Antistatic tape detection
First, point-to-point resistance and system resistance test
The temperature and humidity conditions during the test were: temperature: 23 ± 3 C, relative humidity: 40% - 60% ± 5%.
Check that the device under test and the megger electrode are clean. If necessary, clean with a soft cloth dampened with 70% isopropyl alcohol.
Place the sample to be tested on the insulation board, and then insert the micro-meter's mini-electrode into the jack of the megohmmeter according to the color.
The mini electrode is evenly pressed to half, and the 10V file of the megohmmeter is recorded for testing. If the reading is <1.0×10^7 ohms, continue the test with this file. If the reading is >1.0×10^7 ohm, replace it with 100V. File for testing. Wait for the reading to stabilize the reading to complete the test. Use the same procedure to take multiple locations on the sample to be tested for testing.
Second, the friction voltage test
The friction is used to triboelectrically electrify and the frictional electrification voltage is tested using a non-contact electrostatic voltmeter. The frictional electrification friction electrode is cylindrical, with a diameter of 50mm to 60mm, a weight of 1kg, a volume resistance of more than 1×10^13 ohms, and is wrapped with a high-insulation nylon cloth (surface resistance not less than 1×10^13 ohms) to increase friction. coefficient. During the test, the friction motor was started to rub the friction electrode with the object to be measured, and the one-way friction was stopped 20 times (time 20 s), and the friction trajectory electrification voltage was tested with a non-contact electrostatic voltmeter within 10 s. (Marking SJT 10694-2006)
Take a sufficient length of the sample to be tested and attach it to the insulation board, and connect the static voltage meter ground cable to the common ground point. Turn on the static voltmeter and first reset the static voltmeter to zero according to the operating instructions of the table. Place the probe of the static voltmeter close to the sample to be tested 2 cm. After the reading is stable, read the reading and record. If the static voltmeter is infrared-sensitive, adjust the distance between the static voltmeter and the measured object, and start reading after the two infrared dots are combined into one infrared point. When testing the static voltage of the friction, adjust the voltmeter probe to a suitable distance according to different voltmeter types. Rub the sample to be tested with the electrostatic glove for about 20 times, then read and record the maximum reading of the voltmeter.
Friction static voltage and static voltage standards: determined according to different EHA levels, level 1 <100V, level <2000V.
Third, the separation voltage test
Ground the grounding cable of the static voltmeter and fix the sample to be tested on the tape support.
Quickly tear the tape and bring the voltmeter close and secure the sample to be tested on the tape support.
Separation voltage standard: determined according to different EHA levels, level 1 <100V level <2000V.
The remaining samples were tested in this way.
If testing with a charge analyzer, first adjust the mode to “Field Meter” and remove the electrode plate. Tear off the tape to be tested and place it over the sensor, then read and record in KV/M.