Peel and Stick Waterproofing Sheet with Polyester Layer
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Solution Overview
Problem
Existing peel and stick waterproofing sheets face issues with granular coatings that cause machinery wear and environmental hazards due to dust, and they lack sufficient puncture resistance and structural support for the asphalt layer.
Innovation Solution
A self-adhesive protective sheet is created using a polyester layer constructed from polyethylene terephthalate (PET) fibers, which is thermally bonded and combined with asphalt and a fiberglass mesh for enhanced stability and puncture resistance, eliminating the need for granular coatings by forming a strong bond with the asphalt layer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If granular coatings are used on waterproofing sheets, then the asphalt layer has sufficient protection, but machinery wear increases and environmental hazards occur due to dust
Solution Approach 1:
The patent removes the granular coating layer from the waterproofing sheet structure. Instead of using granules on the exposed asphalt surface, the invention uses a smooth asphalt layer bonded to polyester fabric, eliminating the source of dust and machinery wear while maintaining waterproofing functionality.
Solution Approach 2:
The patent creates a composite structure consisting of polyester fabric bonded to asphalt layer. This composite material provides the necessary protection and structural integrity without requiring granular coatings, thus eliminating dust generation and reducing machinery wear during installation.
2Reliability
If granular coatings are used on waterproofing sheets, then the asphalt layer is protected, but puncture resistance and structural support are insufficient
Solution Approach 1:
The patent employs a composite structure where polyester fabric is bonded to the asphalt layer. The polyester fabric provides tensile strength, puncture resistance, and structural support, while the asphalt layer provides waterproofing. This composite approach addresses both protection and strength requirements simultaneously.
Solution Approach 2:
The patent assigns different functional properties to different layers of the waterproofing sheet. The polyester fabric layer provides structural strength and puncture resistance, while the asphalt layer provides waterproofing and adhesion. This division of functional qualities optimizes performance for each specific requirement.
3Object-generated harmful factors
If a smooth asphalt layer without granular coating is used, then machinery wear and dust are reduced, but the asphalt layer lacks sufficient protection
Solution Approach 1:
The patent creates a composite where polyester fabric is bonded to the asphalt layer. This composite structure provides the necessary protection and structural integrity without requiring granular coatings, thus eliminating dust generation and reducing machinery wear during installation.
Solution Approach 2:
The patent removes the granular coating layer from the waterproofing sheet structure. Instead of using granules on the exposed asphalt surface, the invention uses a smooth asphalt layer bonded to polyester fabric, eliminating the source of dust and machinery wear while maintaining waterproofing functionality.
4Strength
If polyester fabric is bonded to asphalt layer, then puncture resistance and tensile strength are improved, but manufacturing complexity increases
Solution Approach 1:
The patent combines the polyester fabric and asphalt layer into a single integrated waterproofing sheet through bonding processes. This merging of layers simplifies the overall product structure and installation process, as the reinforced sheet is applied as a single unit rather than requiring separate installation of fabric and asphalt layers.
Solution Approach 2:
The patent creates a composite structure consisting of polyester fabric bonded to asphalt layer. This composite material provides the necessary protection and structural integrity without requiring granular coatings, thus eliminating dust generation and reducing machinery wear during installation.
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 solution provides a waterproof sheet with high tensile strength, puncture resistance, and lateral stability, allowing for effective waterproofing without the drawbacks of granular coatings, such as reduced machinery wear and environmental hazards, and enabling applications like roof and foundation protection.
Implementation Method 1
a polyester layer constructed from polyester fibers that are thermally bonded together to form a non-woven, liquid permeable layer
Implementation Method 2
placing liquid asphalt on the non-woven, liquid permeable PET sheet that is partially absorbed by the non-woven, liquid permeable PET sheet
Implementation Method 3
placing asphalt on a fiberglass mesh that is partially absorbed by the fiberglass mesh
Data Source
AI summary
Disclosed is waterproofing sheeting that uses a polyester layer that provides high lateral stability and puncture resistance. The waterproof sheeting can be used in many applications including waterproof roof underlayments waterproof sheeting for foundations, underlayment for tile and flooring and various other applications. The waterproof sheeting can be manufactured without many of the problems associated with the granular coatings of existing waterproof sheeting that create excessive wear and environmental hazards.