What chemicals is PE sensitive to?
Publish Time: 2024-09-25
As a widely used plastic material, PE is sensitive to certain chemicals.First, strong oxidants have a great impact on PE. For example, strong oxidants such as concentrated nitric acid and concentrated sulfuric acid can react chemically with PE, breaking the PE molecular chain and causing the strength and performance of the material to decrease. In the case of long-term exposure to strong oxidants, PE may become brittle, discolored or even cracked.Secondly, aromatic hydrocarbon compounds will also have a certain effect on PE. Some aromatic hydrocarbon solvents such as benzene and toluene can cause PE to swell under certain conditions. Although this swelling usually does not immediately cause material damage, long-term contact may affect the dimensional stability and mechanical properties of PE.In addition, some halogenated hydrocarbon substances may also cause damage to PE. For example, halogenated hydrocarbon solvents such as chloroform and carbon tetrachloride may react with PE under certain circumstances, causing the performance of the material to change.PE is also sensitive to ultraviolet rays. Long-term exposure to sunlight will cause PE molecules to undergo photo-oxidation reactions, causing the material to become brittle and fade, reducing its service life. In order to improve the UV resistance of PE, UV stabilizers are usually added during the production process.In practical applications, it is very important to understand the sensitivity of PE to different chemicals. This helps to choose appropriate storage and use conditions to avoid contact between PE materials and sensitive chemicals, thereby extending their service life and ensuring the quality and performance of the product. At the same time, it also provides a basis for further research and development and improvement of PE materials to improve their tolerance to various chemical environments.
