Low Density EPE Foam Shock Pad for Artificial Turf
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Solution Overview
Problem
Artificial turf systems face challenges in achieving optimal shock absorption and energy restitution, particularly due to the environmental impact and cost associated with infill materials, and existing shock pads do not consistently provide improved performance over time.
Innovation Solution
A shock pad comprising low density expanded polyethylene (EPE) foam with a density range of 10-100 kg/m³, potentially blended with other polyolefins, offering enhanced shock absorption and energy restitution characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional infill materials (SBR, sand) are used to provide shock resistance, then impact resistance is achieved, but environmental impact increases and cost increases
Solution Approach 1:
The patent changes the physical parameters of the shock pad by using low density expanded polyethylene foam with density ranging from 10-100 kg/m³. This parameter change allows the shock pad to provide adequate shock absorption and energy restitution without requiring thick layers of conventional infill materials, thereby reducing environmental impact while maintaining impact resistance performance
Solution Approach 2:
The patent employs composite material structure by combining expanded polyethylene foam with specific polymer compositions including polyolefins and other polymers. This composite approach creates a shock pad that delivers improved shock absorption and energy restitution characteristics, reducing the need for conventional infill materials like SBR and sand
2Strength
If conventional infill materials are used to provide shock resistance, then impact resistance is achieved, but cost increases
Solution Approach 1:
By changing the density parameter of the foam material to low density (10-100 kg/m³), the shock pad achieves effective shock absorption with reduced material quantity. This eliminates the need for thick layers of expensive conventional infill materials like SBR and sand, thereby reducing overall system cost while maintaining impact resistance
Solution Approach 2:
The patent utilizes porous expanded polyethylene foam structure that provides effective shock absorption through its cellular architecture. This porous structure delivers adequate impact resistance with significantly reduced material quantity compared to conventional dense infill materials, reducing both material cost and installation requirements
3Strength
If existing shock pads are used, then shock absorption is provided, but performance does not consistently improve over time
Solution Approach 1:
The patent employs composite material structure by combining expanded polyethylene foam with specific polymer compositions including polyolefins and other polymers. This composite approach creates a shock pad that delivers improved shock absorption and energy restitution characteristics, reducing the need for conventional infill materials like SBR and sand
4Object-affected harmful factors
If shock pad is used to reduce infill material, then environmental impact decreases, but shock absorption performance may be compromised
Solution Approach 1:
The patent changes the physical parameters of the shock pad by using low density expanded polyethylene foam with density ranging from 10-100 kg/m³. This parameter change allows the shock pad to provide adequate shock absorption and energy restitution without requiring thick layers of conventional infill materials, thereby reducing environmental impact while maintaining impact resistance performance
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 low density EPE foam shock pad provides improved shock absorption and energy restitution while reducing the need for infill materials, thereby minimizing environmental impact and maintaining performance over a prolonged period.
Implementation Method 1
A shock pad for artificial turf systems, wherein said shock pad comprises low density expanded polyethylene (EPE) foam with a density range of 10-100 kg/m³, offering enhanced shock absorption
Implementation Method 2
The low density EPE foam shock pad provides improved shock absorption and energy restitution while reducing the need for infill materials
Data Source
Figure 1~2
AI summary
The present invention relates to a shock pad for artificial turf systems, wherein said shock pad comprises low density expanded polyethylene (EPE). An object of the present invention is to provide a shock pad providing improved shock absorption and/or energy restitution characteristics to artificial turf systems. Another object of the present invention is to provide artificial turf systems having improved shock absorption and/or energy restitution characteristics, especially over a prolonged period of time.