Kedu ụdị cellulose ether dị?

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, ihe ịchọ mma, na nlekọta onwe onye, ​​n'ihi njirimara pụrụ iche na ụdị dịgasị iche iche. Nke a bụ ụfọdụ ụdị cellulose ether a na-ahụkarị:

1. Methyl cellulose (MC):
   • A na-emepụta methyl cellulose site n'ịgwọ cellulose na methyl chloride iji webata otu methyl na ọkpụkpụ azụ cellulose.
   • Ọ bụ soluble na mmiri oyi na-emepụta ihe ngwọta doro anya, viscous.
   • A na-eji MC eme ihe dị ka ihe na-agbakọ, ihe nkedo, na stabilizer n'ọtụtụ ngwa, gụnyere ihe owuwu (dịka ọmụmaatụ, ụrọ simenti, plasta gypsum), ngwaahịa nri, ọgwụ na ihe nlekọta onwe onye.
2. Hydroxyethyl cellulose (HEC):
   • A na-emepụta hydroxyethyl cellulose site n'imeghachite 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, rheology modifier, na onye na-emepụta ihe nkiri na agba, adhesives, ngwaahịa nlekọta onwe onye, ​​​​na ọgwụ.
3. Hydroxypropyl Methyl Cellulose (HPMC):
   • A na-emepụta Hydroxypropyl methyl cellulose 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 ọmụmaatụ, tile adhesives, ciment-based renders, compounds-leveling), yana ọgwụ, ngwaahịa nri, na ihe nlekọta onwe onye.
4. Carboxymethyl cellulose (CMC):
   • A na-enweta Carboxymethyl cellulose site na cellulose site n'ịgwọ ya na sodium hydroxide na monochloroacetic acid iji webata otu carboxymethyl.
   • 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 ihe ngbochi, ihe nkedo, na rheology modifier na ngwaahịa nri, ọgwụ, textiles, akwụkwọ, na ụfọdụ ihe owuwu.
5. Ethyl cellulose (EC):
   • A na-emepụta ethyl cellulose site n'imeghachite cellulose na ethyl chloride iji webata otu ethyl na ọkpụkpụ azụ cellulose.
   • Ọ bụ ihe a na-adịghị ahụkebe na mmiri mana ọ na-agbaze na ihe mgbaze organic dị ka ethanol na chloroform.
   • A na-ejikarị EC eme ihe dị ka onye na-emepụta ihe nkiri, ihe nkedo na ihe mkpuchi na ọgwụ, ngwaahịa nri, ihe ịchọ mma, na ngwa mmepụta ihe.

Ndị a bụ ụfọdụ ụdị cellulose ether a na-ejikarị eme ihe, nke ọ bụla na-enye ihe pụrụ iche na uru maka ngwa dị iche iche. Ọpụrụiche cellulose ethers ndị ọzọ nwekwara ike ịdị, ahaziri na kpọmkwem ihe achọrọ na ụlọ ọrụ dị iche iche.