Fluorinated Polymer Terminal Integration for Hydrophobic Film Formation
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Solution Overview
Problem
Existing hydrophobic film technologies require separate surface treatments or fluorine-based surfactants to achieve hydrophobic properties, which can lead to phase separation issues and increased costs.
Innovation Solution
A polymer with a fluorine-based compound, such as chlorotrifluoroethylene (CTFE) oligomer, is integrated at the terminal of the polymer chain, allowing for the formation of a hydrophobic film surface without additional treatments and preventing phase separation, using a composition that includes this polymer and a vinyl-based monomer, which is polymerized to create a film with excellent hydrophobic properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fluorine-based surfactant is added to polymer solution to achieve hydrophobic property, then hydrophobic surface is obtained, but phase separation occurs in the composition
Solution Approach 1:
The invention merges the hydrophobic function and polymer matrix into a single integrated component by incorporating fluorine-based compound directly into the polymer chain structure. This eliminates the need for separate fluorine-based surfactant additives, thereby preventing phase separation while maintaining hydrophobic properties. The fluorine-containing side chains are covalently bonded to the polymer backbone, ensuring compositional homogeneity and stability.
2Reliability
If separate surface treatment is performed to provide hydrophobic property, then hydrophobic surface is achieved, but process complexity and cost increase
Solution Approach 1:
The invention applies preliminary action by incorporating the hydrophobic function directly into the polymer structure during the polymerization stage. The fluorine-based compound is integrated into the polymer chain through controlled radical polymerization before film formation, eliminating the need for subsequent surface treatment steps. This advance preparation simplifies the overall process while ensuring consistent hydrophobic properties.
3Reliability
If fluorine-based surfactant is used to achieve hydrophobic surface, then hydrophobic property is obtained, but additional processing steps and cost are required
Solution Approach 1:
The invention achieves universality by designing a polymer that simultaneously serves as both the structural matrix and the hydrophobic functional layer. The fluorine-containing side chains are permanently integrated into the polymer structure, allowing the same material to provide both mechanical integrity and hydrophobic surface properties. This multi-functionality eliminates the need for separate surfactant applications and simplifies manufacturing.
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 polymer composition achieves a hydrophobic film surface with enhanced compatibility and cost-effectiveness, maintaining hydrophobic properties without separate surface treatments and avoiding phase separation, suitable for various industrial applications.
Implementation Method 1
the polymer P can be formed by the activation of some of Cl elements within the CTFE oligomer with a catalyst, addition of vinyl-based monomers to the activated positions of the polymer, and continuous polymerization of the vinyl-based monomers
Data Source
AI summary
Provided is a polymer, a composition and film comprising the polymer, and a preparation method of the polymer. The polymer includes a compound having a hydrophobic property at its terminal, and thus a film capable of having a hydrophobic surface can be provided at the same time when the film is formed without a separate surface treatment. Further, an effect capable of permanently hydrophobically modifying a film surface is obtained at a low cost and a composition that does not occur a phase separation phenomenon in a polymer solution state is provided. For example, the film is used as a water repellent coating film, an anti-contamination film, or the like.