Composite Structure Reflective Film Assembly via Release Liner

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing methods for applying metallic or reflective films to composite structures, such as those used in aerospace applications, face challenges in achieving uniform thickness and cost-effectiveness, particularly when dealing with complex shapes and surfaces, as they often rely on expensive vacuum deposition techniques.

Innovation Solution

A method involving a release liner with a metallic layer of specific thickness is applied directly to the composite support structure, allowing for the liner to be peeled off, leaving the metallic layer attached, which can be done manually and is suitable for non-uniform surfaces, eliminating the need for vacuum deposition.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If physical vapor deposition (PVD) techniques are used to apply metallic coatings, then coating uniformity and surface smoothness are improved, but manufacturing cost and process complexity increase significantly

Engineering Contradiction:

Improvecoating uniformityVSAvoidmanufacturing cost

Core Design Contradiction:

Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The patent uses a disposable release liner with pre-applied metallic coating instead of expensive vacuum deposition equipment. The release liner is a single-use component that is applied to the substrate and then removed, leaving the metallic coating on the substrate. This eliminates the need for costly PVD equipment while achieving uniform coating thickness.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

Solution Approach 2:

The release liner acts as an intermediary carrier that temporarily holds the metallic coating during application. The liner is coated with metallic material in advance, then transferred to the substrate through direct contact and selective adhesion, serving as a mediator between the coating material and the final substrate.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Area of stationary object

If vacuum deposition techniques are used for complex composite shapes, then surface coverage is improved, but process time and equipment requirements increase

Engineering Contradiction:

Improvesurface coverageVSAvoidprocess time

Core Design Contradiction:

Area of stationary objectVSLoss of time

Solution Approach 1:

The metallic coating is applied to the release liner in advance, before the liner is applied to the substrate. This preliminary coating action allows the coating process to be decoupled from the substrate application process, enabling parallel processing and reducing overall manufacturing time while ensuring complete surface coverage.

Inventive Principle:

Principle #10Preliminary action

3Manufacturing precision

If thin metallic films are applied via evaporation techniques, then film thickness uniformity is improved, but equipment complexity and operational difficulty increase

Engineering Contradiction:

Improvefilm thickness uniformityVSAvoidequipment complexity

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The release liner with pre-applied metallic coating serves as a disposable component that eliminates the need for complex vacuum evaporation equipment. The liner can be manufactured using simple coating processes and then applied manually or with minimal equipment, achieving uniform thin film deposition without sophisticated apparatus.

Inventive Principle:

Principle #27Cheap short-living objects (Disposable)

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 approach results in a more cost-effective and uniformly thick metallic or reflective surface, enhancing the optical and electromagnetic performance of composite structures without the limitations of traditional methods, particularly beneficial for aerospace applications.

Implementation Method 1

a method of metallizing the surface of a structure: providing a composite support structure; providing a release liner including a metallic layer having a thickness between 1 and 5 microns on a surface thereof; adhering the release liner to the composite support structure

Methodology Applied

Scientific EffectAdhesion: Adhesive

Implementation Method 2

removing the release liner so that the metallic layer remains attached to the surface of the support structure

Methodology Applied

Scientific EffectPeeling:

Data Source

PatentUS10377512B2Assembly and mounting of a reflective film on a composite structure

Publication Date: 2019.08.13 ALLIANCE SPACESYSTEMS LLC

AI summary

A method of metallizing a surface of a structure, and in some embodiments a mirror produced by such method, by the steps of providing a composite support structure; providing a release liner including a metallic layer having a thickness between 1 and 5 microns on a surface thereof; situating the release liner against the surface of the composite support structure so that the metallic layer of the release liner is placed in direct, physical contact with the surface of the support structure; and removing the release liner so that the metallic layer remains attached to the surface of the support structure.