Halogen-Free Flame Retardant Resin Composition
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional flame retardant materials require high amounts of additives, which can produce harmful pollutants and affect material properties, posing challenges in achieving effective flame retardancy while minimizing environmental and health impacts.
Innovation Solution
A halogen-free flame retardant resin composition incorporating sulfur-containing, phosphorus-containing, and nitrogen-containing compounds, such as p-benzenedithiol, DOPO etherified bisphenol A, and melamine, in specific weight percentages to achieve synergistic flame retardancy, reducing the overall amount of additives needed and enhancing thermal and water resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If flame retardants are added in greater amounts to achieve better flame retardancy, then flame retardant effect is improved, but harmful pollutants are produced and material properties are affected
Solution Approach 1:
The patent changes the chemical composition parameters by using sulfur-containing flame retardants (p-benzenedithiol and/or 4,4'-diaminodiphenyl disulfide) in combination with phosphorus-containing and/or nitrogen-containing flame retardants. This compositional parameter change achieves effective flame retardancy while reducing the total amount of flame retardant additives and minimizing harmful pollutant generation during combustion.
Solution Approach 2:
The patent creates a composite flame retardant system by combining sulfur-containing compounds with phosphorus-containing and/or nitrogen-containing compounds in a halogen-free epoxy resin matrix. This composite approach produces synergistic effects that enhance flame retardancy while reducing the overall dosage required and decreasing harmful emissions compared to single-component systems.
2Reliability
If flame retardants are added in greater amounts to achieve better flame retardancy, then flame retardant effect is improved, but material properties are affected
Solution Approach 1:
The patent optimizes the concentration parameters of flame retardant additives, using sulfur-containing flame retardants at controlled levels combined with phosphorus-containing and/or nitrogen-containing flame retardants. This parameter optimization achieves the required flame retardancy rating while maintaining the mechanical and physical properties of the halogen-free epoxy resin system.
Solution Approach 2:
The patent applies flame retardant additives locally within the resin system at optimized concentrations rather than using excessive amounts throughout. The sulfur-containing flame retardants (p-benzenedithiol and/or 4,4'-diaminodiphenyl disulfide) are incorporated at specific levels to provide sufficient flame protection while preserving the base material's strength and other critical properties.
3Reliability
If sulfur-containing flame retardant is used to achieve flame retardancy, then flame retardant effect is improved, but thermal decomposition temperature may be reduced
Solution Approach 1:
The patent combines sulfur-containing flame retardants with phosphorus-containing and/or nitrogen-containing flame retardants in a composite system within halogen-free epoxy resin. This composite formulation creates synergistic interactions that maintain flame retardancy effectiveness while improving the thermal stability and decomposition temperature compared to using sulfur-containing flame retardants alone.
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 composition achieves good heat resistance, water resistance, mechanical properties, and electrical properties, with a thermal decomposition temperature of 390°C or more, and flame retardancy meeting V-0 UL-94 standards, while reducing the use of flame retardants and maintaining cost-effectiveness.
Implementation Method 1
the sulfur-containing flame retardant, phosphorus-containing flame retardant and/or nitrogen-containing flame retardant have mutual co-ordination and synergistic effect, so as to enhance the flame retardancy of the resin composition
Implementation Method 2
the overall performance of the copper-clad laminates (CCL) prepared from the flame retardant resin composition can be optimized with good heat resistance, water resistance, higher thermal decomposition temperature
Implementation Method 3
a halogen-free flame retardant resin composition incorporating sulfur-containing, phosphorus-containing, and nitrogen-containing compounds
Data Source
AI summary
The present invention provides a flame retardant resin composition, a thermosetting resin composition, a composite metal substrate and a flame retardant electronic material, wherein the flame retardant composition comprises a sulfur-containing flame retardant, a phosphorus-containing flame retardant and/or a nitrogen-containing flame retardant, and a halogen-free epoxy resin. The synergistic effect of the sulfur-containing flame retardant, phosphorus-containing flame retardant and nitrogen-containing flame retardant in the flame retardant composition of the present invention makes the resultant copper-clad laminate have better heat resistance, water resistance, adhesion, mechanical properties and electrical properties, while having better flame retardancy. While having better flame retardancy, the pouring sealant prepared therefrom has the characteristics of short dry time, low viscosity, good thermal conductivity and good stability, and is a kind of environmentally friendly flame retardant composition having a great economy.