Fibre-Matrix Adhesive Tape Embedding for Bending Stress
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing fiber-reinforced adhesive tapes have limited adhesion between the fabric and adhesive layers, restricting their applications and lacking sufficient dimensional stability for mechanical reinforcement against bending stress.
Innovation Solution
An adhesive tape with a matrix material carrier layer where fibers are completely embedded, allowing the adhesive layer to bond with the matrix material instead of the fibers, providing enhanced stability and versatility through a high fiber volume content and controlled pore structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If fibers are used as a woven layer in adhesive tapes, then tensile strength is improved, but adhesion between the fabric and adhesive layer is insufficient
Solution Approach 1:
The patent introduces a matrix material as an intermediary substance that completely embeds the fibers. This matrix material serves as the bonding interface between the fibers and the adhesive layer, replacing the traditional direct fiber-adhesive contact. The matrix material ensures complete embedding of fibers while providing a uniform surface for adhesive bonding, thus resolving the adhesion insufficiency problem while maintaining the tensile strength benefits of fiber reinforcement.
Solution Approach 2:
The patent creates a composite carrier layer structure where fibers are completely embedded in a matrix material. This composite structure combines the high tensile strength of fibers with the bonding capability of the matrix material, achieving both mechanical reinforcement and reliable adhesion. The composite nature allows the adhesive layer to bond with the matrix material surface rather than attempting to bond directly with fibers.
2Ease of operation
If thin carrier layers are used in adhesive tapes, then flexibility is improved, but dimensional stability and mechanical strength are insufficient
Solution Approach 1:
The patent employs a composite carrier layer where fibers are completely embedded in a matrix material. This composite structure provides exceptional dimensional stability and mechanical strength even in thin configurations. The fibers provide structural rigidity and stability, while the matrix material binds them together into a cohesive, dimensionally stable carrier layer that maintains flexibility without sacrificing strength.
Solution Approach 2:
The patent optimizes the fiber volume fraction parameter within specific ranges to achieve the desired balance between flexibility and dimensional stability. By controlling the concentration and arrangement of fibers within the matrix material, the carrier layer achieves sufficient mechanical strength and dimensional stability while maintaining the flexibility needed for tape application and conformability.
3Strength
If fiber content is increased to improve strength, then mechanical strength is improved, but complete embedding of fibers in matrix material becomes difficult
Solution Approach 1:
The patent specifies optimal ranges for fiber volume fraction and matrix material properties that enable complete fiber embedding while maintaining high mechanical strength. By controlling these parameters, the manufacturing process achieves thorough impregnation of fibers with matrix material, ensuring complete embedding even at high fiber contents. This parameter optimization resolves the conflict between maximizing strength through high fiber content and achieving complete embedding for structural integrity.
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
Adhesive tape 1 for fastening, covering and mechanically reinforcing surfaces with a carrier layer 2 and an adhesive layer 3 adhering to it, wherein the carrier layer 2 is made of a matrix material 4 in which fibers 5 are embedded.