Friction Material with Elastic Resin for High-Temperature Friction
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Solution Overview
Problem
Existing friction materials face challenges in achieving optimal friction performance, particularly in high-temperature applications, due to limitations in asperity contact and coefficient of friction, while maintaining durability and resistance to heat and noise.
Innovation Solution
A friction material comprising a base layer with fibers and a surface layer of friction modifying particles bound with a resin containing an aliphatic segment, which includes polymers with 3-n-pentadecadienyl phenol or α-Eleostearic acid, or an epoxy phenolic resin, enhancing asperity deformation and coefficient of friction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If conventional rigid resins are used in friction materials, then manufacturing is easier and cost is lower, but coefficient of friction is insufficient and heat resistance deteriorates
Solution Approach 1:
The patent changes the chemical composition parameters of the resin by incorporating aliphatic segments (at least 3 carbon atoms) into the polymer structure. This compositional modification increases the coefficient of friction while maintaining manufacturing feasibility through conventional friction material processing methods
Solution Approach 2:
The patent creates a composite resin system combining aliphatic-containing polymers with traditional friction material components. This composite approach achieves superior friction characteristics and heat resistance while remaining compatible with existing manufacturing processes
2Reliability
If friction materials are designed for high temperature performance, then durability improves, but heat generation increases
Solution Approach 1:
The patent modifies the resin's thermal parameters by incorporating aliphatic segments that alter the material's heat transfer and energy dissipation characteristics. This enables the friction material to maintain durability at high temperatures while reducing excessive heat generation through optimized thermal management at the material level
3Force
If aliphatic segment content is increased to improve friction performance, then coefficient of friction increases, but resin cost increases
Solution Approach 1:
The patent optimizes the aliphatic segment content parameter within specific ranges (40-100% by weight of polymer) to achieve the desired coefficient of friction while controlling material cost. This parameter optimization balances performance requirements with economic considerations
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 increases the coefficient of friction and maintains stable performance under high temperatures, improving durability and reducing heat generation in transmission systems.
Implementation Method 1
the resin includes a polymer having an aliphatic segment; wherein the aliphatic segment is at least 3 single bonded carbon atoms long or longer
Implementation Method 2
the surface layer comprising a blend of friction modifying particles and fibers or at least one type of friction modifying particle
Data Source
AI summary
A friction material including a plurality of fibers and a resin component binding the fibers, and wherein the resin component includes an elastic resin.