Styrene (CAS 100-42-5), feem ntau hu ua vinylbenzene lossis styrene monomer (SM), yog ib qho ntshiab, tsis muaj xim tsis muaj ntxhiab hydrocarbon. Distinguished los ntawm nws cov khoom zoo heev polymerization thiab txhim khu kev qha tshuaj stability, styrene monomer tau dhau los ua ib qho tseem ceeb ntawm cov khoom siv raw hauv ntau qhov chaw, suav nrog kev ua cov yas, kev tsim tsheb, khoom ntim khoom, thiab kev tsim kho engineering.
Styrene (CAS 100-42-5) yog dab tsi?
CAS Tsis Yog. 100-42-5 Styrene, tseem hu ua vinylbenzene, phenylethylene, los yog styrene monomer (SM), yog ib qho aromatic unsaturated hydrocarbon nrog cov mis molecular C₈H₈ thiab ib pawg yas txuas rau lub nplhaib benzene. Nws yog ib qho ntshiab, tsis muaj xim rau me ntsis daj oily kua nyob rau hauv chav tsev kub nrog ib tug yam ntxwv qab zib aromatic tsw.
Nws yog ib qho tseem ceeb tshaj plaws hauv kev lag luam monomers, feem ntau yog siv los ua cov khoom siv tseem ceeb rau kev tsim cov polystyrene (PS), acrylonitrile-butadiene-styrene (ABS) resins, styrene-butadiene roj hmab (SBR), thiab ntau yam copolymer siv dav hauv cov khoom ntim khoom, cov khoom siv hluav taws xob, cov khoom siv hluav taws xob. reactivity thiab mechanical kev ua tau zoo.
Lwm lub npe rau styrene (CAS 100-42-5) yog dab tsi?
Styrene yog paub los ntawm ntau yam tshuaj, systematic, thiab kev lag luam npe nyob ntawm kev lag luam thiab daim ntawv thov:
- Styrene Monomer (SM) - feem ntau siv lub npe lag luam
- Vinylbenzene - systematic tshuaj npe
- Ethenylbenzene – IUPAC{0}}npe muaj feem xyuam
- Phenylethylene - ib txwm tshuaj npe
- Styrol - keeb kwm thiab European lag luam npe
- Cinnamene - cov ntaub ntawv keeb kwm qub qub
- Ntawm cov no, "Styrene Monomer" (SM) yog qhov siv dav tshaj plaws hauv kev tsim khoom thiab kev lag luam tshuaj lom neeg thoob ntiaj teb.
Dab tsi yog Cov Khoom Ntawm CAS No.100-42-5?
Physical thiab Chemical Properties
Cov khoom ntawm styrene (SM) txiav txim siab nws tus cwj pwm thaum lub sijhawm khaws cia, kev thauj mus los, thiab kev lag luam polymerization txheej txheem.
| Tshuaj npe | Styrene Monomer |
| CAS Nr | 100-42-5 |
| Molecular Formula | C₈H₈ |
| Molecular Luj | 104.15 g / mol |
| Qhov tshwm sim | Colorless rau lub teeb daj pob tshab kua |
| tsw | Qab zib tsw qab |
| Qhov ntom | ~ 0.906 g / cm³ ntawm 20 degree |
| Boiling Point | ~ 145 degree |
| Melting Point | -31 degree |
| Flash Point | ~ 31℃(kaw khob) |
| Vapor Siab | Nruab nrab mus rau siab volatility ntawm chav tsev kub |
| Solubility hauv dej | Tsawg heev |
| Solubility hauv Organic Solvents | Miscible nrog feem ntau cov kuab tshuaj organic |
| Refractive Index | ~ 1.546–1.548 ntawm 20 degree |
| Kev ruaj ntseg | Yuav tsum tau inhibitors los tiv thaiv polymerization |
Styrene (CAS 100-42-5) siv rau dab tsi?
Styrene (CAS 100-42-5) yog ib qho tseem ceeb muaj monomer hauv polymer manufacturing. Nws ua hauj lwm ua tus precursor rau zus tau tej cov thermoplastics, elastomers, hluavtaws resins, thiab advanced composite cov ntaub ntawv uas yuav tsum tau los ntawm ntau yam industrial sectors.
1. Polystyrene (PS) Ntau lawm
Styrene yog cov khoom siv tseem ceeb rau polystyrene, yog ib qho ntawm cov thermoplastics siv dav hauv ntiaj teb. Los ntawm polymerization, styrene cov ntaub ntawv ntev - chains polymer cov qauv uas ua rau cov ntaub ntawv yas tsis nruj, hnav, thiab pob tshab.
Polystyrene feem ntau siv rau hauv cov khoom ntim, cov thawv ntim khoom pov tseg, cov khoom siv hauv chav kuaj, thiab cov khoom siv vim nws qhov yooj yim ntawm kev ua, tus nqi qis, thiab kev ruaj ntseg zoo. Expanded polystyrene (EPS), muab tau los ntawm styrene, kuj yog siv los ua cov khoom siv thermal rwb thaiv tsev hauv kev tsim kho thiab kev xa khoom txias.
2. Acrylonitrile-Butadiene-Styrene (ABS) Resin Manufacturing
Styrene monomer yog ib qho tseem ceeb hauv ABS resin, qhov twg nws yog copolymerized nrog acrylonitrile thiab butadiene. Nyob rau hauv cov txheej txheem no, SM muab rigidity, nto gloss, thiab yooj yim ntawm kev ua, thaum txhim kho tag nrho cov neeg kho tshuab zog thiab cuam tshuam tsis kam.
ABS cov ntaub ntawv yog dav siv nyob rau hauv automotive tha xim sab hauv, hluav taws xob vaj tse, khoom siv hauv tsev, thiab cov khoom lag luam vim lawv qhov sib npaug ntawm toughness, kub tsis kam, thiab moldability.
3. Styrene-Butadiene Rubber (SBR) Production
Hauv kev tsim cov roj hmab hluavtaws, SM / styrene monomer yog copolymerized nrog butadiene los tsim Styrene -Butadiene Rubber (SBR), yog ib qho tseem ceeb tshaj plaws - lub hom phiaj hluavtaws roj hmab.
SBR feem ntau yog siv rau hauv kev tsim cov log tsheb, cov khoom siv conveyor, cov khau khau, thiab cov khoom siv roj hmab. Cov ntsiab lus styrene nyob rau hauv lub polymer ho cuam tshuam hardness, puas kuj, thiab dov kuj ua tau zoo nyob rau hauv daim ntawv thov log tsheb.
4. Unsaturated Polyester Resins (UPR)
Nws yog dav siv raws li ib tug reactive diluent nyob rau hauv unsaturated polyester resins. Nyob rau hauv daim ntawv thov no, styrene txo cov viscosity resin thiab koom rau hauv kev sib txuas ntawm -txuas kev cuam tshuam thaum kho, tsim cov qauv thermoset nruj.
UPR cov tshuab feem ntau yog siv hauv fiberglass -cov yas siv zog (FRP), suav nrog lub nkoj hulls, lub tank cia, kav dej, vaj huam sib luag tsim kho, thiab cov khoom siv tu cev.
5. Fiberglass Reinforced Plastics (FRP)
Nyob rau hauv FRP ntau lawm, styrene kua ua raws li ob qho tib si hnyav thiab reactive monomer, ua rau lub impregnation ntawm iav fibers thiab txhawb tus ntoo khaub lig-txuas thaum kho.
FRP cov ntaub ntawv yog dav siv nyob rau hauv corrosion-cov khoom siv resistant, chemical storage tanks, automotive components, wind turbine blades, and building reinforcements. Styrene plays lub luag haujlwm tseem ceeb hauv kev ua kom muaj kev ncaj ncees, ua haujlwm ntev, thiab ua haujlwm ntev.
6. Cov khoom ntim thiab rwb thaiv tsev
Styrene-raws li polymers tau siv dav hauv kev ntim khoom thiab kev lag luam rwb thaiv tsev vim lawv cov qauv hnyav thiab cov khoom siv thermal.
Hauv daim ntawv thov ntim, styrene- cov ntaub ntawv muab tau muab kev poob siab thiab kev tiv thaiv cov khoom thaum thauj. Hauv cov txheej txheem rwb thaiv tsev, tshwj xeeb tshaj yog nthuav dav polystyrene (EPS), styrene -raws li foams yog siv rau lub tsev rwb thaiv tsev vaj huam sib luag, lub thawv thauj tub yees, thiab cov hlua txias ntim vim lawv cov thermal efficiency thiab ya raws.
7. Chemical Intermediate rau Copolymer
Tshaj li cov ntawv thov loj, styrene monomer kua kuj tseem siv los ua ib qho tseem ceeb hauv kev tsim khoom ntawm ntau yam copolymer thiab cov ntaub ntawv tshwj xeeb. Los ntawm kev kho nws cov copolymerization piv nrog cov monomers sib txawv, cov tuam ntxhab tuaj yeem tsim cov khoom siv xws li kev yooj yim, hardness, pob tshab, thiab kub tsis kam.
Styrene vs Polystyrene (Sib piv)
| Yam | Styrene (CAS 100-42-5) | Polystyrene (PS) |
|---|---|---|
| Hom tshuaj | Aromatic monomer | Thermoplastic polymer |
| Lub cev lub xeev | Ntshiab, volatile kua | Khoom yas (nruj los yog ua npuas ncauj) |
| Molecular Structure | Ib leeg vinylbenzene molecule | Ntev polymer saw tsim los ntawm styrene units |
| Tsim | Raw chemical feedstock | Ua los ntawm polymerization ntawm styrene |
| Reactivity | High reactive, yooj yim polymerized | Chemically ruaj khov, tsis tshua muaj reactivity |
| Main Function | Lub tsev thaiv (monomer) | Cov khoom siv yas tiav |
| Kev ua haujlwm | Yuav tsum tau tswj cia thiab inhibitors | Nws tuaj yeem ua molded, extruded, lossis foamed |
| Kev ruaj ntseg | Tsis ruaj tsis khov yam tsis muaj inhibitors, tuaj yeem ua tus kheej -polymerize | Nyob ruaj khov nyob rau hauv tej yam kev mob |
| Siv dav | Kev tsim khoom ntawm PS, ABS, SBR, resins | Ntim, rwb thaiv tsev (EPS), cov khoom pov tseg |
Kev nyab xeeb thiab khaws cia
Flammability: SM (Styrene Monomer) yog cov kua ua kua; Cia kom deb ntawm qhov chaw sov, qhov hluav taws xob, thiab cov nplaim taws qhib.
Qhov yuav tsum tau muaj qhov cua: Siv nyob rau hauv qhov dej - qhov cua qhov chaw kom tsis txhob muaj vapor tsub zuj zuj thiab nqus tau pa.
Kev phom sij rau kev noj qab haus huv: Nws cov vapors tuaj yeem ua rau khaus rau lub qhov muag, tawv nqaij, thiab ua pa.
Cia Lub Sijhawm: Khaws rau hauv qhov chaw txias, qhuav kom deb ntawm lub teeb, kom ntseeg tau tias lub thawv tseem kaw nruj nreem.
Kev tswj kev ruaj ntseg: Thaum lub sijhawm khaws cia, siv cov tshuaj polymerization inhibitors los tiv thaiv cov tshuaj tiv thaiv polymerization uas tsis xav tau.
Kev ceev faj txog kev tuav: Hnav cov cuab yeej tiv thaiv tus kheej tsim nyog (PPE), xws li hnab looj tes, tsom iav, thiab khaub ncaws tiv thaiv- thaum tuav.
FAQ
Q1: Puas yog Styrene Monomer soluble hauv dej?
A: Styrene yog xyaum insoluble hauv dej vim nws tsis yog -polar aromatic qauv, tab sis nws yog yooj yim soluble nyob rau hauv feem ntau organic solvents xws li cawv, ethers, thiab hydrocarbons.
Q2: Dab tsi yog qhov kub ntawm styrene?
A: Lub boiling point ntawm styrene yog kwv yees li 145℃(293℃F) ntawm atmospheric siab. Qhov ntsuas kub nruab nrab no ua rau nws qhov tsis muaj zog thaum tuav thiab yuav tsum tau tswj xyuas cov xwm txheej kom txo cov evaporation thiab xyuas kom muaj kev nyab xeeb kev lag luam.
Q3: Vim li cas styrene hu ua vinylbenzene?
A: Styrene hu ua vinylbenzene vim nws cov qauv molecular muaj ib pawg yas (–CH=CH₂) ncaj qha txuas rau lub nplhaib benzene. Cov qauv no txhais tau tias nws yog benzene derivative nrog ib tug vinyl substituent.
Q4: Vim li cas styrene tsis ruaj khov thaum khaws cia?
A: Styrene yog cov tshuaj tsis ruaj khov vim tias nws pawg vinyl tau nkag mus dawb -radical polymerization, tshwj xeeb tshaj yog nyob rau hauv tshav kub, lub teeb, los yog oxygen. Hauv kev lag luam cia, inhibitors xws li tert-butylcatechol (TBC) yog ntxiv los tiv thaiv kev tsim cov polymer tsis muaj zog thiab ua kom muaj kev nyab xeeb.
Q5: Yuav ua li cas thiaj tswj tau styrene polymerization hauv kev lag luam?
A: Hauv cov txheej txheem kev lag luam, polymerization yog tswj los ntawm kev siv cov stabilizers, tswj qhov kub thiab txias, thiab txo cov pa oxygen, cua sov, thiab peroxides.
Q6: Vim li cas styrene monomer tseem ceeb hauv polymer engineering?
A: SM yog dav siv vim nws cov qauv molecular tso cai rau copolymerization zoo, ua rau cov khoom siv nrog cov khoom zoo xws li kev nruj, kev cuam tshuam, thiab thermal stability hauv plastics thiab roj hmab systems.
Q7: Vim li cas styrene siv dav hauv kev tsim khoom?
A: CAS 100-42-5 styrene monomer yog dav siv vim nws sib txuas cov nqi qis, siab reactivity, thiab ntau yam polymerization tus cwj pwm, ua rau nws haum rau loj-scale zus tau tej cov yas, roj hmab, thiab cov ntaub ntawv sib xyaw nyob rau hauv ntau yam lag luam.
Nyem Kom Thov Ib Daim Ntawv Tso Cai
txog peb
Gneebiotau tsim nyob rau hauv 2016, yog ib tug kws tshaj lij thoob ntiaj teb cov khoom siv tshuaj raw khoom, tshwj xeeb hauv kev tsim thiab xa tawm cov tshuaj muaj xws li styrene, DMSO, ethylene glycol (MEG), p-xylene, thiab lwm yam tseem ceeb intermediates. Nrog kev tswj xyuas nruj nruj thiab cov ntawv pov thawj thoob ntiaj teb xws li REACH thiab ISO, peb tau cog lus los muab cov khoom ruaj khov, siab -purity khoom rau cov neeg siv khoom thoob ntiaj teb. Peb lub network logistics thiab warehouse system ua kom muaj kev xa khoom zoo thiab cov khoom siv txhim khu kev qha rau kev ua haujlwm ntev -lub sijhawm kev lag luam.
Ntim
| Hom pob | Net nyhav | Ntau |
|---|---|---|
| Hlau Nruas | 160 kg | 12.8 TSI |
| IBC Drum | 800 kg | 16.0 Nws |
| ISO Tank | Loj | 18.0–18.5 dr hab |
