Tire Tread Surface Layer B Hydrophilicity Melting Ice Grip
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Solution Overview
Problem
Winter tires face challenges in maintaining grip on melting ice due to the formation of a thin water layer, which existing solutions like fiber layer chips and hydrophilic membranes complicate production and increase costs.
Innovation Solution
A tire tread design featuring main grooves, sub-grooves, and blocks with specific incisions, where the surface layer B has higher atomic percentages of oxygen and halogen atoms, enhancing hydrophilicity to efficiently absorb and store water, thereby improving grip on melting ice.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fiber layer chips or hydrophilic membranes are added to the incision wall surfaces, then water absorption and storage capability is improved, but production cost increases and manufacturing complexity increases
Solution Approach 1:
The invention changes the chemical composition parameters of the rubber compound by incorporating hydrophilic substances (such as silica, aluminum oxide, or their surface-treated variants) directly into the rubber compound formulation. This allows the incision wall surfaces to inherently possess water absorption capabilities without requiring additional attachments like fiber layer chips or hydrophilic membranes, thereby resolving the contradiction between improved water absorption and reduced manufacturing complexity
Solution Approach 2:
The rubber compound is designed to serve multiple functions: it provides structural integrity, wear resistance, and simultaneously possesses water absorption properties through the incorporated hydrophilic substances. This multi-functionality eliminates the need for separate water absorption components, reducing production complexity while maintaining reliable grip on melting ice
2Reliability
If fiber layer chips or hydrophilic membranes are added to the incision wall surfaces, then water absorption and storage capability is improved, but manufacturing cost increases
Solution Approach 1:
The invention merges the water absorption function with the rubber compound itself by incorporating hydrophilic substances into the compound formulation. This consolidation eliminates the need for separate water absorption components, reducing material costs and simplifying the manufacturing process while ensuring reliable water absorption for improved grip on melting ice
Solution Approach 2:
By modifying the chemical composition parameters of the rubber compound to include hydrophilic substances, the invention achieves water absorption capability as an inherent property of the rubber material itself, avoiding the need for expensive additional components and their associated installation processes
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 enhanced tread design effectively absorbs and stores water, improving traction on melting ice without the need for additional attachments, thus enhancing grip and reducing production complexity and costs.
Implementation Method 1
each of the atomic percentages of oxygen and halogen atoms in the surface layer B is higher than those in the surface layer A... enhancing hydrophilicity to efficiently absorb and store water
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
A tire having improved grip on melting ice is provided, wherein each of blocks (6) of a tread (2) of the tire (1) comprises surface layer A extending along a top face (7), and surface layer B extending along a wall face facing to each of incisions (12, 13, 14, 15) of the blocks (6), each of the atomic percentages of oxygen and halogen atoms in the surface layer B is higher than those in the surface layer A, as measured by XPS (X-ray photoelectron spectroscopy), the atomic percentages being based on the total amount of carbon, nitrogen, oxygen, sulphur, halogen and silica atoms.