This standard specifies a systematic method for determining the gel time of prepregs. It applies to the evaluation of thermosetting resin prepregs reinforced with carbon fibers, glass fibers, or aramid fibers, and is crucial for controlling the composite material molding process. The core instrument for performing this test is a specialized gel time tester, which typically features constant temperature control, automatic stirring, and automatic gel point determination and alarm functions. The standard also specifies requirements for other equipment, such as analytical balances. Additionally, techniques such as rheometers are commonly used in the industry for more precise measurements.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | Q23 | ICS | 83.120 |
| Release Date | 2016-06-14 00:00:00 | Implementation Date | 2017-05-01 00:00:00 |
