PU Steel Wire Duct Hose Causes Yellowing
Many customers who use PU Steel Wire Duct Hose know that after a period of use, the hose will yellow, mainly because of the following:
1. The source of ultraviolet radiation is mainly sunlight. Therefore, especially for customers who use it outdoors, we will recommend the use of PU Steel Wire Duct Hose with a certain amount of ultraviolet absorber material, which can effectively absorb ultraviolet To prevent the hose from turning yellow. In addition, when not in use, it should be stored in a dark room and closed with black-out curtains to avoid direct contact of the hose with sunlight.
2. The oxidation of the material is affected by heat and oxygen molecules. The material will oxidize over time, and the heat will accelerate the oxidation process of the material. After the peroxide structure is formed, free radicals are easily formed, causing the transparent, light-colored, and white materials to change color. The destruction of unsaturated diene materials by oxygen is more obvious. In addition to the activation of oxidation, the effect of heat can also lead to the breakage of the -C-C- bond and the breakage of the double bond leading to the material yellowing.
PU Steel Wire Duct Hose is very transparent when it is first produced, and after storage for a period of time, it will basically oxidize yellowish, the better the material yellowing phenomenon is less obvious, so when the customer receives the goods sometimes compared Transparent, sometimes yellowish, this is not a quality problem, but caused by the oxidation of the material, which does not affect the use at all.