Igama Lomkhiqizo:I-styrene

Ifomethi ye-Molecular:C8H8

Inombolo ye-CAS:100-42-5

Isakhiwo samangqamuzana omkhiqizo:

Ukucaciswa:

Chemical Properties:

I-styrene iwuketshezi ekamelweni lokushisa, ayinambala, enephunga elimnandi, i-styrene iyavutha, iphuzu elibilayo elingu-145.2 degrees Celsius, iphuzu lokuqandisa elingu-30.6 degrees Celsius, amandla adonsela phansi athile angu-0.906, i-styrene ayincibiliki emanzini, uma ku-25 degrees Celsius, i-styrene I-solubility ingu-0.066% kuphela. I-styrene ingaxutshwa ne-ether, i-methyl ferment, i-carbon disulfide, i-acetone, i-benzene, i-toluene kanye ne-tetra-ironic carbon kunoma iyiphi ingxenye. I-styrene iyi-solvent enhle yerabha yemvelo, irabha yokwenziwa kanye nezinhlanganisela eziningi zemvelo. I-styrene inobuthi, uma umzimba womuntu uhogela umhwamuko omningi we-styrene uzodala ubuthi. Ukugxila okuvunyelwe kwe-styrene emoyeni ngu-0.1mg/L. Umhwamuko we-styrene nomoya kuzokwakha ingxube eqhumayo.

Isicelo:

I-styrene iyi-monomer ebalulekile yerabha yokwenziwa, izinamathiselo namapulasitiki. [3,4,5] Isetshenziselwa ukuhlanganiswa kwerabha ye-styrene butadiene ne-polystyrene resin, i-polyester glass fiber eqinisiwe amapulasitiki kanye nezingubo. Isetshenziselwa ukulungisa i-polystyrene, i-ion exchange resin, ne-foam polystyrene. Iphinde isetshenziselwe i-copolymerization namanye ama-monomers ukukhiqiza amapulasitiki wobunjiniyela ahlukahlukene, njenge-copolymerization ye-acrylonitrile ne-butadiene ukukhiqiza i-ABS resin, esetshenziswa kabanzi ezintweni zikagesi zasendlini nezimboni ezahlukahlukene. I-Copolymerization ene-acrylonitrile, etholwe i-SAN iyinhlaka ekwazi ukumelana nokushaqeka nombala ogqamile. I-SBS ekhiqizwa yi-copolymerization nge-butadiene iyirabha ye-thermoplastic, esetshenziswa kabanzi njenge-polyvinyl chloride ne-acrylic modifier. I-SBS kanye ne-SIS thermoplastic elastomers enziwe nge-butadiene ne-isoprene copolymerization, futhi njenge-monomer exhumanisayo, i-styrene isetshenziselwa ukuguqulwa kwe-PVC, i-polypropylene, ne-polyester engasetshenzisiwe.
I-Syrene isetshenziswa njenge-monomer eqinile ekukhiqizeni i-styrene acrylic emulsion kanye ne-adhesive ebucayi yokucindezela kwe-solvent. Ukunamathela kwe-emulsion nopende kungalungiswa nge-copolymerization nge-vinyl acetate ne-acrylic ester. I-styrene ingenye yama-vinyl monomers asetshenziswa kakhulu emkhakheni wesayensi, esetshenziswa ezintweni ezihlukahlukene eziguquliwe nezihlanganisiwe.[6]
Ngaphezu kwalokho, inani elincane le-styrene libuye lisetshenziswe njengamakha kanye nezinye izinto eziphakathi. Nge-chloromethylation ye-styrene, i-cinnamyl chloride isetshenziswa njengesithako esimaphakathi sokunqunywa kobuhlungu obunamandla obungeyona i-anesthetic, futhi i-styrene iphinde isetshenziswe njengomuthi wokuqala oqeda ukuvuvukala, we-expectorant kanye ne-anticholinergic ekuguqukeni kwesisu esiswini. Ingasetshenziselwa ukuhlanganisa ama-anthraquinones odayi abaphakathi, ama-emulsifiers wezibulala-zinambuzane, kanye ne-styrene phosphonic acids ore dressing agent kanye nezikhanyisi ze-copper plating.