Features and main purposes:
197 is bisphenol A type unsaturated polyester resin, having dissolved in styrene,With medium viscosity and high reactivity, featuring excellent mechanical properties, relatively high heat distortion temperature and corrosion resistance. Such as ships, chemical equipment and anti-corrosion facilities.
Specification of liquid resin：(25℃)：
| Items | Unit | Testing result | Test Method |
Appearance | --- | Transparent yellowish viscous liquid | GB/T8237.6.1.1 |
Viscosity | Pa·s | 0.40-0.65 | GB/T 7193-2008 |
Acid Value | mgKOH/g | 9-16 | GB/T 2895-2008 |
Geltime | Min（25℃） | 8.6-15.8 | GB/T 7193-2008 |
Shelf life | H（80℃） | ≥24 | GB/T 7193-2008 |
Note: 25°C gel time test: 25°C water bath, adding 1ml peroxide methyl ethyl ketone solution and 2ml iso-octanoic acid cobalt solution into 50g resin
Specification of casting resin(typical value):
| Items | Unit | Test performance | Test Method |
Casting matrix | |||
Tensile strength | MPa | ≥60 | GB/T2567-2008 |
Tensile Modulus | MPa | ≥3000 | GB/T2567-2008 |
Break elongation rate | % | ≥2.0 | GB/T2567-2008 |
Flexible strength | MPa | ≥100 | GB/T2567-2008 |
Flexible Modulus | MPa | ≥3200 | GB/T2567-2008 |
Heat Distortion Temp | ℃ | ≥100 | GB/T1634-2004 |
Barcol hardness | --- | ≥45 | GB/T3854-2005 |
Note: (1) Casting matrix sample is made according to GB/T8237-2005; with temperature of 25°C, curing system: promoter RCA 1.0%, Curing agent M-50 1.5%.
(2) Post-curing treatment of casting matrix: room temperature×24 Hours+60°C×3 Hours+80°C×2 Hours;