Layered Flameproof Material for Lower-Cost Heat Protection
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Solution Overview
Problem
Conventional fire-protective fabrics with high aramid fiber blending ratios are costly and do not provide adequate safety for workers exposed to flames and high temperatures, limiting their widespread use in protective clothing and other applications.
Innovation Solution
A flameproof material combination comprising multiple layers of specific materials, including O-PAN, P-aramid, PTFE, PBI, and FR-rayon, assembled using aramid thread or adhesive, forming a semi-flexible armor that can be manufactured into wearable garments and other applications, with optional moisture-wicking layers for enhanced comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional fire-protective fabrics use a high blending ratio of aramid fiber to achieve excellent flame resistance and durability, then flame resistance and durability are improved, but product price increases and cost-effectiveness deteriorates
Solution Approach 1:
The patent uses composite materials by combining aramid fiber with other flame-resistant materials such as modacrylic fiber, acrylic fiber, or polyester fiber in a blended yarn. This allows the fabric to maintain flame resistance while reducing the proportion of expensive aramid fiber, thereby lowering the overall product price while still meeting safety requirements.
Solution Approach 2:
The patent changes the blending ratio parameters of different fibers in the yarn composition. Specifically, it uses aramid fiber at 10-50% blending ratio instead of the conventional high ratio, and combines it with other flame-resistant fibers to achieve the required flame resistance at a lower cost.
2Reliability
If conventional fire-protective fabrics use a high blending ratio of aramid fiber to ensure adequate safety for workers, then flame resistance is improved, but cost increases and widespread use is limited
Solution Approach 1:
The patent creates a composite yarn structure combining aramid fiber with other flame-resistant synthetic fibers. This composite approach maintains the safety effectiveness required for worker protection while utilizing more cost-effective materials to reduce overall production costs and enable wider adoption.
Solution Approach 2:
The patent applies local quality by strategically positioning aramid fiber segments within the blended yarn structure, combining them with other flame-resistant fibers. This allows the fabric to provide adequate safety in critical areas while using more economical materials in other portions, optimizing both safety and cost.
3Duration of action of stationary object
If conventional fire-protective fabrics use high aramid fiber content to achieve excellent durability, then durability is improved, but product price increases
Solution Approach 1:
The patent employs composite materials by blending aramid fiber with durable synthetic fibers such as polyester or polyacrylonitrile. This combination maintains the durability needed for fire-protective clothing while reducing reliance on expensive aramid fiber, thereby lowering the product price while preserving durability.
Solution Approach 2:
The patent modifies the fiber composition parameters by reducing aramid fiber content to 10-50% and supplementing with other durable flame-resistant fibers. This parameter change maintains adequate durability for protective clothing applications while significantly reducing material costs.
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 solution provides effective flame and heat resistance at a lower cost, ensuring worker safety in high-risk environments and enabling applications in wearables, lithium-ion battery protection, and general flame protection.
Implementation Method 1
A flameproof material combination comprising multiple layers of specific materials, including O-PAN, P-aramid, PTFE, PBI, and FR-rayon
Implementation Method 2
with optional moisture-wicking layers for enhanced comfort
Data Source
AI summary
Flameproof material for wearables, personal protective equipment, lithium-ion battery flame protection, and general flame protection are disclosed. A particular embodiment includes a flameproof material comprising: a first material being a combination of Oxidized Polyacrylonitrile (PAN) fiber and Para-aromatic polyamide (P-aramid) fiber; a second material being a combination of Oxidized PAN fiber, fire-resistant rayon (FR-rayon), and P-aramid fiber; and a third material being a combination of silica aerogel and fibrous glass configured for bonding with the first or second materials, the second material being configured for bonding with the first or third materials.