amakuru

Kubera ko ibishishwa by’amazi ashingiye ku mazi ari bike cyane, ntibishobora guhaza ibikenerwa byo kubika no kubaka imikorere y’igitambaro, bityo rero birakenewe ko hakoreshwa umubyimba ukwiye kugira ngo uhindure ubwiza bw’amazi ashingiye ku mazi uko bikwiye.

Hariho ubwoko bwinshi bwibibyimbye.Mugihe uhisemo kubyimbye, usibye kubyibuha neza no kugenzura imiterere ya rheologiya, ibindi bintu bimwe na bimwe bigomba kwitabwaho kugirango igipfundikizo kigire imikorere myiza yubwubatsi, isura nziza ya firime hamwe nubuzima bwa serivisi ndende.

Guhitamo amoko yibyibushye ahanini bishingiye kubikenewe hamwe nuburyo nyabwo bwimiterere.

Mugihe uhitamo no gukoresha umubyimba, ibi nibyingenzi.

1. Uburemere buke bwa molekuline HEC ifite urwego runini rwo kwizirika ugereranije nuburemere buke bwa molekile kandi ikagaragaza uburyo bwiza bwo kubyimba mugihe cyo kubika.Kandi iyo igipimo cyogosha cyiyongereye, leta ihindagurika irasenywa, uko igipimo cyogosha kinini, ningaruka ntoya yuburemere bwa molekile kumitsi.Ubu buryo bwo kubyimba ntaho buhuriye nibintu fatizo, pigment ninyongeramusaruro zikoreshwa, gusa ukeneye guhitamo uburemere bukwiye bwa selile ya selile hanyuma ugahindura ubunini bwikibyimba gishobora kubona ububobere bukwiye, bityo bigakoreshwa henshi.

2.HEUR umubyimba nigisubizo cyamazi cyamazi hamwe na diol cyangwa diol ether nka co-solvent, hamwe nibintu 20% ~ 40%.Uruhare rwa co-solvent ni ukubuza gufatira hamwe, bitabaye ibyo kubyimba biri muri gel muri reta imwe.Muri icyo gihe, kuba hari ibishishwa bishobora kwirinda ibicuruzwa gukonja, ariko bigomba gushyukwa mu gihe cy'itumba mbere yo kubikoresha.

3. Ibicuruzwa bito-bikomeye, bifite ubukonje buke biroroshye kujugunya kandi birashobora gutwarwa no kubikwa kubwinshi.Kubwibyo, bimwe mubyibushye bya HEUR bifite ibintu bitandukanye bitandukanye byo gutanga ibicuruzwa bimwe.Ibishobora gufatanyirizwa hamwe kubyibushye buke biri hejuru, kandi hagati yimyenda yo hagati y-irangi bizagabanuka gato iyo bikoreshejwe, bishobora gusibanganywa no kugabanya ibimera byongewe ahandi muburyo bwo kubikora.

4. Mugihe gikwiye cyo kuvanga, HE-viscosity HEUR irashobora kongerwaho muburyo butagaragara.Iyo ukoresheje ibicuruzwa byinshi byijimye, kubyimbye bigomba kuvangwa nuruvange rwamazi hamwe na co-solvent mbere yuko byongerwaho.Niba wongeyeho amazi kugirango ugabanye umubyimba utaziguye, bizagabanya kwibumbira hamwe kwumwimerere wa co-solvent mubicuruzwa, bizongera gufatira hamwe no gutuma ububobere bwiyongera.

5. Ongeraho umubyimba mukigega cyo kuvanga bigomba kuba bihamye kandi bitinda, kandi bigomba gushyirwa kuruhande rwurukuta.Umuvuduko wo kongeramo ntugomba kwihuta cyane kuburyo umubyimba uguma hejuru yamazi, ariko ugomba gukururwa mumazi hanyuma ukazunguruka uzengurutse uruziga rukurura, bitabaye ibyo umubyimba ntuzavangwa neza cyangwa umubyimba uzaba mwinshi cyane. cyangwa guhindagurika kubera kwibanda cyane kwaho.

6. Ubushyuhe bwa HEUR bwongewe kumazi avanga irangi nyuma yibindi bikoresho byamazi na mbere ya emulsiyo, kugirango habeho ububengerane bwinshi.

7. HASE yibyibushye byongewe kumarangi muburyo bwa emulsiyo mugukora amarangi ya emulsiyo mbere yo kuyisohora mbere cyangwa kutabogama.Irashobora kongerwaho nkibice byanyuma mugice cyo kuvanga, mugice cyo gukwirakwiza pigment, cyangwa nkigice cya mbere mukuvanga.

8. Kubera ko HASE ari emulioni ya acide nyinshi, nyuma yo kongeramo, niba hari alkali mumarangi ya emulsion, izahatanira iyi alkali.Kubwibyo, birasabwa kongeramo HASE yibyibushye buhoro buhoro kandi bihamye, hanyuma bikabyutsa neza, bitabaye ibyo, bizakora sisitemu yo gukwirakwiza pigment cyangwa emulsion ihuza umutekano muke waho, hanyuma ibyanyuma bigahagarikwa nitsinda ryubutaka butabogamye.

9. Alkali irashobora kongerwaho mbere cyangwa nyuma yo kongera umubyimba.Ibyiza byo kongeramo mbere ni ukureba ko nta guhungabana kwaho gutatanya pigment cyangwa guhuza emulsion bizaterwa no kubyimba gufata alkali hejuru yubuso bwa pigment cyangwa binder.Ibyiza byo kongeramo alkali nyuma ni uko ibice byibyimbye bitatanye neza mbere yuko byabyimba cyangwa bigashonga na alkali, bikarinda kubyimba cyangwa guhuriza hamwe, bitewe nuburyo byakozwe, ibikoresho nuburyo bwo gukora.Uburyo bwizewe ni ukugabanya umubyimba wa HASE ukoresheje amazi hanyuma ukayitandukanya na alkali mbere.

10 , bityo ukemeza gushikama kwijimye.