Fire protection element comprising a backing web
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Solution Overview
Problem
Existing fire protection elements with intumescent materials on carrier materials face issues where the intumescent material detaches from the carrier at high temperatures, reducing the effectiveness of the fire protection due to the decomposition of adhesives, leading to incomplete retention of the intumescent effect during a fire.
Innovation Solution
A fire protection element featuring a carrier fabric with loops that accommodate and hook onto elongated expandable graphite structures formed by the intumescent material when exposed to heat, ensuring a secure connection and improved adhesion, even as the intumescent material burns off.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If adhesive is used to hold intumescent material to carrier material, then initial bonding is achieved, but bonding fails at high temperatures due to adhesive decomposition
Solution Approach 1:
The patent replaces the chemical bonding mechanism (adhesive) with a mechanical interlocking system. The carrier fabric features loops that physically capture and retain the intumescent material through mechanical means, allowing the material to expand and char while remaining securely held by the loop structure even at high temperatures where adhesives would decompose.
Solution Approach 2:
The loop structure acts as an intermediary mechanical feature between the carrier fabric and intumescent material. These loops provide a temperature-resistant mechanical interface that mediates the connection, allowing the intumescent material to be held securely without relying on temperature-sensitive adhesive bonds.
2Reliability
If mechanical devices are added to hold expanded intumescent material, then retention during fire is improved, but device complexity increases
Solution Approach 1:
The carrier fabric serves multiple functions: it provides structural support, creates mechanical retention through its loop structure, and allows intumescent material application. The loops simultaneously serve as both the carrier structure and the retention mechanism, eliminating the need for separate mechanical holding devices and reducing overall system complexity.
Solution Approach 2:
The patent merges the carrier function and retention function into a single integrated loop structure. The carrier fabric with its loop pattern combines the support role and the mechanical retention role in one element, rather than requiring separate components for each function.
3Adaptability or versatility
If open lattice structure support material is used, then flexibility is achieved, but ability to direct intumescence is limited
Solution Approach 1:
The loop structure provides localized mechanical features at specific positions in the fabric that can guide and direct the intumescence in particular directions. Rather than a uniform open lattice, the loops create localized zones that can control the expansion pattern of the intumescent material while maintaining overall fabric flexibility.
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 a stable and directed intumescent effect, with enhanced resistance to hose stream tests, ensuring the fire protection material remains attached to the carrier, reducing ash fall-off and maintaining effectiveness throughout the fire exposure.
Implementation Method 1
an intumescent material applied to at least one surface of the carrier material that forms elongated structures when exposed to heat
Data Source
Figure 1~2b
Figure 3~4
AI summary
The invention relates to a fire protection element (1), comprising: a carrier material (2) having a woven carrier fabric; an intumescent material (3), which is applied to at least one surface of the carrier material (2) and which forms elongate structures when heat is applied; wherein the carrier material (2) has a woven carrier fabric having loops (8) for receiving the elongate structures of the intumescent material (3) that arise when heat is applied and for hooking together with said elongate structures.