High wear-resistant anti-fog coating
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High wear-resistant anti-fog coating
Description
Water contact angle of traditional plastic is over 50°, which fog could easily condense on the plastic surface. Super-hydrophilic surface coated plastic substrate has characteristics of low water contact , easy-to-dew condensation on the surface, and anti-fog effect.
Another super-hydrophilic coated plastic substrate has a non-sticky effect. The surface which placed in outdoor could get dirt easily and affect by rain erosion. After observation, the surface with coating hydrophilic film material is clearer than the original plastic.
Feature
- High hydrophilicity
- Anti-fog
- PMMA based
- IPA solvent based, non-poisonous
- RoHS, REACH certification
- UV curing
Specification
| Item | ISC | Tesr method |
| Viscosity (cp) | 8 ±0.8 | A&D SV-10 |
| Specific gravity | 0.9±0.03 | hydrometer |
| Solid content(%) | 13±2 | crucible |
| Solvent | EAC |
Process condition
| Item | ISC | Note |
| Solution temperature(°C) | R.T | Under dark or yellow light environment 5um,3um,1um filter |
| Coating method | Roller | Dry film thickness = 3~5 um |
| Coating environment-temperature (°C) | R.T | |
| Curing temperature (°C) | 80°C 1min | |
| UV curing | 500~750 mj/cm2 | 365nm UV light |
Performance
| Item | ISC | Test method | reference |
| appearence | transparent | visual | |
| adhesion | 5B | 3M scotch 600 tape | ASTM3359 |
| Water contact angle | <5° | Goniometer | |
| (On PC) pencil hardness | H | 500g | ASTM3363 |
| (On PET film) pencil hardness | 2H | 500g | ASTM3363 |
| Anti-fog test | no fog at all | 80°C water,5cm,15 mins 60°C water,5cm,15 mins |
Reliability test
| Item | Anti-fog result |
| 25°C water for 1 hour (on PC, PET film) | Clear surface, excellent anti-fog |
| 25°C water for 25 hours (on PC, PET film) | Clear surface, excellent anti-fog |
| Boiling water at 100°C for 1 hour (on PC, PET film) | Clear surface, excellent anti-fog |
| 20% NaCI 90°C for 5 minutes (PC, PET film) | Clear surface, excellent anti-fog |
| Sonication in water 3 minutes, 3 cycles (on CR-39, PC) | Clear surface, excellent anti-fog |
| 500 hours of headlight exposure (on PC) | Clear surface, excellent anti-fog |