Flame-Retardant High-Damping Material With Composite Flame Retardants
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Solution Overview
Problem
Existing vibration damping materials lack sufficient flame retardancy, despite exhibiting excellent vibration damping properties.
Innovation Solution
A flame-retardant high-damping material composition comprising styrene elastomer, high-viscosity oil, melamine polyphosphate flame retardant, organic phosphinic acid metal salt flame retardant, and tackifying resin, with specific mass ratios and optionally including magnesium hydroxide and carbon, to enhance flame retardancy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a vibration damping material including thermoplastic polymer organic material, paraffin process oil, and hydrogenated petroleum resin is used, then excellent vibration damping properties are achieved, but flame retardancy is insufficient
Solution Approach 1:
The invention uses a composite material system comprising styrene elastomer as base resin, high-viscosity oil as softener, and a composite flame retardant system containing both melamine polyphosphate and organic phosphinic acid metal salt. This multi-component composite approach achieves synergistic flame retardancy while maintaining the vibration damping properties required for electrical equipment applications.
Solution Approach 2:
The invention specifies precise compositional parameters: styrene elastomer 100 parts by mass, high-viscosity oil 68-72 parts by mass with kinematic viscosity of 380 mm²/s at 40°C, melamine polyphosphate 72-132 parts by mass, and organic phosphinic acid metal salt 121-173 parts by mass. These controlled parameter ranges optimize both flame retardancy and damping performance.
2Reliability
If flame retardants are added to vibration damping material, then flame retardancy is improved, but the material composition becomes more complex
Solution Approach 1:
The invention optimizes the composition by specifying precise parameter ranges for each component, particularly the flame retardant ratio (melamine polyphosphate 72-132 parts + organic phosphinic acid metal salt 121-173 parts per 100 parts styrene elastomer). This parameter optimization achieves effective flame retardancy while maintaining manageable material complexity for industrial production.
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 achieves excellent flame retardancy while maintaining superior vibration damping properties, as demonstrated by improved UL94 ratings and loss factor values.
Implementation Method 1
high-viscosity oil (B) having a kinematic viscosity of 380 mm²/s at 40°C
Implementation Method 2
melamine polyphosphate flame retardant (C) and organic phosphinic acid metal salt flame retardant (D)
Data Source
AI summary
The following high-damping material having excellent flame retardancy is provided. A flame-retardant high-damping material including: 100 parts by mass of styrene elastomer (A); from 68 to 72 parts by mass of high-viscosity oil (B) having a kinematic viscosity of 380 mm2/s or more at a temperature of 40°C; from 72 to 132 parts by mass of melamine polyphosphate flame retardant (C); from 121 to 173 parts by mass of organic phosphinic acid metal salt flame retardant (D), and from 90 to 186 parts by mass of tackifying resin (E).