Fluorine-Silicone Copolymer Surface Modifier for Resin Compatibility
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Solution Overview
Problem
Existing surface modifiers fail to provide comprehensive properties such as water repellency, oil repellency, antifouling, non-adhesiveness, and abrasion resistance while being compatible with various resins and easy to apply, due to poor compatibility and solubility issues with fluorine and silicone series compounds.
Innovation Solution
A novel addition copolymer containing constitutional units from fluorosilsesquioxane, organopolysiloxane, and addition polymerizable monomers with polymerizable unsaturated bonds, which can be radically cured with ultraviolet rays, enhancing water and oil repellency and antifouling properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fluorine resin is used for water repellency and non-adhesiveness, then water repellency and non-adhesiveness are improved, but compatibility with other resins deteriorates
Solution Approach 1:
The patent combines fluorine resin and silicone resin into a single copolymer structure where fluorinated polysiloxane units provide water repellency while polysiloxane units ensure compatibility with other resins. This merging eliminates phase separation and achieves synergistic effects that neither resin could provide alone.
Solution Approach 2:
The invention creates a composite polymer material at the molecular level by copolymerizing fluorinated polysiloxane and polysiloxane units within the same polymer chain. This molecular-level composite structure integrates the beneficial properties of both fluorine-containing compounds and silicone compounds while avoiding their individual drawbacks.
2Reliability
If silicone resin is used for oil repellency, then oil repellency is improved, but compatibility with other resins deteriorates
Solution Approach 1:
The patent merges fluorine-containing compounds and silicone compounds into a single copolymer where fluorinated units contribute to oil repellency while the polysiloxane backbone maintains compatibility with other resins, achieving both properties simultaneously without phase separation.
Solution Approach 2:
The invention creates a molecular-level composite by incorporating fluorinated polysiloxane units within a polysiloxane polymer chain, integrating the oil repellency of fluorine compounds with the resin compatibility of silicone compounds in a unified structure.
3Reliability
If composite series compound using both fluorine series and silicone series is used, then water repellency and oil repellency are improved, but solubility in ordinary organic solvent deteriorates
Solution Approach 1:
The patent merges fluorine-containing compounds and silicone compounds into a single copolymer structure that maintains solubility in ordinary organic solvents while providing both water and oil repellency, eliminating the need for fluorine solvents through the synergistic integration of both compound types.
4Reliability
If fluorine resin is used for non-adhesiveness, then non-adhesiveness is improved, but adhesiveness to base material deteriorates
Solution Approach 1:
The patent applies local quality by positioning fluorinated polysiloxane units at specific locations within the polymer chain to provide non-adhesive properties where needed, while the polysiloxane backbone maintains adequate adhesiveness to base materials, achieving spatial differentiation of functional 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 copolymer exhibits excellent water and oil repellency, antifouling, and abrasion resistance, and can be used as an ultraviolet ray-curable surface modifier, providing improved compatibility and application ease on various base materials.
Implementation Method 1
a constitutional unit C that is derived from an addition polymerizable monomer and has a group having a polymerizable unsaturated bond on a side chain... can be radically cured with ultraviolet rays
Data Source
AI summary
A polymer containing: a constitutional unit A that is derived from fluorosilsesquioxane having one addition polymerizable functional group in a molecule; a constitutional unit B that is derived from organopolysiloxane having an addition polymerizable functional group; and a constitutional unit C that is derived from an addition polymerizable monomer and has a group having a polymerizable unsaturated bond on a side chain, and optionally containing a constitutional unit D that is derived from an addition polymerizable monomer other than the fluorosilsesquioxane having one addition polymerizable functional group in a molecule, the organopolysiloxane having an addition polymerizable functional group and the addition polymerizable monomer having a functional group capable of introducing a group having a polymerizable unsaturated bond.