Nkibikoresho nyamukuru bifata putty, ingano yifu ya redxersible latex ifitemo ingaruka kumbaraga zihuza za putty.Figure 1 yerekana isano iri hagati yubunini bwifu ya latx isubirwamo nimbaraga za bond.Nkuko bigaragara kubishusho 1, hamwe na kwiyongera k'ubunini bwa re-dispersible latex ifu, imbaraga zububiko ziyongera buhoro buhoro.Iyo ingano yifu ya latex ari nto, imbaraga zo guhuza ziyongera hamwe no kwiyongera kwifu ya latex.Niba igipimo cyifu ya emulsion ari 2%, imbaraga zububiko zigera kuri 0182MPA, zujuje ubuziranenge bwigihugu cya 0160MPA.Impamvu nuko ifu ya hydrophilique latx hamwe nicyiciro cyamazi cyihagarikwa rya sima cyinjira mumyenge na capillary ya matrix, ifu ya latex ikora firime mumyenge na capillaries kandi ikamenyekana neza hejuru ya matrix, bityo ikemeza neza imbaraga zo guhuza ibikoresho bya sima na matrix [4].Iyo putty yakuwe ku isahani yikizamini, urashobora gusanga kwiyongera kwifu ya porox ya latx byongera ifatizo rya putty kuri substrate.Ariko, mugihe ingano yifu ya latex yari hejuru ya 4%, kwiyongera kwingufu zo guhuza byatinze.Ntabwo ari ifu ya latx isubirwamo gusa, ahubwo nibikoresho bidahinduka nka sima na karubone iremereye ya karubone bigira uruhare muguhuza imbaraga za putty.
Kurwanya amazi no kurwanya alkali ya putty nigipimo cyingenzi cyo gupima kugirango hamenyekane niba putty ishobora gukoreshwa nkurwanya amazi yurukuta rwimbere cyangwa urukuta rwinyuma.Igishushanyo cya 2 cyakoze ubushakashatsi ku ngaruka ziterwa nifu ya porojeri ya latx yongeye gukwirakwizwa kumazi ya putty
Nkuko bigaragara ku gishushanyo cya 2, iyo ingano yifu ya latex iri munsi ya 4%, hamwe no kwiyongera kwifu ya latex, igipimo cyo kwinjiza amazi cyerekana inzira igabanuka.Iyo dosiye irenze 4%, igipimo cyo kwinjiza amazi cyagabanutse buhoro.Impamvu nuko sima ari ibikoresho bihuza muri putty, mugihe nta fu ya latx isubirwamo yongeweho, hari umubare munini wubusa muri sisitemu, iyo hongewemo ifu ya latex isubirwamo, polymer emulion yakozwe nyuma yo kongera gutatanya irashobora guhurira muri a firime mu cyuho cyuzuye, funga icyuho muri sisitemu ya putty, hanyuma ukore igipfundikizo hamwe nogusiba kugirango ukore firime yuzuye hejuru nyuma yo gukama, bityo bikarinda neza kwinjira mumazi, kugabanya ubwinshi bwamazi, kugirango byongere imbaraga kurwanya amazi.Iyo igipimo cyifu ya latex igeze kuri 4%, ifu ya redispersible latex na polymer emulsion ya redispersible irashobora ahanini kuzuza icyuho muri sisitemu ya putty burundu kandi igakora firime yuzuye kandi yuzuye, bityo, imyumvire yo kugabanuka kwamazi yinjira mumazi. ihinduka neza hamwe no kwiyongera kwifu ya latex.
Mugereranije amashusho ya SEM ya putty yakozwe mugushyiramo ifu ya latx idasubirwaho cyangwa idahari, urashobora kubona ko mugishushanyo cya 3 (a), ibikoresho bidafite umubiri bidahujwe neza, hariho ubusa bwinshi, kandi nubusa ntibigabanijwe neza, kubwibyo, imbaraga zubusabane bwazo ntabwo ari nziza.Umubare munini wubusa muri sisitemu utuma amazi yoroshye kwinjira, bityo igipimo cyo kwinjiza amazi kiri hejuru.Igishushanyo cya 3 (b), polymer ya emulsiyo nyuma yo kongera gutatanya irashobora kuzuza cyane cyane icyuho kiri muri sisitemu ya putty hanyuma igakora firime yuzuye, kugirango ibikoresho bidahinduka muri sisitemu yose ya putty bishobora guhuzwa neza, kandi mubyukuri sibyo. gira icyuho, birashobora rero kugabanya kwinjiza amazi.Urebye ingaruka za poro ya latex ku mbaraga zo guhuza no kurwanya amazi ya putty, kandi urebye igiciro cyifu ya latex, 3% ~ 4% yifu ya latex irakwiriye.Umwanzuro wongeyeho ifu ya latx irashobora kunoza imbaraga zo guhuza putty.Iyo igipimo cyacyo ari 3% ~ 4%, putty ifite imbaraga zo guhuza hamwe no kurwanya amazi meza
Igihe cyoherejwe: Nyakanga-19-2023