Toray Advanced Composites in collaboration with Performance Polymer Solutions, now a unit of PROOF Research™, supplies advanced high-temperature composites solutions. P2SI® is a key provider of high-temperature resins. Toray signed an exclusive license agreement with PROOF Research to supply high-temperature prepreg materials consisting of P2SI® resins.
Toray’s Product Line
The following table lists the high-temperature prepregs offered by Toray:
| Product Name |
Resin Type |
Tg |
Cure Time/Temperature |
Description |
| Prepregs |
| RS-8HT |
BMI |
590 °F/310 °C |
120 minutes at 400 °F/204 °C Post cure of 360 minutes at 482 °F/250 °C |
• RS-8HT provides excellent elevated temperature properties with moderate toughness and good moisture resistance
• Also available as an RTM resin |
| TC420 |
Cyanate Ester |
350 °F/177 °C or 610 °F/321 °C with post cure |
3 hours at 350 °F/177 °C Optional post cure at 500 °F/260 °C |
• Very high-temperature service
• Good resistance to microcracking
• Out-of-autoclave processible |
| TC800 BMI+ (NEW) |
BMI |
471 °F/244 °C |
6 hrs at 350 °F/177 °C, followed by 2 hours post cure at 450 °F/230 °C |
• Out-of-autoclave is processible. |
| P2SI® 635LM |
Polyimide |
635 °F/335 °C |
120 minutes at 650 °F/343 °C |
• Low viscosity, non-MDA
• Performance similar to PMR-15 |
| P2SI® AFRPE®-4 |
Polyimide |
700 °F/371 °C |
Call for information |
• High-temperature polyamide |
| P2SI® NRPE |
Polyimide |
690 °F/366 °C |
120 minutes at 700 °F/371 °C |
• Improved AFRPE-4 with better processing (lower pressure)
• Improved hot/wet performance |
| P2SI® 900HT |
Polyimide |
870 °F/466 °C |
120 minutes at 700 °F/371 °C |
• Highest service temperature
• 1500 °F/816 °C short term performance |
| P2SI® Custom |
Various |
500-850 °F/260-456 °C |
Call for information |
• Custom polymers for specific applications
• Call for more details |
P2SI is a trademark of P2SI® and PROOF Research™. Toray Advanced Composites is the exclusive supplier and distributor of P2SI high-temperature prepregs.
Key Characteristics of Advanced High-Temperature Composites
Very high-temperature composites are polymers that can be used in the service temperature range of 232-427 °C. This temperature range is beyond the service temperature of typical epoxy materials and is more related to the service temperatures of metals (Figure 1).
These very high-temperature polymers have high thermal stability, superior chemical resistance, and outstanding mechanical properties.
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Figure 1. Very high-temperature composites are polymers operating in the 450° - 800+°F service temperature environment.
The following are the resins used in the prepregs:
- Bismaleimides (BMIs)
- Cyanate esters
- Benzoxazines
- Polyimides
Applications of Advanced High-Temperature Composites
Toray offers an extensive range of very high-temperature composite materials for challenging applications, including:
- jet engines, ducts, and hot sections
- leading edges on hypersonic vehicles
- heat shields and heat protection systems
- rocket engine nozzles, thrusters, and powerplants
- high-temperature titanium replacement in aircraft and launch vehicles
- military-specific applications
- high-temperature composite tooling.
Conclusion
Advanced composites are increasingly used as an alternative solution to metals in challenging high-temperature applications. Designers have shown interest in these resin systems, to expand possibilities and achieve considerable weight reductions.
Besides providing prepregs, Toray offers an extensive range of high-temperature adhesives, molding compounds, syntactic, and resins.
This information has been sourced, reviewed and adapted from materials provided by Toray Advanced Composites.
For more information on this source, please visit Toray Advanced Composites.