Cellulose ether kacha mma
Cellulose ethers bụ ezinụlọ nke polymers soluble mmiri nke sitere na cellulose, polymer na-emekarị nke a na-ahụ na mgbidi cell nke osisi. Mwepụta ndị a bụ polymer cellulose emezigharịrị kemịkalụ nwere otu dị iche iche na-arụ ọrụ, na-enye ihe pụrụ iche na ụmụ irighiri ihe. A na-eji ethers cellulose eme ihe n'ọtụtụ ebe n'ụlọ ọrụ dị iche iche n'ihi ike ha dị iche iche, gụnyere ihe owuwu, ọgwụ, nri, ihe ịchọ mma, na ndị ọzọ.
Ịchọpụta "kasị mma" cellulose ether na-adabere na ihe ụfọdụ chọrọ nke ngwa a chọrọ. Ethers cellulose dị iche iche na-egosipụta ihe dị iche iche, dị ka viscosity, solubility, na ike imepụta ihe nkiri, na-eme ka ha dị mma maka ebumnuche dị iche iche. Nke a bụ ụfọdụ cellulose ethers nke a na-ejikarị eme ihe nke ọma:
- Methyl cellulose (MC):
- Ngwongwo: A maara MC maka ikike ijide mmiri dị elu, na-eme ka ọ dị mma maka iji ngwa ngwa ngwa ngwa, karịsịa na ụlọ ọrụ mmepụta ihe. A na-ejikwa ya na ọgwụ na ngwaahịa nri.
- Ngwa: Ngwa ngwa ngwa na simenti, mbadamba ọgwụ, yana dị ka ihe na-eme ka ihe na-esi ísì ụtọ na ngwaahịa nri.
- Hydroxyethyl cellulose (HEC):
- Ngwongwo: HEC na-enye ezigbo mmiri solubility ma na-agbanwe agbanwe na njikwa viscosity. A na-ejikarị ya eme ihe na ụlọ ọrụ mmepụta ihe na ngwaahịa ndị ahịa.
- Ngwa: Agba na mkpuchi, ngwaahịa nlekọta onwe onye (shampoos, lotions), adhesives, na usoro ọgwụ.
- Carboxymethyl cellulose (CMC):
- Ngwongwo: CMC bụ mmiri na-agbaze ma nwee ọmarịcha ihe na-eme ka ọ sie ike. A na-ejikarị ya eme ihe na nri na ụlọ ọrụ ọgwụ.
- Ngwa: Ngwa nri (dị ka ihe na-agbapụta na stabilizer), ọgwụ, ihe ịchọ mma, textiles, na mmiri na-egwupụta ihe na ụlọ ọrụ mmanụ na gas.
- Hydroxypropyl Methyl Cellulose (HPMC):
- Njirimara: HPMC na-enye ezigbo nguzozi nke mmiri solubility, thermal gelation, na ihe na-emepụta ihe nkiri. A na-ejikarị ya eme ihe na-ewu na ngwa ọgwụ.
- Ngwa: Adhesives tile, ndị na-emepụta simenti, usoro ọgwụ ọnụ, na usoro nnyefe ọgwụ na-achịkwa.
- Ethyl Hydroxyethyl Cellulose (EHEC):
- Ngwongwo: A maara EHEC maka nnukwu viscosity na njigide mmiri, na-eme ka ọ dị mma maka ngwa ndị na-achọ ihe na-ewu na ụlọ ọgwụ.
- Ngwa: Ihe mgbakwunye ngwa agha, ihe na-eme ka ọ sie ike na ọgwụ, na ihe ịchọ mma.
- Sodium Carboxymethyl Cellulose (Na-CMC):
- Ngwongwo: Na-CMC bụ cellulose ether na-edozi mmiri nke nwere ihe na-eme ka ọ dịkwuo mma ma na-eme ka ọ dị ike. A na-ejikarị ya eme ihe na nri na ngwa ụlọ ọrụ dị iche iche.
- Ngwa: Ngwaahịa nri (dị ka onye na-agbapụta ihe na stabilizer), ọgwụ, textiles, na mmiri mmiri na-egwupụta ihe.
- Microcrystalline cellulose (MCC):
- Ngwongwo: MCC nwere obere irighiri ihe kristal ma a na-ejikarị ya dị ka ihe nkpuchi na ndochi na mbadamba ọgwụ.
- Ngwa: mbadamba ọgwụ na capsules.
- Sodium Carboxymethyl Starch (CMS):
- Ngwongwo: CMS bu ihe eji eme starch nwere ihe di ka Na-CMC. A na-ejikarị ya eme ihe na ụlọ ọrụ nri.
- Ngwa: Ngwaahịa nri (dị ka onye na-agbapụta ihe na stabilizer), textiles, na ọgwụ.
Mgbe ị na-ahọrọ cellulose ether maka ngwa a kapịrị ọnụ, ọ dị mkpa ịtụle ihe ndị dị ka viscosity achọrọ, solubility, nkwụsi ike, na njirimara arụmọrụ ndị ọzọ. Na mgbakwunye, ekwesịrị iburu n'uche irube isi n'ụkpụrụ nchịkwa na ihe gbasara gburugburu ebe obibi. Ndị na-emepụta ihe na-enyekarị mpempe akwụkwọ data teknụzụ nwere ozi zuru ezu na njirimara yana ojiji a tụrụ aro nke ether cellulose kpọmkwem.
Oge nzipu: Jan-03-2024