What causes the yellowing of PET Zipper Braided Sleeve?

The environment is an important factor affecting the yellowing of Pet Zipper Braided Sleeve. As for the environment in which the yellowing speed slows down or increases, it will be described below. Another influencing factor is the power of the light bar inside the product and the sleeve. Material problem. As for how to solve these troubles, it cannot be completely free of yellowing, but it can be slowed down. That is to solve the problem in a targeted manner. If the product turns yellow, use an anti-yellowing agent. If the yellowing is caused by the product itself, you need to improve the material or properly repair the light bar. s reason.

The first environmental reason: the environment is the most important influence on the yellowing of PET Zipper Braided Sleeve. The yellowing speed is the fastest when used outdoors, the second is in water, and the last is indoors. The outdoor environment is relatively complex, including rainy days, foggy days, and exposure to the sun, and the waterproof light bar must also be varied under complex and changeable conditions. This will cause the product to turn yellow very quickly. For example, it needs to be tested in the exposure environment. The UV resistance of the product requires waterproofing in rainy days and corrosion resistance in foggy days. These are threats to the cable casing, but they cannot be avoided. At this time, it is necessary to make suggestions with the manufacturer of the PET Zipper Braided Sleeve , Tell the use environment of the product, the manufacturer will add anti-yellowing agent according to the actual use of the product to reduce the yellowing speed.
The other is a special case, that is, how to reduce the yellowing speed when the environment is single, such as: PET Zipper Braided Sleeve used indoors and sleeves for lighting of fresh-keeping cabinets. These environments are relatively simple and need to be targeted to prevent yellowing Yellow speed, generally speaking, it is not recommended to add anti-yellowing agent for indoor use. This environment is very suitable for the work of PET Zipper Braided Sleeve. If you have to add it, it will increase the cost and cause excess capacity. It is not worth it. Integrate the above environment PET Zipper Braided Sleeve works better in a single environment, the yellowing speed will be slightly slower (except for special environments such as high temperature, corrosion, humidity), and the yellowing speed will be faster in complex and changing environments, and the solution There are many methods for casing yellowing, such as adding anti-yellowing agent and changing the use environment.
The second is the internal reason of the product: one is that the power of the light bar is too high to generate heat, the heat transmitted by the heat of the lamp bead will be sealed inside the casing by the Braided Sleeve and cannot be evacuated, and the yellowing speed will increase when the temperature is high, especially the lamp bead The yellowing on the top is particularly serious, so that there will be a yellow spot on each lamp bead. In this case, the lamp bar needs to be replaced.
Another internal reason is that the yellowing speed of PET Zipper Braided Sleeve will vary depending on the raw materials used. Highly transparent PET Zipper Braided Sleeve (gas-phase adhesive 70°+) have high transparency, good stability, and good light transmittance, but the yellowing speed It will be slightly slower. Because of the high transparency, as long as there is a little bit of yellowing, it will be magnified on the Cable Sleeve. The surface of the PET Zipper Braided Sleeve produced by ordinary glue is transparent and white, and it will turn white when pulled hard, because it is transparent and white, and if it turns yellow due to heat radiation, it is very obvious from the appearance. It can be seen that the yellowing speed of high-transparency fumed PET Zipper Braided Sleeve is slower than that of ordinary glue, so this method is relatively simple and you can directly replace the material.
To sum it up: It is impossible for PET Zipper Braided Sleeve to not turn yellow at all in terms of the current production process. to change.