Magaca Alaabta：Styrene

Qaab molecular:C8H8

CAS Maya:100-42-5

Qaab dhismeedka molecular Product：

Faahfaahin:

Guryaha Kiimikada:

Styrene waa dareere heerkulka qolka, aan midab lahayn, oo leh ur qafiif ah, styrene waa guban, barta karkarinta 145.2 darajo Celsius, barta qaboojinta -30.6 darajo Celsius, cufnaanta gaarka ah 0.906, styrene waa mid aan lagu milmi karin biyaha, haddii 25 darajo Celsius, styrene Solubility waa kaliya 0.066%. Styrene waxaa lagu qasi karaa ether, ferment methyl, carbon disulfide, acetone, benzene, toluene iyo tetra-ironic kaarboon saami kasta. Styrene waa dareere wanaagsan oo loogu talagalay caagga dabiiciga ah, caagga synthetic iyo xeryahooda organic badan. Styrene waa sun waxayna keeni kartaa sun haddii jidhka bini'aadamka uu nuugo uumiga styrene aad u badan. Xaddiga la ogol yahay ee styrene ee hawada waa 0.1mg/L. Uumiga Styrene iyo hawadu waxay samayn doonaan isku dhafka qarxa.

Codsiga:

Styrene waa monomer muhiim ah oo ka samaysan caag synthetic, xabagta iyo balaastikada. [3,4,5] Waxaa loo isticmaalaa isku-dhafka styrene butadiene caagga ah iyo resin polystyrene, fiber galaas polyester xoojiyeen balaastiigyada iyo dahaarka. Waxaa loo isticmaalaa diyaarinta polystyrene, xabagta sarrifka ion, iyo polystyrene xumbo. Waxa kale oo loo istcimaalay isku-duubnida monomers kale si loo soo saaro balaastikada injineeriyada kala duwan, sida copolymerization of acrylonitrile iyo butadiene si loo soo saaro resin ABS, oo si balaadhan looga isticmaalo qalabka guryaha iyo warshadaha kala duwan. Copolymerization with acrylonitrile, helay SAN waa resin leh iska caabin naxdin leh iyo midab dhalaalaya. SBS-da ay soo saartay copolymerization with butadiene waa caag heerkulbeeg ah, kaas oo si weyn loogu isticmaalo sidii chloride polyvinyl iyo acrylic modifier. SBS iyo SIS thermoplastic elastomers waxaa lagu sameeyay butadiene iyo isoprene copolymerization, iyo monomer-ka isdhaafsan, styrene waxaa loo isticmaalaa wax ka beddelka PVC, polypropylene, iyo polyester aan saturated ahayn.
Syrene waxaa loo isticmaalaa sidii monomer adag soo saarista emulsion styrene acrylic iyo xabagta xasaasiga ah ee cadaadiska dareeraha. Xabagta Emulsion iyo rinjiga waxaa lagu diyaarin karaa koobiyeerka oo leh vinyl acetate iyo acrylic ester. Styrene waa mid ka mid ah monomers-ka vinyl-ka inta badan loo isticmaalo goobta sayniska, oo loo isticmaalo agabyo kala duwan oo wax laga beddelay iyo kuwo isku dhafan.[6]
Intaa waxaa dheer, qadar yar oo styrene ah ayaa sidoo kale loo isticmaalaa sida cadar iyo dhexdhexaadin kale. Marka loo eego chloromethylation of styrene, chloride cinnamyl waxaa loo isticmaalaa dhexdhexaad si loo go'aamiyo xanuunka suuxdinta aan suuxdinta lahayn, iyo styrene sidoo kale waxaa loo isticmaalaa daawada asalka ah ee antitussive, expectorant iyo anticholinergic ee isbedelka caloosha. Waxaa loo isticmaali karaa in lagu sameeyo dhexdhexaadiyeyaasha dheeha anthraquinones, emulsifiers-ka sunta cayayaanka, iyo styrene phosphonic acids ore dhaymada iyo dhalaaliyeyaasha naxaasta ah.