Friction coefficient peeling tester to detect the release force of double-sided adhesive and release paper
Release paper, also known as silicone paper, anti-stick paper. Mainly to isolate the role of sticky objects, such as tape. It is generally required to be peeled off and discarded during use; it is now widely used, mainly tape/label or carrier with adhesive products. There are also many applications in the food, medical, and health industries. In the process of die-cutting, this problem is often encountered. The double-sided tape and the release paper cannot be separated, which easily leads to the scrapping of the double-sided tape and unnecessary waste, and why the double-sided tape and the release paper cannot be separated. What? Solving the problem that the double-sided adhesive and the release paper cannot be separated can be detected by the FPT-03 friction coefficient peeling tester of Jinan Sanquan Zhongshi Experimental Instrument Co., Ltd. The following three series of small stone in the middle of the stone simply introduces the FPT-03 friction coefficient peel tester to detect the release force of double-sided adhesive and release paper. FPT-03 friction coefficient peel tester FPT-03 friction coefficient peeling tester The double-sided adhesive and release paper sample adhesive are faced with the standard test plate, rolled three times with a standard press roll, clamped on the peeling test machine, and peeled off the sample and the test plate in the form of 180°. The force value sensor records the force value during the stripping process, and the average force value divided by the sample width is the peel strength. The instrument has the dual test function of friction coefficient and 180° peel strength, which can test the static friction coefficient and dynamic friction coefficient of various national and international standard methods, and also meet various adhesive composite products, medical patches, release paper, and protection. Determination of the peel strength of small force values ​​for products such as films and mobile phone touch screens. Reference standard: GB/T 2792-1998 standard is applicable to the determination of 180o peel strength of single and double-sided pressure-sensitive adhesive tapes and stainless steel plates, and is also applicable to other materials such as PVC, ABS, PE, etc. experiment procedure: 1 Wipe the test board with a wiping material and then wipe it off with a clean absorbent gauze. Repeat the cleaning three times or more until the working surface of the board is visually inspected for cleaning. After cleaning, do not use hands and other objects. The working surface of the contact plate. 2 Measure the width of the tape with an amount of not less than 0.05 mm. 3 Before preparing the sample, first remove the outer 3 to 5 layers of adhesive tape, and then take more than 200 mm of adhesive tape (adhesive tape bonding surface can not contact hands or other substances). The adhesive tape is bonded to the cleaned test panel. A polyester film or other material having a length of about 200 mm and a width of 40 mm was placed under the other end of the test plate, and then rolled back and forth three times on the sample at a speed of about 300 mm/min by a pressure roller (sample and test plate). No bubbles are allowed at the bond). 4 After the sample is prepared, it should be tested after being parked for 20-40 minutes in the test environment. 5 Fold the free end of the specimen 180o in half and peel the adhesive surface 25mm from the test panel. The free end of the sample and the test plate are respectively clamped on the upper and lower holders. The peeling surface should be consistent with the test machine line. The test machine was continuously peeled off at a descending speed of 300 mm/min ± 10 mm/min, and an automatic recorder was used to draw a peeling curve. 6 When the double-sided pressure-sensitive adhesive tape is bonded to a stainless steel plate or other materials, first remove 3 to 5 layers of the outer surface of the double-sided adhesive tape, and then apply a tape of 200 mm or more to the polyester film, and then Strip the other side of the release paper in accordance with the provisions of 7.3, 7.4, 7.5. 7 When measuring the peel strength of a single-sided pressure-sensitive adhesive tape or a double-sided pressure-sensitive adhesive tape and a sheet, a film, or the like, a sheet, a film, or the like is first attached to a steel sheet, and then tested according to the provisions of 3, 4, and 5. Experimental results: Let us take a look at the normal temperature release force is the release force data obtained by standard test method at normal temperature, the unit is N/25mm, which can be converted into g/25mm. Generally 0.10N/25mm, that is, a peeling force of 10g or less, commonly known as light peeling; O. 20N/25mm, that is, a peeling force of 20g or less, commonly known as medium peeling; 0 . 35 ~ 0.45N / 25mm, that is, 35 ~ 45g of peeling force, commonly known as heavy peeling; 0 . 6O ~ 0.80N / 25ram, that is, the peeling force of 6O ~ 80g, commonly known as heavy peeling; Of course, there are also 0.03 to 0.04N/25mm, that is, a peeling force of 3 to 4g, which is commonly called light peeling; There is also a peel force of 1.00 N/25 mm, that is, 100 g or more, which is commonly referred to as overweight peeling. Conclusion: To solve the problem that the double-sided adhesive and the release paper cannot be separated, the unnecessary waste is reduced. It is necessary to find the reason from the raw materials, the release paper is unstable, the paper density is not good, the coating is uneven, and its anti-seepage force Poor, the glue penetrates into the release paper and naturally cannot be peeled off. During the die-cutting process, some of the products are easily taken up during the waste discharge process, which means that the peeling force is too light and needs to be slightly heavier. If it is not peeling or peeling, resulting in deformation, indicating that the release force is too heavy, you need to use a lighter release force release paper! Therefore, mastering the release force of release paper is also an indispensable project. What instruments are used for the peeling test of double-sided tape and release paper? The FPT-03 friction coefficient peel tester of Sanquan Zhongshi can be used to detect the release force of the double-sided tape and the release paper. For details, please call Sanquan Zhongshi Sales Department. 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