Agba, nke a na-akpọkarị agba na Chaịna. A na-ete ihe a na-akpọ agba n'elu ihe ahụ a chọrọ ka e chebe ya ma ọ bụ chọọ ya mma, ọ pụkwara ịmepụta ihe nkiri na-aga n'ihu nke jikọtara ya na ihe ahụ a ga-ekpuchi.
Gịnị bụ Hydroxyethyl Cellulose?
Hydroxyethyl cellulose (HEC), nke bụ ọcha ma ọ bụ odo odo dị mfe, nke na-enweghị isi, nke na-anaghị egbu egbu ma ọ bụ nke nwere ntụ ntụ, nke e ji mmeghachi omume etherification nke alkaline cellulose na ethylene oxide (ma ọ bụ chlorohydrin) kwadebe, so na cellulose ethers nke na-agbaze na Nonionic. Ebe ọ bụ na HEC nwere ezigbo ihe onwunwe nke ịka nká, nkwụsịtụ, ịgbasa, emulsifying, ijikọ, ịmepụta ihe nkiri, ichebe mmiri na inye colloid nchebe, ejirila ya mee ihe n'ọtụtụ ebe na nchọpụta mmanụ, mkpuchi, owuwu, ọgwụ, nri, ákwà, ime akwụkwọ na polymer Polymerization na mpaghara ndị ọzọ.
Gịnị na-eme ma hydroxyethyl cellulose zukọta agba sitere na mmiri?
Dịka ihe na-adịghị eme ka ihe dị n'ime mmiri na-abụghị ionic, hydroxyethyl cellulose nwere ihe ndị a na mgbakwunye na ịka njọ, nkwụsịtụ, ijikọ, na-ese n'elu mmiri, na-emepụta ihe nkiri, na-agbasa, na-ejigide mmiri na inye colloid nchebe:
A na-agbaze HEC na mmiri ọkụ ma ọ bụ mmiri oyi, okpomọkụ dị elu ma ọ bụ esi mmiri na-enweghị mmiri ozuzo, nke mere na o nwere ọtụtụ njirimara ịgbaze na viscosity, yana gelation na-abụghị okpomọkụ;
Ike nchekwa mmiri dị okpukpu abụọ karịa nke methyl cellulose, ọ na-achịkwakwa mmiri nke ọma;
Ma e jiri ya tụnyere methyl cellulose na hydroxypropyl methyl cellulose a ma ama, ikike ịgbasa nke HEC bụ nke kacha njọ, mana ikike nchekwa colloid bụ nke kachasị ike.
Ọ bụghị ionic ma nwee ike ibikọ na ọtụtụ polymers ndị ọzọ na-agbaze mmiri, surfactants, na nnu. Ọ bụ ezigbo ihe na-eme ka ihe dị arọ nke colloidal sie ike maka ngwọta electrolyte dị elu;
Kedu otu esi eji hydroxyethyl cellulose? Kedu otu esi etinye ya?
Tinye ozugbo n'oge mmepụta - usoro a bụ nke kachasị mfe ma na-ewe oge kacha nta.
Tinye mmiri dị ọcha n'ime nnukwu bọket e ji ihe na-agwakọta ihe dị elu mee. Malite ịkpalite ya mgbe niile n'ọsọ dị ala ma jiri nwayọ gwakọta hydroxyethyl cellulose n'ime mmiri ahụ nke ọma. Gaa n'ihu na-akpali ya ruo mgbe ihe niile ga-amịkọrọ mmiri. Mgbe ahụ tinye ihe nchekwa na ihe mgbakwunye dị iche iche. Dị ka agba, ihe enyemaka mgbasa, mmiri ammonia, wdg. Gwakọta ya ruo mgbe hydroxyethyl cellulose niile gbazere kpamkpam (viscosity nke mmiri ahụ na-abawanye nke ukwuu) tupu ịtinye ihe ndị ọzọ dị na usoro maka mmeghachi omume.
E tinyere mmanya nne
Ọ bụ ịkwadebe ihe ọṅụṅụ nne nwere oke njupụta mbụ, wee tinye ya na ngwaahịa ahụ. Uru nke usoro a bụ na ọ nwere ike ịgbanwe agbanwe karịa ma enwere ike itinye ya ozugbo na ngwaahịa emechara, mana a ga-echekwa ya nke ọma. Usoro nke usoro a yiri ọtụtụ usoro dị na usoro 1; ihe dị iche bụ na ọ dịghị mkpa maka ihe na-akpali akpali dị elu, naanị ụfọdụ ihe na-akpali akpali nwere ike zuru oke iji mee ka hydroxyethyl cellulose gbasaa n'otu ebe na ngwọta ahụ ka enwere ike ịga n'ihu na-akwụsịghị agwakọta ruo mgbe ọ ga-agbaze kpamkpam ka ọ bụrụ ihe ngwọta viscous. Agbanyeghị, a ghaghị ịmara na a ga-etinye ihe na-egbu egbu na ihe ọṅụṅụ nne ozugbo enwere ike.
Ebe ọ bụ na hydroxyethyl cellulose nke a na-agwọ n'elu ya siri ike ma ọ bụ nwee ntụ ntụ, Lihongde na-echetara gị ka ị ṅaa ntị n'ihe ndị a mgbe ị na-akwadebe mmanya nne hydroxyethyl cellulose:
(1) Tupu e tinye hydroxyethyl cellulose na mgbe e tinyere ya, a ga-akpali ya mgbe niile ruo mgbe mmiri ahụ ga-apụta ìhè ma doo anya nke ọma.
(2) A ga-eji nwayọ tee ya n'ime tankị ngwakọta ahụ, etinyekwala nnukwu ego ma ọ bụ tinye hydroxyethyl cellulose ozugbo n'ime tankị ngwakọta ahụ.
(3) Okpomọkụ mmiri na uru PH dị na mmiri nwere njikọ dị mkpa na mgbasa nke hydroxyethyl cellulose, yabụ a ga-elebara anya nke ọma.
(4) Etinyela ihe alkaline n'ime ngwakọta ahụ tupu e tinye ntụ hydroxyethyl cellulose na mmiri. Ịbawanye pH mgbe mmiri gwụchara na-enyere aka ịgbaze.
(5) Ruo ókè o kwere mee, tinye ihe na-akpata nje tupu oge eruo
(6) Mgbe a na-eji hydroxyethyl cellulose nke nwere oke viscosity, oke nke mmanya nne ekwesịghị ịdị elu karịa 2.5-3% (site na ibu), ma ọ bụghị ya, mmanya nne nne ga-esiri ike ijikwa.
Oge ozi: Maachị-02-2023