HEC mu nganda zikora irangi

Hydroxyethyl cellulose (HEC)ni igikoresho cy'ingenzi cya polymer kidashonga mu mazi, gitegurwa hakoreshejwe uburyo bwa "cellulose" karemano, gishyirwamo na "ethylene oxide". Kubera ko HEC ikora ibintu byinshi, ikora neza, ikomeza gukurura no gukora filime, yakoreshejwe cyane mu nganda zikora irangi. Imiterere yayo myiza ya rheological, ubushobozi bwayo bwo guhuza neza n'imiterere yayo ihamye ya shimi ituma iba ingenzi cyane mu buryo bugezweho bwo gusiga irangi.

1. Imiterere y'ibanze ya HEC

HEC ifite ubushobozi bwo gushonga neza mu mazi kandi ishobora gushonga vuba mu mazi akonje cyangwa ashyushye kugira ngo ikore umuti wa colloidal ubonerana kandi uhamye. Ubushyuhe bw'umuti wayo bugira ingaruka zikomeye ku bintu nk'ubwinshi bw'umuti, ubushyuhe, n'umuvuduko wo gukata, kandi igaragaza imyifatire isanzwe y'amazi ya pseudoplastic (ni ukuvuga imiterere yo gukata). Byongeye kandi, HEC ifite ubushobozi bwo guhagarara neza mu rugero rwa pH (2–12), kwihanganira cyane electrolytes, kandi ntiyoroshye kwangirika na mikorobe (udukoko duto dukunze kongerwamo kugira ngo twongere ubushobozi bwo kubika).

Ibyiza by'ingenzi by'imikorere ya HEC birimo:

Ingaruka zo gushonga: Kongera ubukana bw'uburyo bwo gusiga no kunoza imikorere y'ubwubatsi bw'igishishwa.

Kugenzura imikorere y'imitsi: kunoza imiterere yo kugabanuka no kugabanya imiterere y'igitambaro.

Kubika amazi: birinda amazi guhumeka vuba cyane mu gihe cyo kubaka no kunoza ubwiza bwa firime.

Gutuza: kubungabunga ubusugire bw'ifishi mu bihe bitandukanye by'ibidukikije.

Gutatana: bifasha irangi n'ibirungo gukwirakwira neza kandi bikarinda imvura no gushonga kw'amazi.

2. Gukoresha hydroxyethyl cellulose mu nganda zikora irangi

Mu nganda zikora irangi, cyane cyane mu bijyanye n'irangi rishingiye ku mazi, HEC ikoreshwa cyane, cyane cyane muri ibi bikurikira:

(1) Nk'ikintu gifasha mu gukurura

HEC ishobora kongera ubukana rusange bw'ubushyuhe bw'amazi no guha ubushyuhe bwiza bw'ubushyuhe. Ingano ikwiye ya HEC ishobora kubuza ubushyuhe kugwa mu gihe cyo koza, gusiga irangi cyangwa gutera irangi, kandi igafasha kunoza ubwiza n'ubunini bw'ubushyuhe bw'ubushyuhe. Byongeye kandi, ubushobozi bwa HEC bwo gukata butuma irangi rigenda neza iyo hakoreshejwe imbaraga zo hanze (nk'ubushyuhe, gutera irangi), kandi ubushyuhe bugasubizwa iyo buhagaze kugira ngo budakomeza kugwa.

(2) Guhindura imiterere y'imitsi y'amaraso

Rheology ni kimwe mu bimenyetso by'ingenzi byerekana imikorere y'ipamba rishingiye ku mazi. HEC ihindura ingano y'umusaruro n'umurongo w'amazi unyuramo kugira ngo igere ku miterere myiza y'amazi n'uburyo bwo kuyakwirakwiza mu buryo butandukanye. Cyane cyane mu buryo bukomeye n'ubushyuhe bwinshi, HEC ishobora gutanga imiterere myiza y'ubwubatsi n'uburyo bwo kugena imiterere y'ubwubatsi, ikongera imikorere myiza y'ubwubatsi n'ubwiza bw'ipamba.

(3) Uruhare rw'ingufu zituza ibintu n'izikwirakwiza ibintu

Mu buryo bwo gusiga irangi, gukwirakwira neza kw'ibirangi n'ibirungo ni ingenzi cyane kugira ngo irangi rikomeze kubika neza no kugira irangi ryiza. HEC ishobora gukora urwego rwo kurinda hejuru y'ibirangi kugira ngo hirindwe kwiteranya no gushonga kw'ibirangi. Muri icyo gihe, iyo wongereye ubukana bw'urusobe rw'ibintu, birushaho kugabanya umuvuduko w'ibirangi mu gushonga, bityo bikanoza uburyo irangi rikomeza kubika neza no kuba ibara ringana.

(4) Kunoza imiterere yo kubika amazi no gukora filime

HEC ifite ubushobozi bwo kubika amazi neza. Ishobora gukumira amazi kwihuta mu gihe cyo kubaka, ibi bikaba ingirakamaro mu gukwirakwiza irangi, gukomeza gukora filime no kunoza imikorere ya nyuma yo gusiga. Cyane cyane iyo ikoreshejwe ku bushyuhe bwinshi, ubwumye cyangwa bufite imyenge, HEC ishobora kunoza cyane imiterere n'uburyo irangi rigenda neza.

3. Ibintu by'ingenzi bigira ingaruka ku mikorere ya HEC

Mu bikorwa byihariye, imikorere ya HEC igirwaho ingaruka n'ibintu bikurikira:

Ingano yo gusimbuza (DS) n'impinduka mu mitsi (MS): DS ihagarariye umubare w'amatsinda ya hydroxyl yasimbuwe kuri buri gice cya glucose, naho MS ihagarariye umubare mpuzandengo w'amatsinda ya hydroxyethyl yinjizwa kuri buri gice cya glucose. Muri rusange, uko agaciro ka DS kaba kari hejuru, niko HEC ishonga neza; uko agaciro ka MS kaba kari hejuru, niko umunyu urwanya ubushyuhe n'ubukonje birushaho kuba byiza.

Uburemere bwa molekile: Uko uburemere bwa molekile burushaho kuba bwinshi, niko ingaruka za HEC ziyongera, ariko igihe cyo gusenyuka nacyo kiragabanuka. Uburyo butandukanye bwo gukoresha (nk'imyambaro yo ku rukuta, imashini zo mu nganda) bufite ibisabwa bitandukanye ku buremere bwa molekile.

Gutunganya ubuso: Kugira ngo HEC ishobore gukwirakwira vuba mu mazi akonje, bimwe mu bicuruzwa bya HEC bitunganywa ku butaka kugira ngo bishobore gushonga vuba mu mazi akonje no kugabanya ubwiyongere bw'ibintu bibaho mu gihe cyo gushonga.

4. Ingero z'ishyirwa mu bikorwa

Mu bisigazwa by’inyubako nko mu irangi ry’imbere mu nkuta rya latex n’iry’inyuma mu guhindagurika kw’inkuta, HEC ikoreshwa nk’ikintu cy’ingenzi gifasha mu kugenzura ubukana no kugabanya ubukana bw’imitsi, ibyo bikaba bidatuma gusa inyubako irushaho kuba nziza, ahubwo binatuma irangi ritagwa neza kandi rigakoreshwa mu mitako. Mu bijyanye n’ibisigazwa by’inganda, ibisigazwa by’ibiti, irangi ryandika, nibindi, HEC ikoreshwa cyane bitewe n’uko ihamye kandi ihuye neza.

Hydroxyethyl cellulose yabaye igikoresho cy'ingenzi kandi cy'ingenzi mu gushushanya irangi rishingiye ku mazi bitewe n'imiterere yaryo myiza cyane nko gukurura, kugenzura rheology, kubika amazi no kudatatana. Bitewe n'amabwiriza akomeye yo kurengera ibidukikije ndetse n'ubwiyongere bw'ubukene bw'irangi rishingiye ku mazi, amahirwe yo gukoreshaHEC mu nganda zikora irangibizaba byagutse. Mu gihe kizaza, iterambere ry'ibicuruzwa bya HEC bifite ubushobozi bwo gushonga neza, kurwanya ikirere neza no gukora neza bizaba kimwe mu byerekezo by'ingenzi by'udushya mu ikoranabuhanga mu nganda zikora irangi.