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E-mail
keli17@126.com
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Phone
15007658190
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Address
No. 10, Yucheng Industrial Park, Shangtun Juyuan 2nd Road, Liaobu Town, Dongguan City, Guangdong Province
Keli Instrument (Dongguan) Co., Ltd
Introduction to the principle of testing scheme for tensile machine in the protective film industry
Date: 2025-10-10Read: 3
Protective film is widely used in various fields such as mobile phones, tablets, televisions, automobiles, and construction; It has multiple functions such as high transparency, scratch resistance, oxidation resistance, heat insulation, and UV protection. The protective film peeling force tester is an important detection equipment for evaluating protective films. By using this equipment, the peeling force of the protective film can be effectively understood, and the adhesion performance of the protective film under different conditions can be ensured, achieving effective protection of materials from external damage.
The testing principle of the protective film peeling force tester:
The sample is clamped between two clamping heads of the fixture, and the two clamping heads move relative to each other. The force value sensor located on the moving clamping head and the displacement sensor built into the machine are used to collect the changes in force value and displacement during the test process, thereby calculating the performance indicators such as tensile strength, tearing strength, and deformation rate of the sample.
The PSA series peel strength testing machine produced by KELIINSTR can be used to detect peel strength. It is a professional tensile testing machine suitable for testing the peel and tensile properties of adhesives, adhesive tapes, stickers, medical patches, protective films, release papers, composite films, synthetic leather, woven bags, films, paper, wires, rubber adhesives and other related products. By using different fixtures, tensile, compressive, bending, peeling, tensile, compressive, fatigue, compression, shear, tear and other tests can be conducted.
The steps for peel strength test are as follows:
(1) Place the sample in an environment of 23 ± 1 ℃ and 50 ± 5% RH for 24 hours of state adjustment.
(2) Wipe the surface of the stainless steel plate with acetone (or anhydrous ethanol) four times and let it air dry for 10 minutes.
(3) Cut a sample with a width of 24 mm and a length of 300 mm.
(4) Stick the other end of the sample onto one end of the steel plate and roll it back and forth three times with a rolling machine at a speed of 600 mm/min.
(5) In the upper and lower fixtures of the peel strength testing machine.
(6) Set parameters such as test speed (300 mm/min) and sample width (24 mm), click on the test option, and the test will begin. The equipment will automatically record the force values during the peeling process and report the peeling strength of the sample accordingly.
(7) Repeat steps (3) - (6) regarding sample cutting, preparation, and testing, and test the peel strength values of three samples.
Protect materials from external damage. By detecting the peeling force of the protective film, it can effectively ensure that the protective film does not accidentally fall off or damage during the protection process, and improve the service life of the product. By using this device, the peeling force of the protective film can be quickly detected, avoiding production waste; Improve production efficiency, optimize product design, and enhance usage