Winter glasses cream good idea: detergent

In winter, many glasses hit the "cream in the glasses" troubles. Outdoor in the cold into a warm room, Discount Oakley Sunglasses are covered with a layer of cream on. On it, there will be some tips on the Inteet, which if it works? Yesterday, the reporter selection 8 legends can relieve or prevent Frost glasses, talking in the experiment, look at these Inteet rumors are true or false.

Test material: aqueous solutions of alcohol, soybean oil, soy sauce, detergent, SOAP, shampoo, SOAP, toothpaste

Test: take the glasses two pairs of different materials, each lens is divided into two regions, 8 of the above-mentioned material evenly coated in the 8 regions on and lens dry and get an outdoor freeze for some time, after the back room, tests the regional Frost went out full time.

First under the survey naturally draws back the frost the time, makes a comparison. Joualists nothing painting of Plexiglas and glass lenses to the outdoor temperature is-11 ° c, glasses in half an hour to get indoors, Oakley Sunglasses Discount on instant cream, after 3 minutes and 15 seconds, Frost was completely receded.

Experimental results

3 hours later, the Frost recedes on the resin surface speed:

Detergent > SOAP > soap > shampoo > toothpaste > soybean oil > sauce > alcohol water solution

After 3 hours, speed went out frost on the glass surfaces:

Soybean oil aqueous alcohol soy sauce dish SOAP shampoo ≈ ≈ ≈ ≈ toothpaste

Expert analysis

Organic coating on the surface of the lens to prevent water condensation

Teachers College chemistry teacher Lou Xian said, will reduce or prevent on glasses cream, because the dish soap, SOAP, SOAP, shampoo, toothpaste and other material containing surfactants, organic film formation on the lens, water condenses on the organic film, but due to the different properties of surfactants, frost effect is different. Soybean oil is a glycerol remonstrates, capable of forming organic membranes; affinity with the lens is not very strong, relatively poor results. And soy sauce with water miscible, frost effect to play, but because the surfactant in soy can form a part of the organic film, so the frosting less effective. Effect of alcohol-water solution is completely without frosting.

Discount Oakleys are tree resin and glass has different effects, Lou Xian said, is because the thermal conductivity of glass itself than resin heat conductivity is good, so after you get inside, resin piece fall frost effect worse than glass.