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Bambanci tsakanin hydroxyethyl cellulose HEC da hydroxypropyl methyl cellulose HPMC


Lokacin aikawa: Janairu-20-2023

Hydroxyethyl cellulose (HEC) da hydroxypropyl methyl cellulose (HPMC) sune kauri biyu da aka fi amfani da su.Su ne sassa na mannen roba waɗanda za a iya amfani da su don samar da juriya, ƙara danko, ko samar da ductility.Abubuwan sinadaran su iri ɗaya ne, amma akwai wasu bambance-bambance a bayyane.

HEC shine analog na ethylene-acetate wanda ya ƙunshi yafi formaldehyde, methanol da sodium hydroxide.Yana da thixotropic sosai kuma ana iya amfani dashi azaman mai mai, kayan aikin jiyya na saman da adhesives don kayan lantarki da masana'antu.Hakanan za'a iya amfani da hecs azaman masu kauri, masu watsawa da masu hana sikeli.

HPMC wani analog na ethylene-acetate ne, wanda ya ƙunshi galibi na methanol, sodium hydroxide, da carbonate.Yana da babban danko, elasticity da expansibility, ana iya amfani dashi azaman adhesives, fenti, masu tsaftacewa da ƙari tawada.Bugu da ƙari, ana iya amfani da shi don shirye-shiryen crystal kuma yana da kwanciyar hankali na tsarin santsi.
Hydroxyethyl cellulose HEC, a matsayin wanda ba ionic surfactant, yana da wadannan kaddarorin ban da thickening, dakatar, mannewa, iyo, fim samuwar, watsawa, ruwa riƙewa da m colloidal effects:

1, hydroxyethyl cellulose HEC za a iya narkar da a cikin ruwan zafi ko sanyi, babban zafin jiki ko tafasasshen ba ya haɓaka, don haka yana da nau'i mai yawa na solubility da halayen danko, da kayan gel ba mai zafi ba;

2, hydroxyethyl cellulose HEC kanta ba-ionic nau'i na iya zama tare da fadi da kewayon sauran ruwa-soluble polymers, surfactants, salts, wani irin colloidal thickener dauke da high electrolyte bayani;

3, hydroxyethyl cellulose HEC ikon riƙe ruwa ya ninka sau biyu fiye da methyl cellulose, tare da tsarin gudana;

4. The watsawa ikon hydroxyethyl cellulose HEC ne matalauta idan aka kwatanta da gane methyl cellulose da hydroxypropyl methyl cellulose, amma kariyar colloid ikon ne mai karfi.

Manufa: Gabaɗaya ana amfani da shi azaman wakili mai kauri, wakili mai karewa, m, stabilizer da shirye-shiryen fenti na latex, lacquer, tawada.Additives da aka yi amfani da su a cikin hakowa mai, gels, man shafawa, ruwan shafa fuska, masu share ido, suppositories da allunan, kuma ana amfani da su azaman gels hydrophilic, kayan kwarangwal, shirye-shiryen ci gaba da sakin kwarangwal, kuma ana iya amfani da su azaman stabilizers a abinci.