In development Application 1: Antifogging and Antifouling Coating Agents
- Functions
GA and GB polymers provide highly hydrophilic clear coating layer.
Examples of Potential Applications
- Industrial coating agents (antifouling and antifogging, prevents bacteria adhesion and facilitates hydrophilicity)
- Water treatment membranes
- Paints and coatings for the bottom of ships
- Fiber treatment
- Film surface treatment
Antifogging
GB polymers are thin films (maximum of 0.1 μm) with excellent antifogging properties.
Antifouling
Simulated dirt attached to the surface of PET films that have been treated with GA polymers can be washed off with water, without the need for scraping.
1) Oil stains (salad oil and carbon black)
2) Mayonnaise (proteins and oil fat)
Oil stains on PET fabric that has been treated with GB polymers can be washed off without any changes to its texture, just by agitating the fabric in water.
Oil-resistant ink
PET films which has been treated with GA polymers are hydrophilic, so oil-based ink can also be cleanly wiped off with just a damp cloth.
Even wiping off the stain vigorously with a damp cloth will not scuff or peel off the coating film.
Basic Performance
| Item | Unit | RX-6-GA-I5 Reactive type (containing COOH groups) | RX-6-GB-E0 Hydrophobic group-containing copolymer type | Notes |
|---|---|---|---|---|
| Appearance | — | Clear and colorless | Colorless and transparent (slightly turbid) | Visual |
| Nonvolatile*1
0 (Aqueous solution) | 50 (Ethanol/Water) | 150°C for 30 minutes | ||
| Viscosity | mPa·s | Approx. 20 | Approx. 7,000 | E-type viscosity meter, 25°C |
| Weight Average Molecular Weight | — | Approx. 450,000 | Approx. 150,000 | GPC standard PSt conversion |
| Diluent Solvent | Ethanol, Isopropanol (Isopropyl alcohol), Acetone | ← | Visual | |
| Example of Crosslinking Conditions | EPOCROS™ WS700, 5 phr 120°C for 30 minutes | — | EPOCROS™ WS700 Oxazoline-based Crosslinker (Nippon Shokubai product) | |
| Pencil Hardness | 2H | 3B max. | ||
| Water Resistance | Rubbing: No scuffing or tarnishing
Submersion in 60°C warm water: No change to appearance | Rubbing: Peeling occurs
Submersion in 60°C warm water: Whitening occurs | ||
| Base Materials Adhesion
(Grid Peel Test) | No peeling against PET, PES, Glass | ← | PET: Polyethylene terephthalate
PES: Polyethersulfone |
Precautions
- This is a product in development, so please consider separately matters such as conformance to the laws, regulations, and types of standards related to usage.
- The data listed in this page are examples, and are not guarantees of performance.
- Please note that the contents (and specifications) listed in this page may be changed without prior notice
- The Company does not take any responsibility whatsoever for any issues that may arise in relation to the usage of this product, including, but not limited to, that its use will not infringe upon the intellectual property rights of any third party.