Constant Temperature Tape Retention Tester

Constant Temperature Tape Holding Power TesterCNY-10H

Product Model: CNY-10H

Application Range: Designed and manufactured according to GB 4851 (Test Method for Holding Power of Pressure-Sensitive Adhesive Tapes) and the standard method for determining the adhesion of adhesive plasters. Suitable for holding power tests on products such as pressure-sensitive adhesive tapes, self-adhesive labels, adhesive plasters, and hot melt adhesives.

Test Principle:

The test plate with the adhesive sample attached is hung vertically on the test stand, with a specified weight suspended at the lower end. The displacement of the sample after a certain period of time or the time taken for the sample to completely detach is used to characterize the sample's resistance to being pulled off.

Design Standards:

YY0852-2011 Disposable Sterile Surgical Film

GB 4851 Test Method for Holding Power of Pressure-Sensitive Adhesive Tapes

JIS Z0237 Test Methods for Pressure-Sensitive Adhesive Tapes and Sheets

ASTM D3654 Test Methods for Shear Adhesion of Pressure-Sensitive Tapes

Operation Method:

1. After removing the outermost 3 to 5 layers of the adhesive tape roll, unwind the sample roll at a rate of approximately 300 mm/min (for sheet samples, remove the release layer at the same rate). Cut samples approximately 25 mm wide and 100 mm long from the middle of the tape at intervals of about 200 mm. Unless otherwise specified, the number of samples per group shall be no less than three;

2. Use cleaning material soaked with cleaning agent to scrub the test plate and loading plate, then carefully dry them with a clean gauze. Repeat this cleaning process three times or more until the working surface of the plate is visually clean. After cleaning, do not touch the working surface of the plate with hands or any other objects;

3. Under conditions of 23°C ± 2°C and 65% ± 5% relative humidity, adhere the sample parallel to the longitudinal direction of the plate in the middle of the adjacent test plate and loading plate according to the dimensions specified in Figure 2. Use a pressure roller to roll over the sample at a speed of approximately 300 mm/min. Note that during rolling, only the force generated by the mass of the roller should be applied to the sample. The number of rolling passes can be specified according to the specific product; if not specified, roll back and forth three times;

4. After the sample is adhered to the plate, let it stand under conditions of 23°C ± 2°C and 65% ± 5% relative humidity for 20 minutes. Then, fix the test plate vertically on the test stand of the instrument and gently connect the loading plate and the weight with a pin;

5. Place the instrument horizontally, turn on the power switch, heating switch, and fan switch in sequence. Press the raised part of the timer to reset the time. The instrument will automatically start according to the preset temperature until the temperature inside the test chamber stabilizes at the set value;

6. After the specified time has elapsed, remove the weight. Use a graduated magnifier to measure the displacement of the sample slide, accurate to 0.1 mm; or record the time taken for the sample to detach from the test plate. For times greater than or equal to 1 hour, record in minutes; for times less than 1 hour, record in seconds.

Main Technical Parameters:

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