Hamwe niterambere hamwe nogukoresha amazi ashingiye kumarangi ya latx, guhitamo irangi rya latex biratandukanye. Guhindura imvugo na viscosity kugenzura amarangi ya latex kuva murwego rwo hejuru, ruciriritse kandi ruto. Guhitamo no gushyira mubyimbye kumarangi ya latex hamwe na latx irangi muri sisitemu zitandukanye za emulsiyo (acrylic yera, styrene-acrylic, nibindi).
Uruhare runini rwibibyibushye mu irangi rya latex, aho rheologiya ari kimwe mubintu byingenzi bigize isura n'imikorere ya firime. Tekereza kandi ku ngaruka ziterwa n'ubukonje ku mvura ya pigment, guhanagura, kuringaniza, kuzuza firime irangi, hamwe na sag ya firime yo hejuru mugihe cyo gukaraba neza. Ibi nibibazo bifite ireme ababikora bakunze kuzirikana.
Ibigize igifuniko bigira ingaruka kuri rheologiya y irangi rya latex, kandi ibishishwa birashobora guhinduka muguhindura imitekerereze ya emulsiyo hamwe nubunini bwibindi bintu bikomeye byakwirakwijwe mu irangi rya latex. Ariko, ibipimo byo guhindura ni bike kandi ikiguzi ni kinini. Ubukonje bwirangi rya latex burahindurwa cyane cyane. Ibibyimbye bikoreshwa cyane ni: selile ya ether ya selile, alkali-yabyimbye ya polyacrylic acide emulsiyasi, umubyimba wa ionic Associative polyurethane, n'ibindi. Agaciro k'umusaruro ni nini. Urunigi nyamukuru rwa hydrophobique ya selile ya selile ifitanye isano na molekile zamazi zikikije binyuze muri hydrogène ihuza, ibyo bikaba byongera ubwinshi bwamazi ya polymer ubwayo. Umwanya wo kugenda kubuntu ibice bigabanutse. Ubukonje bwa sisitemu bwiyongereye, kandi imiterere ihuza imiyoboro ihuza imiyoboro hagati ya pigment nuduce twa emulsion. Gutandukanya pigment nizindi, uduce twa emulsion gake gake adsorb.
Igihe cyo kohereza: Ugushyingo-02-2022