The word "silicone" we are not unfamiliar, whenever we mention who who who tidies up after, will think of the body and may plug the silica gel. But what exactly is silica gel? The word "silicone" English transliteration, also called silica gel, silica gel mould industry to do, silica gel mentioned in this industry, in fact, most of the time is a kind of synthetic rubber, synthetic rubber is containing silicon. Synthetic rubber containing silicon is also called silicon rubber, then "silicone" and "silicone rubber" what is the relationship?
If by some chemical books called "silicone", because it is the condensation of silica, the molecular formula is mSiO2 - H2O. The "gel" is a highly active adsorbent material, belonging to the non crystalline solids, insoluble in water and any solvent, non-toxic and tasteless, stable chemical property, in addition to alkali, hydrofluoric acid does not interact with anything. We often say that the augmentation rhinoplasty, breast filled with silica gel is the kind of silica gel.
In the mold industry, the condensation compound silica we mention the silica gel is usually not mentioned above in the silica gel. The silica gel mould industry usually mean linear polymer elastic body is composed of two methyl siloxane and other silicone monomer is polymerized, referred to as SIR. The macromolecular backbone is Si-O units, the unit price of organic groups as side groups, the general structure of type of figure, type in R, R, R '"organic group, such as methyl, vinyl, phenyl propyl fluoride, three, m, n as the degree of polymerization, integer is changed in a wide range of.
The silica gel mould industry variety, use different. As for the properties of the products according to the different raw materials has the very big disparity, but overall the "gel" in the future the trend shows instead of rubber.
We mention "silicone" usually is not simply refer to the condensation of silica in many cases, silicified synthetic rubber is not to say that the mold industry above. But the above two categories of products are called silica gel. At this time we again "silicone" divided into organic and inorganic silica gel. The first "silicone" inorganic silica gel is mentioned, condensation of silica. Silicone elastomer containing mold industry because of containing hydrocarbon groups called organic silica gel.
From the above three kinds of circumstances, "the concept of the word silica gel" confused, but unfortunately, so far no state expressly called. When we hear the word "silicone" must understand is silica or silicon containing synthetic rubber, or in the final analysis is inorganic silica or organic silica gel.
Here it is necessary to mention a few words about and "silicone" Name: silicone rubber, silicone rubber, silicone. The above relationship between silicone rubber and silicone have said, silica gel difference and contains silicon rubber, silicone rubber is "silicone" organic "inside the silica gel". "Silicone" RTHK crooner, called "silicone" in mainland China, then in accordance with the mainland "silicone" confusion of names, silica gel is a confusing term. Silicone is silicone transliteration, usually we say he is "silicone", what is the silica gel?
To sum up, when we talk about "should have a knowledge of his general concept of this word when silica gel", the most important is not to see what his name is, mainly to see his chemical structure. At the same time, hope to introduce a standard call method.