Silicone has two physical states: one is a flowing liquid and the other is a solid. The silicone that flows like water in visual appearance is called liquid silicone rubber; Of course, liquid silicone rubber has a certain viscosity and is usually denser than water, so its fluidity is not as strong as water. Liquid silicone rubber will undergo a curing reaction when encountering curing agents or catalysts. Depending on the type of liquid silicone rubber, it will solidify into solid silicone with different hardness and performance.
Liquid silicone rubber type
Liquid silicone rubber can be divided into the following 8 types based on its performance and usage:
1. Mold silicone
Liquid silicone rubber for molds is a new type of molding material, and silicone molds made from mold silicone have significant advantages in production efficiency and production cost compared to steel molds. Nowadays, mold silicone has been widely used in the toy industry, character reproduction, building decoration and decoration industry, unsaturated resin handicraft industry, simulation animal and plant sculpture, Buddha carving handicraft and other industries for mold making, and Boli industrial products.
2. Transfer printing silicone
Transfer printing liquid silicone rubber is used to make transfer printing heads, mainly used for printing plastic toys, electroplated products, electronic toys, trademarks, and irregular patterns. Transfer printing adhesive head is to use the pattern on the steel plate as a carrier through the adhesive head, and then transfer the pattern on the steel plate onto toy products. The hardness of transfer printing liquid silicone rubber can be controlled by adding silicone oil.
3. Electronic sealing silicone
Electronic sealing liquid silicone rubber is mainly used for sealing electronic products. By using electronic sealing liquid silicone rubber, electronic products can be sealed, waterproof, dustproof, thermally conductive, shockproof, and insulated. In addition, one type is the sealing adhesive used for LEDs, which has the characteristics of high transparency and high refractive index.
4. Hand board silicone
Hand board liquid silicone rubber, also known as first board silicone, is commonly used to make hand board models. Compared to hand board oil mud, hand board liquid silicone rubber has the characteristics of wear resistance and strong rebound force after curing.
5. Silicone adhesive
Silicone adhesive is commonly known as glass adhesive, and it is also a type of liquid silicone rubber. Silicone adhesive adds curing agents in an disorderly manner during use, and when it encounters water molecules in the air, it can solidify into a tough solid, thereby achieving adhesion between glass gaps. The cured silicone adhesive has the characteristics of weather resistance, vibration resistance, moisture resistance, odor resistance, and adaptability to large changes in temperature and cold.
6. Clothing label silicone
After the liquid clothing label is cured with silicone, we often see silicone labels from clothing merchants. The use of liquid silicone rubber to make clothing labels has the characteristics of good hand feel, wear resistance, and high production efficiency.
7. High temperature silicone
Ordinary high-temperature liquid silicone rubber can withstand high temperatures between 200 and 300 degrees Celsius when used in the production of silicone molds, while in industries such as aviation and hot stamping, high-temperature liquid silicone rubber can work for a long time in environments ranging from 400 β to 1300 β without any performance changes after curing.
8. Human silicone
Human liquid silicone rubber is a type of liquid silicone rubber with low curing hardness, which is non-toxic and has no adverse effects on human objects. Therefore, it can be implanted into the human body and is usually used to make prosthetics. It can also be used for simulating characters, etc.
Regarding silicone rubber, please check the details:
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