Styrene monomer (SM, CAS 100-42-5)yog cov kua tsis muaj xim, tsis muaj kuab lom nrog cov ntxhiab tsw qab. Nws yog me ntsis soluble hauv dej tab sis sib tov zoo nrog cov kuab tshuaj organic. Chemically, nws muaj ib tug molecular mis ntawm C₈H₈, featuring ib lub nplhaib benzene txuas rau ib pawg ethylene. Cov qauv no muab nws lub peev xwm los ua polymerize, tsim polystyrene, dav - siv yas. Nrog rau qhov kub ntawm 145 degree, styrene tau yooj yim evaporates ntawm chav tsev kub, tso pa tawm mus rau saum huab cua.
Puas yog styrene yog ib yam khoom phom sij?
Yog lawm, styrene yog suav tias yog kev phom sij.Yuav tsum tau saib xyuas thaum siv nws hauv qhov chaw tsim khoom, vim nws ua rau muaj kev phom sij rau kev noj qab haus huv hauv qab no:
- Kev khaus khaus:Irritating rau qhov muag, tawv nqaij, thiab ua pa ib ntsuj av.
- Neurotoxicity:Lub sij hawm ntev raug rau siab concentrations ntawm styrene yuav ua rau mob taub hau, qaug zog, los yog txo concentration.
- Muaj peev xwm carcinogenicity:Lub Koom Haum Saib Xyuas Kev Noj Qab Haus Huv Ntiaj Teb (IARC) tau teev nws tias yog "cov khoom siv uas yuav ua rau mob qog noj ntshav rau tib neeg (Pab 2B)".
Thaum siv lossis khaws cia styrene monomer, koj yuav tsum xyuas kom muaj qhov cua kom zoo, hnav cov cuab yeej tiv thaiv tus kheej, thiab ua raws li cov cai.
Dab tsi yog qhov txwv kev nyab xeeb rau styrene?
Cov koom haum tswj hwm tau teeb tsa kev txwv kev nyab xeeb los tiv thaiv tib neeg kev noj qab haus huv. Hauv qhov chaw ua haujlwm, piv txwv li, Kev Tswj Xyuas Kev Nyab Xeeb thiab Kev Noj Qab Haus Huv (OSHA) hauv Tebchaws Meskas tau teeb tsa qhov kev tso cai raug txwv (PEL) ntawm 100 feem ntawm ib lab (ppm) raws li 8 - teev sijhawm - qhov hnyav nruab nrab. Lub koom haum National rau Kev Nyab Xeeb Kev Nyab Xeeb thiab Kev Noj Qab Haus Huv (NIOSH) pom zoo kom txo qis qis ntawm 50 ppm rau ib hnub ua haujlwm 10 - teev, 40 - teev ua haujlwm lub lim tiam kom txo qis kev pheej hmoo ntawm kev noj qab haus huv. Cov kev txwv no pab xyuas kom cov neeg ua haujlwm thiab cov tib neeg tsis raug rau cov qib txaus ntshai ntawm styrene.
Kev siv ntawm Styrene Monomer
SM yog cov khoom tseem ceeb hauv ntau qhov kev lag luam. Nws yog tsuas yog siv los tsim polystyrene rau cov khoom xws li cov khob pov tseg, ntim cov ntaub ntawv, thiab rwb thaiv tsev foams. Nws tseem yog ib qho tseem ceeb hauv kev tsim khoom ntawm ABS (acrylonitrile -) butadiene - styrene) yas, uas yog siv rau hauv cov khoom siv tsheb, hluav taws xob, thiab cov khoom ua si vim nws lub zog thiab ruaj khov. Tsis tas li ntawd, styrene yog siv los tsim cov khoom siv hluavtaws thiab qee hom txheej txheej.
Peb xa tawm Styrene monomer tag nrho lub xyoo puag ncig, tuaj yeem xyuas kom meej tias cov khoom lag luam zoo lav rau cov neeg siv khoom.Peb muab Commerical Invoice, Packing List, Bill of loading, COA.Koj puas txaus siab rau cov khoom no? Thov xa cov lus nug, thiab peb yuav tiv tauj koj hauv 24 teev ua haujlwm los tham txog koj cov kev xav tau.
Tiv tauj peb rau ib qho kev tsocai
Vim li cas thiaj xaiv Gneebio?
Gneebio yog tus kws tshaj lij cov khoom siv raw khoom tsim khoom lag luam thiab xa tawm thoob ntiaj teb. Peb lub tuam txhab nyob hauv Henan Xeev, Suav. Peb muaj ntau lub koom haum koom tes tshuaj tshuaj nyob rau hauv Henan, npog thaj tsam ntawm 3,600 square metres, muab cov neeg siv khoom nrog ib qho - nres cov kev pabcuam tshuaj, suav nrog kev sib xyaw, rov ntim dua, khaws cia, thiab xa tawm.
Peb cov khoom kub- muag khoom muaj xws li cov tshuaj tsw qab hydrocarbons (Naphtha (petroleum), Benzene, Toluene, o-Xylene, Styrene, Cyclohexane, Cyclohexanone, Epsilon-Caprolactam, 2-Anilinoethanol (Elchol, thiab lwm yam), 2-Methyl-1-Propanol, Ethyl Cawv, thiab lwm yam), phenols thiab ketones (Phenol, Propafenone, Bisphenol A, Phenyl Methacrylate, Methyl Isobutyl Ketone, Phenolic Resin, thiab lwm yam), thiab petrochemicals.Peb vam tias yuav tsim kom muaj kev sib koom tes zoo tshaj plaws rau cov khoom lag luam thiab kev sib koom tes yav tom ntej. cov neeg siv khoom.
Qhov zoo
1). Cov khoom xa tuaj me me thiab sub- ntim yog muaj.
2). Muab COA, MSDS, Daim Ntawv Pov Thawj Kev Noj Qab Haus Huv thiab Daim Ntawv Pov Thawj Keeb Kwm.
3). Ua ntej, kev pabcuam zoo tshaj plaws.
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