Phosphorus-Triazine Flame Retardants for Polymers
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Solution Overview
Problem
Current flame retardants lack optimized properties and improved environmental compatibility, necessitating the development of more effective and environmentally friendly alternatives for use in thermoplastic polymers.
Innovation Solution
The development of phosphorous-containing triazine compounds and their coordination polymers, which are synthesized through specific chemical reactions and used as flame retardants in polymers, offering improved flame retardancy and environmental compatibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional flame retardants (metal phosphonates, melamine compounds) are used, then flame retardancy is achieved, but environmental compatibility and optimized properties are insufficient
Solution Approach 1:
The patent changes the chemical parameters of the flame retardant by introducing triazine rings with specific substituents (X = H, CN, C(NH)NH2, C(O)NH2, C(NH)NHCN) and controlling the ratio of phosphorous to nitrogen-containing groups. This optimization of chemical composition parameters achieves both effective flame retardancy and improved environmental compatibility by reducing toxic metal content while maintaining flame suppression functionality.
Solution Approach 2:
The invention creates composite flame retardant molecules combining triazine core structures with phosphorous-containing side groups. This composite molecular design integrates the flame-retarding properties of phosphorous compounds with the environmental benefits of nitrogen-containing triazine frameworks, achieving synergistic effects that conventional single-component flame retardants cannot attain.
2Reliability
If existing flame retardants are used in thermoplastic polymers, then flame safety is improved, but processing properties and environmental compatibility need optimization
Solution Approach 1:
The patent optimizes processing properties by controlling the molecular weight, crystallinity, and thermal stability parameters of the flame retardant compounds. The specific substitution patterns on the triazine ring (with a, b, c, d parameters defined) allow tuning of melting point and viscosity characteristics, making the flame retardants easier to process while maintaining flame safety.
Solution Approach 2:
The invention applies local quality modification by introducing specific functional groups at different positions of the triazine molecule. The substituents (X groups) are strategically placed to provide localized flame retardancy while maintaining overall polymer processability. This allows different regions of the molecule to serve different functions: flame suppression at the core, while side groups optimize processing characteristics.
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
These compounds effectively impart flame retardancy to synthetic polymers, such as thermoplastic polymers, while providing enhanced environmental compatibility and improved processing properties, making them suitable for various industrial applications.
Implementation Method 1
a polymer obtainable from the water-eliminating polycondensation of a monomeric compound of the formula (II)
Implementation Method 2
These compounds effectively impart flame retardancy to synthetic polymers, such as thermoplastic polymers
Data Source
AI summary
The present invention relates to phosphorus-containing triazine compounds of the formula (I) and (III) and to the polymers obtainable from the water-eliminating polycondensation of a compound of the formula (II), and to the use thereof as flame retardants.[(A-H)+]m[Mm+(HPO42−)m] (III-1),[(A-H)+]m[Mm+(P2O74−)m/2] (III-2).