Perfluoroalkylethyl Acrylate (often abbreviated as PFAEA or FAEA, with the general structure CH₂=CHCOO(CH₂)₂Rf**, where **Rf = perfluoroalkyl group, e.g., C₄F₉, C₆F₁₃, C₈F₁₇**) is a fluorinated acrylate monomer widely used to impart **oil repellency, water repellency, and chemical resistance** to materials. Its key applications include:
1. Water & Oil-Repellent Coatings
- Textiles: Used in stain-resistant fabrics (e.g., outdoor gear, carpets, upholstery).
- Paper & Packaging: Coatings for grease-proof food packaging (e.g., fast-food wrappers).
- Leather & Footwear: Provides waterproofing without compromising breathability.
2. Fluoropolymer Synthesis
- Copolymers with Acrylates: Enhances surface properties (low surface energy, ~10–15 mN/m).
- Pressure-Sensitive Adhesives (PSAs): Improves chemical resistance in tapes and labels.
3. Anti-Fouling & Release Coatings
- Marine Coatings: Reduces biofouling on ship hulls.
- Nonstick Surfaces: Used in mold release agents (e.g., for rubber, plastics).
4. Electronics & Optics
- Semiconductor Coatings: Protects circuits from moisture and corrosion.
- Optical Fibers: Fluorinated coatings reduce signal loss.
5. Medical & Hygiene Products
- Medical Devices: Blood-repellent coatings for catheters and surgical tools.
- Personal Care: Adds water resistance to cosmetics and sunscreens.
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