What is the principle of car cooling spray?
2 Answers
Principle of car cooling spray: The cooling spray works by vaporizing after being sprayed, and then the vaporization absorbs heat, taking away the heat from the surface of surrounding objects, thereby providing a certain cooling effect. However, it only works locally and cannot achieve a global effect. The following is an introduction to related content: 1. Ingredients: The main components of car cooling spray include dry ice (solid carbon dioxide), some natural fragrances, and softening agents. 2. Potential safety hazards: (1) It may cause glass to crack. After being exposed to the sun, the surface temperature of the glass is extremely high. Once this rapid cooling spray is applied to its surface, it is likely to cause varying degrees of cracking. (2) The main component of the cooling spray is chemical substances, so it needs to be protected. Avoid direct sunlight and exposure to temperatures above 50°C to prevent explosions.
I often use car cooling spray in summer, and the principle is quite scientific: the sprayed liquid is mainly alcohol, water, or other volatile substances. When you spray it on the seats or steering wheel, they evaporate quickly, absorbing a large amount of heat during the evaporation process, which rapidly cools the surface. This effect relies on physical changes, not chemical reactions. It's super convenient to use, cooling down within seconds, but you should buy high-quality products to avoid pungent odors or damage to the interior. I've tried the ones from supermarkets, and while they increase humidity slightly after spraying, they don’t have much effect on leather or plastic. Remember, spraying on hot surfaces yields more noticeable results, and don’t spray too much to avoid waste.
