This standard specifies the method for determining the resin flow of thermosetting resin-based prepregs, such as carbon fiber, glass fiber, and aramid fiber. The core principle involves simulating the temperature and pressure conditions of the molding process to allow resin to flow out. The flowability is characterized by measuring the percentage of the mass of the outflowing resin relative to the original resin mass under specific conditions. The relevant testing instruments mainly include a hot press or a specialized molding device with heated platens and a temperature control system, an analytical balance with an accuracy of no less than 0.001 grams, and tools for cutting specimens. This method is crucial for controlling the processability of prepregs in composite material molding processes.
| Status | Active | ||
|---|---|---|---|
| CCS | Q23 | ICS | 83.120 |
| Release Date | 2016-06-14 00:00:00 | Implementation Date | 2017-05-01 00:00:00 |
