Fire-Retardant Coating With Microcapsule Activation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional fire-retardant coatings are ineffective in actively extinguishing fires quickly and stably, as they primarily prevent fire spread rather than actively suppressing flames, and the fire extinguishing agents are volatile and difficult to store.
Innovation Solution
An environmentally-friendly fire-retardant coating incorporating fire extinguishing agent microcapsules with multiple layers of wall materials that rupture and vaporize at elevated temperatures, releasing fire extinguishing materials to cool and extinguish fires effectively, while nano silicon dioxide and nano metal oxide enhance storage stability and compatibility with film-forming substances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional flame retardants are added to coating substrate, then fire spread prevention is achieved, but active fire extinguishing capability is insufficient
Solution Approach 1:
The fire extinguishing agent is segmented into microcapsules with wall materials that rupture at specific temperatures (not lower than 75°C). This segmentation allows the fire extinguishing material to be released only when needed, transforming the passive fire retardant coating into an active fire extinguishing system that responds quickly to fire conditions.
Solution Approach 2:
The fire extinguishing material is pre-loaded into microcapsules and dispersed throughout the coating substrate before fire occurs. The microcapsules remain stable during storage and normal conditions, but automatically rupture and release the fire extinguishing material when exposed to fire temperatures, enabling rapid active fire extinguishing without requiring external activation.
2Productivity
If fire extinguishing agent is added to coating, then active fire extinguishing capability is improved, but storage stability deteriorates due to volatility
Solution Approach 1:
The fire extinguishing material is enclosed in microcapsule wall materials that form a protective shell around the volatile fire extinguishing agent. These wall materials prevent the fire extinguishing agent from evaporating or degrading during storage, while being designed to rupture at fire temperatures (not lower than 75°C), thus maintaining both storage stability and fire extinguishing capability.
Solution Approach 2:
The physical state and chemical properties of the fire extinguishing material are changed by encapsulating it within microcapsules. This encapsulation alters the volatility and stability parameters of the fire extinguishing agent, allowing it to remain stable during storage at room temperature while maintaining the ability to release rapidly when exposed to fire conditions.
3Object-affected harmful factors
If flame retardant is used to prevent fire spread, then fire area expansion is controlled, but fire extinguishing time is prolonged
Solution Approach 1:
The microcapsule wall materials act as an intermediary between the stable stored state and the active fire extinguishing state. These wall materials remain intact during storage and normal conditions, preventing premature release of the fire extinguishing agent. When fire occurs, the wall materials rupture, mediating the rapid release of fire extinguishing material that directly contacts and extinguishes the fire source, significantly reducing fire extinguishing time.
Solution Approach 2:
The system utilizes phase transition of the microcapsule wall materials at specific temperatures. The wall materials transition from a stable intact state during storage to a ruptured state when exposed to fire temperatures (not lower than 75°C). This phase transition enables the fire extinguishing material to be released rapidly in response to fire, achieving quick active fire extinguishing while maintaining fire spread prevention capabilities.
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 coating achieves rapid and stable fire extinguishing by releasing fire extinguishing materials at high temperatures, improving storage stability and compatibility, and providing effective cooling and fire prevention without causing pollution or damage to substrates.
Implementation Method 1
fire extinguishing agent microcapsules that are ruptured and vaporized to release fire-extinguishing material to achieve the purposes of cooling and/or fire prevention and/or fire extinguishment upon being exposed to a temperature of not less than 75° C.
Implementation Method 2
the fire extinguishing material quickly absorbs heat to realize automatic cooling and fire extinguishing
Data Source
AI summary
An environment-friendly fire-retardant coating comprises a coating substrate and fire-extinguishing agent microcapsules which can be ruptured and vaporized to a release fire-extinguishing material to achieve the purposes of cooling and/or fire prevention and/or fire extinguishing upon being exposed to a temperature of not less than 75° C. and/or an open flame environment. In order to break the current situation that the traditional fire-prevention, fire-extinguishing and flame-retardant coatings can only prevent the spread of the fire area, but it is difficult to extinguish the fire sensitively and actively in a short time, there are provided a variety of coatings and/or films which can actively cool down, prevent fire and extinguish the fire, have short response time, have stable fire-extinguishing components in the coatings and/or films, with the films being able to trigger the fire extinguishment repeatedly.