Xexeame katã - Premier TDI: Xɔtuɖaŋu si hiã vevie le Polyurethane Dɔwɔƒe

Dzɔdzɔmeŋusẽ kple Dzɔdzɔmeŋusẽŋununya ƒe Nɔnɔmewo

Dzedzeme Kple Ʋeʋẽ: Zi geɖe la, TDI dzena abe tsi si me amadede mele o si me kɔ alo si le ɣie vie, si te ŋu xɔa dzo ŋutɔ ene. Eɖea ʋeʋẽ lilili, sesẽ, eye wòdoa dziku na ame wòɖe dzesi, si nyea seselelãme vevi aɖe si fiaa eƒe anyinɔnɔ.
Nusiwo Wotsɔna Klɔa Nu Kple Nusiwo Wowɔna: Woate ŋu atsakae kple lãmenugbagbeviwo ƒe ʋeʋẽ vovovowo abe ethanol (si me gblẽ), diethylene glycol monoethyl ether, diethyl ether, acetone, carbon tetrachloride, benzene, chlorbenzene, kerosene, kple amititsetse ƒe ami ene bɔbɔe. Eƒe atike ƒe nɔnɔme siwo ɖe dzesi wu dometɔ ɖekae nye eƒe dɔwɔwɔ kple tsi, si nye nuwɔna si naa carbon dioxide gas dona. Tsɔ kpe ɖe eŋu la, TDI ate ŋu awɔ nu kabakaba kple atike siwo me haidrodzin atɔm siwo le dɔ wɔm le, si nye nɔnɔme si wozãna le dɔwɔƒewo ƒe dɔwɔwɔ geɖe me.
Ŋutilã me Nu Vevi Siwo Nɔa Anyi Madzudzɔmadzudzɔe: TDI ƒe dzoxɔxɔ anɔ abe 247°C ene, si fiaa dzoxɔxɔ si me wòtrɔna tso tsi me yia ya ƒe nɔnɔme me le yame ƒe nyaƒoɖeamenu si sɔ me. Eƒe dzoxɔxɔ tso 19.5 va ɖo 21.5°C, si fia dzoxɔxɔ si te wòsesẽna. TDI ƒe keklẽŋusẽ nye 127°C, si fia be le dzoxɔxɔ sia me la, ate ŋu awɔ dzoxɔxɔ si ate ŋu axɔ dzo ne dzotsoƒe aɖe li. Esi eƒe kpekpeme nye 1.217 ta la, eƒe kpekpeme sɔ gbɔ wu tsi, si gblẽa nu le eŋudɔwɔwɔ kple eƒe mama le dɔwɔƒewo kple nutome ƒe nɔnɔmewo me ŋu.

Afisiwo Woawɔ Dɔ Le

Polyurethane Foam ƒe Dɔwɔwɔ: TDI ye nye dzogoedzikpe le polyurethane foamwo wɔwɔ me, siwo wozãna geɖe le dɔwɔƒe gbogbo aɖewo me. Le xɔmenuwo ƒe akpa dzi la, polyurethane-fu falɛfalɛ siwo wotsɔ TDI wɔe nye nusi wotia be woatsɔ awɔ akɔtaɖonu siwo fa eye wodoa alɔ ame le sofawo, abɔtazikpuiwo, kple mattresswo me. Le ʋuwɔƒewo la, wozãa futukpɔ siawo le ʋu ƒe zikpuiwo me, si naa akɔfafa kple dedienɔnɔ to ʋuʋudedi siwo woxɔna ne wole ʋu kum me. Gakpe ɖe eŋu la, wozãa TDI - si wotu ɖe polyurethane foams dzi le dzoxɔxɔnutsitikewo me, abe le fridziwo kple xɔtunuwo me ene, le woƒe dzoxɔxɔnutsitike ƒe nɔnɔme nyuiwo ta.
Nusiwo Wotsyɔa Nu Kple Nusiwo Wotsɔna Kpena Ðe Nu Ŋu: TDI wɔa akpa vevi aɖe le nusiwo wotsɔ blaa nu kple nusiwo wotsɔna léa nu ɖe ​​nu ŋu siwo wɔa dɔ nyuie la wɔwɔ me. Le nusiwo wotsɔna blaa nu ƒe dɔwɔƒewo la, wozãa polyurethanes siwo wotu ɖe TDI dzi tsɔ wɔa nusiwo nɔa anyi didina, siwo te ŋu nɔa te ɖe ʋuʋudedi nu, eye womete ŋu nɔa te ɖe atikewo nu o na nusiwo wotsɔ blaa nu vovovowo, siwo dometɔ aɖewoe nye ga, plastik, kple ati. Wozãa nu siawo le ʋuwo ƒe awuwo, anyigbadzinuwo, kple dɔwɔƒewo ƒe dɔwɔnuwo ƒe nutsyɔnuwo me. Le aŋenuwo ƒe asi me la, wodea asixɔxɔ aŋenu siwo me TDI - le ŋu le woƒe kadodo sesẽ ƒe ŋutetewo ta. Wozãa wo le xɔmenuwo ƒoƒo ƒu me, ʋu ƒe akpa aɖewo babla, kple xɔtudɔwɔƒewo tsɔ ƒoa xɔtunu vovovowo nu ƒu.
Elastomer Dɔwɔƒe: Wozãa TDI tsɔ wɔa polyurethane elastomers, siwo ƒoa rababa kple plastic ƒe nɔnɔmewo nu ƒu. Woate ŋu azã elastomer siawo le nu geɖe me, abe afɔkpa ƒe afɔkpodziwo wɔwɔ me ene, afisi wote ŋu trɔna ɖe nɔnɔmewo ŋu nyuie, wonɔa anyi didina, eye woxea mɔ na wo le. Wozãa wo le dɔwɔƒewo ƒe nutrenuwo kple gasketwo wɔwɔ hã me, afisi woƒe tsitretsitsi ɖe atikewo, ʋuʋudedi, kple dzoxɔxɔ gã ŋu nana wosɔna na zazã le nɔnɔme sesẽwo me.

Dzadzraɖomɔnu Siwo Wozãna

Mɔ Siwo Wotsɔna Ðea Phosgenation Dekɔnu Me
2,4 - Amino Toluene Mɔzɔzɔ: Dɔwɔwɔa dzea egɔme kple 2,4 - amino toluene tsɔtsɔ ƒu gbe eye wotsɔe ƒo ɖe chlorbenzene me. Emegbe wowɔa tsi sia kple phosgene le afɔɖeɖe eve me. Gbã la, dzoxɔxɔ si bɔbɔ ƒe nuwɔna dzɔna le dzoxɔxɔ ƒe didime si nye 35 - 45°C me. Emegbe la, dzoxɔxɔ gã ƒe nuwɔna aɖe dzɔna le dzoxɔxɔ si mede 130°C o me. Ne wowu nuwɔnaawo nu vɔ la, wotsɔa nitrogen gas dea eme be wòaɖe haidrodzin chloride ɖesiaɖe si mewɔ dɔ o kple phosgene si sɔ gbɔ la ɖa. Emegbe woɖea chlorbenzene la ɖa, eye afɔɖeɖe mamlɛtɔe nye be woaɖe tsi le ya me be woakpɔ TDI dzadzɛ.
Nitro Toluene Mɔzɔzɔ: Le mɔnu sia me la, wowɔa nitrated nitro toluene gbã eye emegbe woɖea edzi kpɔtɔna be woakpɔ 2,4 - diaminotoluene. Emegbe wotsɔa domedomenu sia dea phosgenation me, afisi wòwɔa nu kple phosgene tsɔ wɔa TDI. Emegbe wotrɔa asi le nusiwo wotsɔ tsakae ŋu be woama TDI ƒe nusi wowɔ la me ahakɔ eŋu.
Mɔnu Bubu Siwo Le Dzɔdzɔm
Mɔ siwo menye - Phosgene o: Le ƒe ʋɛ siwo va yi me la, amewo ƒe susu le mɔnu siwo menye phosgene o toto vɛ ŋu be woatsɔ awɔ TDI le agbagbadzedze be woaɖe ŋusẽkpɔɖeamedzi si do ƒome kple phosgene zazã ɖe nutome ŋu dzi akpɔtɔ. Le kpɔɖeŋu me, numekuku aɖewo le ŋku lém ɖe atike bubuwo zazã kple nuwɔna ƒe nɔnɔmewo ŋu be woawɔ TDI evɔ mehiã be woawɔ phosgene o. Gake mɔnu siawo gakpɔtɔ le ŋgɔyiyi ƒe afɔɖeɖe me eye womekpɔ wo le asitsatsa me le afisiafi haɖe o.

Afɔɖeɖewo

Lãmesẽ ƒe Afɔkuwo: TDI ƒe yaƒoƒo dea afɔku gã aɖe amegbetɔ ƒe lãmesẽ me. Edoa dziku vevie na ŋku, ŋutigbalẽ, kple gbɔgbɔtsixe. Ne wozãe ɣeyiɣi didi alo enuenu ate ŋu ahe lãmesẽkuxi sesẽwo vɛ, siwo dometɔ aɖewoe nye gbɔgbɔmekuxiwo abe aɖuɖɔtoedɔ, asrã - abe dzesiwo ene, eye le go aɖewo me la, nɔnɔme siwo nu sẽ wu gɔ̃ hã abe aɖuɖɔtoemedɔléle kple aklãdɔléle ene. Le kpɔɖeŋu me. Le amegbetɔwo gome la, ne wogbɔ ya si ƒe agbɔsɔsɔme mede 0.0005mg/L o la, ate ŋu ahe kɔdzidɔ sesẽ kple gbɔgbɔtsixetsixe vɛ.

Dzobibi Kple Wowó ƒe Afɔkuwo: TDI nye tsi si ate ŋu axɔ dzo, eye eƒe dzoxɔxɔ ate ŋu awɔ tsakatsaka siwo ate ŋu awó kple ya. Ne wodoe ɖe dzobibi, dzobibi, alo dzoxɔxɔ gã aɖe me la, afɔku gã aɖe le eme be woatɔ dzoe eye woawó. Eyata nudzraɖoƒe kple eŋudɔwɔwɔ ƒe ɖoɖo nyuiwo le vevie be woaxe mɔ ɖe afɔku mawo nu.
Nudzraɖoƒe Kple Eŋudɔwɔwɔ: Ele be woadzra TDI ɖo ɖe nudzraɖoƒe si fa miamiamia, si me ya le nyuie, si didi tso ɣe ƒe keklẽ tẽ, dzoxɔxɔtsoƒewo, kple dzodoƒewo gbɔ. Ele be woatu nugoe siwo me wodzraa nu ɖo la nyuie be yaƒoƒo nagage ɖe eme o. Esi wònye be ewɔa dɔ kple tsi kple nu bubuwo ta la, ele be woadzrae ɖo ɖe vovo tso nusiwo ate ŋu awɔ dɔ kplii, abe nusiwo naa oxidation ene gbɔ. Le eŋudɔwɔwɔ me la, ele be woado ame ŋutɔ ƒe ametakpɔnu siwo sɔ, siwo dometɔ aɖewoe nye asigɛ siwo me atikewo mele o, dedienɔnɔ ƒe ŋkumeɖobolo, kple gbɔgbɔtsixe ƒe ametakpɔnu, be woaɖe afɔku siwo ate ŋu ado tso eme la dzi akpɔtɔ.

Nusiwo wogblɔ tso eŋu

Dzɔdzɔmeŋusẽŋununya Dzikpɔgbalẽvi