Analysis of raw materials for silicone products quality

  News     |      2018-10-29 17:19
Silicone molding process repeatedly said so much but did not understand the synthesis and refinement of raw materials for silicone products. In the chemical industry, the synthesis and refinement of solid silicone rubber structure can be regarded as a technical problem. In the past years, the technology was not mature enough. Silicone rubber products technology still fails to meet the technical requirements of certain customers. In recent years, the development of organic silicon technology has spread any industry and products to the front end of the market. As a consumer, you should also synthesize and cure silicone rubber. Have some understanding.

silicone products quality


The raw materials used by manufacturers of silicone rubber products belong to solidified solids, while silicones and silicon dioxide also need to be supplemented with silicones and other reinforcing agents. The main component of these silicones is white carbon black. For the most part, the main ingredient of any silica gel product you use is silica, which is white carbon black. White carbon black can be divided into two different chemical structures: meteorological method and established method. The meteorological method is achieved by burning silicon tetrachloride with air. Silicon has a high fine-grain density and good dispersibility. The method is to use sodium silicate to add sulfuric acid to precipitate silica. The density is scarce, and the dispersion of silicon molecules is poor. The difference between the two is the distinction between gas phase rubber and ordinary silicone rubber.

 

Many friends who understand chemical industry know that silicone rubber is structurally curable, while silica is the main component, and the components are mainly composed of white carbon black, fine molecular weight silicone, and compound reinforcing agent, and they are reinforced. Agent silica is one of the most commonly used reinforcing agents in silicones. In the cured silicone rubber products, mechanical strength, electrolytic strength, and environmental temperature adaptability are all related to the addition of reinforcing agents.

 

The silicone products manufacturers use in the product is solid silicone rubber, which in addition to the synthesis of silica gel raw materials, but also in accordance with the proportion of vulcanizing curing agent to vulcanize to get the finished product, the process is not as simple as you think, here it is There is also a type of weak reinforcing agent, also known as an inert filler, which has a certain reinforcing effect on silica gel extraction, and it is blended with silica to increase the hardness, toughness, tensile resilience, and oil resistance of silicone rubber. Sex and solvent resistance, etc. to improve the process performance of the rubber compound, reduce costs, mainly divided into titanium dioxide, diatomaceous earth, zinc oxide, quartz powder, zirconium silicate and calcium carbonate, etc., which is sometimes the quality of products and products The difference is in the rubber compound.