Magnesium Oxide Loo Isticmaalo Warshadaha Rabadhka

Magnesium Oxides (MgOs)waxaa laga faa'iidaysanayay Warshadaha Rubberka in ka badan 100 sano.Wax yar ka dib markii la helay vulcanization sulfur 1839, MgO iyo oksaydhyada kale ee aan noolayn waxay caddeeyeen inay dardar galiyaan heerka daawaynta gaabis ah ee baaruudda loo isticmaalo kaligaa.Waxay ahayd ilaa horraantii 1900-meeyadii markii dardar-geliyayaasha organic la sameeyay oo lagu beddelay magnesium iyo oksaydhiyeyaasha kale sida dardar-geliyayaasha aasaasiga ah ee hababka daaweynta.Isticmaalka MgO ayaa hoos u dhacay ilaa horraantii 1930-meeyadii intii lagu jiray dhalmada elastomer-ka cusub ee loo yaqaan 'synthetic elastomer' kaas oo si weyn u isticmaalay oksaydhkan si uu u dejiyo oo uu uga takhaluso (qashin-acid) isku-darka-polychloroprene (CR).Xitaa hadda, bilawga qarniga soo socda, isticmaalka aasaasiga ah ee MgO ee warshadaha caagga ah ayaa weli ku jira hababka daaweynta polychloroprene (CR).Sannadihii la soo dhaafay, isku-xidhayayaashu waxay xaqiiqsadeen faa'iidooyinka MgO ee elastomeryada kale sida: chlorosulfonated polyetylen (CSM), fluoroelastomer (FKM), halobutyl (CIIR, BIIR), hydrogenated NBR (HNBR), polyepichlorohydrin (ECO) iyo kuwo kale.Aan marka hore eegno sidadarajada caag MgOswaa la soo saaraa iyo hantidooda.

Horaantii wershadaha cinjirka hal nooc oo MgO ah ayaa la heli karaa-culus (cufnaantiisa badan awgeed).Noocaan waxaa soo saaray kuleyl ahaan baaluqsanMagnesites dabiiciga ah(MgCO2).Darajada natiijadu inta badan waxay ahayd nijaas, ma ahayn mid aad u firfircoon waxayna lahayd xajmi weyn.Iyadoo horumarinta CR, saarayaasha magnesia soo saaray cusub, daahirsanaan sare, ka firfircoon, size qayb ka yar MgO-iftiin dheeraad ah.Alaabtan waxa lagu sameeyay kaarboonaydh-magnesium carbonate (MgCO3).Ilaa maanta loo isticmaalo dawooyinka iyo waxyaalaha la isku qurxiyo, MgO-gan waxa lagu beddelay mid aad u firfircoon, cabbir yar oo MgO-light ah ama iftiin farsamo.Ku dhawaad ​​dhammaan isku xidhayaasha caagga ah ayaa isticmaala noocaan MgO.Waxaa lagu soo saaray iyadoo kulayl ahaan u burburisa guryaha magnesium 2 nooc: sii socotahydroxide (Mg(OH)2).Cufnaanteeda bulk waxay u dhaxaysaa mid culus iyo iftiin dheeraad ah waxayna leedahay hawl aad u sareysa iyo cabbirka walxaha yar.Labadan guri ee dambe-waxqabadka iyo cabbirka walxaha-waa sifooyinka ugu muhiimsan ee MgO kasta oo lagu isticmaalo isku-darka caagga.