What Is Organic Silica Gel?

Organosilicone refers to a compound containing a Si-C bond and at least one organic group is directly bonded to a silicon atom, and it is customary to also use a compound which connects an organic group to a silicon atom through oxygen, sulfur, nitrogen, or the like. As an organosilicon compound. Among them, polysiloxanes composed of silicon-oxygen bonds (-Si-O-Si-) are the most widely studied and most widely used organosilicon compounds, accounting for more than 90% of the total dosage. .

Silicone materials have a unique structure:

(1) A sufficient methyl group on the Si atom shields the high energy polysiloxane backbone;

(2) C-H is non-polar, making the intermolecular interaction force very weak;

(3) The Si-O bond has a long length and a large Si-O-Si bond angle;

(4) The Si-O bond is a covalent bond having a 50% ionic bond characteristic (covalent bond has directionality and ionic bond has no directivity).

Morphological classification:

Can be divided into: (silicone chemical reagents), silicone oil (silicone grease, silicon emulsion, silicon surfactant), high temperature vulcanized silicone rubber, liquid silicone rubber, silicone, composites and so on.

(Hot vulcanized) silicone rubber and room temperature vulcanization (including low temperature vulcanization) silicone rubber two major categories.

Due to its properties with organic materials, it has basic properties such as low surface tension, low viscosity coefficient, high compressibility and high gas permeability. It has high and low temperature resistance, electrical insulation, oxidation resistance, weather resistance, flame retardancy and water repellency. Excellent in corrosion resistance, non-toxic, tasteless and physiologically inert. It is widely used in aerospace, electrical and electronic, construction, transportation, chemical, textile, food, light industry, medical and other industries. Silicone is mainly used for sealing and bonding. Lubrication, coating, surface activity, demoulding, defoaming, foam suppression, waterproof, moisture proof, inert filling, etc. With the continuous growth of the number and variety of organic silicon, the application field has been continuously expanded to form an important product system unique to the chemical new materials industry. Many varieties are indispensable and indispensable for other chemicals.