Polyacrylamide Grafted Starch Fire Retardant Compatibility
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Solution Overview
Problem
Current eco-friendly fire retardants, such as ammonium polyphosphate, often require additional components and face compatibility issues, leading to reduced performance and environmental concerns, while traditional halogenated retardants are limited due to environmental concerns.
Innovation Solution
Development of bio-based fire retardants derived from polyacrylamide grafted starch, which integrates multiple fire retardant elements into a single compound, offering improved performance and compatibility with polymers, particularly in coating applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If halogenated fire retardants combined with antimony trioxide are used, then flame retardant efficiency is improved, but environmental problems arise
Solution Approach 1:
The invention changes the chemical composition parameters by replacing halogenated compounds with phosphorus-nitrogen-based compounds (ammonium polyphosphate and melamine), transforming the fire retardant system from halogenated to non-halogenated chemistry, thereby eliminating environmental harm while maintaining flame retardant efficiency
Solution Approach 2:
The invention creates a composite fire retardant system combining ammonium polyphosphate (acid source), melamine (blowing agent and nitrogen source), and antimony trioxide, where the synergistic interaction of multiple components achieves high flame retardant efficiency without the environmental toxicity of halogenated compounds
2Object-affected harmful factors
If ammonium polyphosphate is used alone as fire retardant, then environmental friendliness is improved, but flame retardant efficiency deteriorates
Solution Approach 1:
The invention merges ammonium polyphosphate with melamine and antimony trioxide in a composite system, where melamine contributes nitrogen for char formation and blowing agent functions, while antimony trioxide enhances flame retardancy through synergistic reactions with phosphorus compounds, collectively achieving high efficiency that neither component could achieve alone
Solution Approach 2:
The invention develops a composite intumescent flame retardant system where ammonium polyphosphate serves as acid source, melamine as blowing agent and nitrogen source, and antimony trioxide as synergist, creating a multi-functional composite that achieves superior flame retardant efficiency while maintaining environmental friendliness
3Reliability
If intumescent flame retardant systems with three components are used, then flame retardant performance is improved, but compatibility issues arise leading to reduced properties
Solution Approach 1:
The invention introduces silane-modified starch as an intermediary coupling agent that chemically bonds to both the inorganic components (ammonium polyphosphate, antimony trioxide) and the polymer matrix, mediating the interface between components and ensuring homogeneous distribution and compatibility throughout the composite system
Solution Approach 2:
The invention applies silane modification locally to the starch molecules, creating specific functional groups that enhance compatibility with both inorganic fire retardant components and organic polymer matrices, ensuring optimal interfacial adhesion and homogeneous distribution of all components in the composite system
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 bio-based fire retardants demonstrate high effectiveness, environmental friendliness, and non-toxicity, surpassing traditional blends by enhancing fire retardancy and compatibility, making them suitable for various applications including coatings.
Implementation Method 1
polyacrylamide grafted starch, which integrates multiple fire retardant elements into a single compound
Data Source
AI summary
A bio-based fire retardant derived from polyacrylamide grafted starch and use thereof. This disclosure relates to the field of polymer additives for improving fire safety of materials. Specifically, the present disclosure is bio-based material derived from polyacrylamide grafted starch as fire retardants to polymers. Moreover, the disclosure relates to their uses in the fields of coating, adhesive, etc.