Hydroxyethyl cellulose (HEC)bụ ihe na-acha ọcha ma ọ bụ na-acha odo odo, enweghị isi, fibrous na-adịghị egbu egbu ma ọ bụ powdery siri ike, nke a na-akwado site na mmeghachi omume etherification nke alkaline cellulose na ethylene oxide (ma ọ bụ chlorohydrin). Nonionic soluble cellulose ethers. Na mgbakwunye na ịgba, nkwusioru, njide, na-ese n'elu mmiri, imepụta ihe nkiri, ịgbasa, idebe mmiri na inye colloid nchebe, ọ nwere ihe ndị a:
1. HEC na-agbaze na mmiri ọkụ ma ọ bụ mmiri oyi, okpomọkụ dị elu ma ọ bụ esi na-enweghị mmiri ozuzo, nke mere na ọ nwere ọtụtụ ihe solubility na njirimara viscosity, na gelation na-abụghị thermal;
2. Ọ bụ na-abụghị ionic na ike ibikọ ọnụ na a dịgasị iche iche nke ọzọ mmiri-soluble polymers, surfactants, na salts. Ọ bụ ihe magburu onwe colloidal thickener maka elu-concentration electrolyte ngwọta;
3. Ikike njide mmiri dị okpukpu abụọ dị elu karịa nke methyl cellulose, ọ na-enwekwa usoro nchịkwa ka mma.
4. E jiri ya tụnyere methyl cellulose a ma ama na hydroxypropyl methyl cellulose, ike ịgbasa nke HEC bụ nke kachasị njọ, ma ikike colloid nchebe bụ ike kachasị ike. N'ihi ihe dị mma ya nke ịgbasa, nkwụsịtụ, ịgbasa, emulsifying, adhering, film-forming, na-echebe mmiri na inye colloid nchebe, HEC ejiriwo ya mee ihe na nchọpụta mmanụ, mkpuchi, ihe owuwu, ọgwụ, nri, textile, akwụkwọ na polymer Polymerization. na ubi ndị ọzọ.
Mkpachapụ anya:
Ebe ọ bụ na hydroxyethyl cellulose na-edozi elu bụ ntụ ntụ ma ọ bụ cellulose siri ike, ọ dị mfe ijikwa na igbari ya na mmiri ma ọ bụrụhaala na a na-elebara ihe ndị a anya. nke
1. Tupu na mgbe agbakwunyere hydroxyethyl cellulose, a ghaghị ịkpali ya mgbe niile ruo mgbe ngwọta ya zuru oke ma doo anya. nke
2. A ghaghị iji nwayọọ nwayọọ gbanye ya n'ime tankị ngwakọta, etinyela ya ozugbo nnukwu hydroxyethyl cellulose ma ọ bụ hydroxyethyl cellulose nke mebere lumps na bọọlụ n'ime tankị ngwakọta. nke
3. Mmiri mmiri na PH uru na mmiri nwere mmekọrịta doro anya na mgbasa nke hydroxyethyl cellulose, n'ihi ya, a ghaghị ịkwụ ụgwọ nlebara anya pụrụ iche. nke
4. Akwụsịla ihe ụfọdụ alkaline na ngwakọta tupu a kpoo ntụ ntụ hydroxyethyl cellulose site na mmiri. Ịkwalite uru PH mgbe ikpo ọkụ ga-enyere aka igbari. nke
5. Dị ka o kwere mee, tinye ọgwụ mgbochi fungal ozugbo enwere ike. nke
6. Mgbe ị na-eji hydroxyethyl cellulose viscosity dị elu, ntinye nke mmanya nne ekwesịghị ịdị elu karịa 2.5-3%, ma ọ bụghị ya, mmanya nne ga-esi ike ijikwa ya. Hydroxyethyl cellulose a gwọchara ya anaghị adị mfe n'ịmepụta lumps ma ọ bụ spheres, ma ọ bụ na ọ gaghị etolite colloid sppherical na-adịghị ahụkebe ma gbakwunyere mmiri.
Oge nzipu: Dec-27-2022