Today's KNOWLEDGE Share : The temperature and pressure in RTM?
Today's KNOWLEDGE Share
What temperature and pressure is typical in RTM?
As a reference, out-of-autoclave prepregs are cured at 100-150C and 1-3 bar.
Again, the resin system is decisive. With epoxy ones, the most common ones, the curing temperature will be at 70, 80, or 90 degrees.
The good thing is you can play with the activity of the resin.
A very reactive resin means that it actually creates an exothermic reaction. So even if you have the tool at 70 degrees, it probably means that the system is at 100 degrees.
It's curing quicker and at a higher temperature. Still, you don't need to heat up your tool to that temperature because the composite is doing the work.
About pressure: When looking at Light RTM, we are looking at a couple of bars, but when we are looking at the High-Pressure RTM, we can be looking at 5, 6, 7, or 8 bars of pressure.
Source:The Native Lab
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#composites #rtm #epoxy #fiber #prepreg #pressure #temperature
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