Industry information

The difference between silica gel and silica gel

2020-04-27 09:53:07 Yi Mou Rubber and Plastic 916

Several words related to the term "silicone rubber": silicone rubber, silicone rubber and silicone rubber.

"Silicone" is the name of Hong Kong and Taiwan and "silica gel" in the mainland. According to the chaotic name of "silica gel" in the mainland, silicone is also a chaotic term.  Silicon Likang is a transliteration of Silicon. We usually call him "silicone".

According to the nomenclature in some chemistry books, "silica gel" should be a condensate of silica with the molecular formula mSiO2•H2O.  The "silica gel" is a highly active adsorption material, belonging to amorphous substance, insoluble in water and any solvent, nontoxic and tasteless, stable in chemical properties, and does not react with any substance except strong alkali and hydrofluoric acid.  And what we often say about augmentation of nose and breast is that silicone.

However, in the mold industry, the "silica gel" we mentioned is usually not the silica gel of the hydrate of silica mentioned above.  Silicone in the mold industry usually refers to a kind of polysiloxane. Simply put, the "silicone" in the mold industry is a synthetic rubber, which is called silicone rubber because it contains silicon atom components, thus being referred to as "silicone rubber" for short.

We often refer to "silica gel" not simply referring to the condensate of silica, nor referring to the silicified synthetic rubber on the mold industry.  But the above two kinds of products are called "silica gel".  At that time, we divided "silica gel" into organic silica gel and inorganic silica gel.  Inorganic silica gel is the first kind of "silica gel" we mentioned-hydrate of silica.

Silicon-containing synthetic rubber in the mold industry is called organosilica because it contains hydrocarbon groups.  When "silicone rubber" is mentioned in some places, it is defined as "between organic and inorganic substances", but more manufacturers of silicone rubber still claim to produce silicone.

Judging from the above three situations, the concept of the word "silica gel" is very confusing, but unfortunately, so far there is no state-stipulated term.


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