Flame-Retardant High-Damping Material Composition for Vibration Control
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Solution Overview
Problem
Existing vibration damping materials with high damping properties are insufficient in flame retardancy, necessitating the development of a material that balances both properties effectively.
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 potential inclusion of magnesium hydroxide and carbon, to enhance both flame retardancy and vibration damping properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a vibration damping material containing thermoplastic polymer organic material, paraffin process oil, and hydrogenated petroleum resin is used, then vibration damping properties are improved, but flame retardancy is insufficient
Solution Approach 1:
The patent uses a composite material system consisting of styrene elastomer base resin, high-viscosity oil, melamine polyphosphate flame retardant, organic phosphinic acid metal salt flame retardant, and tackifying resin. This composite formulation achieves both high vibration damping properties (loss factor ≥0.9) and excellent flame retardancy (UL94 V-1 or higher) by combining materials with complementary properties.
Solution Approach 2:
The patent specifies precise compositional parameters and ratios of each component to optimize both damping and flame retardancy. The styrene elastomer content is controlled at 30-70 parts by mass, high-viscosity oil at 68-72 parts by mass with kinematic viscosity ≥380 mm²/s at 40°C, melamine polyphosphate at 72-132 parts by mass, organic phosphinic acid metal salt at 121-173 parts by mass, and tackifying resin at 90-186 parts by mass. These parameter controls ensure simultaneous achievement of vibration damping and flame retardancy.
2Object-affected harmful factors
If flame retardants are mixed in a high-damping material, then flame retardancy is improved, but the material composition becomes more complex
Solution Approach 1:
The patent combines two different types of phosphorus flame retardants (melamine polyphosphate and organic phosphinic acid metal salt) in a synergistic ratio to achieve superior flame retardancy. This combination approach allows effective flame protection while maintaining relatively simple processing and formulation compared to using higher quantities of single flame retardant types.
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 achieves excellent flame retardancy and vibration damping properties, as demonstrated by achieving UL94 V-1 or higher flame retardancy and a loss factor of 0.9 or higher, while maintaining good hydrolysis resistance and tackiness, thereby addressing the insufficiencies of previous materials.
Implementation Method 1
a material including a thermoplastic polymer organic material, a paraffin process oil, and a hydrogenated petroleum resin
Implementation Method 2
100 parts by mass of styrene elastomer (A)
Implementation Method 3
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)
Data Source
AI summary
A flame-retardant high-damping material includes 100 parts by mass of styrene elastomer; from 68 to 72 parts by mass of high-viscosity oil 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; from 121 to 173 parts by mass of organic phosphinic acid metal salt flame retardant; and from 90 to 186 parts by mass of tackifying resin.