amakuru

Kubera ko ubushyuhe bwa resin ishingiye ku mazi ari buke cyane, ntabwo ishobora guhaza ibikenewe mu kubika no kubaka igipfundikizo, bityo ni ngombwa gukoresha icyuma gifasha gukurura kugira ngo uhindure ubushyuhe bwa resin ishingiye ku mazi ku rwego rukwiye.

Hari ubwoko bwinshi bw'ibikoresho bigabanya ubushyuhe. Mu guhitamo ibikoresho bigabanya ubushyuhe, uretse ubushobozi bwabyo bwo gukurura no kugenzura uburyo bwo gutwikira, hari ibindi bintu bigomba kwitabwaho kugira ngo ibikoresho bigabanya ubushyuhe bigire imikorere myiza mu bwubatsi, imiterere myiza ya firime igabanya ubushyuhe kandi bimara igihe kirekire.

Guhitamo ubwoko bw'ibibyimba binini ahanini bishingiye ku bikenewe n'uko bihagaze mu buryo nyabwo.

Mu guhitamo no gukoresha ibikoresho bigabanya ubushyuhe, ibi ni ingenzi.

1. HEC ifite uburemere bwinshi bwa molekile ifite urugero rwo kwivanga ugereranije n'uburemere buke bwa molekile kandi igaragaza ubushobozi bwo kwiyongera cyane mu gihe cyo kubika. Kandi iyo igipimo cyo gukata kiyongera, imiterere yo kuzunguruka irangirika, uko igipimo cyo gukata kirushaho kuba kinini, niko ingaruka z'uburemere bwa molekile ku bucucike zigabanuka. Ubu buryo bwo gukata ntaho buhuriye n'ibikoresho by'ibanze, amarangi n'inyongera bikoreshwa, bisaba gusa guhitamo uburemere bukwiye bwa molekile ya selulose no guhindura ingano y'umubyimba ushobora kubona ubucucike bukwiye, bityo bigakoreshwa cyane.

2.HEUR thickener ni umuti w'amazi urimo diol cyangwa diol ether nk'umuti uvanze, ufite ingano ikomeye ya 20% ~ 40%. Inshingano ya co-solvent ni ukubuza gufatana, bitabaye ibyo, ibyo bintu bivanze biba biri mu rugero rumwe rwa gel. Muri icyo gihe, kuba hari umuti uvanze bishobora kwirinda gukonjesha, ariko ugomba gushyushywa mu gihe cy'itumba mbere yo kuwukoresha.

3. Ibikoresho bito bikomeye kandi bifite ubukana buke biroroshye kubijugunya kandi bishobora gutwarwa no kubikwa mu bwinshi. Kubwibyo, bimwe mu bikoresho binini bya HEUR bifite ubukana butandukanye bw’ibicuruzwa bimwe. Ubukana bw’ibinini binini bya viscosity ni bwinshi, kandi ubukana bw’irangi hagati mu gukaraba buzaba buke gato iyo bukoreshejwe, ibyo bikaba bishobora gukurwaho no kugabanya ubukana bw’ibinini byongerwa ahandi mu buryo bwo gukaraba.

4. Mu gihe cyo kuvanga neza, HEUR ifite ubukana buke ishobora kongerwamo irangi rya latex. Iyo ukoresheje ibikoresho bifite ubukana bwinshi, ikibyimba kigomba kuvangwa n'amazi n'ibindi bivanze mbere yo kongeramo. Iyo wongeyemo amazi kugira ngo uvange ikibyimba neza, bizagabanya ubukana bwabyo mu bicuruzwa, bikongera uburyo bifatanye kandi bigatuma ubukana bwiyongera.

5. Kongeramo imashini igabanya ubushyuhe mu gikoresho cyo kuvanga bigomba kuba bihamye kandi buhoro, kandi bigomba gushyirwa ku rukuta rw'ikigega. Umuvuduko wo kongeramo ntugomba kuba wihuta cyane ku buryo imashini ikomeza kuba hejuru y'amazi, ahubwo igomba gukururwa mu mazi ikazungurutswa hafi y'aho ivangwa, bitabaye ibyo imashini igabanya ubushyuhe ntizavangwa neza cyangwa imashini igabanya ubushyuhe cyangwa ikavangwa bitewe n'ubwinshi bw'amazi mu gace runaka.

6. Imashini igabanya ubushyuhe ya HEUR yongerwa mu gikoresho cyo kuvanga irangi nyuma y'ibindi bice by'amazi na mbere yo kuyivanga, kugira ngo igaragare neza.

7. Ibikoresho bigabanya ubushyuhe bya HASE byongerwa ku irangi mu buryo bwa emulsion mu gukora amarangi ya emulsion bitabanje gushonga cyangwa ngo bibe byangiritse mbere. Bishobora kongerwaho nk'igice cya nyuma mu cyiciro cyo kuvanga, mu cyiciro cyo gukwirakwiza ibara, cyangwa nk'igice cya mbere mu kuvanga.

8. Kubera ko HASE ari emulsion ifite aside nyinshi, nyuma yo kongeramo, niba hari alkali mu irangi rya emulsion, izahatanira iyi alkali. Kubwibyo, ni ngombwa kongeramo emulsion ya HASE thickener buhoro buhoro kandi buhoro, no kuvanga neza, bitabaye ibyo, bizatuma sisitemu yo gukwirakwiza ibara cyangwa emulsion binder ihagarara, kandi iyi ya nyuma ihagarara neza bitewe n'itsinda ry'ubuso bwangiritse.

9. Alkali ishobora kongerwamo mbere cyangwa nyuma yuko hongewemo ikintu cyo gukurura. Icyiza cyo kongeramo mbere ni ukumenya neza ko nta guhindagurika kw'aho ibara rikwirakwira cyangwa ikintu cyo gukurura cyatewe n'uko icyo kintu gikurura alkali gifata hejuru y'icyo kintu. Icyiza cyo kongeramo alkali nyuma ni uko uduce tw'icyo kintu gikurura tuba dutatanye neza mbere yuko tubyimba cyangwa dushonga na alkali, bikarinda ko ikintu gikurura cyangwa gukurura, bitewe n'uburyo cyakozwe, ibikoresho n'uburyo cyakozwe. Uburyo bwizewe ni ukubanza gusukamo icyo kintu gikurura HASE n'amazi hanyuma ukagikuraho mbere y'igihe.

10. Imashini igabanya ubushyuhe ya HASE itangira kubyimba kuri pH ya 6, kandi ubushobozi bwo kubyimba butangira gukoreshwa neza kuri pH ya 7 kugeza kuri 8. Guhindura pH y'irangi rya latex ikagera hejuru ya 8 bishobora gutuma pH y'irangi rya latex idagabanuka munsi ya 8, bityo bigatuma ubushyuhe bukomeza.