With the development of the times, now mobile phones have become an indispensable daily necessities for people. In order to protect the screen, we will stick mobile phone films. There are various mobile phone films on the market. What kind of mobile phone film is qualified? The following is an experiment of Sindin testing a certain tempered film through the SDC-200 contact angle measuring instrument.
Whether it is a hydrogel film or a tempered film, for actual use, how is the anti-fingerprint effect after long-term use? How is the wear resistance?
Mobile phone film quality evaluation standard:
The wear-resisting effect and the anti-fingerprint effect are all tested with a friction-resistant machine, and then the contact angle of the mobile phone film is measured with a contact angle measuring instrument; The contact angle measuring instrument is used for measurement and evaluation after damage. The larger the contact angle, the better the wear resistance and anti-fingerprint effect.
Test Results:
Figure 1 is the measurement data of the initial contact angle of the mobile phone film. The industry standard of the mobile phone film is that when the initial contact angle is greater than or equal to 110°, it is considered a qualified mobile phone film. According to the data on the way, the mobile phone film tested in this test is qualified.
1.png "接触角测量仪测试前数据")
figure 1
Figure 2 is the contact angle measurement data after friction. The experimental standard is the load of 1000g, the number of frictions: 2000 times, the friction head: 1x1 (cm), the test speed of 60 times/min, the friction stroke of 40mm, using Sindin precision contact angle measuring instrument SDC-200S measures the contact angle of the tempered film after friction. The experimental conditions are the same as before the friction. According to the data in Figure 2, the contact angle after friction has a slight change compared with the initial state, but it still meets the requirements and is a qualified tempered film.
2.png "接触角测量仪测试后数据")
figure 2
Finally, through the actual test data of Sindin Precision, I believe that everyone knows how to judge whether a mobile phone film is qualified. When we buy a mobile phone film or a contact angle measuring instrument, we must choose a regular brand to avoid stepping on the pit. If you have any questions about the mobile phone film, you are welcome to send samples to Sindin Precision at any time, we will provide you with professional free testing!