Hydroxyethyl cellulose (HEC) bụ ọcha ma ọ bụ na-acha odo odo, enweghị isi, fibrous na-adịghị egbu egbu ma ọ bụ uzuzu siri ike. A na-eme ya site na akwa akwa akwa ma ọ bụ pulp a nụchara anụcha nke etinyere na soda caustic mmiri 30%. Mgbe ọkara otu awa gachara, a na-ewepụ ya wee pịa ya. Afanyekwa ruo mgbe ruru nke alkaline mmiri ruru 1: 2.8, wee gwepịara. A na-akwado ya site na mmeghachi omume etherification ma bụrụ nke cellulose ethers na-abụghị ionic soluble. Hydroxyethyl cellulose bụ ihe dị mkpa na-agba agba na agba latex. Ka anyị lekwasị anya n'otú e si eji hydroxyethyl cellulose HEC na agba latex na nlezianya.
1. Ejiri nne mmanya na-aba n'anya maka ojiji: buru ụzọ jiri hydroxyethyl cellulose HEC dozie nne mmanya na-aba n'anya dị elu, wee tinye ya na ngwaahịa ahụ. Uru nke usoro a bụ na ọ nwere mgbanwe dị ukwuu ma nwee ike itinye ya ozugbo na ngwaahịa emechara, mana a ga-echekwa ya nke ọma. Nzọụkwụ nke usoro a yiri ọtụtụ usoro na usoro 2; ihe dị iche bụ na ọ dịghị mkpa maka onye na-eme ihe ike dị elu, ma ọ bụ naanị ụfọdụ ndị na-eme ihe ike na-enwe ike zuru ezu iji mee ka hydroxyethyl cellulose na-agbasasị n'otu n'otu na ngwọta nwere ike ịga n'ihu na-enweghị nkwụsịtụ ruo mgbe agbazere kpamkpam n'ime ngwọta viscous. Otú ọ dị, a ghaghị iburu n'uche na a ga-agbakwunye ọgwụ fungicides na mmanya nne ozugbo enwere ike.
2. Tinye ozugbo n'oge mmepụta: usoro a bụ nke kachasị mfe ma na-ewe oge kacha nta. Tinye mmiri dị ọcha na nnukwu ịwụ nke nwere nnukwu mixer. Malite ịmalite na-aga n'ihu na obere ọsọ ma jiri nwayọọ nwayọọ gbanye hydroxyethyl cellulose n'ime ngwọta nke ọma. Gaa n'ihu na-akpali ruo mgbe etinyere irighiri ihe niile. Mgbe ahụ tinye ihe nchekwa na ihe mgbakwunye dị iche iche. Dị ka pigmenti, ihe enyemaka na-agbasasị, mmiri amonia, wdg. Na-akpali ruo mgbe niile hydroxyethyl cellulose HEC na-agbaze kpamkpam (viscosity nke ngwọta na-abawanye n'ụzọ doro anya) wee tinye ihe ndị ọzọ na usoro maka mmeghachi omume.
Ebe ọ bụ na elu-emeso hydroxyethyl cellulose HEC bụ powdery ma ọ bụ fibrous siri ike, mgbe ị na-akwadebe hydroxyethyl cellulose nne mmanya, ntị na-esonụ isi:
(1) Mgbe ị na-eji nnukwu viscosity hydroxyethyl cellulose HEC, ịta nke nne mmanya ekwesịghị ịdị elu karịa 2.5-3% (site na ibu), ma ọ bụghị na nne mmanya ga-esi ike ijikwa.
(2) Tupu na mgbe agbakwunyere hydroxyethyl cellulose HEC, a ghaghị ịkpali ya mgbe niile ruo mgbe ngwọta ya zuru oke ma doo anya.
(3) Dị ka o kwere mee, tinye ihe na-akpata antifungal n'ọdịnihu.
(4) Mmiri mmiri na pH uru nke mmiri nwere mmekọrịta doro anya na mgbasa nke hydroxyethyl cellulose, ya mere e kwesịrị ịkwụ ụgwọ nlebara anya pụrụ iche.
(5) E tinyela ihe ụfọdụ alkaline na ngwakọta tupu e tinye ya na mmiri hydroxyethyl cellulose ntụ ntụ. Ịkwalite pH mgbe ịsachara ga-enyere aka igbari.
(6) A ga-eji nwayọọ nwayọọ gbanye ya n'ime tankị agwakọta, ma etinyela ọnụ ọgụgụ buru ibu ma ọ bụ tinye ya ozugbo hydroxyethyl cellulose nke mebere lumps na bọọlụ n'ime tankị ngwakọta.
Ihe ndị dị mkpa na-emetụta viscosity nke agba latex:
(1) Corrosion nke thickener site microorganisms.
(2) Na agba ime usoro, ma usoro usoro nke ịgbakwunye thickener kwesịrị ekwesị.
(3) Ma ọnụọgụ nke onye na-arụ ọrụ elu na mmiri ejiri mee ihe na agba agba kwesịrị ekwesị.
(4) Ọnụ ọgụgụ nke ihe ndị na-emepụta ihe ndị ọzọ sitere n'okike na ọnụọgụ nke hydroxyethyl cellulose na nhazi agba.
(5) Mgbe e guzobere latex, ọdịnaya nke ihe ndị na-emepụta ihe na ihe ndị ọzọ oxides.
(6) Okpomọkụ dị oke elu n'oge mgbasa n'ihi oke mkpali.
(7) Ka ikuku ikuku na-anọgide na agba, otú ahụ ka viscosity dị elu.
Viscosity nke hydroxyethyl cellulose HEC na-agbanwe ntakịrị na pH nso nke 2-12, mana viscosity na-ebelata karịa oke a. Ọ nwere ihe onwunwe nke ndim, nkwusioru, njide, emulsifying, dispersing, ịnọgide na-enwe mmiri ma na-echebe colloid. Enwere ike ịkwadebe ngwọta na ọkwa viscosity dị iche iche. Akwụsịghị n'okpuru nkịtị okpomọkụ na nrụgide, zere iru mmiri, okpomọkụ, na elu okpomọkụ, na nwere Wezuga ezi nnu solubility dielectrics, na aqueous ngwọta kwere ka nwere elu ịta nke salts na-anọgide na-akwụsi ike.
Oge nzipu: Eprel-01-2023