Chemically process inorganic silicon such as silica in nature to turn it into organic silicon such as polysiloxane, and it will become a new type of chemical material. With the development of science and technology, countries around the world have developed more than 20,000 silicone products. For example, actors’ makeup props, breast augmentation and plastic surgery, artificial fur coats, fruit preservation, etc.
Silicone rubber has many uses. Some people call silicone materials "pervasive" materials. In fact, it is not an exaggeration. Silicones are widely used in national defense and military, as well as in light industry, construction, medical and other industries.
1. Makeup and plastic surgery
Silicone rubber used by actors for makeup is a type of silicone material. In the past, actors used latex materials for makeup, but now everyone knows that silicone rubber is far easier to use than the former. It has excellent high and low temperature resistance and can still maintain its original properties at -60℃-200℃. It is non-toxic, tasteless and non-irritating to the human body.
Silicone rubber is used for plastic surgery, and the effect is also very magical. For example, if a woman with a flat area on her face asks for plastic surgery, the doctor does not use a scalpel. He just picks up a syringe and injects the silicone plastic injection under the skin of the patient's flat area. After a few dozen minutes, the injection will solidify in the body. The patient's defective parts can then return to normal.
2. Sealing and plugging
Using silicone rubber as high-temperature sealing material instead of asbestos is also an effective measure to eliminate problems such as run-off, leakage, dripping, and leakage. Moreover, the adhesive force of silicone is particularly strong, and it is also a powerful helper in interior decoration design. When doors and windows are not sealed, applying silicone to the gaps can effectively block leaks. Today, silicone materials are used in all hotels, restaurants and large buildings, and their dust-proof and leak-proofing effects are very obvious.
3. Keep fresh
The storage and preservation of vegetables, fruits, grains, eggs and other foods has always been a vexing problem. Because this type of food needs air for them to breathe (inhale oxygen and exhale carbon dioxide), but if left for a long time, they will easily lose moisture and become rotten. If a modified atmosphere film is made of silicone and put on fruits and eggs, the pieces of the modified atmosphere film will be like small windows, which can not only make the air in the bag smooth, meet the needs of food breathing, but also prevent the bag from breathing. The water inside is lost.
According to measurements, it can regulate 3%-5% of oxygen content and 4%-6% of carbon dioxide content. In such plastic bags, the storage period of apples can be extended three times, the good fruit rate of tomatoes can be increased by more than twice, and the good fruit rate of garlic sprouts can even reach 99% and can be stored for 10 months! Rice can also maintain a certain degree of freshness after storage.
4. Add light and soften
When you go to the mall to buy clothes, you must have noticed some fiber fabrics and chemical fiber velvet coats, which look bright and shiny and feel soft to the touch. On the contrary, some pure cotton fabrics do not feel very good to the touch. It turns out that if those chemical fiber fabrics are treated with silicone hydroxyl emulsion, they can have a very high flash point and low freezing point. Silicone hydroxyl emulsion is a type of silicone. People often call it silicone oil. It has similar characteristics to silicone rubber. As long as the sewing machine thread is treated with silicone oil, it will not break easily no matter how high the speed is.
5. Eliminate bubbles
In addition, silicone oil also plays a great role in eliminating foam in industry. Many industrial products will produce a large amount of foam due to chemical reactions during the production process, and these foams will affect the quality and output of the product. If you add a small amount of silicone oil, the foam will disappear immediately without a trace.
Defoaming agents can also be used to treat diseases. For example, pulmonary edema is a complication that most heart disease patients tend to develop when they are critically ill. When the patient's lung exudate increases, the foam will also increase sharply. Too much foam will aggravate hypoxia and promote alveolar necrosis, so the exudate will further increase. Such a vicious cycle will lead to the death of the patient. Defoaming agents made of silicone oil can eliminate foam in the patient's lungs, interrupt this vicious cycle, and bring the patient out of danger.
6. Protect monuments
There are countless very precious ancient buildings and cultural relics across the country. As time goes by, most of them have been damaged to varying degrees by the erosion of wind and rain. Silicone comes in handy here too. Silicone resin is a type of organic silicone. It not only has the characteristics of silicone rubber and silicone oil, but also has very excellent insulation properties. This kind of insulation performance means that it does not react chemically with other substances in the air, which will effectively resist the corrosion of acidic gases.