Ingaruka yifu ya latexr kumiterere yibikoresho bishingiye kuri sima

Ifu ya redispersible latex irashobora kunoza imiterere ya minisiteri nkimbaraga zoroheje nimbaraga zifatika, kuko irashobora gukora firime ya polymer hejuru yubutaka bwa minisiteri. Hano hari imyenge hejuru ya firime, kandi hejuru ya pore huzuyemo minisiteri, bigabanya guhangayika. Kandi munsi yibikorwa byimbaraga zo hanze, bizabyara kuruhuka bitavunitse. Byongeye kandi, minisiteri ikora skeleti ikomeye nyuma ya sima iyobowe, na polymer muri skeleton ifite imikorere yingingo yimukanwa, isa nuduce twumubiri wumuntu. Ibibyimba byakozwe na polymer birashobora kugereranywa ningingo hamwe na ligaments, kugirango tumenye neza kandi byoroshye skeleton ikomeye. gukomera.

Muri polymer-yahinduwe na sima ya minisiteri, firime ikomeza kandi yuzuye ya polymer ihujwe na sima paste hamwe nuduce twumucanga, bituma minisiteri yose iba nziza kandi yuzuye, kandi icyarimwe bigatuma umuyoboro wose wa elastike wuzuza capillaries na cavites. Kubwibyo, firime ya polymer irashobora kwanduza neza umuvuduko nuburemere bworoshye. Filime ya polymer irashobora gukuraho ibice byo kugabanuka kumurongo wa polymer-mortar, gukiza ibice byo kugabanuka, no kunoza kashe hamwe nubufatanye bwa minisiteri. Kubaho kwa polymer byoroshye kandi byoroshye cyane bya polymer byongera ubworoherane nubworoherane bwa minisiteri, bigatanga ubumwe hamwe nimyitwarire yingirakamaro kuri skeleton ikomeye. Iyo imbaraga zo hanze zashyizwe mu bikorwa, inzira yo gukwirakwiza microcrack iratinda bitewe nubworoherane bworoshye kandi bworoshye kugeza igihe impagarara nyinshi zigeze. Imiyoboro ya polymer ihuriweho nayo ikora nkimbogamizi yo guhuriza hamwe kwa microcrack mu gucamo ibice. Kubwibyo, isubiranamo rya polymer ifu itezimbere kunanirwa no kunanirwa kwibikoresho.

Ongeramo ifu ya latex kuri sima ya sima bizakora firime ya polymer yoroheje kandi yoroheje, bizamura imikorere yimikorere ya minisiteri, cyane cyane imbaraga za minisiteri zizatera imbere cyane. Iyo imbaraga zo hanze zashyizwe mu bikorwa, bitewe no kunoza ubumwe rusange bwa minisiteri hamwe na elastique yoroshye ya polymer, ibibaho bya micro-crack bizacika cyangwa bitinde. Binyuze mu ngaruka za porojeri ya latexr ku mbaraga za minisiteri yubushyuhe bwumuriro, usanga imbaraga zingirakamaro zingirakamaro za minisiteri yumuriro wiyongera hamwe no kwiyongera kwifu ya latx; imbaraga za flexural nimbaraga zo guhonyora bifite urwego runaka hamwe no kwiyongera kwifu ya latex. Urwego rwo kugabanuka, ariko iracyuzuza ibisabwa kurukuta rwo hanze rurangiza.

Isima ya sima ivanze nifu ya latex, imbaraga zayo za 28d ziyongera hamwe no kwiyongera kwifu ya latex. Hiyongereyeho ifu ya latx ya latx, ubushobozi bwo guhuza sima ya sima hamwe nubutaka bwa sima ishaje biratera imbere, ibyo bikaba byemeza ibyiza byayo byo gusana kaburimbo ya sima nizindi nyubako. Byongeye kandi, igipimo cyikubye cya minisiteri cyiyongera hamwe no kwiyongera kwifu ya latx, kandi guhinduka kwa minisiteri yubutaka biratera imbere. Muri icyo gihe, byagaragaye kandi ko hamwe no kwiyongera kwifu yifu ya latex, modulus ya elastike ya minisiteri yagabanutse mbere hanyuma yiyongera. Muri rusange, hamwe no kwiyongera kw'ikigereranyo cyo gukusanya ivu, modulus ya elastike na moderi ya moderi ya minisiteri iri munsi yubwa minisiteri isanzwe.