Emulsion na redispersible latex ifu irashobora gukora imbaraga zingirakamaro hamwe nimbaraga zo guhuza kubikoresho bitandukanye nyuma yo gukora firime, zikoreshwa nkumuhuza wa kabiri muri minisiteri kugirango uhuze na sima, sima na polymer muburyo butandukanye Gutanga gukina byuzuye imbaraga zijyanye no kunoza imikorere ya minisiteri.
Iyo witegereje microstructure yibikoresho bya polymer-cement yibikoresho, byizerwa ko kongeramo ifu ya redxersible powder ishobora gutuma polymer ikora firime kandi igahinduka igice cyurukuta rwumwobo, kandi bigatuma minisiteri iba yose hamwe binyuze mumbaraga zimbere, itezimbere imbaraga zimbere za minisiteri.Imbaraga za polymer, bityo zitezimbere kunanirwa kwa minisiteri no kongera imbaraga zanyuma.
Microstructure ya polymer muri minisiteri ntabwo yahindutse kuva kera, kandi ikomeza guhuza bihamye, imbaraga zihindagurika no kwikomeretsa, hamwe na hydrophobique nziza.Uburyo bwo gukora ifu ya redxersible latx ku mbaraga zifata tile yasanze nyuma yuko polymer yumye muri firime, firime ya polymer ikora ihuriro ryoroshye hagati ya minisiteri na tile kuruhande rumwe, kurundi ruhande, polymer muri minisiteri nshya Ongera umwuka wimyuka ya minisiteri kandi bigire ingaruka kumiterere nubushuhe bwubuso, hanyuma mugihe cyo gushiraho, polymer nayo igira ingaruka nziza mubikorwa bya hydrata no kugabanuka kwa sima muri binder, bizatanga umusanzu. ku iterambere Imbaraga zingirakamaro zifite ubufasha bwiza.
Ongeramo ifu ya redxersible latex kuri minisiteri irashobora kunoza cyane imbaraga zo guhuza nibindi bikoresho, kubera ko ifu ya hydrophilique latex hamwe nicyiciro cyamazi cyo guhagarika sima yinjira mumyenge na capillaries ya matrix, hanyuma ifu ya latx ikinjira mumyenge na capillaries. .Filime y'imbere irakozwe kandi irashimangirwa neza hejuru yubutaka, bityo bigatuma imbaraga zifatika zihuza ibikoresho bya sima na substrate.
Gutezimbere ifu ya latex kumikorere ya minisiteri biterwa nuko ifu ya latex ari polymer ndende ya polymer hamwe nitsinda rya polar.Iyo ifu ya latex ivanze nuduce twa EPS, igice kitari polarike mumurongo wingenzi wa porojeri ya latx polymer kizaba umubiri wa adsorption uzaba hamwe nubuso butari inkingi ya EPS.Amatsinda ya polar muri polymer yerekejwe hanze hejuru yubuso bwa EPS, kuburyo ibice bya EPS bihinduka kuva hydrophobicity bikagera kuri hydrophilique.Bitewe no guhindura ubuso bwa EPS ukoresheje ifu ya latex, ikemura ikibazo ko uduce twa EPS dushobora guhura namazi byoroshye.Kureremba, ikibazo cyurwego runini rwa minisiteri.Muri iki gihe, iyo sima yongewemo ikavangwa, amatsinda ya polar yamamajwe hejuru yubutaka bwa EPS akorana nuduce twa sima kandi agahuza hafi, kuburyo imikorere ya minisiteri ya EPS itera imbere cyane.Ibi bigaragarira mubyukuri ibice bya EPS bihanagurwa byoroshye na sima paste, kandi imbaraga zihuza zombi zateye imbere cyane.
Igihe cyo kohereza: Werurwe-18-2023