why do clear phone cases turn yellow：Causes and solutions.
Table of Contents
Introduction
Clear phone cases turn yellow, which is a phenomenon that most people will encounter. What exactly causes clear phone cases to turn yellow? First of all, we need to distinguish the types of transparent mobile phone cases. Currently, transparent mobile phone cases are divided into two types: PC clear phone cases and TPU clear phone cases. PC clear phone cases will not turn yellow, so why do TPU clear phone cases turn yellow?
The gaps between TPU material molecules are too large.
There are large enough gaps between the molecules of TPU, and molecules of other materials can easily penetrate into them. During use, sweat from the hands remains on the surface of the phone case, causing bacteria to penetrate into the middle of the phone case material, resulting in yellowing.
TPU material molecules are easily oxidized when exposed to high temperatures.
TPU mobile phone cases are also products produced by thermoplastic production methods. Therefore, under high temperature and high humidity conditions, such as exposure to the sun, the molecules inside the mobile phone case are heated and produce oxidation reactions, causing the original color and touch to change, resulting in the yellowing phenomenon.
Manufacturer's sales strategy.
Anti-yellowing technology is a mature technology, but some manufacturers do not use this technology on their products. This can increase the life cycle of ordinary users replacing their phone cases, thereby earning more profits.
How to prevent clear phone cases from turning yellow?
1. Buy a mobile phone case with anti-yellowing technology. There are many mature anti-yellowing technologies on the market. When manufacturers produce TPU transparent mobile phone cases, they add corresponding chemical elements to resist the speed of yellowing in the later stage.
2. Directly buy a transparent mobile phone case made of PC material: the molecular structure of PC material is very stable and will not turn yellow.
What should I do if the transparent phone case has turned yellow?
- If your transparent phone case is a TPU phone case, there is only one way to deal with it if it turns yellow: to replace it.
- If your transparent phone case is a PC phone case, you can use various common detergents to clean it if it turns yellow.
