uyini umnikazi wepasipoti ongenamanzi | YOUCCO

2021/07/21

Emazingeni okushisa aphansi okwelapha. Ukwakhiwa kwe-Epoxy Matrix okusekelwe kuzingxenye ezine ze-diamino dididimethane (TGDDM)Diamino dibenzone (DDS)Ngakho-ke, iwumsebenzi olungiselelwe kusengaphambili wesisekelo. Ngakolunye uhlangothi, okuhlangenwe nakho kweminyaka engu-20 edlule kuveza okunye ukushiyeka i-TGDDM efana ngayo namanye ama-epoxy resins: i-viscosity, lapho izinga lokushisa likhuphuka phakathi nomjikelezo wokuphulukisa, i-viscosity iyancipha kakhulu, ngenxa yokuxhumanisa kwayo okuphezulu. ukuminyana, ukumelana nomonakalo kubi.

Ukuthunyelwa embonini ngo-1990 4. 2 million roomsAir conditioning, kude nenani eliphakeme lakamuva lama-5. Ngokusho kwenhlangano yabakhiqizi bemishini yasendlini, bekunamayunithi ayisigidi ngo-1989. Kodwa ukuthunyelwa ezinyangeni eziyisithupha zokuqala zalo nyaka-Abadayisi bayamanqika oda kabusha ngenxa yokuwohloka komnotho--Lehle ingxenye eyodwa kwezintathu, yafinyelela kuma-air-conditioner ayizigidi ezi-2.4.

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