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On the market a variety of protective film, many people will feel difficult to choose, the following to give you a popular science: protective film according to different materials can be divided into several:
The protective film of PP material is the first to appear on the market, the chemical name is polypropylene, without any adsorption ability, generally use glue to stick, tear off will leave glue mark on the screen, time will corroded the screen.
PVC material protective film texture soft, and easy to paste, but this material is relatively thick, poor transmittance, resulting in the screen looks hazy, tear off will also leave glue mark on the screen. At the same time, this material is easy to turn yellow and oil with the change of temperature, and its service life is relatively short. You can hardly see it on the market.
PVC improved version of the protective film, solve the previous thick and poor light transmittance problem. However, it still fails to solve the problem of easy turning yellow and producing oil. Moreover, the material of PVC does not have the ability of resisting scraping, and obvious scratches will appear on the protective film after being used for a period of time, which will affect the display effect of the screen and the overall aesthetics of the phone. In addition, PVC itself is a toxic material containing heavy metals, which has been completely stopped in Europe.PVC improved version of the screen protection film material in the market is more widely sold, the price is cheap, generally around 10 yuan.
PET is the most common protective film on the market, which is used for mobile phones and tablets. The chemistry is called mylar. Features are hard texture, more resistant to scraping, long time use will not be like PVC material like turning yellow oil. But generally, the protective film of PET relies on electrostatic adsorption, which is easy to bubble and fall off. However, even if it falls off, it can be reused after washing in clean water.PET material protective film is much more expensive than PVC.The PET protective film is exquisite in workmanship and packaging. There are protective stickers specially made for hot phone models, which can be used directly without cutting.
AR material protector is the best known screen protector in the market.AR is a synthetic material, generally divided into three layers, silica gel as the adsorption layer, PET as the intermediate layer, and outer layer as the special treatment layer. The special treatment layer is generally divided into two types: AG treatment layer and HC treatment layer. HC is a hardness treatment, which is the treatment method used for high light transmittance protective film. This screen protective film is characterized by non-reflective screen, high light transmittance (above 95%), which will not affect the display effect of the screen. Material surface through special craft processing, itself a soft texture, has a strong resistance to friction and scratch resistance. Used for a long time also won't appear scratches, paste on the chemical material silica gel adsorption on a mobile phone screen, so as not to harm the screen itself, tear off after won't leave a mark, but also can be reused after cleaning. The price is more expensive than the PET material.
The main raw material of PE material is LLDPE, which is soft and has certain tensile properties. Generally, the thickness is 0.05mm to 0.15mm, and its viscosity varies from 5G to 500G according to different application requirements (the viscosity is classified differently at home and abroad, for example, 200g of Korean film is equivalent to about 80g of domestic film).PE material under the protection of film projects there are electrostatic film, mesh film, etc. Electrostatic film is to electrostatic adsorption as adhesive force, is a protective film without glue, of course, relatively weak viscosity, mainly used in electroplating and other surface protection. Mesh film is a lot of mesh on the surface of a protective film, this protective film permeability is better, paste effect is more beautiful, unlike plain film will leave bubbles.
OPP protective film is similar to PET protective film in appearance. It has greater hardness and certain flame retardancy. However, its paste effect is poor and it is rarely used in the general market.
The OCA protective film is no different from other materials in appearance, but the OCA protective film is produced in Japan, which is now used most in apple phones, and it is better than other materials in terms of luminosity and hardness, so OCA is the most popular material for mobile phone protective film.
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