Mu nganda zo gusiga amarangi, gutuza hamwe na rheologiya ya paste yamabara nibyingenzi. Nyamara, mugihe cyo kubika no gukoresha, paste yamabara ikunze kugira ibibazo nko kubyimba no guhuriza hamwe, bigira ingaruka mubikorwa byubwubatsi hamwe nubwiza bwa coating.Hydroxyethyl selulose (HEC), nkibisanzwe byamazi ya elegitoronike polymer, bigira uruhare runini mugutegura amarangi. Irashobora kunoza neza imiterere yimiterere yibara rya paste, ikarinda agglomeration, kandi igateza imbere ububiko.
1. Impamvu zo kubyimba no guteranya amarangi yamabara
Kwiyongera no guteranya amarangi yamabara asanzwe bifitanye isano nibi bikurikira:
Ikwirakwizwa rya pigment idahindagurika: Ibice bya pigment muri paste yamabara birashobora guhindagurika no gutuza mugihe cyo kubika, bikaviramo kwibanda cyane hamwe no guhuriza hamwe.
Guhumeka kw'amazi muri sisitemu: Mugihe cyo kubika, guhumeka igice cyamazi bizatera ubwiza bwibishishwa byamabara kwiyongera, ndetse bigakora ibintu byumye hejuru.
Kudahuza hagati yinyongeramusaruro: Ibibyimbye bimwe, ibitatanye cyangwa ibindi byongeweho bishobora kubyitwaramo, bikagira ingaruka kumiterere ya rheologiya ya paste yamabara, bigatuma ubwiyongere budasanzwe bwiyongera cyangwa kwibumbira hamwe.
Ingaruka zingufu zogosha: Kumara igihe kirekire gukanika cyangwa kuvoma bishobora gutera isenyuka ryimiterere yiminyururu ya polymer muri sisitemu, kugabanya umuvuduko wa paste yamabara, kandi bikarushaho kuba byiza cyangwa byegeranye.
2. Uburyo bwibikorwa bya hydroxyethyl selulose
Hydroxyethyl selulose (HEC) ni inkomoko ya selile idafite ionic ifite umubyimba mwiza, ubushobozi bwo guhindura imvugo no gutuza. Uburyo bwibanze bwibikorwa muri irangi ryamabara arimo:
Guhindura umubyimba hamwe na rheologiya: HEC irashobora guhuza na molekile zamazi binyuze mumazi ya hydrogène kugirango igire urwego ruhamye rwamazi, rwongere ubwiza bwimikorere ya sisitemu, irinde ibice bya pigment guhurira hamwe no gutura, kandi byemeze ko paste yamabara ikomeza gutembera neza mugihe uhagaze cyangwa wubatswe.
Sisitemu yo gukwirakwiza itajegajega: HEC ifite ibikorwa byiza byo hejuru, irashobora gutwikira ibice bya pigment, byongera itandukaniro ryayo mugice cyamazi, ikarinda guhurirana hagati yuturemangingo, bityo bikagabanya flokculation na agglomeration.
Kurwanya umwuka mubi: HEC irashobora gukora urwego runaka rwo kurinda, kugabanya umuvuduko wamazi wamazi, ikarinda paste yamabara kubyimba bitewe no gutakaza amazi, kandi ikongerera igihe cyo kubika.
Kurwanya ubwoya: HEC iha irangi thixotropy nziza, igabanya ubukonje bwimbaraga zogosha cyane, ikorohereza kubaka, kandi irashobora kugarura vuba ububobere bwimbaraga nkeya, bikanonosora imikorere y irangi.
3. Ibyiza bya hydroxyethyl selulose mumabara yamabara
Ongeramo hydroxyethyl selulose muri sisitemu yamabara ya paste ifite ibyiza bikurikira:
Kunoza ububiko bwibara ryibara ryibara: HEC irashobora gukumira neza imyanda yibimera hamwe noguhuriza hamwe, ikemeza ko ibara ryamabara rigumana amazi amwe nyuma yo kubikwa igihe kirekire.
Kunoza imikorere yubwubatsi: HEC itanga ibara ryibara ryiza ryimiterere ya rheologiya, byoroshye kwoza, kuzunguruka cyangwa gutera mugihe cyubwubatsi, kunoza imiterere yubwubatsi.
Kongera imbaraga zo kurwanya amazi: HEC irashobora kugabanya ihinduka ryijimye ryatewe no guhumeka kwamazi, kugirango paste yamabara ibashe gukomeza umutekano muke mubihe bidukikije bitandukanye.
Ubwuzuzanye bukomeye: HEC ni umubyimba utari ionic, ufite ubwuzuzanye bwiza nabatatanye benshi, ibikoresho byo guhanagura nibindi byongeweho, kandi ntibizatera ihungabana muri sisitemu yo gushiraho.
Kurengera ibidukikije n’umutekano: HEC ikomoka kuri selile isanzwe, yujuje ibyangombwa bisabwa byo kurengera ibidukikije, ntisohora ibintu byangiza, kandi ijyanye n’iterambere ry’icyatsi n’ibidukikije bigamije iterambere ry’amazi ashingiye ku mazi.
4. Gukoresha nibitekerezo bya hydroxyethyl selulose
Kugirango urusheho gukina neza inshingano za HEC, ingingo zikurikira zigomba kwitonderwa mugihe uyikoresheje muburyo bwo gutwika amabara:
Kugenzura neza umubare winyongera: Ingano ya HEC mubusanzwe iri hagati ya 0.2% -1.0%. Umubare wihariye wimikoreshereze ugomba guhinduka ukurikije ibikenewe muri sisitemu yo gutwikira kugirango wirinde ubukonje bukabije kandi bigira ingaruka kumyubakire.
Mbere yo gusesa: HEC igomba gutatanya no gushonga mumazi mbere, hanyuma ikongerwamo sisitemu ya paste nyuma yo gukora igisubizo kimwe kugirango irebe neza ko igira ingaruka nziza kandi ikwirakwiza.
Koresha hamwe nizindi nyongeramusaruro: Irashobora guhuzwa neza nogutatanya, ibikoresho byo guhanagura, nibindi kugirango utezimbere itandukanyirizo ryibimera no kunoza imikorere.
Irinde ingaruka zubushyuhe bwo hejuru: Gukemura kwa HEC bigira ingaruka cyane kubushyuhe. Birasabwa kuyasesa ku bushyuhe bukwiye (25-50 ℃) kugirango wirinde guhuriza hamwe cyangwa gushonga bidahagije.
Hydroxyethyl selileifite akamaro gakomeye mugukoresha irangi ryibara rya sisitemu. Irashobora gukemura neza ibibazo byamabara ya paste yibyimbye hamwe na agglomeration, kandi igateza imbere ububiko bwimikorere nibikorwa byubwubatsi. Kwiyongera kwayo, gutatana no gutwarwa no guhumeka kwamazi bituma iba inyongera yingenzi kumarangi ashingiye kumazi. Mubikorwa bifatika, guhindura neza dosiye ya HEC nuburyo bwo kongeramo birashobora kugwiza ibyiza byayo no kuzamura ubwiza rusange bwirangi. Hamwe niterambere ryamazi ashingiye kubidukikije byangiza ibidukikije, ibyifuzo bya HEC bizaba binini.
Igihe cyo kohereza: Apr-09-2025