What are the precautions and test methods for environmentally friendly odorless anti-static table mats and floor mats?
1. The ground and rubber sheet should be free of dust, oil, and moisture, and must be clean and dry;
2. Clean the surface to be pasted with 120° gasoline before pasting, and then apply rubber liquid after drying;
3. The ambient temperature requires 25-42, the relative humidity is not higher than 60%, and the general purpose is good;
4. It is better to use coarse grinding wheel, coarse sandpaper, wooden file, etc. to lightly roughen the adhesive surface of the rubber plate (the edge of the adhesive surface must be roughened for 30-50mm);
5. The rubber liquid must be brushed twice with a brush on the ground and rubber plate surface to be pasted, dry for 20-30 minutes, and paste it when it is slightly sticky;
6. If the rubber liquid is too thick and inconvenient for construction, it can be diluted by adding toluene according to the ratio of 10-20% of the rubber liquid and mixed evenly before combining.
7. After the rubber sheet is pasted on the ground, use a round roller weighing more than 5 kg to roll it more than 5 times;
8. Pay attention to ventilation and fire prevention during construction;
9. During the use of the rubber sheet floor, if it is found to be dry and curled due to mechanical operation, etc., the above-mentioned pasting method can be used to subsidize and repair
The measuring instrument is an insulation resistance tester, with a DC open circuit voltage of 500V and a short circuit current of 5mA. The measuring electrode is made of copper or stainless steel into a cylindrical standard electrode with a diameter of 60±2mm and a weight of 2±0.2 kg. The measuring electrode must be treated with oxidation prevention.
1. Place two measuring electrodes 1m apart on the ground, connect the two terminals of the meter to the electrodes, and measure the resistance between the electrodes;
2. Place a measuring electrode on the ground, connect one terminal of the meter to the electrode, and connect the other terminal to the grounding grid of the workshop and warehouse (if there is no grounding grid, it can be connected to the water-filled tap water pipe), and measure the point to Ground resistance value;
3. At least 5 measuring points should be selected for each workshop and warehouse, and the measuring points should be selected in the place where the production workers operate and often move around, and they must be 1m away from the grounding body;
4. Regardless of the resistance value between the poles or the polar resistance, the arithmetic mean value is taken;
5. The ground resistance value of the static conductive rubber sheet is 5X104Ω or 5X104-106Ω; the ground resistance value of the antistatic rubber sheet should be in the range of 106Ω-109Ω.