Ifu ya latex ishobora gusubirwamo hamwe n'ibindi bikoresho bidafite umwimerere (nk'isima, lime ya slaked, gypsum, nibindi) hamwe n'ibindi bikoresho bitandukanye, ibintu byuzuza n'ibindi bikoresho (nk'imyumbati ya methyl hydroxypropyl cellulose, starch ether, lignocellulose, hydrophobic, nibindi) kugira ngo bivangwe neza kugira ngo hakorwe sima yumye. Iyo sima yumye ivanze yongewe mu mazi ikavunga, uduce tw'ifu ya latex tuzakwirakwizwa mu mazi binyuze mu gikorwa cya colloid irinda amazi n'uburyo bwo gukata. Igihe gisabwa kugira ngo ifu isanzwe ya latex ishobora gusubirwamo ikwirakwizwe ni gito cyane, kandi iki gipimo cy'igihe cyo gusubirwamo ni ingenzi mu gusuzuma ubwiza bwayo. Mu ntangiriro zo kuvanga, ifu ya latex iba yaratangiye kugira ingaruka ku mikorere ya sima.
Bitewe n'imiterere itandukanye n'impinduka za buri fu ya latex igabanyijemo ibice, iyi ngaruka nayo iratandukanye, zimwe zigira ingaruka zo gufasha amazi gutemba, izindi zigira ingaruka ziyongera za thixotropy. Uburyo ingaruka zayo ziva mu bintu byinshi, harimo ingaruka z'ifu ya latex ku buryo amazi ahuzwa n'amazi mu gihe cyo gukwirakwira, ingaruka z'ubukana butandukanye bw'ifu ya latex nyuma yo gukwirakwira, ingaruka za colloid irinda, n'ingaruka za sima n'imikandara y'amazi. Ingaruka zirimo kwiyongera k'umwuka mu gishishwa no gukwirakwira kw'udupira tw'umwuka, ndetse n'ingaruka z'inyongera zayo ndetse n'imikoranire n'izindi nyongera. Kubwibyo, guhitamo ifu ya latex ishobora gukwirakwira mu buryo bwihariye kandi bugabanyijemo ibice ni uburyo bw'ingenzi bugira ingaruka ku bwiza bw'umusaruro. Igitekerezo gikunze kugaragara ni uko ifu ya latex ishobora gukwirakwira mu kirere ikunze kongera ingano y'umwuka mu gishishwa, bityo ikagabanya imiterere y'igishishwa, kandi ubukana n'ubukana bw'ifu ya latex, cyane cyane colloid irinda, ku mazi iyo itatanye. Kongera ubukana bifasha kunoza uburyo igishishwa cy'ubwubatsi gihurirana, bityo bikanoza ubushobozi bwo gukora bwa gishishwa. Nyuma y’ibyo, sima itose irimo ifu ya latex ikwirakwizwa ku buso bw’akazi. Iyo amazi agabanutse ku nzego eshatu - kwinjiza urwego rw’ibanze, gukoresha sima ikoreshwa, no guhindagurika kw’amazi yo hejuru mu kirere, uduce twa resin tugenda twegera buhoro buhoro, aho duhurira buhoro buhoro, amaherezo tukaba firime ya polymer ikomeza. Iyi gahunda ibera cyane cyane mu mwenge w’isima no ku buso bw’ikintu gikomeye.
Hakwiye gushimangirwa ko kugira ngo iyi nzira ihinduke burundu, ni ukuvuga ko iyo firime ya polimeri yongeye guhura n'amazi, itazongera gukwirakwira, kandi koloyide irinda ifu ya latex ishobora guhindurwa igomba gutandukanywa n'imashini ya polime. Iki si ikibazo muri sisitemu ya sima ya alkaline, kuko izahinduka saponified na alkali ikomoka ku mazi ya sima, kandi icyarimwe, kwinjizwa kw'ibikoresho bimeze nka quartz bizayitandukanya buhoro buhoro n'iyi sisitemu, hatabayeho uburinzi bwa hydrophilicity. Colloids, idashonga mu mazi kandi ikorwa no gukwirakwira rimwe kwa latex ishobora guhindurwa, ishobora gukora atari mu bihe byumye gusa, ahubwo no mu bihe by'igihe kirekire byo kwinjizwa mu mazi. Mu buryo butari ubwa alkali, nka sisitemu za gypsum cyangwa sisitemu zifite gusa utwuma duto, ku mpamvu runaka, colloid irinda iracyariho igice muri firime ya nyuma ya polimeri, ibyo bigira ingaruka ku budahangarwa bw'amazi bwa firime, ariko kubera ko ubu buryo budakoreshwa mu gihe cyo kwinjizwa mu mazi igihe kirekire, kandi polimeri igifite imiterere yayo yihariye ya mashini, ntabwo igira ingaruka ku ikoreshwa ry'ifu ya latex ishobora kongera gushonga muri ubu buryo.
Mu gihe habayeho firime ya nyuma ya polimeri, sisitemu y'urukiramende igizwe n'ibifunga bidafite umwimerere n'ibikomoka ku bimera ikorwa muri mortilage yavuwe, ni ukuvuga ko ibikoresho bya hydraulic bikora firime ishaje kandi ikomeye, kandi ifu ya latex ishobora gukurwamo ikora firime hagati y'icyuho n'ubuso bukomeye. Guhuza byoroshye. Ubwo bwoko bw'ihuriro bushobora gufatwa nk'ubuhujwe n'amagufwa akomeye n'amasoko menshi mato. Kubera ko imbaraga zo gukurura za firime ya polimeri ya resin ikorwa n'ifu ya latex akenshi ziba zirenze urugero rw'ibikoresho bya hydraulic, imbaraga za mortilage ubwazo zishobora kongerwa, ni ukuvuga ko guhuza kwazongerwa. Kubera ko ubwiyongere n'ubushobozi bwo kwangirika kwa polimeri biri hejuru cyane y'imiterere ikomeye nka sima, ubushobozi bwo kwangirika kwa mortilage burarushaho kwiyongera, kandi ingaruka zo gutatanya zirarushaho kwiyongera cyane, bityo bikanoza ubushobozi bwo kwangirika kwa mortilage.
Igihe cyo kohereza: Werurwe-07-2023