Litoscreen

Have you heard of  PMMA ? I believe that every friends are very strange to hear this name.  What kind of material is it ? And what are the  characteristics ? Next，Shirley will share some information about PMMA for your reference here. 一、 What is PMMA? PMMA, also known as  plexiglass , is by far the  best quality  in synthetic transparent materials. It is made of acetone, sodium cyanide, methanol, carbonic acid, etc., and is made into methyl methacrylate, and then polymerized, it can be divided into three configurations, atactic, stereoregular, and isotactic structure. These three configurations are divided according to different polymerization mechanisms. PMMA has the ch aracteristics of hard,  non-fragile , highly transparent, weather resistant, chemically stable,  easy to process , beautiful in appearance,  easy to dye and form , and has become a widely used transparent plastic material. 二、The  characteristics  of PMMA (1) The relative molecular mass is relatively hi

Nowadays, the  mobile phone  is getting smarter, although the phone is very smart, the phone life has not kept up with the rhythm. The mobile phone consumes a lot of power, which is really depressing, especially when we are in entertainment, office, and phone calls. When using critical moments, there will always be a low battery condition. This has to be said to be a major drawback of mobile phones, which can only be compensated by  charging cable . The data line can charge the phone for continuous battery life. However, the general data line charging is also very slow, and it can't keep up with the rhythm. In fact, we will not choose a good data cable, the charger cable will also affect the charging speed of the mobile phone. So, do you know how to choose a good charging cable? If you don't know yet, Shirley will provide you three methods for your reference here so that our phones can be  charged quickly and safely . 1、 Data cable interface detection. The same d

Bluetooth earphones  are very popular in recent years, because it's easy operation, and some of them are especially  smart,  so it become to replace our wired headsets. Many people are starting to buy the new earphone for their mobile phone. However, when purchasing a Bluetooth headset, we still need to pay the attention to the following precautions. Otherwise we will regret it because we bought a Bluetooth headphone that is not suitable for us. ​ The first one: Battery life is the lifeline of the Bluetooth Earphone. Nowadays, the Bluetooth headsets are generally waterproof and also not easy to break. In our daily use, the battery life of the Bluetooth earphone is its lifeline. How long it can be used, sometimes closely linked to how much love it can get. Now the products we need to charge are so much, who want to charge an extra headphones every night? Therefore, here shirley suggested that we must choose a  longer battery  life Bluetooth headset. The second one:

Have you ever seen a  rainbow effec t in the tempered glass screen protector? Do you know why  glass screen protector film  have rainbow effect? And how do we eliminate the rainbow effect? 1. What is rainbow effect? Here the rainbow effect we called is a phenomenon that generally appear arise at the surface of  mobile phone screen protector , and it is similar to a rainbow. 2.The harm of rainbow effect The  harm  of tempered glass rainbow effect is that it  reduces the transmittance  of the screen protective film. It also causes the screen protector convey the distortion of the screen color, and affects the our  visual experience. ​ 3.So  why  are there rainbow effect, do you all know the  reason ? There are  two  reasons for the rainbow effect appearing after we installed tempered glass screen film: Firs t, the screen protection film is made of a  multi-layer structure , and when the light is irradiated, the refraction produces a rainbow effect.  On the other

What is  hot-bend tempered glass screen protector  and  cold-engraved tempered glass screen protector ? Nowadays, the  3D curved tempered glass  we know have two types: Hot-bend  and  cold-engarved tempered glass , but how to select the suitable one for our mobile phones? ​ Do you know the different between hot bending and cold carving? From the price, it can be seen that hot bending tempered glass is more cheaper than the cold carving tempered glass? But why? The same is the tempered glass screen protector, with different produced technology, the effect of the tempered glass will be different. Hot-bend tempered glass screen protector is softened by  heating  and then  formed in a mold , and finally annealed, and the yield is higher than cold carving tempered glass. The cold-engarved tempered glass is carefully carved by the  CNC machine , which has a stronger of  craftsmanship  and a  higher quality . The tempered glass screen protector adopts the real scree