Focus on Cellulose ethers

Waa kuma soo saaraha hydroxyethylcellulose?

Waa kuma soo saaraha hydroxyethylcellulose?

Hydroxyethylcellulose (HEC) waa polymer synthetic ah oo loo isticmaalo warshado kala duwan ujeedooyin kala duwan. Waa polymer aan-ionic ahayn, biyo-milmi kara oo laga keenay cellulose, waxaana loo isticmaalaa sidii wakiil dhumuc leh, emulsifier, xasiliye, iyo wakiilka hakinta.

HEC waxaa soo saaray shirkado kala duwan, oo ay ku jiraan Dow Chemical, BASF, Ashland, AkzoNobel, iyo Clariant. Dow Chemical waa mid ka mid ah soosaarayaasha ugu waaweyn ee HEC, waxayna soo saartaa darajooyin kala duwan oo HEC ah, oo ay ku jiraan noocyada Dowfax iyo Natrosol. BASF waxay soo saartaa sumadda Celloize ee HEC, halka Ashland ay soo saarto summada Aqualon. AkzoNobel waxay soo saartaa noocyada Aqualon iyo Aquasol ee HEC, Clariant waxay soo saartaa sumadda Mowiol.

Mid kasta oo ka mid ah shirkadahan waxay soo saartaa darajooyin kala duwan oo HEC ah, kuwaas oo ku kala duwan marka loo eego miisaanka molecular, viscosity, iyo guryaha kale. Miisaanka molecular ee HEC wuxuu u dhexeeyaa 100,000 ilaa 1,000,000, iyo viscosity wuxuu u dhexeeyaa 1 ilaa 10,000 cps. Heerarka HEC ee ay soo saartay shirkad kastaa waxay sidoo kale ku kala duwan yihiin marka la eego milmahooda, xasilloonidooda, iyo waafaqsanaanta maaddooyinka kale.

Marka lagu daro soo saarayaasha waaweyn ee HEC, waxa kale oo jira tiro shirkado yaryar ah oo soo saara HEC. Shirkadahaas waxaa ka mid ah Lubrizol, iyoKiimikada Kima. Mid kasta oo ka mid ah shirkadahaas waxay soo saartaa darajooyin kala duwan oo HEC ah, kuwaas oo ku kala duwan marka loo eego hantidooda.

Guud ahaan, waxaa jira shirkado kala duwan oo soo saara HEC, shirkad kastaa waxay soo saartaa darajooyin kala duwan oo HEC ah. Heerarka HEC ee ay soo saarto shirkad kastaa way ku kala duwan yihiin marka loo eego culeyskooda molecular, viscosity, solubility, xasiloonida, iyo waafaqsanaanta maaddooyinka kale.


Waqtiga boostada: Febraayo-12-2023
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