What is the production process of liquid silicone?

The production process of liquid silicone mainly includes raw material proportioning, mixing, heating, compression, curing and other steps.

Liquid silicone is a polymer material with excellent heat resistance, cold resistance, weather resistance and chemical stability. Therefore, it is widely used in electronics, automobiles, medical and other fields.

Hanast liquid silicone-coated glass glue CL-26AB-8 is mainly used for platinum system silicone rubber and PA (nylon), metal, polyester, PET (polyethylene terephthalate), bakelite, and epoxy resin. , plexiglass and other base materials thermal vulcanization adhesive.

So what is the specific production process of liquid silicone?

First of all, the production of liquid silicone requires the use of high-quality raw materials. Silica, methyltrichlorosilane, water, etc. are the main raw materials of liquid silica gel, among which silica is the main raw material for preparing silica gel. After silica is crushed and screened, coarse silica powder can be obtained. Then, methyltrichlorosilane and water are mixed in a certain proportion, added to the coarse silicon powder, and stirred evenly to obtain a silica gel precursor.

Next, the silica gel precursor needs to be heated. Put the silica gel precursor into the reaction kettle and heat it to cause a cross-linking reaction at a certain temperature. The cross-linking reaction is a key step in the curing of liquid silicone. The temperature and time need to be controlled to ensure the quality and performance of liquid silicone.

During the heating process, liquid silicone needs to be compressed. The heated silica gel precursor is put into the mold and compressed to form the desired shape under a certain pressure. The compression process requires controlled pressure and time to ensure the shape and size of the liquid silicone.

Liquid silicone needs to be cured. Put the compressed liquid silicone into the curing chamber for curing. The curing time and temperature need to be adjusted according to factors such as the type and thickness of the liquid silicone to ensure complete curing.

In short, the production process of liquid silicone requires mastering key steps such as raw material ratio, mixing, heating, compression, and curing to ensure the quality and performance of liquid silicone. With the continuous advancement of science and technology and the continuous expansion of application fields, the production process of liquid silicone will also continue to be improved and developed.