Chipping-Resistant Vibration Damper Sheet for Vehicle Underfloor
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current vibration-damping materials for vehicles lack chipping-resistant performance, especially when used outdoors underfloor or in engine rooms, where they are susceptible to damage from stone splatters and require both vibration-damping and chipping-resistant properties.
Innovation Solution
A vibration-damping material in sheet form comprising a non-expanding thermosetting sheet with 5-15% carbon material, polybutadienic elastomer, curing agent, petroleum resin, and inorganic filler, combined with an adhesive layer for self-adhesion or thermal fusion, providing both vibration-damping and chipping-resistant performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional vibration-damping materials (asphalt sheets, spraying type materials) are used, then vibration-damping performance is achieved, but chipping-resistant performance is insufficient when used outdoors
Solution Approach 1:
The invention uses a composite material consisting of polybutadienic elastomer (providing vibration-damping performance) combined with carbon material (providing chipping-resistant performance). This composite structure allows the single material to simultaneously achieve both vibration-damping and chipping-resistant properties required for outdoor use, resolving the contradiction between these two performance requirements.
2Reliability
If thermosetting resin constraining layer with multiple additives is used, then chipping-resistant performance is improved, but manufacturing complexity increases
Solution Approach 1:
The invention optimizes the composition parameters by specifying precise weight ratio ranges (polybutadienic elastomer: carbon material: inorganic filler = 10-30:5-15:50-70) to achieve the desired balance between chipping-resistant performance and manufacturing simplicity. By controlling these parameters within specific ranges, the material achieves high reliability without excessive complexity.
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 material effectively adheres to vehicle underfloor or engine room surfaces, offering enhanced chipping resistance and vibration-damping performance, distinct from existing latex, plastisol, and aqueous emulsion coatings, ensuring durability and noise reduction.
Implementation Method 1
a polybutadienic elastomer: a curing agent: a petroleum resin and an inorganic filler
Implementation Method 2
vibration-damping performance
Implementation Method 3
an adhesive layer for self-adhesion or thermal fusion
Implementation Method 4
an adhesive layer for self-adhesion or thermal fusion
Implementation Method 5
chipping-resistant performance
Implementation Method 6
do not occur a crack and peeling by a stone splatter
Data Source
AI summary
It provides that a vibration-damping material in form of sheet which can be adhered to even at locations such as underfloor or engine room of a vehicle where both vibration-damping performance and chipping-resistant performance are required by self-adhesive bonding or heat melt adhesive bonding through an adhesive layer composed of a adhesive or a hotmelt adhesive. A vibration-damping material in form of sheet with chipping-resistant performance having both of vibration-damping performance and chipping-resistant performance includes a thermosetting vibration-damping sheet and an adhesive layer, the thermosetting vibration-damping sheet includes one or more than synthetic rubber selected from the group consisting of a styrene-butadiene rubber, a butadiene rubber and a high-styrene rubber; a polybutadienic elastomer; a curing agent; a petroleum resin and an inorganic filler.