Anti-pollution
Improving anti-pollution property of Unsaturated Polyester resins with MODIPER® F246
Water and Oil repellent of Unsaturated Polyester resins can be improved with adding MODIPER®
F246.
Consequently, water stains and oil stains can be removed easily.
Preparation of test plaque
■ Composition
| material | Compound | Formulas (part by weight) |
|---|---|---|
| Resin | Unsaturated polyester resin | 70 |
| Low Profile additive | Polystyrene 1) | 30 |
| Inorganic filler | Calcium Carbonate | 160 |
| Release agent | Zinc Stearate | 4 |
| Thickener | Magnesium Oxide | 2 |
| Curing agent | PERHEXYL A 2) | 1.4 |
| Retarder | Benzoquinone 3) | 1 |
| Anti-pollution agent 4) | MODIPER® F246 | 2 |
| Reinforcing material | Glass fiber | 28 |
- 1) 30wt.% styrene solution
- 2) t-hexyl peroxyacetate of NOF CORPORATION
- 3) 5wt.% diethylene glycol solution
- 4) weight of active element
■ Aging condition
- ・Condition : 40℃×24h
■ Molding condition
- ・Equipment : Compression molding machine
- ・Mold temperature : Upper/Lower=140℃/130℃
- ・Pressure : 10MPa
- ・Curing time : 5min
Test method and criteria
Anti-pollution property was evaluated from residual rate of water scale after wiping off the scale which was simply created with aqueous solution containing pigment.
- ・Testing standard : static contact angle measurement (JIS R 3257 (1999))
- ・Test device : contact angle meter Drop Master 500 (Kyowa interface science Co., Ltd.)
- ・Procedure : measure the contact angle 30sec after dropping water or solvent on surface.
- ・Test solvent : Water, Oleic acid
Test result
Static contact angle was improved with adding MODIPER® F246, and Anti-pollution property was also improved consequently.
