Multilayer Viscoelastic Tape for Thin Lightweight Vibration Damping
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Solution Overview
Problem
Existing vibration damping adhesive tapes are typically thick and heavy, which hinders their effectiveness in reducing vibration while maintaining a thin and lightweight profile.
Innovation Solution
The development of a vibration damping tape comprising a substrate with two layers of viscoelastic damping material, one on each face or between two substrates, allowing for a range of thicknesses from 5 μm to 3000 μm and 2 μm to 5000 μm respectively, to achieve efficient damping while being thin and lightweight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional vibration damping adhesive tapes are used to achieve desired vibration damping characteristics, then vibration damping performance is improved, but the tape becomes relatively thick and significantly adds to the overall weight of the system
Solution Approach 1:
The damping system is segmented into multiple functional layers: a thin substrate providing structural support, viscoelastic damping material layers for vibration absorption, and adhesive layers for bonding. This segmentation allows each layer to be optimized independently, achieving effective damping with reduced overall thickness and weight compared to traditional single-layer thick tapes
Solution Approach 2:
The invention uses composite material construction combining different materials with complementary properties: a flexible substrate (such as polymer film), viscoelastic damping material (such as rubber-based or polymer-based damping compounds), and adhesive materials. This composite structure achieves superior vibration damping performance per unit weight compared to conventional homogeneous damping tapes
2Reliability
If traditional vibration damping adhesive tapes are used to achieve desired vibration damping characteristics, then vibration damping performance is improved, but the tape becomes relatively thick
Solution Approach 1:
The damping system is segmented into multiple functional layers: a thin substrate providing structural support, viscoelastic damping material layers for vibration absorption, and adhesive layers for bonding. This segmentation allows each layer to be optimized independently, achieving effective damping with reduced overall thickness compared to traditional single-layer thick tapes
Solution Approach 2:
The invention employs thin flexible substrate films (such as polymer films ranging from micrometers to millimeters in thickness) that provide sufficient mechanical support while minimizing overall tape thickness. These thin films work in conjunction with viscoelastic damping layers to achieve effective vibration damping in a thin-profile configuration
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 tape exhibits high vibration damping characteristics with improved adhesion, temperature resistance, and chemical resistance, offering enhanced damping efficiency and reduced weight compared to conventional tapes.
Implementation Method 1
a first layer of viscoelastic damping material at least partially disposed on the first face of the substrate. The tape additionally comprises a second layer of viscoelastic damping material at least partially disposed on the second face of the substrate
Data Source
AI summary
Vibration damping viscoelastic damping material laminates are described. The tapes generally include at least two viscoelastic damping material layers and at least one substrate. The tapes may optionally include one or more release liners. Also described are constrained layer systems formed by adhering the tape to a first substrate and/or second substrate undergoing vibration.