Breathable Heat-Protective Sheet Without Metallized Stiffness
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Solution Overview
Problem
Existing heat-protective 'space blankets' are not ergonomic due to stiffness from metallization, difficult to lay out or wrap around a person, and do not allow sweat perspiration, limiting their usability in emergency situations.
Innovation Solution
A heat-protective sheet comprising a microporous liquid-proof polymer matrix with calcium carbonate fillers and non-woven synthetic fibers, designed to be breathable, soft, and water-proof, with a low-transmittance substance to enhance thermal retention, and an adhesive agent for lamination, ensuring ease of use and thermal insulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If metallization is applied to both sides of the polyester sheet, then thermal reflection and heat protection are improved, but handiness and ergonomics deteriorate due to stiffness
Solution Approach 1:
The invention removes the metallization layer from the heat-protective sheet, extracting the harmful stiffness while preserving the essential thermal protection function through alternative means (polymer matrix with specific thermal properties)
Solution Approach 2:
The invention changes the material parameters by using a microporous polymer matrix instead of metallized polyester, altering the physical state from rigid and non-breathable to flexible and breathable while maintaining thermal protection capabilities
2Temperature
If metallization is applied to both sides of the polyester sheet, then heat protection is improved, but breathability and sweat perspiration are worsened
Solution Approach 1:
The invention employs a microporous polymer matrix that allows water vapor and sweat to pass through while maintaining thermal protection, resolving the contradiction between heat retention and breathability
Solution Approach 2:
The invention uses a composite structure combining polymer matrix with mineral fillers and air pockets, creating a material that simultaneously provides thermal insulation and breathability
3Ease of operation
If the sheet is folded or wrapped around a person, then portability is improved, but the sheet becomes wrinkled and crumpled
Solution Approach 1:
The invention uses a flexible polymer matrix structure that can be easily folded and wrapped without permanent deformation, improving portability while maintaining sheet integrity
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 provides optimal thermal quality, is ergonomic, handy, and breathable, allowing for effective thermal stabilization while being water-proof and impermeable to biological liquids, enhancing its usability in rescue operations.
Implementation Method 1
a microporous liquid-proof polymer matrix permeable to water vapor
Implementation Method 2
at least one substance with low-transmittance of the electromagnetic radiation with wavelength from about 7 μm to about 14 μm
Implementation Method 3
mineral fillers dispersed in the polymer matrix, comprising micro-pores at least next to the mineral fillers
Data Source
Figure 1
AI summary
The present invention relates to a heat-protective sheet (1) comprising a first layer (2) and a second layer (3) coupled to one another, wherein the first layer (2) comprises a microporous liquid-proof polymer matrix permeable to water vapor, and the second layer (3) comprises a non-woven fabric made of synthetic fibers, wherein the first layer (2) and the second layer (3) are not metallized.