Kedu ụdị cellulose ether a na-ahụkarị? Kedu ihe ndị e ji mara ya?

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

1. Methyl Cellulose (MC):
   • Àgwà:
     • Methyl cellulose bụ polima mmiri na-agbaze nke sitere na cellulose site na iji methyl chloride gwọọ ya.
     • Ọ na-abụkarị ihe na-esi isi, ọ naghị atọ ụtọ, ọ naghịkwa egbu egbu, nke mere ka ọ dị mma maka iji ya mee ihe n'ọtụtụ ebe.
     • MC na-egosipụta ezigbo ihe eji echekwa mmiri, na-eme ka ọ bụrụ ihe mgbakwunye zuru oke maka ngwa agha dabere na simenti, plasta dabere na gypsum, na ihe mgbakwunye taịlị.
     • Ọ na-eme ka ọrụ dịkwuo mma, ịrapara, na oge mmeghe n'ihe owuwu, na-enye ohere maka ngwa ngwa na arụmọrụ ka mma.
     • A na-ejikarị Methyl cellulose eme ihe dị ka ihe na-eme ka ihe sie ike, ihe na-eme ka ihe sie ike, na ihe na-eme ka ihe dị nro ma na-eme ka ihe dị nro ma na-eme ka ihe dị nro ma na-eme ka ọ sie ike n'ihe oriri, ọgwụ, na ihe ịchọ mma.
2. Selulose Hydroxyethyl (HEC):
   • Àgwà:
     • A na-emepụta hydroxyethyl cellulose site na iji ethylene oxide meghachi omume na cellulose iji webata otu hydroxyethyl n'ime ọkpụkpụ azụ cellulose.
     • Ọ na-agbaze n'ime mmiri oyi ma na-emepụta ihe ngwọta doro anya, nke na-agbaze agbaze, nke nwere ezigbo ihe eji ejide mmiri.
     • A na-ejikarị HEC eme ihe dị ka ihe na-eme ka ihe dị arọ, ihe na-agbanwe ọdịdị ahụ, na ihe na-emepụta ihe nkiri n'ọtụtụ ngwa, gụnyere agba, ihe na-eme ka ihe dị nro, ngwaahịa nlekọta onwe onye, ​​na ọgwụ.
     • N'ihe owuwu ụlọ, HEC na-eme ka ọrụ dịkwuo mma, na-eguzogide nsụda, na ịdị n'otu, na-eme ka ọ dị mma maka iji ya mee ihe na simenti na gypsum.
     • HEC na-enyekwa omume pseudoplastic flow, nke pụtara na viscosity ya na-ebelata n'okpuru nrụgide shear, na-eme ka ngwa ngwa na mgbasa dị mfe.
3. Selulose Hydroxypropyl Methyl (HPMC):
   • Àgwà:
     • Hydroxypropyl methyl cellulose bụ cellulose ether nke a na-emepụta site n'itinye hydroxypropyl na otu methyl n'ime azụ cellulose.
     • Ọ na-egosipụta ihe ndị yiri methyl cellulose na hydroxyethyl cellulose, gụnyere mmiri ịgbaze, ikike imepụta ihe nkiri, na idobe mmiri.
     • A na-eji HPMC eme ihe n'ọtụtụ ihe owuwu dịka ihe ndọda taịlị, ihe ndị e ji simenti mee, na ihe ndị na-eme ka ọ dị larịị iji melite ike ọrụ, njikọta, na ịdị n'otu.
     • Ọ na-enye ezigbo ihe ndị na-eme ka ọ sie ike, na-ejikọta ya, ma na-eme ka mmanụ dị n'ime sistemu mmiri, ọ na-adabakwa na ihe mgbakwunye ndị ọzọ a na-ejikarị eme ihe n'iwu ụlọ.
     • A na-ejikwa HPMC eme ihe n'ọgwụ, nri, na ihe nlekọta onwe onye dị ka ihe na-eme ka ahụ sie ike, ihe na-egbochi nrụgide, na ihe na-agbanwe viscosity.
4. Carboxymethyl cellulose (CMC):
   • Àgwà:
     • Carboxymethyl cellulose bụ cellulose ether nke sitere na cellulose site na iji sodium hydroxide na monochloroacetic acid gwọọ ya iji webata otu carboxymethyl.
     • Ọ na-agbaze n'ime mmiri ma na-emepụta ihe ngwọta doro anya, nke na-agbaze agbaze, nke nwere ezigbo ihe ndị na-eme ka mmiri sie ike, na-eme ka ọ sie ike, ma na-ejidekwa ya.
     • A na-ejikarị CMC eme ihe dị ka ihe na-eme ka ihe sie ike, ihe na-ejikọ ihe, na ihe na-agbanwe ọdịdị ala n'ọtụtụ ụlọ ọrụ, gụnyere nri, ọgwụ, ákwà, na akwụkwọ.
     • N'ihe owuwu ụlọ, a na-eji CMC eme ihe mgbe ụfọdụ dị ka ihe na-ejide mmiri n'ime ngwa agha na ihe e ji simenti mee, ọ bụ ezie na ọ naghị adịkarị ka ether cellulose ndị ọzọ n'ihi ọnụ ahịa ya dị elu ma na-adaba na sistemụ simenti.
     • A na-ejikwa CMC eme ihe n'ụdị ọgwụ dịka ihe na-egbochi ihe nkwụsịtụ, ihe na-ejikọ mbadamba, na matrix na-achịkwa mwepụta.

Ndị a bụ ụfọdụ n'ime ụdị cellulose ether kachasị ewu ewu, nke ọ bụla na-enye ihe pụrụ iche na uru maka ojiji dị iche iche. Mgbe ị na-ahọrọ cellulose ether maka ojiji kpọmkwem, a ga-atụle ihe ndị dị ka ịgbaze mmiri, viscosity, ndakọrịta na ihe mgbakwunye ndị ọzọ, na njirimara arụmọrụ achọrọ.