Plasma Polymer Coating for FRP Demolding and Corrosion
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Solution Overview
Problem
Current plasma polymer separation layers for fiber-reinforced plastics (FRPs) lack sufficient mechanical stability and durability, leading to premature degradation and ineffective demolding, while existing anticorrosion layers face challenges in providing comprehensive protection against strong acids and alkalis without compromising substrate integrity.
Innovation Solution
A solid plasma polymer body with a modulus of elasticity defined by the function E=25−31.5*x+13.5*x^2−1.85*x^3, where x is the C/O ratio, achieving high mechanical stability and low surface energy, and a plasma polymerization process optimizing the Si 2p peak position for enhanced hardness and separation properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If plasma polymer separation layers are used for FRP demolding, then separation properties are improved, but mechanical stability and durability deteriorate
Solution Approach 1:
The patent applies parameter changes by precisely controlling the C/O ratio within 0.5-2.0 and adjusting the modulus of elasticity to 1.25-10 GPa through plasma polymerization process optimization. This resolves the contradiction by finding the optimal parameter range where both separation properties and mechanical stability are simultaneously improved.
Solution Approach 2:
The patent creates a composite plasma polymer layer with specific elemental composition (C, O, Si, H, and optionally F) where the interaction between different elements produces a material that simultaneously achieves low surface energy for separation and high mechanical stability through the defined modulus of elasticity range.
2Reliability
If plasma polymerization optimizes for low surface energy, then separation properties improve, but mechanical durability deteriorates
Solution Approach 1:
The patent resolves this contradiction by establishing specific parameter ranges: C/O ratio of 0.5-2.0 and modulus of elasticity of 1.25-10 GPa. These parameter changes ensure that low surface energy (for separation) and high mechanical durability are achieved simultaneously rather than traded off against each other.
3Object-affected harmful factors
If anticorrosion layers provide comprehensive chemical protection, then corrosion resistance improves, but substrate integrity may be compromised
Solution Approach 1:
The patent applies parameter changes by controlling the plasma polymerization conditions to achieve a C/O ratio of 0.5-2.0 and modulus of elasticity of 1.25-10 GPa. This creates a coating that provides comprehensive chemical protection against strong acids and alkalis while maintaining substrate integrity through optimized mechanical properties.
Solution Approach 2:
The patent creates a composite plasma polymer coating with specific elemental composition that simultaneously provides chemical corrosion resistance and mechanical strength protection for the substrate, avoiding the compromise between chemical protection and substrate integrity.
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 improved separation properties for FRPs, enabling efficient demolding and prolonged mold lifespan, along with effective corrosion protection that resists strong acids and alkalis, ensuring mechanical durability and chemical resistance.
Implementation Method 1
A method of producing a solid plasma polymer body or a plasma polymer coating on a substrate
Implementation Method 2
which has a low surface energy and, in particular, a low polar component of the surface energy
Data Source
AI summary
The invention relates to a solid plasma polymer body, especially a plasma polymer layer, which has an exceptionally high modulus of elasticity at a given C/O ratio. It further relates to a solid body comprising a substrate and, applied to this substrate, a plasma polymer layer of the invention.