Kedu ụdị ether cellulose a na-ahụkarị? Gịnị bụ àgwà?

Cellulose ethers bụ ụdị dị iche iche nke polymers sitere na cellulose, polysaccharide eke dị na osisi. A na-eji ha eme ihe n'ọtụtụ ụlọ ọrụ dị iche iche, gụnyere ihe owuwu, ụlọ ọgwụ, nri na nlekọta onwe onye, ​​​​n'ihi ihe pụrụ iche ha nwere na ụdị dịgasị iche iche. Nke a bụ ụfọdụ ụdị cellulose ether a na-ahụkarị na njirimara ha:

1. Methyl cellulose (MC):
   • Njirimara:
     • Methyl cellulose bụ polymer soluble mmiri nke ewepụtara na cellulose site na iji methyl chloride gwọọ ya.
     • Ọ na-abụkarị enweghị isi, enweghị ụtọ, na anaghị egbu egbu, na-eme ka ọ dị mma maka ojiji n'ọtụtụ ngwa.
     • MC na-egosipụta ọmarịcha njide mmiri, na-eme ka ọ bụrụ ihe mgbakwunye dị mma maka ngwa ngwa simenti, plasta dabere na gypsum, na nrapado taịlị.
     • Ọ na-eme ka arụmọrụ rụọ ọrụ, adhesion, na oge na-emeghe na ihe owuwu ihe owuwu, na-enye ohere maka ngwa dị mfe na ịrụ ọrụ ka mma.
     • A na-ejikarị Methyl cellulose eme ihe dị ka ihe na-eme ka ọ sie ike, stabilizer, na emulsifier na ngwaahịa nri, ọgwụ na ihe ịchọ mma.
2. Hydroxyethyl cellulose (HEC):
   • Njirimara:
     • A na-emepụta hydroxyethyl cellulose site n'imeghachi cellulose na ethylene oxide iji webata otu hydroxyethyl n'ime ọkpụkpụ azụ cellulose.
     • Ọ bụ soluble na mmiri oyi ma na-emepụta ihe ngwọta doro anya, viscous nwere ezigbo njide mmiri.
     • A na-ejikarị HEC eme ihe dị ka onye na-agba agba, onye na-eme mgbanwe rheology, na onye na-emepụta ihe nkiri na ngwa dị iche iche, gụnyere agba, adhesives, ngwaahịa nlekọta onwe onye, ​​​​na ọgwụ.
     • N'ime ihe owuwu, HEC na-eme ka arụ ọrụ dị mma, nkwụsị nke sag, na ịdị n'otu, na-eme ka ọ dị mma maka iji cimentious na gypsum na-emepụta ihe.
     • HEC na-enyekwa omume ịgba ọsọ pseudoplastic, nke pụtara na viscosity ya na-ebelata n'okpuru nrụgide siri ike, na-eme ka ngwa dị mfe na ịgbasa.
3. Hydroxypropyl Methyl Cellulose (HPMC):
   • Njirimara:
     • Hydroxypropyl methyl cellulose bụ cellulose ether emepụtara site na iwebata hydroxypropyl na methyl otu n'ime ọkpụkpụ azụ cellulose.
     • Ọ na-egosipụta ihe ndị yiri ma methyl cellulose na hydroxyethyl cellulose, gụnyere mmiri solubility, ike imepụta ihe nkiri, na njide mmiri.
     • A na-eji HPMC eme ihe n'ọtụtụ ebe n'ihe eji arụ ọrụ dịka ihe nrapado tile, ndị na-emepụta ciment, na ogige ndị na-edozi onwe ha iji kwalite ọrụ, nrapanye, na nkwụsi ike.
     • Ọ na-enye ihe njiri mara mma, njide na mmanye mmanye n'ime sistemu mmiri ma dakọtara na mgbakwunye ndị ọzọ a na-ejikarị eme ihe n'usoro ihe owuwu.
     • A na-ejikwa HPMC na ọgwụ, ngwaahịa nri, na ihe nlekọta onwe onye dị ka ihe nkwụsi ike, onye nkwusioru, na mgbanwe viscosity.
4. Carboxymethyl cellulose (CMC):
   • Njirimara:
     • Carboxymethyl cellulose bụ cellulose ether enwetara site na cellulose site na-emeso ya na sodium hydroxide na monochloroacetic acid iwebata carboxymethyl otu.
     • Ọ na-agbaze n'ime mmiri ma na-emepụta ihe ngwọta doro anya, viscous nwere ọmarịcha ihe na-eme ka ọ sie ike, na-eme ka ọ dị ike, na-ejigide mmiri.
     • A na-ejikarị CMC eme ihe dị ka thickener, binder, and rheology modifier na ụlọ ọrụ dị iche iche, gụnyere nri, ọgwụ, textiles, na akwụkwọ.
     • N'ime ihe owuwu ihe, a na-eji CMC eme ihe mgbe ụfọdụ dị ka onye na-eji mmiri na-eme ka mmiri dị na ciment na grouts dabeere na ciment, ọ bụ ezie na ọ na-adịkarịghị karịa cellulose ethers ndị ọzọ n'ihi ọnụ ahịa ya dị elu na obere ndakọrịta na usoro cimenti.
     • A na-ejikwa CMC n'ụdị usoro ọgwụ dị ka onye na-akwụsịtụ, ihe nkedo mbadamba, na matriks ewepụtara na-achịkwa.

Ndị a bụ ụfọdụ ụdị ether cellulose na-ahụkarị, nke ọ bụla na-enye ihe pụrụ iche na uru maka ngwa dị iche iche. Mgbe ị na-ahọrọ cellulose ether maka ngwa ngwa, ihe ndị dị ka solubility, viscosity, ndakọrịta na ihe mgbakwunye ndị ọzọ, na njirimara arụmọrụ achọrọ kwesịrị iburu n'uche.