Khoom npe:Styrene

Molecular hom:C8H8

CAS Nr:100-42-5 : kuv

Cov khoom siv molecular:

Specification:

Chemical Properties:

Styrene yog cov kua nyob rau hauv chav tsev kub, tsis muaj xim, nrog ib tug pungent tsw, styrene yog flammable, boiling point 145.2 degrees Celsius, freezing point ntawm -30.6 degrees Celsius, tshwj xeeb gravity 0.906, styrene yog insoluble nyob rau hauv dej, yog hais tias nyob rau ntawm 25 degrees Celsius, styrene. solubility tsuas yog 0.066%. Styrene tuaj yeem sib xyaw nrog ether, methyl ferment, carbon disulfide, acetone, benzene, toluene thiab tetra-ironic carbon nyob rau hauv ib qho kev faib ua feem. Styrene yog cov kuab tshuaj zoo rau cov roj hmab ntuj, hluavtaws roj hmab thiab ntau cov organic tebchaw. Styrene yog tshuaj lom thiab tuaj yeem ua rau lom yog tias tib neeg lub cev nqus cov styrene vapor ntau dhau. Qhov tso cai ntawm styrene hauv huab cua yog 0.1mg / L. Styrene vapor thiab huab cua yuav tsim ib qho kev sib tov tawg.

Daim ntawv thov:

Styrene yog ib qho tseem ceeb monomer ntawm hluavtaws roj hmab, adhesives thiab plastics. [3,4,5] Nws yog siv rau kev sib txuas ntawm styrene butadiene roj hmab thiab polystyrene resin, polyester iav fiber reinforced plastics thiab coatings. Nws yog siv los npaj polystyrene, ion txauv resin, thiab ua npuas ncauj polystyrene. Nws kuj yog siv rau copolymerization nrog lwm cov monomers los tsim ntau yam engineering yas, xws li copolymerization ntawm acrylonitrile thiab butadiene los tsim ABS resin, dav siv nyob rau hauv ntau yam khoom siv hauv tsev thiab kev lag luam. Copolymerization nrog acrylonitrile, tau txais SAN yog cov khoom siv nrog kev poob siab thiab cov xim ci. SBS ua los ntawm copolymerization nrog butadiene yog cov roj hmab thermoplastic, uas yog dav siv los ua polyvinyl chloride thiab acrylic modifier. SBS thiab SIS thermoplastic elastomers yog tsim nrog butadiene thiab isoprene copolymerization, thiab raws li ib tug crosslinking monomer, styrene yog siv nyob rau hauv kev hloov ntawm PVC, polypropylene, thiab unsaturated polyester.
Syrene yog siv los ua ib qho nyuaj monomer rau kev tsim cov styrene acrylic emulsion thiab hnyav siab rhiab nplaum nplaum. Emulsion nplaum thiab xim tuaj yeem npaj los ntawm copolymerization nrog vinyl acetate thiab acrylic ester. Styrene yog ib qho ntawm feem ntau siv vinyl monomers nyob rau hauv scientific teb, siv nyob rau hauv ntau yam hloov kho thiab composite ntaub ntawv.[6]
Tsis tas li ntawd, ib qho me me ntawm styrene kuj tseem siv tau los ua cov tshuaj tsw qab thiab lwm cov khoom nruab nrab. Los ntawm chloromethylation ntawm styrene, cinnamyl chloride yog siv los ua ib qho nruab nrab rau kev txiav txim siab tsis muaj tshuaj loog, thiab styrene kuj tseem siv los ua cov tshuaj tua kab mob, expectorant thiab anticholinergic thawj cov tshuaj hauv plab Changning. Nws tuaj yeem siv los ua ke anthraquinones dye intermediates, tshuaj tua kab emulsifiers, thiab styrene phosphonic acids ore hnav khaub ncaws tus neeg saib xyuas thiab tooj liab plating brighteners.