Fluorinated Ether Polymer Dual-Curing Coatings
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Solution Overview
Problem
Current fluorinated polymers are limited by a single curing mechanism and monotonous preparation processes, making it difficult to produce coatings with both stain resistance and anti-scratching properties on an industrial scale, and they lack compatibility with most resins.
Innovation Solution
A fluorinated ether polymer with a dual-curing mechanism, capable of being cured by ultraviolet radiation and/or curing agents, is developed, using a perfluoropolyether with carboxyl or hydroxyl groups at one or both ends of its molecular chain, mixed with monomers and an inhibitor, and heated to form a hard coating with anti-stain and anti-scratch properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If fluorine containing compounds are used to improve anti-stain and anti-fingerprint performance, then surface energy is reduced and stain resistance is improved, but compatibility with most resins used in the industry deteriorates
Solution Approach 1:
The patent introduces a grafting structure as an intermediary between the fluorine containing compound and the resin matrix. The grafted groups (such as double bonds, hydroxyl groups, amine groups) act as mediators that improve compatibility with matrix resins while maintaining the low surface energy properties of the fluorine structure. This resolves the contradiction by allowing the fluorine compound to maintain its stain resistance function while the grafted groups provide compatibility with various resins.
Solution Approach 2:
The patent creates a composite structure by combining fluorine containing compounds with resin matrices through grafting. The modified fluorine structure with grafted groups forms a composite material that integrates the low surface energy properties of fluorine compounds with the compatibility and mechanical properties of the resin matrix, thereby achieving both stain resistance and compatibility.
2Ease of manufacture
If fluorinated polymers are cured by single curing mechanism (ultraviolet light, high temperature or curing agent), then curing process is simple, but the ability to form coatings with both stain resistance and anti-scratching properties deteriorates
Solution Approach 1:
The patent introduces a dual-curing mechanism that allows the fluorinated polymer to be cured by both ultraviolet light and thermal curing agents. This multi-functional curing system enables the coating to achieve both stain resistance (through the fluorine structure) and anti-scratching properties (through the crosslinked network formed by dual curing), resolving the contradiction between process simplicity and performance requirements.
Solution Approach 2:
The patent changes the curing parameters from a single curing mechanism to a dual-curing mechanism. By introducing both photopolymerization (ultraviolet light) and chemical curing (curing agents), the system can achieve more comprehensive coating properties including both stain resistance and anti-scratching properties, while still maintaining relatively simple manufacturing processes.
3Ease of manufacture
If fluorinated polymers are prepared by monotonous processes, then preparation method is simple, but the ability to produce coatings with both stain resistance and anti-scratching properties on industrial scale deteriorates
Solution Approach 1:
The patent develops a fluorinated polymer with dual-curing capability that can be produced using improved preparation processes. The polymer can be cured by both ultraviolet light and thermal curing, making it versatile for different industrial applications and production scales. This multi-functionality enables the polymer to meet both stain resistance and anti-scratching requirements while being producible at industrial scale.
Solution Approach 2:
The patent creates a composite fluorinated polymer structure that combines the low surface energy properties of fluorine compounds with resin matrices through grafting. This composite structure can be prepared by improved processes that maintain simplicity while enabling industrial scale production of coatings with both stain resistance and anti-scratching properties.
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 fluorinated ether polymer effectively forms coatings with improved stain resistance, anti-fingerprint, and anti-scratching properties, enhancing the compatibility and production efficiency of fluorinated polymers for industrial applications.
Implementation Method 1
They are cured by either exposing to ultraviolet light
Implementation Method 2
heated to form a hard coating
Data Source
AI summary
The embodiments herein relate to a fluorinated ether polymer which is capable of forming coatings with stain resistance, anti-fingerprint and anti-scratching properties. The polymer may be cured with multiple measures, therefore it has a variety of applications in coating and ink industry. The fluorinated ether polymers of the embodiments herein may be added into coating formulations to decrease the surface energy of resulting coatings. It is also feasible that the fluorinated ether polymers of the embodiments herein are used as the main resin component in coating formulations. The embodiments herein also relates to a method for manufacturing the polyester resin, and the use of the polyester resin in industries.