Brief introduction of mobile phone case
In the middle and late 1990s, the mobile phone case became popular with the opportunity of slimming. Its types are also diversified with the increase of brand and function of mobile phones, which are divided into leather, silicone, cloth, hard plastic, soft plastic, velvet, silk and other categories according to texture, and there are differences between straight and flip by model. Limited by the model, the applicable categories of mobile phone cases are also different. Straight board can usually use all kinds of mobile phone cases, and sliding folding can only choose leather cases.
Will you let go of the phone case?
Advantages of using mobile phone case
1, protect the mobile phone and prevent hard objects from leaving scratches on the screen or body of the mobile phone.
2, the phone case can be printed in various colors, with a beauty effect!
3. The silicone sleeve can prevent nails from being scratched and worn when they touch the keys for a long time, and has the function of protecting the screen and keys;
4. Silicone rubber sleeve has anti-slip function;
5. Apple mobile phone case also has the function of enhancing the signal, because some mobile phone cases will form a magnetic field after contacting with metal, which will interfere with the mobile phone signal. An insulated mobile phone case can enhance the signal.
Disadvantages of using mobile phone case
1. First of all, it is harmful to mobile phones. As we all know, the mobile phone is also an electrical appliance, which generates heat. If the heat dissipation is not good, the service life will be shortened. According to the survey, mobile phones with mobile phone cases are generally scrapped after more than 2 years.
2. There are rumors that the mobile phone case is carcinogenic. Experts explained that both the process and raw materials may cause cancer, especially the incomplete reaction between plastic additives and polymer intermediates, which will cause cancer, but the online upload is "a bit outrageous". According to reports, benzene, as an organic solvent, is a colorless liquid at room temperature and has obvious fragrance. However, products such as mobile phone cases are not pure benzene, but phenyl polymers, which are basically non-toxic and have volatilized when they leave the factory. Therefore, the use of such products in daily life has little impact on the body.
However, it is undeniable that whether the mobile phone sheath meets the quality requirements determines how harmful it is. In China, TPU/TPE (silica gel) is generally used for the soft shell of mobile phone case, and PC/PC/ABS (plastic) is used for the hard shell. In addition to halogen and benzene, lead dihydrophthalate in plastic products and 2- di (branched and linear) amyl ester in plasticizer are carcinogens. All kinds of mobile phone cases need to add toner, masterbatch, black and so on. Because of their different colors, these substances have an influence on people.
3. Although the harm of a single mobile phone case can be ignored, if there are too many or too long, the cumulative damage to the body can not be ignored.
It can be seen that using the mobile phone case has advantages and disadvantages, so how to use the mobile phone case to avoid harm?
Advantages and disadvantages analysis of six kinds of mobile phone protective cover materials
The texture of common mobile phone protective covers is mainly divided into six categories: silicone, leather case, TPU, metal, diamond and plush.
1: silica gel
Silica gel is divided into organic silica gel and inorganic silica gel. Silicone rubber has high temperature resistance and good insulation, so the selling points of silicone rubber shell are good handle, good waterproof performance and low price. However, due to the slight viscosity of silica gel itself, the dust absorbed unconsciously for a long time is not easy to clean up and the permeability is poor.
2: holster
The leather case is simple but generous, which is very suitable for business people. Its selling point is chic and elegant, does not wear the mobile phone, and has good heat dissipation. In particular, the wallet-type holster mobile phone case can hold cash, bus cards and so on. And it has always been very popular. Artificial leather or fake leather is easy to crack, and leather is durable!
3:TPU
TPU belongs to plastic, and the product is made by injection molding process, which is as soft as silica gel. Generally speaking, the hardness of TPU is harder than that of silicone. In appearance, TPU can be made very transparent. The disadvantage is that the service life is not long, and it may turn yellow after three or four months.
4: Metal
The metal mobile phone case has higher impact resistance than ordinary mobile phones, so it has the ability to resist falling and looks very high-grade. If it is an all-metal mobile phone case, it is conceivable that it will make the mobile phone case heavier and the aesthetics of the mobile phone case will be reduced after wearing it!
5: rhinestones
Most of the rhinestone cases are inlaid with diamonds, which are particularly beautiful and have always been one of the mobile phone cases that girls like. There are also many styles, a wide range of choices, and a luxurious feeling. But some drills are easy to fall off, so pay more attention when choosing!
6: Plush
The advantages of plush mobile phone case are anti-slip, anti-fall and good hand feeling, which is especially suitable for cold winter use. Moreover, most of the plush mobile phone cases are cute and more suitable for girls. The disadvantage is that it is not waterproof, easy to get dirty, and should be cleaned frequently.
How to choose a safe and qualified mobile phone case?
Faced with various styles of mobile phone cases on the market, consumers who pursue individuality and fashion are often indecisive when choosing. Experts remind consumers that as long as they have a certain knowledge of consumption, the mobile phone case can still let you enjoy the fashion with confidence.
When buying this kind of products for the first time, you should pay attention to avoid those mobile phone cases with too bright colors. First of all, don't be too bright, and be careful when it is particularly bright.
The second is the news, which has a pungent smell, or smells disgusting, or chokes your eyes. Be careful.
The third is to touch it by hand, which is too soft and faded, or it is irritating and smelly after touching it, or it is particularly hard and firm after touching it. Be careful with these.
Correct use of mobile phone protective case
1 First of all, try to remove the protective cover when charging, otherwise it will hinder its heat dissipation.
2. Second, when playing large-scale games, try to take off the protective cover, which will also hinder heat dissipation.
3. Third, when going out or walking, try to wear a non-slip protective cover, which can effectively prevent the mobile phone from slipping from your hand or pocket.
4. Fourth, if the protective case is old and can't protect the mobile phone, it should be replaced in time.