The acid and alkali resistance of PVC tempered film can first form a stable barrier when it comes into contact with sweat, preventing the acidic components in sweat from corroding the screen. Human sweat contains acidic substances such as lactic acid and uric acid. Long-term contact with the screen may corrode the coating on the surface of the screen, causing the screen to lose its gloss or spots. The PVC material itself has good chemical stability and is not easy to react with acidic substances. After the tempered film is covered on the screen, it can completely isolate the sweat from the screen, prevent the acidic components from directly contacting the screen, and cut off the corrosion path from the source.
This acid and alkali resistance can prevent the salt in sweat from damaging the screen. After the sweat evaporates, salt crystals will be left. If these salts adhere to the surface of the screen for a long time, they may penetrate into the gaps at the edge of the screen, affecting the sealing of the screen and even damaging the internal components. The surface of PVC tempered film is smooth and resistant to salt corrosion. Salt cannot form a firm attachment on its surface. It can be removed by simply wiping it, and the salt will not have the opportunity to contact the screen, thereby protecting the structural integrity of the screen.
For sweat with oil, the acid and alkali resistance of PVC tempered film can also play a protective role. When the oil in sweat mixes with dust, it is easy to form stains on the screen surface that are difficult to remove, and the oil may dissolve the oleophobic coating of the screen. However, PVC material is inert to oil and will not be dissolved by oil. The special treatment of the surface of the tempered film can also make it difficult for oil to adhere. Even if it is stained with sweat with oil, it can be easily wiped clean, maintaining the oleophobic properties of the screen surface and extending the anti-fouling ability of the screen.
When contacting other alkaline substances, such as hand sanitizer, soapy water, etc., accidentally splashed on the screen, the acid and alkali resistance of PVC tempered film can also provide protection. If these alkaline substances directly contact the screen, they may damage the coating layer of the screen and affect the display effect. The tempered film can resist the erosion of alkaline substances and prevent them from penetrating into the screen surface. Just wipe off the splashed alkaline liquid in time, and the screen will not be damaged, so that users can be more assured in daily use without worrying about accidental contact with chemicals causing damage to the screen.
The acid and alkali resistance can also maintain the stability of the PVC tempered film itself, ensuring that it can play a protective role for a long time. Even if it is exposed to substances such as sweat for a long time, the tempered film will not have problems such as material deterioration, discoloration or cracking. It can always maintain its original physical properties, such as surface hardness and light transmittance, and will not reduce the protective effect due to chemical corrosion, so that the tempered film can provide stable protection for the screen throughout the entire use cycle, reducing the trouble of frequent replacement due to the failure of the tempered film.
In addition, this performance allows the PVC tempered film to maintain its protective ability when used in different environments. For example, during exercise, the human body will sweat a lot, and the tempered film can resist the continuous erosion of sweat; in environments such as the kitchen where it may be exposed to oil and detergent, it can also resist the influence of these substances. No matter how the use scenario changes, as long as there is the protection of the tempered film, the screen can stay away from the threat of acid and alkali substances, maintain a good state, and adapt to diverse use needs.
The acid and alkali resistance of the PVC tempered film also indirectly improves the cleaning efficiency of the screen. Because its surface is not easily corroded by sweat and other substances, and stains are easy to remove, users do not need to use strong irritating detergents to clean the screen, just wipe it gently with a soft cloth. This not only simplifies the cleaning process, but also avoids secondary damage to the screen caused by the use of strong corrosive detergents, making daily maintenance of the screen more convenient and safer.
