In daily life, we will directly or indirectly come into contact with a lot of silica gel products, which bring great convenience to our life.

However, there will still be a lot of people confuse silicone and rubber, in fact, silicone is just one of the materials in rubber, in addition to silicone material, rubber also includes natural rubber, fluorine rubber, nitrile rubber, POLYvinyl chloride, epDM rubber, etc.; So what's the difference between silicone rubber and how do we distinguish them?

Rubber has high strength, insulation, sound insulation, damping, wear resistance, toughness and resilience, with excellent scalability and energy storage ability; Usually used as sealing insulation wear-resistant non-slip parts are applied in the industrial field, such as automobile tires, non-slip seals, wires and cables, rubber plugs, metal bags, etc.; And silica gel belongs to environmental protection non-toxic material, it is insoluble in water and solvent, has excellent softness and dielectric properties, high and low temperature resistance and chemical corrosion resistance, convenient cleaning and long life; Often used as daily necessities, maternal and child kitchenware, medical equipment accessories, adult products, protective covers, key caps and other products. The following is lanxin Rubber and Plastic Co., Ltd. to bring you four ways to distinguish silicone rubber.

According to the weight

Even if two silicone rubber products with the same size, appearance and color can be compared and analyzed by weighing, because the density of silicone material is much lower than that of rubber material.

Low temperature resistant

By placing silicone products and rubber products in a low temperature environment for three to five minutes, feeling the hardness between the two in a specific low temperature environment, the softer is silicone material, and the harder is rubber material. For example, the same high temperature and oil resistant silicone and fluorine rubber products in a -40℃ environment, fluorine rubber feel is far harder than silica gel.

High temperature resistant

By putting silica gel and rubber into a high temperature oven for more than three hours of curing comparison: silica gel in the second high temperature after baking can not only completely remove the smell, but also can discharge the impurities inside the colloid to reach the food grade silica gel standard; At this time of rubber not only resilience can decline, there will be obvious pungent smell, and even there will be fracture phenomenon.

Combustion method

By high temperature combustion silicon, rubber products, we can through the analysis it is concluded that the material of products, for example, the silica gel is burning white smoke burn will produce white powder, and rubber is most smoke, epdm, natural rubber in the combustion flame is small, nitrile rubber, PVC fire will fire when burnt splash, Fluorine rubber, chloroprene rubber, chlorinated polyethylene rubber in combustion will appear self-extinguishing phenomenon.