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what is silica gel
the word 'silica gel' should we all heard that, but what is silica gel?
to contact 'silica gel' the industry for a long time since my understanding of the word 'silica gel' is fuzzy. Go to online to see, some people say that silica gel is silicon dioxide hydrate, some people say that silica gel is a kind of synthetic rubber; The English translation of the silicone has a lot of kinds, mainly several kinds of 'silica gel 'and' silicone ', 'silicon rubber' information, to tell the truth now web site credibility more and more low, a lot of things really is a fool. Today we first to analyze simple two words 'silica gel' and 'silicone', take a look at them exactly is what relationship.
if by some chemical name on the books, 'silica gel' because it is condensed silica content, molecular formula is mSiO2 · H2O. The silica gel is a highly active adsorption material, belongs to the amorphous material, insoluble in water and any solvent, non-toxic tasteless, stable chemical properties, in addition to the strong alkali, hydrofluoric acid does not react with any material. And we often say rhinoplasty, breast enhancement in the filling of the silica gel is this kind of silica gel
but in the mold industry, we refer to 'silica gel' is usually not what is said above silica hydrate of silica gel. Mold industry of silicone usually say is a kind of polysiloxane, simply put, mould industry 'silica gel' is a kind of synthetic rubber, because contain silicon atom elements called silicon rubber, do so -- called 'silica gel'. Mold industry 'silica gel' variety, different purposes. As to product performance according to different raw materials have a large gap, but in general this kind of 'silica gel' ( Precisely, silicone rubber) Presents instead of rubber trends in the future.
in many cases, we mention 'silica gel' often is not simply refers to the condensation of silica content, doesn't mean the silicide above synthetic rubber mold industry. But the above two kinds of products are called 'silica gel'. At this time we have to 'silica gel' is divided into organic silicone and inorganic silica gel. Inorganic silica gel is the kind of 'silica gel' we mentioned - — Silicon dioxide hydrate. Mold industry of synthetic rubber containing silicon because of containing hydrocarbon group called the organic silicone, but in some areas of the silicone rubber when it is defined as 'between inorganic and organic materials,' but more manufacturer of silicone products rubber itself is in the production of organic silicon.
from the above three, the concept of the word 'silica gel' is very chaotic, but unfortunately, up to now, there's no clear provisions of the state. When we hear the word 'silica gel' must be understood is silica or synthetic rubber containing silicon, or at the end of the day is inorganic silica gel or organic silica gel.
here it is necessary to mention a few words related to 'silica gel' name: silicon rubber, silicon rubber, silicon likang. rubber and silicone've said above, the relationship between the silicone difference and containing silicone rubber, silicone products rubber is 'silica gel' organic 'silica gel'. 'Silica gel' is Hong Kong and Taiwan and the mainland is called 'silicone', then according to the mainland 'silica gel' the chaos of the term, silica gel is a chaos of the term. Silicon likang is silicone, we usually say that he is 'silicone', then the silica gel?
to sum up, when we mention the word 'silicone' to have a knowledge of his general concepts, important is not what he called, it is important to see what he is used to do, what's his chemical structure. At the same time sincerely calling for early issued a formal call methods.
the purpose of the silica gel classification
in liquid silicone, according to its purpose, silica gel is divided into:
mould silica gel, silica gel, silica gel food, pad printing silicone, electronic potting silicone coated silica gel, silicone injection molding
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