Kedu ụdị cellulose ether dị?

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.


Oge nzipu: Feb-11-2024