Flame-Retardant Insulation Sheet With Voids for Heat Shielding
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Solution Overview
Problem
Current flame retardant and heat insulating materials for electrical and electronic devices lack high flame retardancy and heat insulating properties, especially in compact or uneven spaces, where traditional methods fail to provide adequate protection.
Innovation Solution
A flame retardant and heat insulating sheet comprising a resin composition with a binder resin, low-melting point inorganic substances, high-melting point inorganic substances, and voids, which forms a protective coating film that effectively blocks flames and insulates when exposed to high temperatures, utilizing materials like glass balloons and silicone resins to enhance performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional flame retardant materials are used, then flame retardancy is provided, but heat insulating property is insufficient
Solution Approach 1:
The patent uses a composite material system consisting of binder resin, low-melting point inorganic substance, and high-melting point inorganic substance. This composite structure allows the material to simultaneously achieve flame retardancy through the inorganic substances and heat insulating property through the resin matrix and void structure, resolving the contradiction between these two properties.
Solution Approach 2:
The patent incorporates voids into the flame retardant coating structure, creating a porous material that provides thermal insulation through air trapping while maintaining flame retardancy. The voids reduce thermal conductivity without compromising the flame barrier function, thus improving heat insulating property while preserving flame retardancy.
2Reliability
If flame retardant coating is applied, then flame retardancy is improved, but heat insulation performance deteriorates
Solution Approach 1:
The patent changes the physical parameters of the coating by incorporating voids and using specific inorganic substances with different melting points. This parameter modification allows the coating to maintain flame retardancy while improving heat insulation performance by reducing thermal energy loss through the coating layer.
Solution Approach 2:
The patent utilizes phase transitions of the low-melting point inorganic substance during flame exposure. The substance melts and forms a protective barrier that maintains flame retardancy while the high-melting point inorganic substance and resin structure maintain structural integrity and provide heat insulation, preventing heat energy loss.
3Object-affected harmful factors
If high flame retardancy is achieved, then safety is improved, but heat insulating property remains insufficient
Solution Approach 1:
The patent employs a composite material system where binder resin, low-melting point inorganic substance, and high-melting point inorganic substance work synergistically. The inorganic substances provide flame safety by forming a protective barrier, while the resin matrix and incorporated voids provide heat insulation, thus simultaneously achieving both high flame retardancy and sufficient heat insulating property.
Solution Approach 2:
The patent incorporates voids to create a porous structure that enhances heat insulation by trapping air and reducing thermal conductivity. This porous structure maintains flame safety through the inorganic substance barrier while significantly improving heat insulating property, resolving the contradiction between these two properties.
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 sheet achieves high flame retardancy and heat insulation, maintaining its integrity and shape under flame exposure while providing excellent bendability and handleability, suitable for various applications including electronic devices and transportation vehicles.
Implementation Method 1
a low-melting point inorganic substance; which forms a protective coating film that effectively blocks flames and insulates when exposed to high temperatures
Implementation Method 2
voids; The sheet achieves high flame retardancy and heat insulation
Data Source
AI summary
Provided is a flame retardant and heat insulating sheet having high flame retardancy and a high heat insulating property. Also provided is a flame retardant heat insulator including such flame retardant and heat insulating sheet. A flame retardant and heat insulating sheet according to one embodiment includes: a flame retardant and heat insulating layer formed from a resin composition (A); and a heat insulating layer, wherein the resin composition (A) contains: a binder resin; a low-melting point inorganic substance; a high-melting point inorganic substance; and voids. A flame retardant and heat insulating sheet according to one embodiment includes: a flame retardant and heat insulating layer formed from a resin composition (B); and a heat insulating layer, wherein the resin composition (B) contains: a binder resin that produces a high-melting point inorganic substance when heated; a low-melting point inorganic substance; and voids and/or a void-forming agent.