Gucapa
Gucapa ibyimbye nimwe mubikoreshwa cyane mubyuma byo gucapa.Mu gucapa, ibikoresho bibiri byingenzi byakoreshejwe ni kole hamwe na paste y'ibara.Kandi kubera ko ubudahwema buzagabanuka munsi yimbaraga zo kogosha cyane, umubyimba ukoreshwa kugirango wongere ibikoresho byo gucapa, kandi gucapa ibyuma birakenewe muriki gihe.
Igikorwa nyamukuru cyo gucapa umubyimba ni ugutanga imiterere myiza ya rheologiya, kwimura kole cyangwa ibara ryamabara kuri ecran yo gucapura no gucapisha imashini kumyenda, kugirango irangi na fibre bihurizwe hamwe kugirango hamenyekane neza uburyo bwo gucapa neza.Igishushanyo kirasobanutse kandi ibara rirasa kandi ni kimwe;iyo irangi ryakosowe, ibicuruzwa bya reaction nibisigara bikurwaho byoroshye mugikorwa cyo hasi, bigatuma umwenda wumva woroshye.Ibi birerekana ko gucapa ibyuma bigira uruhare runini mubikorwa byo gucapa.
Gukwirakwiza icapiro ryimyororokere ni ihuza-ihuza polymer igizwe na emuliyoni.Nyuma yo kuyungurura no kutabogama hamwe namazi, ibice bya polymer bishingiye kumazi bizaguka vuba.Muri iki gihe, ibicuruzwa byacapwe bizasobanuka neza kandi bifatanye.Gukwirakwiza icapiro ryimyororokere irashobora kongera neza ubwiza buke bwimyenda ya sisitemu yo gucapa kandi bigatuma sisitemu yo gucapa igira pseudoplastique.Irangi ryirangi ryateguwe hamwe no gukwirakwiza icapiro ryinshi nkuko umubyimba nyamukuru ufite umusaruro mwinshi hamwe nuburyo bwa gel.Iyi miterere ntabwo igaragara kugeza igihe imbaraga zo gukata zabuze.Kubwibyo, gusohora icapiro ryimyororokere irakwiriye mugutegura icapiro hamwe ningero eshatu zingana.
Gucapa ibyimbye bifite amateka maremare yiterambere.Ingano yakoreshejwe kera cyane yari krahisi cyangwa yahinduwe.Ubu bwoko bwo kubyimba bwitwa umubyimba usanzwe, ariko ubu bwoko bwo gucapa ibyimbye bufite igiciro kinini, uburebure bwamabara make, kutagaragara neza, gukaraba nabi, hamwe nimyenda idashimishije.Kugeza ubu, ubu bwoko bwo kubyibuha bwakuweho.Mu myaka ya za 1950 ni bwo abantu batangije ifaranga ry’igihugu, ryatumaga ikoranabuhanga ryo gucapa rikoreshwa cyane.Ukoresheje kerosene namazi nkibikoresho fatizo, ihura na emulisiyasi yihuse ikorwa na emulisiferi kugirango ikore leta yihuta.Kuberako umubyimba urimo kerosene iri hejuru ya 50 # kandi ubwinshi ni bwinshi, bizatera umwanda mwinshi mwikirere kandi bifite ibyago byo guturika.Mubyongeyeho, guhuzagurika kwa paste ntago byoroshye guhinduka, kandi impumuro ya kerosene izaguma kumyenda nyuma yo gucapa.Abantu rero ntibaranyurwa niyi icapiro.Mu myaka ya za 70, abantu batangiye kwiteza imbere no kubyara intungamubiri.Kugaragara kwimyororokere yububiko byateje imbere cyane iterambere ryumusaruro wicapiro kandi bizamura tekinoroji yo gucapa kurwego rushya.Ikemura ibibazo byangiza ibidukikije nibibazo byumutekano.Byongeye kandi, umubyimba wubukorikori ufite ibyiza byo kubyibuha neza, gutwara no kubika byoroshye, gutegura byoroshye, urucacagu rusobanutse, ibara ryiza nibindi bisa.
Turi Gutatanya Icapiro rya Thickener.Niba ushimishijwe nibicuruzwa byacu, nyamuneka twandikire.
Igihe cyo kohereza: Gashyantare-08-2021