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2023-03-09 0 Views

Method of testing steel plate peel test by tensile testing machine

Method of testing steel plate for peel force, method of testing steel plate for tensile testing machine, method of stainless steel plate for tape peeling, method of measuring 180° peel strength of pressure-sensitive adhesive tape for tape3VYTextile Testing Instruments, Testing Equipment Manufacturer

1. Scope: This The standard specifies the method for measuring the force required to separate the pressure-sensitive adhesive tape and the film to which it is attached after the peel process. When the pressure-sensitive adhesive tape and the adhesive surface are sheet or foil materials, the stainless steel mirror surface test plate for tape peeling, the stainless steel mirror surface test plate and the 304 stainless steel test plate for tape are used for measurement.

Principle 2: By applying a load in the 180° peeling process, the pressure-sensitive adhesive tape applies the force required for a specific tear-off speed on the bonded material.

3. The rubber hardness is 60°±5° and the thickness is 6mm. The MAsse of the pressure roller is 2000 ± 50 g. Testing machine The tensile testing machine should meet the requirements for evaluating the testing machine in JB 706-77 Technical requirements for mechanical tensile testing machines.

4. Sample tape: The width of the tape is 20±1.25±1mm and the length is about 200mm. Pressed on a special stainless steel mirror test board. The General Administration of Standards and Standards granted the Ministry of Chemical Industry of the People's Republic of China implementation on August 1, 1982. The Institute of Rubber Products drafted GB 2792-81 Experimental test when the steel plate adhesive tape is pasted on the plate, the surface of the test plate should be flat and should not be used during testing. Bending deformation occurs, and the size of the steel plate is experimentally tested. When gluing the surface plate adhesive tape to the plate and film materials, a mirror test plate should be usedstainless steel are used. Sample preparation Adhering materials, surface treatment methods, parking time after sample preparation, etc. should be carried out in accordance with the requirements of product process regulations. In order to ensure that the tape, taped film and film material maintain a 180° separation angle during the test, use the tape to stick the two sides of the test piece along the longitudinal direction on the mirror stainless steel test plate to detach the tape, Mirror test steel plate, tape test on 304 stainless steel test steel plate.

5. Experimental conditions The laboratory temperature is 23±2°C, the relative humidity is 65±5%. Adhesive tapes and pasted materials should be stored for more than 2 hours under standard conditions.

6. During the experiment, measure the width of the tape with a measuring tool with an accuracy of at least 0.05mm. Peel off the tape, cut off the outer 3-5 layers, and peel off the tape evenly (do not touch hands or other objects within the sticking length), so that the tape sticks to one end of the pasted material , and the clip When the angle is greater than 30°, place a piece of polyester film or other material about 200mm long and 40mm wide under the other end of the bonded material, and then roll it manually onto roller to grip the sample at a speed of about 120 mm/s to roll back and forth three times under its own weight. After the park time specified in the product process regulations has been reached, fold the free end of the sample 180° and peel off the adhesive surface by approx. 10 mm. The data folder is glued to the lower holder and the sample is freely clamped to the upper holder. The peeling surface should coincide with the line of force of the computer servo type tensile testing machine. the trys machine requires 300 ±10mm/min descent speed consecutive stripping. The effective length of the peelable adhesive is about 100mm and the peel curve is reported by automatic recorders.

7. The scale of the test results: In the plotted curves, the AB and CD portions of the curves are not included in the test results. Unit: mm. Calculate the 180° peel unit strength of the pressure-sensitive adhesive tape by the planimeter method, and calculate it using the following formula: the reading method calculates within the range of values ​​of the recorded curve, read no less than 10 readings in a row, and then press the formula Calculate the even 180 ° peel strength of pressure-sensitive adhesive tape. The number of samples representing the same performance should not be less than five, and the experimental results are expressed by the arithmetic mean, maximum, and minimum valuesthe peel strength.

8. Test report:
a. Type of tape, sample delivery date;
b. laboratory temperature, humidity, test date;
c. Adhesive materials, surface treatment processes
d. rolling speed and times;
e.g. Stop time after sample preparation;
f. Damage type and amount of sample;
g. Arithmetic mean, maximum, minimum peel strength;

h. Accounting method for test results.
3VYTextile Testing Instruments, Testing Equipment Manufacturer

3VYTextile Testing Instruments, Testing Equipment Manufacturer

3VYTextile Testing Instruments, Testing Equipment Manufacturer

Wuhan Guoliang Instrument specializes in manufacturing electronic tensile testing machines, universal tensile testing machines and other testing instruments for the Tensile testing machine manufacturers, detectable materials are: rubber, plastic, metal, geotextile, etc. Welcome to the consultation!
3VYTextile Testing Instruments, Testing Equipment Manufacturer