Application range of constant temperature holding force testing machine for pressure sensitive adhesive tape

CNY-10H Constant Temperature Tape Retention Tester Application range: designed and manufactured in accordance with GB 4851 (Pressure-sensitive adhesive tape retention test method), patch adhesion measurement method, suitable for pressure-sensitive adhesive tapes, self-adhesives, stickers The stickiness test is carried out for products such as ointment and hot sol
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Test principle: hang the test board with the adhesive sample vertically on the test frame, and hang the weight of the specified weight at the lower end.
The ability of adhesive specimens to resist pull-off
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Design standard: YY0852-2011 Disposable sterile surgical film GB 4851 Test method for pressure-sensitive adhesive tape hold-up JIS Z0237 Test method for pressure-sensitive adhesive tape and pressure-sensitive adhesive sheet ASTM D3654 Pressure-sensitive tape shear adhesion test Method Operation method: 1.
After removing the outermost 3-5 circles of adhesive tape from the adhesive tape test roll, unwind the test roll at a rate of about 300 mm/min (for sheet-like samples, peel off the tape at the same rate.
Separation layer), every 200mm or so, cut a sample with a width of 25mm and a length of about 100mm in the middle of the adhesive tape
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Unless otherwise specified, the number of samples in each group shall not be less than three; 2.
Scrub the test plate and the loading plate with a wiping material dipped in cleaning agent, and then carefully dry them with a clean gauze, and repeat the cleaning three times
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above, until the working surface of the board is clean by visual inspection
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After cleaning, do not touch the working surface of the plate with hands or other objects; 3.
Under the conditions of temperature 23℃±2℃, relative humidity 65%±5%, according to the size specified in Figure 2, place the sample parallel to the plate surface.
Glue lengthwise to the middle of the adjacent test and loading panels
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Roll on the sample with a pressure roller at a speed of about 300 mm/min
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Note that when rolling, only the force generated by the mass of the pressing roller can be applied to the sample
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The number of rolling can be specified according to the specific product conditions.
If there is no regulation, then roll back and forth three times; 4.
After the sample is pasted on the board, the temperature should be 23℃±2℃, and the relative humidity should be 65%±5%.
placed under 20 min
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The test plate is then fixed vertically on the test stand of the instrument, and the loading plate and the weight are gently connected with pins
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5.
Place the instrument horizontally, turn on the power switch, heating switch, and fan switch in turn, and press the raised part on the timer to reset the time
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The instrument will automatically start up according to the preset temperature until the temperature in the test box is constant to the set value; 6.
After the specified time, remove the heavy objects
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Use a graduated magnifying glass to measure the sliding displacement of the sample, accurate to 0.
1mm; or record the time when the sample falls off the test plate
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If the time is greater than or equal to 1h, the unit is min, and the unit is s if it is less than 1h
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Tag: Thermostatic tape holding force testing machine