Gukoresha HEC mu irangi rya latex

Selirulose ya Hydroxyethyl (HEC)ni polymeri idashonga mu mazi, ihinduka hakoreshejwe imiti ikomoka kuri cellulose karemano. Ifite ubushobozi bwo gushonga neza mu mazi, ikagira ubunini, ifata amazi neza kandi ikora filime. Mu irangi rya latex, hydroxyethyl cellulose ni ikintu cy'ingenzi kandi gikoreshwa cyane mu gusiga irangi imbere no hanze y'inkuta kugira ngo irusheho gushonga, ihamye, ikwirakwize, ihagarike kandi inoze ubushobozi bwo gukora.

1. Imiterere y'ingenzi ya hydroxyethyl cellulose

Gushonga neza mu mazi: HEC ishobora gushonga vuba mu mazi akonje no mu mazi ashyushye kugira ngo habeho umuti ubonerana kandi uhuriweho wa colloidal.

Ingaruka zigaragara zo gukuba: Bishobora kongera neza ubukana bw'irangi rya latex no kunoza imikorere yaryo no kuringaniza.

Gukomera cyane mu guhagarara: Bishobora gukumira ko irangi n'ibirungo bitamera neza kandi bikanoza uburyo irangi rya latex ribikwa.

Imiterere myiza yo gukora firime: Ifasha gukora firime nini yo gusiga no kunoza ubwiza n'ubugari bw'firime y'irangi.

Ihuza neza: Ihuza neza n'ubwoko butandukanye bwa emulsions, pigments, fillers n'ibindi birungo. 

2. Uruhare rwa hydroxyethyl cellulose mu irangi rya latex

Ibyimbisha: Kugenzura imiterere y'irangi mu maraso, kwirinda ko ritonyanga cyangwa ngo rimeneke, no kunoza imikorere yo koza no kuzunguruka.

Ikintu gifata amazi: Kirinda ko amazi yabura mu irangi mu gihe cyo kuritunganya no kunoza ubwiza bwaryo mu gihe cyo kumisha.

Iterambere: Kunoza uburyo emulsion na pigment filler bikwirakwira kandi bigakomera mu buryo butuma hirindwa ko ibintu bitandukana cyangwa bihurirana.

Kunoza imikorere y'inyubako: Kunoza uburyo bwo gusiga amavuta no koroshya inyubako kugira ngo koza neza kandi birusheho kuba byiza.

3. Uburyo bwo gukoresha

3.1. Uburyo bwo gukwirakwiza ifu yumye mu buryo butaziguye

Bikoreshwa mu mikorere y'ibikoresho byo gukwirakwiza ibintu byihuta cyane:

Shyiramo amazi meza yagenwe mu gikoresho cyo kuvanga;

Tangira uvange vuba cyane hanyuma ushyiremo buhoro buhoro ifu yumye ya HEC;

Komeza kuvanga iminota 15-30 kugeza igihe HEC itose neza kandi igatatana;

Hagarara amasaha 1-2 (cyangwa arengaho) kugira ngo ureke byimbe neza;

Ongera uvange kugeza igihe bishongeshejwe burundu kugira ngo bibe umuti umwe kandi ubonerana;

Ongeraho andi mavuta, amarangi, inyongera, nibindi kugira ngo ukore irangi rya latex.

3.2. Uburyo bwo gukoresha inzoga y'inka isanzwe ikozwe muri gelatinized

Bikwiriye gukorwa ku bwinshi, byoroshye gukoresha no gupima:

HEC yoza bwa mbere n'amazi;

Shyushya buhoro buhoro kugeza kuri 60-70°C ukoresheje umuvuduko muto kugira ngo isheshwe;

Cyangwa shyira mu bikorwa inzira yo gusenya wongeramo alkali nkeya (nk'amazi ya amoniya);

Nyuma yo gushonga, hakorwa inzoga y’inka isanzwe yashyizwemo gelatinized, ishobora kongerwamo irangi rya latex uko bikenewe.

4. Inama ku gipimo cy'umuti

Ingano ya hydroxyethyl cellulose yongerwa kuri latex irangi muri rusange ni 0.2% ~ 1.0% (hashingiwe ku bwiza bw'umusaruro urangiye), ibyo bigahindurwa hakurikijwe ubukana bukenewe n'imikorere y'ubwubatsi.

Ubushyuhe (muri rusange bushingiye ku gisubizo cy'amazi cya 2%) bufite amahitamo menshi, kuva kuri mPa·s icumi kugeza ku bihumbi amagana bya mPa·s. Izikunze gukoreshwa ni izi:

30.000~60.000 mPa·s: ku irangi rya latex rifite ubushyuhe buringaniye n'ubunini;

100.000~200.000 mPa·s: ku marangi manini cyangwa amarangi yo guteka.

5. Amabwiriza yo kwirinda

Uburyo bwo gukwirakwira ni ingenzi: ifu yumye igomba gukwirakwira neza kugira ngo hirindwe ko aho hantu hahurira ibintu bitoroshye no gushonga.

Irinde ko ibiryo bivangwa: Mu gihe wongeyeho HEC, ugomba gukomeza gukurura vuba kugira ngo hirindwe ko ifu ivangwa n’ibiryo.

Ubushobozi bwo kubika: Umuti wa HEC ugomba kubikwa ku bushyuhe bw'icyumba kugira ngo wirinde ko wahura n'ubushyuhe bwinshi cyangwa aside ikomeye na alkali igihe kirekire.

Ikizamini cyo guhuza: Uburyo HEC ihura na emulsions n'inyongera zikomoka ku nganda zitandukanye bishobora gutandukana, kandi formula igomba kugenwa nyuma y'ikizamini.

Nk'igikoresho cyo gukurura amazi gishongesha neza, gihendutse kandi kitangiza ibidukikije, ikoreshwa ryahydroxyethyl cellulose mu irangi rya latexiha umusaruro ubunararibonye bwiza mu kugenzura no kubaka. Mu guhitamo neza urwego rwa viscosity, kugenzura uburyo bwo kongeramo n'igipimo cya formula, imikorere y'irangi rya latex ishobora kunozwa cyane. Hamwe no gukomeza gukurikirana kurengera ibidukikije no gukora neza mu nganda zikora irangi, agaciro ka HEC kazakomeza kugaragara.