Global - Premier TDI: Ing Indispensable Building Block keng Polyurethane Industry
Pisikal at Kemikal a Katangian
Itsura at bau: Ing TDI keraklan magpresenta yang alang kule a transparent o bagya dilaw, at mabilis a masilab a likidu. Magluwal yang mabangis, masikan, at makabukud a bau, a magsilbing maulagang sensory indicator ning kayang presensya.
Solubility and Reactivity: Malyari yang isamut kareng miyayaliwang organic solvents antimo ing ethanol (a maki decomposition), diethylene glycol monoethyl ether, diethyl ether, acetone, carbon tetrachloride, benzene, chlorobenzene, kerosene, ampo olive oil. Metung kareng kayang katangian a chemical yapin ing kayang reactivity keng danum, metung a reaction na maggenerate carbon dioxide gas. Dagdag pa, ing TDI mabilis yang magreact kareng compound a maki aktibung hydrogen atoms, metung a pibandyan a magagamit kareng dakal a prosesung pang-industriya.
Key Physical Constants: Ing TDI atin yang boiling point a 247°C, na magdetermina keng temperatura nung nukarin ya magbayu ibat keng likidu papunta keng gaseous a kabilian lalam ning normal a pressure ning atmospera. Ing melting point na manibat 19.5 anggang 21.5°C, papakit na ing temperatura nung nukarin ya maging matibe. Ing flash point ning TDI 127°C ya, buri ng sabyan na keng temperatura ayni, malyari yang magproduce flammable vapors nung atin yang ignition source. Atin yang relatibung densidad a 1.217, mas siksik ya kesa keng danum, na atin yang implikasyon keng pamaniakup ampo pamikawani da keng industrial ampo environmental a kontekstu.
Application Areas
Polyurethane Foam Production: Ing TDI ing pundasyun ning pamaglalang kareng polyurethane foams, na maralas dang gagamitan kareng dakal a industriya. keng furniture sector, ing malambut a polyurethane foams a gawa keng TDI ila reng materyales a pilinan para gawan ing manyaman ampo suportadung unan kareng sofa, armchairs, ampo kutson. keng industriya ning saken, deng foams a reni magagamit la kareng luklukan ning saken, mamye lang manyaman ampo kaligtasan kapamilatan ning pamagsipsip kareng shocks kabang magmaneho la. Dagdag pa, ing TDI - based polyurethane foams magagamit ya keng insulation applications, antimo reng refrigerator ampo kareng gusali insulation materials, pauli ning karelang masanting a thermal insulation properties.
Coatings and Adhesives: Ing TDI atin yang maragul a papil keng pamaglalang kareng matas a performance a coatings ampo adhesives. keng industriya ning coatings, TDI - based polyurethanes ing gagamitan da para gawang matibe, scratch - resistant, ampo chemically resistant a coatings para kareng miyayaliwang substrate, kayabe nala reng metal, plastic, ampo dutung. Deng coatings a reni magagamit la keng automotive finishes, floor coatings, ampo industrial equipment coatings. keng palengki da reng adhesives, TDI - a maki adhesives ila reng maulaga para keng karelang masikan a bonding capabilities. Magagamit la reti king pamitipun kareng kasangkapan, king pamisanmetung da reng sangkap ning saken, at king industria ning konstruksyun para king pamisanmetung da reng miyayaliwang materyales king pamaglalang.
Elastomer Manufacturing: Ing TDI magagamit ya para gawang polyurethane elastomers, na pisamut da reng katangian ning goma ampo plastic. Deng elastomer a reni atin lang aplikasyun kareng dakal a bage, antimo ing pamaglalang kareng soles ning sapatus, nung nukarin mamye lang masanting a flexibility, durability, ampo shock absorption. Magagamit la murin king pamangawang industrial a seal ampong gasket, nung nu ing karelang resistensya kareng kemikal, abrasion, ampong matas a temperatura gagawan na lang masanting a gamitan kareng mabagsik a kapaligiran.
Paralan ning Pamagsadya
Tradisyunal a Dalan ning Phosgenation
2,4 - Amino Toluene Route: Ing prosesu magumpisa ya keng pamagtunaw ning 2,4 - amino toluene ampo ing pamaglaso na keng chlorobenzene. Ing solusyun ayni mireact ya keng phosgene keng adwang lakbang a prosesu. Mumuna, ing mababang temperatura a reaksyun malilyari ya kilub ning temperatura a 35 - 45°C. Kaybat, ing matas a temperatura a reaksyun malilyari ya keng temperaturang lalam ning 130°C. Kaybat dang meyari deng reaksyun, ing nitrogen gas mipalub ya para i-expel ing nanu mang e me-react a hydrogen chloride ampo ing sobrang phosgene. Ing chlorobenzene midistill ya, at ing tauling lakbang yapin ing vacuum distillation para mika purong TDI.
Nitro Toluene Route: Kening paralan ayni, ing nitro toluene mumuna yang nitrated at kaybat mabawas ya para mika 2,4 - diaminotoluene. Ing intermediate ayni mipailalam ya keng phosgenation, nung nukarin ya magreact keng phosgene para maging TDI. Ing reaction mixture kanita miprosesu ya para mikakawani at malinis ing TDI product.
Deng Alternatibong Paralan
Non - Phosgene Routes: kareng milabas a banua, mika daragul a pokus keng pamaglalang non-phosgene a paralan para makagawa TDI para mabawas ing epekto keng kapaligiran a makasuglung keng pamangamit phosgene. Alimbawa, deng mapilan a pamanyaliksik mag explore la keng pamangamit kareng alternatibong reagents ampo reaction conditions para gawan ing TDI a alang kailangan a phosgene. Makanyan man, deng paralan a reni atyu la pa keng yugtung panyulung at e la pa miras keng malawak a pamangamit keng komersyu.
Ingatan
Peligro keng Kalusugan: Ing TDI vapor magdalang maragul a panganib keng kalusugan ning tau. makairita ya keng mata, balat, ampo keng dalan ning pamangisnawa. Ing makabang panaun o paulit-ulit a pamaglaso malyari yang magdalang grabing problema keng kalusugan, kayabe na ing problema keng pamangisnawa antimo ing bronchitis, asthma - kalupa da reng sintomas, ampo kareng mapilan a kasu, mas grabi pang kundisyun antimo ing bronchiectasis ampo pulmonary heart disease. Alimbawa, deng daga a mipalabas kareng konsentrasyun a atyu king range ning (0.5 - 1)×10−6 kilub ning 6 oras aldo-aldo, kilub ning 5 - 10 aldo, meyakit lang succumb kareng toxic a epektu. kareng tau, ing pamangisnawa keng 0.0005mg/L malyari yang mag trigger keng matinding ubo ampo kakulangan ning pangisnawa.
Peligro ning pangasilab at pangasabog: Ing TDI metung yang likidu a malyaring masilab, at deng kayang singaw malyari lang gawang makasabog a timpla king angin. Nung mipapalwal ya keng makabuklat a lablab, kislap, o matas a pali, atin yang maragul a panganib ing pangasilab ampo pangasabog. Uli na niti, ing masaleseng pamag-imbak at pamag-asikasu kailangan ya para aiwasan ing makanining panganib.
Pamag-imbak at Pamag-asikasu: Ing TDI dapat yang i-store keng malambut, masanting a bentilasyon a bodega na marayu keng aslag ning aldo, panibatan ning pali, ampo panibatan ning ignition. Deng lulanan a pipagtipunan dapat masipit lang makasara para aiwasan ing pamagtagas ning singaw. Uling keng kayang reactivity keng danum ampo kareng aliwang sangkap, dapat yang i-store makabukud kareng materyales na malyaring mag-react kaya, antimo reng oxidizing agents. Kabang mag-handle, dapat isulud ing ustung personal protective equipment, kayabe na ing chemical - resistant gloves, safety goggles, ampo respiratory protection, para mabawas ing panganib ning panga-exposure.
Detalyadu
| lagyu ning produktu | Toluene Diisocyanate | |||||||||
| Chemical Formula | C9H6N2O2 | |||||||||
| Timbang Molecular | 174.16 g/mol | |||||||||
| It sira | alang kule anggang dilaw a transparent a likidu | |||||||||
| Melting Point | 19.5–21.5°C | |||||||||
| Boiling Point | 247°C | |||||||||
| Bayat | 1.22 g/cm3 | |||||||||
| CAS NO | 584-84-9 | |||||||||
| HS Code | 29291010 | |||||||||
| EINECS NO | 209-544-5 | |||||||||
| Aplikasyon | Gagamitan ya para kareng polyurethane foams, elastomers, coatings, adhesives. | |||||||||
Quality Control Sheet
| lagyu ning produktu | Toluene Diisocyanate | ||||||
| PARAMETERS | KAPITPARIS | Resulta ning Pamanyubuk | |||||
| Ing laman ning Toluene Diisocyanate%≧ | 99.5 | 99.96 | |||||
| Isomer Ratio(2,4/2,6) | 80.0/20.0±1 | 79.4/20.6 | |||||
| Hydrolysis chlorine% ≤ | 0.01 | 0.0032 | |||||
| Acidity(as HCL)% ≤ | 0.004 | 0.0005 | |||||
| Chroma(Hazen) ≤ | 25 | 10 | |||||