First, the difference from the appearance and feel:
1, the fake silicone rubber wristband is easy to deform, and the real silicone rubber will feel the rebound is very good, and the tensile deformation is small.
2, if the real silicone rubber surface is not specially treated, the hand will feel the contrast lubrication, because there will be a layer of grease on the outer surface.
3, the appearance of silicone rubber is easy to stick to impurities such as dust and hair.
Two.Combustion comparison method:
1. The margin of the fake silicone rubber wristband is black after the fire, and the real silicone burning margin is white no
matter what color, and the incineration residue is powder.
2. The fake silicone rubber wristband is burning with open fire, black smoke and foul odor. The real silicone rubber wristband is like carbon burning, and the flame is uniform. White smoke, tasteless.
Third, solution method:
Incinerate silicone rubber and touch the smoke with a surface dish, collect the white powder, dissolve the powder in a hot solution of 40% sodium hydroxide (60 degrees), take a drop of the solution into a test tube, add two drops of ammonia molybdate, gently heat it, cool it, add a drop of aniline solution and 3-8 drops of full sodium acetate solution, and observe the color response of the solution. If it appears blue, it indicates that there is silicon element. Proof is silicone rubber.
The above three methods can identify the true and false silicone rubber bracelet for you!
