Composite Structure Irradiation Curing Abrasion Resistance
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Solution Overview
Problem
Touch interfaces require high abrasion resistance, but existing lacquer layers do not sufficiently meet this requirement while maintaining translucency, gloss, and color.
Innovation Solution
A composite structure with a finishing layer based on a cured polymer, achieved by irradiation curing of a lacquer containing an irradiation-curable compound, which provides high abrasion resistance and maintains translucency and gloss, comprising a substrate layer with a thickness of 30 µm to 3000 µm and a finishing layer of 5 µm to 100 µm, with optional nanostructures and photoinitiators for UV and excimer curing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a lacquer layer is applied to provide translucency and gloss, then the aesthetic properties are improved, but the abrasion resistance is insufficient
Solution Approach 1:
The patent applies irradiation curing (UV or electron beam) to transform the lacquer from a soft coating to a crosslinked polymer network, fundamentally changing the chemical structure and physical properties to achieve high abrasion resistance while preserving optical properties
Solution Approach 2:
The patent creates a composite structure combining the substrate, intermediate layers, and the irradiation-cured lacquer layer, where the crosslinked polymer network provides mechanical durability while the formulation maintains translucency and gloss
2Reliability
If the finishing layer is made thicker to improve abrasion resistance, then durability is improved, but the translucency and gloss are reduced
Solution Approach 1:
The patent uses irradiation curing to achieve high crosslinking density in thin films, where the crosslinking degree and network density are optimized to provide maximum abrasion resistance at minimal thickness, preventing light scattering and maintaining gloss
Solution Approach 2:
The patent creates a dense crosslinked network structure that replicates the protective properties of thick coatings in a thin layer, where the molecular-level crosslinking provides equivalent durability to much thicker conventional coatings
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 composite structure exhibits high abrasion resistance, maintaining its structure and gloss after standard abrasion tests, suitable for touch interface applications and artificial leather in vehicles, combining high abrasion resistance with translucency.
Implementation Method 1
irradiation curing a finishing lacquer that is applied on the substrate layer and contains an irradiation-curable compound to obtain the cured polymer
Data Source
Figure 1(A)~1(C)
AI summary
A composite structure containing a finishing layer provided on a substrate layer, wherein the finishing layer is based on a cured polymer and is obtainable by a method that comprises irradiation curing a finishing lacquer that is applied on the substrate layer and contains an irradiation-curable compound to obtain the cured polymer; a method of preparing the composite structure; and the use of the composite structure for the interior of vehicles.