Cov khoom
styrene rau SMA
styrene rau SMA,
Styrene maleic anhydride ntau lawm raw khoom, styrene siv rau Styrene maleic anhydride,
Khoom nta
| CAS Nr | 100-42-5 : kuv |
| EINECS No. | 202-851-5 |
| HS Code | 2902.50 Nws |
| Tshuaj formula | H2C = C6H5CH |
| Chemical Properties | |
| Melting point | -30-31 C |
| Boling point | 145-146 C |
| Lub ntiajteb txawj nqus tshwj xeeb | 0.91 ib |
| Solubility hauv dej | <1% |
| Vapor ceev | 3.60 ib |
Synonyms
Cinnamene;Cinnamenol;Diarex HF 77;Ethenylbenzene;NCI-C02200; Phenethylene;Phenylethene;Phenylethylene;Phenylethylene, inhibited;Stirolo (Italian);Styreen (Dutch);Styrene (CZECH);Styrene Monomer (ACGIH);StyreneMonomer, Stabilized (DOT);Styrol (German);Styrole;Styrolene;Styron;Styropor;Vinylbenzen (CZECH);Vinylbenzene;Vinylbenzol.
Certificate of Analysis
| Khoom | Cov ntaub ntawv | Chav tsev |
| Bases | A qib ≥ 99.5%; B qib ≥ 99.0%. | - |
| Qhov tshwm sim | tsis muaj xim pob tshab oily kua | - |
| Melting point | -30.6 | ℃ |
| Boiling point | 146 | ℃ |
| txheeb ze ntom ntom | 0.91 ib | Dej = 1 |
| txheeb ze vapor density | 3.6 | Cua = 1 |
| Saturated vapor siab | 1.33 (30.8 ℃) | kPa ua |
| Kub ntawm combustion | 4376.9 ib | kJ/mol |
| Qhov ntsuas kub tseem ceeb | 369 ib | ℃ |
| Critical siab | 3.81 ib | MPa |
| Octanol / dej muab faib coefficient | 3.2 | - |
| Flash point | 34.4 ib | ℃ |
| Ignition kub | 490 ib | ℃ |
| Upper tawg txwv | 6.1 | % (V / V) |
| Tsawg qhov txwv tsis pub tawg | 1.1 | % (V / V) |
| Solubleness | Insoluble hauv dej, soluble hauv cawv thiab feem ntau cov kuab tshuaj organic. | |
| Daim ntawv thov tseem ceeb | Siv rau kev tsim polystyrene, hluavtaws roj hmab, ion pauv resin, thiab lwm yam. | |
Pob thiab xa khoom
Ntim Cov Lus Qhia:Ntim hauv 220kg / nruas, 17 600kgs / 20'GP
ISO TANK 21.5MT
1000kg / nruas, Flexibag, ISO tso tsheb hlau luam lossis raws li cov neeg siv khoom thov.
Khoom siv
Siv rau hauv kev tsim cov roj hmab, yas, thiab polymers.
a) Ntau lawm: expandable polystyrene (EPS);
b) Kev tsim cov polystyrene (HIPS) thiab GPPS;
c) Kev tsim cov styrenic co-polymers;
d) Kev tsim cov khoom siv tsis zoo polyester resins;
e) Kev tsim cov roj hmab styrene-butadiene;
f) Kev tsim cov styrene-butadiene latex;
g) Kev tsim cov styrene isoprene co-polymer;
h) Kev tsim cov styrene raws li polymeric dispersions;
i) Kev tsim cov polyols puv.Styrene feem ntau yog siv los ua monomer rau kev tsim cov polymers (xws li polystyrene, lossis qee yam roj hmab thiab latex)
Styrene maleic anhydride (SMA los yog SMAnh) yog ib qho hluavtaws polymer uas yog tsim los ntawm styrene thiab maleic anhydride monomers.Cov monomers tuaj yeem ua tau zoo sib xws, ua rau nws hloov pauv copolymer, [1] tab sis (random) copolymerisation nrog tsawg dua 50% cov ntsiab lus ntawm cov txiv neej anhydride kuj ua tau.Lub polymer yog tsim los ntawm ib tug radical polymerization, siv cov organic peroxide ua tus pib.Cov yam ntxwv tseem ceeb ntawm SMA copolymer yog nws cov pob tshab zoo li, siab kub tsis kam, siab ruaj khov, thiab qhov tshwj xeeb reactivity ntawm pawg anhydride.Cov yam ntxwv tom kawg ua rau muaj qhov solubility ntawm SMA hauv alkaline (dej-raws li) kev daws teeb meem thiab dispersion.
SMA muaj nyob rau hauv ntau yam ntawm qhov hnyav molecular thiab cov ntsiab lus ntawm txiv neej anhydride (MA).Hauv kev sib xyaw ua ke ntawm ob lub zog, SMA muaj nyob rau hauv cov khoom siv lead ua ntshiab uas tuaj yeem siv rau ntau yam kev siv.SMA polymers nrog lub siab molecular hnyav yog dav siv nyob rau hauv engineering yas daim ntaub ntawv, feem ntau nyob rau hauv tej yam hloov kho thiab xaiv iav fiber ntau variants.Xwb, SMA yog siv los siv nws cov pob tshab ua ke nrog lwm cov ntaub ntawv pob tshab xws li PMMA lossis cov cua sov ua kom sov-boost lwm cov ntaub ntawv polymers xws li ABS lossis PVC.Lub solubility ntawm SMA nyob rau hauv alkaline kev daws teeb meem ua rau nws haum rau ntau yam kev siv nyob rau hauv lub teb ntawm sizings (daim ntawv), binders, dispersants thiab coatings.Qhov tshwj xeeb reactivity ntawm SMA ua rau nws yog ib tug tsim nyog tus neeg sawv cev rau compatibilizing ib txwm incompatible polymers (xws li ABS / PA blends) los yog cross-linking.Lub iav hloov kub ntawm Styrene maleic anhydride yog 130 - 160 ° C.
