Butadiene: Walax sixir ah oo ceeriin ah oo furaysa hal-abuurka warshadaha kala duwan

Xidigta quruxda badan ee warshadaha kiimikada, butadiene shaki la'aan waa xiddig dhalaalaya. Waa gaas aan midab lahayn oo leh ur udgoon oo yar. Sida caadiga ah, waxay dhab ahaantii ka kooban tahay tamar aad u badan oo awood u leh inay beddesho adduunka.

Butadiene waxaa loo arki karaa "geesiga ugu sarreeya" warshadaha caagga macmal ah. Kala duwan oo caag ah oo waxqabad sare leh sida caagga styrene-butadiene, caagga cis-polybutadiene, caagga nitrile-butadiene, iyo caagga chloroprene dhammaantood waxay ku tiirsan yihiin butadiene, oo ah "abuuraha" asaasiga ah. Hadday tahay iska caabbinta xirashada iyo qabashada taayirrada baabuurta ee xaaladaha waddooyinka ee adag ama ilaalinta la isku halleyn karo ee shaabaddaha caagga ah ee deegaannada aadka u daran, butadiene waxay si aamusan uga qayb qaadataa gadaasha muuqaalka.

Intaa waxaa dheer, butadiene sidoo kale si fiican ayuu ugu iftiimaa marxaladda resins-ka balaastikada ah. Iyadoo la horumarinayo warshadaha balaastikada styrene, butadiene iyo styrene waxay si wada jir ah u shaqeeyaan iyagoo adeegsanaya copolymerization, taasoo dhalisay taxane ah "alaab sixir ah" oo leh codsiyo ballaaran, sida resin ABS iyo resin SBS. Laga soo bilaabo khaanadaha adag ee alaabada elektaroonigga ah ilaa qaybaha casriga ah ee gudaha baabuurta, resins-kan waxqabadka sare leh wuxuu siiyaa alaab tayo sare leh sababtoo ah sifooyinkooda cajiibka ah.

Maadaama ay tahay walax muhiim ah oo kiimiko ceeriin ah oo aasaasi ah, "gaaritaanka" butadiene waxay sidoo kale ku fidsan tahay soo saarista kiimikooyinka muhiimka ah sida ethylidene norbornene, 1,4-butanediol, iyo adiponitrile. Alaabooyinkan waxaa loo beddelaa balaastikada injineernimada, naylon 66, iwm., kuwaas oo si weyn loogu isticmaalo meelaha sare sida hawada sare iyo wax soo saarka farsamada, taasoo noqonaysa awood muhiim ah oo horseedda horumarka warshadaha casriga ah.

Marka laga hadlayo kiimikada fiican, butadiene waxay muujinaysaa soo jiidasho gaar ah xitaa si ka sii badan. Waxyaabaha laga soo saaro anthraquinone ee ka dhasha falcelinta isku-dhafka dieneophile ee aan lahayn elektroonigga ayaa ah kuwa ugu muhiimsan ee loogu talagalay midabaynta, fungicides-ka, iyo cayayaanka. Anhydride-ka tetrahydrophthalic ee laga helo falcelinta maleic anhydride waxaa loo isticmaali karaa sidii wakiil bogsiin iyo balaastig u sameeya resins-ka polyester-ka iyo resins-ka epoxy-ga, iyadoo lagu durayo firfircooni cusub horumarinta sifooyinka maaddada.

Doorashada butadiene waxay la macno tahay doorashada hal-abuurka iyo tayada, iyo doorashada furitaanka fursadaha aan dhammaadka lahayn ee hal-abuurka warshadaha kala duwan! Aan gacmaha is qabsanno oo aan mustaqbal wanaagsan u dhisno warshadaha kiimikada iyadoo butadiene uu yahay tiirka ugu muhiimsan.