Aviation Laminate Fire Resistance via Thermal Filler Adhesive

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Solution Overview

Problem

Existing aviation laminates for aircraft interior components often require additional labor and may cause discoloration when treated with fire retardant solutions, and these treatments do not consistently provide fire resistance as per aviation regulations.

Innovation Solution

The use of an aviation laminate comprising wooden elements bonded with an adhesive containing a thermal filler, such as intumescent powder, graphene, or hexagonal boron nitride, which provides inherent fire-resistant properties without additional processing steps.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If veneers are treated with a fire retardant solution, then fire resistance is improved, but additional labor is required and discoloration occurs

Engineering Contradiction:

Improvefire resistanceVSAvoidadditional labor

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The fire retardant properties are merged into the adhesive itself by incorporating thermally resistive fillers (intumescent powder, graphene, or hexagonal boron nitride) directly into the adhesive composition. This eliminates the need for separate fire retardant treatment steps while maintaining fire resistance compliance.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The fire retardant properties are built into the adhesive during the manufacturing process before the laminate is assembled. The thermally resistive filler is pre-mixed into the adhesive, so the fire protection is already in place before the wooden elements are bonded together, eliminating post-manufacturing treatment steps.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If veneers are treated with a fire retardant solution, then fire resistance is improved, but discoloration of the veneer occurs

Engineering Contradiction:

Improvefire resistanceVSAvoiddiscoloration

Core Design Contradiction:

ReliabilityVSShape

Solution Approach 1:

The fire retardant function is combined with the adhesive material rather than being applied as a separate coating on the veneer. This prevents direct contact between fire retardant chemicals and the veneer surface, avoiding discoloration while maintaining aesthetic appearance.

Inventive Principle:

Principle #5Merging (Combining)

3Reliability

If fire retardant treatment is applied to veneers, then fire resistance is improved, but processing steps increase

Engineering Contradiction:

Improvefire resistanceVSAvoidprocessing steps

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The fire retardant functionality is merged into the adhesive formulation itself, combining two functions (bonding and fire protection) into a single material. This reduces the overall number of processing steps in the laminate manufacturing process.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The adhesive serves multiple functions: it bonds the wooden elements together and simultaneously provides fire retardant protection. This multi-functionality eliminates the need for separate fire treatment processes.

Inventive Principle:

Principle #6Universality (Multi-functionality)

4Reliability

If fire retardant solution is applied to veneers, then fire resistance is improved, but consistent results are not achieved

Engineering Contradiction:

Improvefire resistanceVSAvoidconsistent results

Core Design Contradiction:

ReliabilityVSManufacturing precision

Solution Approach 1:

The fire retardant properties are predetermined and uniformly distributed in the adhesive during manufacturing. This ensures consistent fire resistance performance across all laminate batches without variability from post-manufacturing treatment applications.

Inventive Principle:

Principle #10Preliminary action

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

This solution achieves consistent fire resistance and decorative surfaces with reduced processing steps, minimizing weight and cost while ensuring compliance with aviation fire safety regulations.

Implementation Method 1

the thermal filler is an intumescent powder

Methodology Applied

Scientific EffectIntumescent expansion: Intumescent Materials

Implementation Method 2

the thermal filler is at least one of graphene, hexagonal boron nitride and intumescent powder

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 3

the thermal filler is a thermally resistive filler

Methodology Applied

Scientific EffectThermal insulation: Thermal Insulation

Data Source

PatentEP3287272B1Fire retardant aviation laminate

Publication Date: 2020.03.04 GOODRICH CORP

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AI summary

An aviation laminate includes a plurality of wooden elements, and an adhesive (44) disposed between the plurality of wooden elements, wherein the adhesive (44) includes a thermal filler, wherein the thermal filler is at least one of graphene, hexagonal boron nitride and intumescent powder.