multiple separate components.
3Adaptability or versatility
If single-density cellular structure is used, then manufacturing process is simplified, but surface adaptability deteriorates
Solution Approach 1:
The cellular structure is segmented into two distinct density regions within a single backing layer. The first cellular structure with lower density provides surface adaptability, while the second with higher density provides structural support. This segmentation can be achieved through controlled manufacturing processes that create different cell densities in different zones of the same layer.
Solution Approach 2:
The backing layer functions as a composite material system where two cellular structures with different densities are integrated into one component. This composite approach provides surface adaptability through the lower-density regions while maintaining ease of manufacture by consolidating both structures into a single layer that can be produced in one manufacturing process rather than assembling multiple separate components.
Data Source
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Figure 3
Figure 4a~4b
AI summary
The invention relates to obtaining an abrasive product comprising a backing layer and an abrasive layer, wherein the backing layer comprises propylene homopolymer or copolymer.