Global - Premier TDI: Polyurethane Industry-a Building Block pawimawh tak chu a ni

Taksa leh Chemical Properties te

A lan dan leh a rim: TDI hi a tlangpuiin rawng nei lo transparent emaw, yellowish deuh, highly flammable liquid angin a lang thin. A rimtui tak, chak tak, leh a danglam bik taka thinrimna a chhuah a, chu chu a awmna hriatna hriatna pawimawh tak a ni.
Solubility leh Reactivity: 1.1. Organic solvent chi hrang hrang ethanol (a chhe tawh), diethylene glycol monoethyl ether, diethyl ether, acetone, carbon tetrachloride, benzene, chlorobanzene, kerosene, leh olive oil te nen awlsam takin a pawlh theih a ni. A chemical property langsar ber pakhat chu tui nena a reactivity a ni a, hei hian carbon dioxide gas a siam chhuak a ni. Tin, TDI hian active hydrogen atom awmna compound nen rang takin a inrem thei a, hei hi industrial process tam takah hman tangkai thin property a ni.
Taksa lama Constant pawimawh tak takte: TDI hian boiling point 247°C vel a nei a, hei hian boruak pressure pangngai hnuaia liquid atanga gaseous state-a a inthlakna temperature a hril a ni. A melting point hi 19.5 atanga 21.5°C inkar a ni a, hei hian a solidified hnuai lam temperature a tarlang a ni. TDI flash point hi 127°C a ni a, hei hian hetiang temperature-ah hian ignition source awmnaah flammable vapors a siam thei tihna a ni. Relative density 1.217 neiin tui aiin a dens zawk a, hei hian industrial leh environmental context-a a enkawl dan leh a inthen danah nghawng a nei a ni.

Dilna hmun hrang hrang

Polyurethane Foam siam chhuah dan: TDI hi polyurethane foam siamna lungphum a ni a, industry tam takah hman a ni. Furniture sector-ah chuan TDI hmanga siam polyurethane foam nem tak takte hi sofa, armchair, leh mattress-a cushion nuam leh thlawptu siamna atana hmanraw duh ber a ni. Automotive industry-ah chuan heng foam te hi car seat-ah te hman a ni a, lirthei khalh laiin shock te hi a absorb a, thlamuanna leh himna a pe a ni. Tin, TDI - based polyurethane foam hi insulation application-ah te, refrigerator leh building insulation material-ah te hman a ni a, hei hi thermal insulation property tha tak a nih vang a ni.
Coatings leh Adhesives te chu: TDI hian high - performance coatings leh adhesives siamnaah hmun pawimawh tak a chang a ni. Coatings industry-ah chuan TDI - based polyurethane hmangin substrate hrang hrang, metal, plastic, leh thing te tan coating chhe thei lo, scratch - resistant, leh chemically resistant siam a ni. Heng coatings te hi automotive finish, floor coating, leh industrial equipment coatings ah te hman a ni. Adhesives market-ah chuan TDI - containing adhesives hi an bonding theihna nghet tak avangin an hlut hle. Furniture inzawmkhawmnaah te, motor components bonding-naah te, leh in sakna hmanrua hrang hrang inzawmkhawmna atana in sakna industry-ah te an hmang thin.
Elastomer siam chhuah dan: TDI hi polyurethane elastomer siam nan hman a ni a, hei hian rubber leh plastic property te chu a inzawm khawm a ni. Heng elastomer te hian hmun tam takah hmanna an hmu a, chu chu pheikhawk kephah siamnaah te, chutah chuan a inthlak danglam theihna tha tak, a chhe thei lo tur leh shock absorption tha tak a pe a ni. Industrial seal leh gasket siamnaah pawh an hmang a, chutah chuan chemical, abrasion leh temperature sang tak laka an do theihna avangin boruak khirh takah pawh hman theih a ni.

Inbuatsaihna Dan

Hmanlai Phosgenation kawng hrang hrang
2,4 - Amino Toluene kalna kawng: A kalphung chu 2,4 - amino toluene chu a hmin a, chlorbenzene-ah a hmin atanga tan a ni. He solution hi phosgene nen step hnih hmangin an inrem leh a. Pakhatnaah chuan low - temperature reaction chu temperature range 35 - 45°C chhungah a thleng a. Chumi hnuah chuan 130°C hnuai lam temperature-ah high - temperature reaction a awm leh a. Reaction te a zawh hnuah nitrogen gas dahin hydrogen chloride reacted lo leh phosgene tam lutuk chu paih chhuah a ni. Chumi hnuah chlorbenzene chu distilled off a ni a, a tawp berah chuan vacuum distillation hmanga TDI thianghlim hmuh a ni.
Nitro Toluene Route: Hetiang hmang hian nitro toluene chu nitrate hmasain tihhniam a ni a, 2,4 - diaminotoluene a lo chhuak a ni. He intermediate hi phosgenation-ah an dah a, chutah chuan phosgene nen an inrem a, TDI a siam ta a ni. Chumi hnuah chuan reaction mixture chu process-in TDI product chu a inthen a, a tithianghlim a ni.
Thiltih dan dang lo chhuak tharte
Phosgene ni lo kawngpui: Tun hnaiah chuan phosgene hmanna nena inzawm boruak chhiatna tihziaawmna tura TDI siam chhuahna atana non - phosgene method siam chhuah hi ngaih pawimawh a ni chho ta hle a ni. Entirnan, zirchianna thenkhat chuan phosgene mamawh lovin TDI siam nan reagent dang leh reaction condition hman dan tur an zirchiang mek a ni. Mahse, heng hmanrua te hi hmasawnna dinhmunah an la awm a, sumdawnna lamah pawh nasa takin an la hmang thei lo.

Fimkhur dan tur

Hriselna atana hlauhawm: TDI vapor hian mihring hriselna atan hlauhawmna nasa tak a thlen a ni. Mit, vun leh thawkna kawng a ti na hle. Hun rei tak emaw, vawi tam tak emaw a awm chuan hriselna lama harsatna nasa tak a thlen thei a, chu chu thawk lama harsatna, bronchitis, asthma - ang chi symptoms, leh a then phei chuan bronchiectasis leh pulmonary heart disease ang chi natna khirh zawk a thlen thei bawk. Entirnan, ni khatah darkar 6 chhung, ni 5 - 10 chhunga (0.5 - 1)×10−6 inkar concentration-a rats-te chu toxic effects-ah an thi tih hmuhchhuah a ni. Mihringah chuan 0.0005mg/L aia hniam inhaling hian khuh na tak leh thawk hahna a thlen thei a ni.

Flammability leh Explosion hlauhawmna: 1.1. TDI hi kang thei tui a ni a, a vapor te hian boruak nen puak thei mixture a siam thei a ni. Open flames, sparks, emaw heat sang tak hnuaia a awm chuan kang leh puak hlauhawmna nasa tak a awm a ni. Chuvangin, chutiang hlauhawm lo awm tur venna atan chuan dahkhawm leh hman dan dik a pawimawh hle.
Storage and Handling: TDI hi ni êng direct, heat source leh ignition source atanga hla takah dah tur a ni. Vapor leakage awm loh nan storage container te chu khauh taka seal tur a ni. Tui leh thil dang nena a inrem theih dan ngaihtuah chuan, a nena inrem thei tur thil, oxidizing agents ang chi te a\angin a hranin dah tur a ni. A hman lai hian mimal invenna hmanraw \ha tak tak, chemical - resistant gloves, safety goggles, leh thawkna laka invenna te pawh bun tur a ni a, chu chu exposure risk a tlem theih nan a ni.

A chiang zawk

Quality Control Sheet a ni