iCVD Antifouling Coating Polymer for Rapid, Durable Deposition
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Solution Overview
Problem
Existing methods for forming superhydrophobic surfaces for antifouling applications, such as in autonomous vehicle sensors and windows, face challenges in achieving both quick deposition and durability of antifouling coating layers.
Innovation Solution
A method using initiated chemical vapor deposition (iCVD) to form an antifouling coating layer by depositing a fluorine-based monomer, crosslinking agent, and initiator, with specific flow rate ratios and temperature controls, to create a durable and effective antifouling coating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional methods are used to form superhydrophobic surfaces, then antifouling effect is achieved, but deposition time is long and durability is insufficient
Solution Approach 1:
The patent changes the deposition parameters by using iCVD with specific flow rate ratios (fluorine-based monomer:crosslinking agent:initiator=2:0.7-1.5:1) and temperature controls (fluorine-based monomer heated at 60-90°C, crosslinking agent heated at 30-45°C), enabling rapid deposition while maintaining durability through optimized chemical reaction conditions
Solution Approach 2:
The patent creates a composite coating layer by combining fluorine-based monomer with crosslinking agent (DVB or GMA) and initiator (TBPO), forming a crosslinked polymer structure that provides both rapid deposition and enhanced durability through the synergistic effects of fluorine-containing compounds and crosslinked network
2Productivity
If quick deposition is achieved, then productivity is improved, but antifouling characteristic and durability deteriorate
Solution Approach 1:
The patent optimizes deposition parameters including flow rates (fluorine-based monomer: 8.4-10.4 sccm, crosslinking agent: 3.5-8 sccm, initiator: 4.6-5.4 sccm) and temperatures, enabling quick deposition while maintaining antifouling characteristics through controlled chemical vapor deposition reactions
Solution Approach 2:
The patent achieves continuous and uniform coating deposition through iCVD process, maintaining constant flow rates and temperatures throughout the deposition process to ensure both speed and quality of the antifouling coating without interruption or compromise
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 method achieves rapid deposition of a coating layer with excellent antifouling characteristics and durability, as demonstrated by contact angle and nano-cutting tests, indicating high shear strength and resistance to wear.
Implementation Method 1
iCVD, which is a chemical vapor deposition process that deposit a thin film on a desired base material by generating a chemical reaction using an initiator and a monomer
Implementation Method 2
an initiator, which is vaporized by applying heat to a monomer and the initiator in a canister and is then radicalized by a filament
Implementation Method 3
forming a polymer organic thin film using a reaction between an initiator, which is vaporized by applying heat to a monomer and the initiator in a canister and is then radicalized by a filament, and the monomer positioned on a base material
Data Source
AI summary
A method of manufacturing an antifouling coating layer is disclosed. The method includes depositing a fluorine-based monomer, a crosslinking agent, and an initiator on a substrate by putting them into an iCVD chamber. The fluorine-based monomer is one, or two or more selected from a group of C2FMA, C3FMA, C4FMA, C5FMA, C6FMA, C7FMA, and C8FMA. The antifouling coating layer has excellent antifouling characteristic and durability through quick deposition using iCVD.