Unsaturated polyester resins of m-phenylene neopentyl glycol type for light-curing pipe rehabilitation
P92 I-910 Resin-Based Composites Provide Rapid Repair of Drainage Lines in No-Excavation Conditions
Characteristic performance
- Controlled thickening properties
- Controlled process operating time
- Quickly impregnates glass fibers
- The desired size can be obtained
- High long-term service performance retention
typical application
Palatal? P 92 I-910 is particularly suitable for FRP products requiring outstanding chemical resistance and high mechanical strength in tanks, vessels, hydraulic engineering, piping, shipbuilding, corrosion protection and the electronics industry.
Palatal? P 92 I-910 can be used exclusively for the production of glass fiber reinforced prepregs. This prepreg is ideally suited for the rehabilitation of sewer pipes.
Product Indicators
performances | numerical value | unit (of measure) | Test Methods |
---|---|---|---|
exterior condition | Clear/muddy | - | TM_2265 |
Solid content | 55.0-60.0 | % | TM_2033 |
Infrared Drying Viscosity @ 23°C | 500-650 | mPa.s | TM_2013 |
Gel time (25 °C to 35 °C) | 4.5-8 | min | TM_2500 |
Viscosity test: S 2/100 s-1/23°C
Reactivity determined by UV test lamp (300w, Osram)
Typical Properties of Liquid Resins
performances | numerical value | unit (of measure) | Test Methods |
---|---|---|---|
Refractive index, 23°C | 1.5390 | - | 2150 |
flash point | 33 | °C | TM 2800 |
Storage period, protected from light, 25°C | 6 | moon | - |
volumetric shrinkage | 8.0 | % | Pref-VS |
Typical Properties of Pure Resin Casting Body
performances | numerical value | unit (of measure) | Test Methods |
---|---|---|---|
Tensile strength1 | 75 | MPa | ISO 527-2 |
Tensile modulus1 | 3.4 | GPa | ISO 527-2 |
Tensile elongation at break1 | 3.5 | % | ISO 527-2 |
Bending strength1 | 125 | MPa | ISO 178 |
Bending modulus1 | 3.9 | GPa | ISO 178 |
Heat deflection temperature HDT1 | 120 | °C | ISO 75-2 |
Glass transition temperature Tg1 | 140 | °C | ISO 6721-2 |
Unnotched impact strength1 | 20 | kJ/m2 | ISO 179 |
Curing conditions
1, 100g resin with 1.0 ml CHP-NA (Peroxid-Chemie GmbH) and 0.1 ml cobalt isooctanoate solution (1% diluted in styrene). Post-curing: 100°C for 24 hours
Process Operation Guide
- In order for products made with Palatal? P 92 I-910 resin to be non-tacky after curing on the natural molding surface in contact with air, an appropriate additive (e.g., paraffin solution) must be added.
- Palatal? P 92 I-910 can be cured with conventional curing agents and low energy UV light (wavelength 365-420nm). If the resin is not exposed to direct sunlight, the operating time duration can be extended to several hours. Curing where direct sunlight or UV exposure is not required can be achieved by adding 0.5 ml of tert-butyl peroxy-2-ethylhexanoate (e.g., Arkema's Luperox 26 or AkzoNobel's Trigonox 21) to 100 g of resin. The addition of small amounts of peroxide is recommended for all applications where low styrene residues are required. If a small amount of peroxide is added to the resin, it can be post cured at 80oC for a few hours for better performance.