(1) Mkpebi nke viscosity: a na-akwadebe ngwaahịa a mịrị amị n'ime ngwọta mmiri na-ebu ibu nke 2 Celsius C, ma tụọ ya site na viscometer ntụgharị nke ndj-1;
(2) Ọdịdị nke ngwaahịa ahụ bụ ntụ ntụ. Agbakwunyere ngwaahịa ozugbo na “s” yana ngwaahịa akara ọgwụ ka ejiri “y” mechie. Dịka ọmụmaatụ, me-4000s bụ ngwaahịa ozugbo nke m-4000.
01. Otu esi eji hydroxypropyl methylcellulose
Tinye ozugbo n'oge mmepụta, usoro a bụ usoro kachasị mfe na nke kacha nso na-ewe oge, usoro ndị a kapịrị ọnụ bụ:
1. Tinye ụfọdụ mmiri na-esi esi n'ime arịa na-akpali akpali nke nwere oke nrụgide siri ike ( ngwaahịa hydroxyethyl cellulose bụ soluble na mmiri oyi, yabụ tinye naanị mmiri oyi);
2. Gbanwee ihe na-akpali akpali na obere ọsọ, ma jiri nwayọọ nwayọọ na-agbanye ngwaahịa ahụ n'ime akpa ahụ;
3. Gaa n'ihu na-akpalite ruo mgbe etinyere ihe niile;
4. Tinye mmiri oyi zuru oke ma nọgide na-akpali ruo mgbe ngwaahịa niile agbazere kpamkpam (nghọta nke ngwọta na-abawanye nke ukwuu);
5. Mgbe ahụ tinye ihe ndị ọzọ na usoro.
Kwadebe mmanya na-egbu nne maka ojiji: Usoro a bụ iji mee ngwaahịa ahụ ka ọ bụrụ mmanya nne na-ebu ụzọ tinye uche dị elu, wee tinye ya na ngwaahịa ahụ. Uru ya bụ na ọ nwere mgbanwe dị ukwuu ma nwee ike itinye ya ozugbo na ngwaahịa emechara. Nzọụkwụ ndị ahụ bụ otu usoro (1-3) na usoro mgbakwunye ozugbo. Mgbe emechara ngwaahịa ahụ n'ụzọ zuru oke, hapụ ya ka ọ guzoro maka ntụ oyi eke ka ọ gbazee, wee kpalite nke ọma tupu ejiri ya. Ekwesiri iburu n'uche na a ga-agbakwunye onye na-ahụ maka antifungal na nne mmanya ozugbo enwere ike.
Ngwakọta akọrọ: mgbe akọrọ nke ọma na-agwakọta ngwaahịa ntụ ntụ na ihe ntụ ntụ (dị ka ciment, gypsum ntụ ntụ, ụrọ ceramiiki, wdg), gbakwunye mmiri kwesịrị ekwesị, kpochaa ma kpalie ruo mgbe ngwaahịa ahụ gbazere kpamkpam.
Mgbasa nke ngwaahịa mmiri oyi na-agbaze: ngwaahịa mmiri oyi nwere ike ịgbakwunye na mmiri oyi maka mgbaze. Mgbe agbakwunyere na mmiri oyi, ngwaahịa ahụ ga-ada ngwa ngwa. Mgbe mmiri gachara ruo oge ụfọdụ, malite ịkpali ruo mgbe agbazere kpamkpam.
02. Akpachara anya mgbe ị na-akwadebe ngwọta
(1) Ngwaahịa na-enweghị ọgwụgwọ elu (ma e wezụga hydroxyethyl cellulose) agaghị agbaze ozugbo na mmiri oyi.
(2) A ga-eji nwayọọ nwayọọ gbanye ya n'ime akpa agwakọta, etinyela nnukwu ego ozugbo ma ọ bụ ngwaahịa nke mebere ka ọ bụrụ ngọngọ n'ime akpa agwakọta.
(3) Mmiri mmiri na ph uru nke mmiri nwere njikọ doro anya na mgbasa nke ngwaahịa, ya mere, a ghaghị ịkwụ ụgwọ nlebara anya pụrụ iche.
(4) Akwụsịla ihe ụfọdụ alkaline na ngwakọta tupu etinye ntụ ntụ ngwaahịa na mmiri. Ịkwalite pH mgbe ịsachara ga-enyere aka igbari.
(5) Dị ka o kwere mee, tinye ihe na-akpata antifungal n'ọdịnihu.
(6) Mgbe ị na-eji ngwaahịa viscosity dị elu, ịdị arọ nke nne mmanya ekwesịghị ịdị elu karịa 2.5-3%, ma ọ bụghị ya, ọ ga-esiri ike ijide ya.
(7) Agaghị eji ngwaahịa agbazere ozugbo na nri ma ọ bụ ngwaahịa ọgwụ.
Oge nzipu: Mar-23-2023