Jeŋ muu fɛɛ - TDI ni ji nɔ ni fe fɛɛ: Tsumaa ni he hiaa waa yɛ Polyurethane nitsumɔhe lɛ

Gbɔmɔtsoŋ kɛ Tsofafeemɔ Nibii

Hefɛo kɛ Fuumɔ: TDI lɛ jieɔ ehe kpo akɛ nu ni bɛ su ni mli tse loo ni yɔɔ ŋmɔlɔŋmɔlɔ fioo, ni shãa waa. Ejieɔ ŋmɔlɔ ni naa wa, ni mli wa, ni yɔɔ srɔto ni haa mɔ mli fuɔ, ni eji nɔ ko ni he hiaa ni tsɔɔ akɛ eyɛ jɛmɛ.
Nɔ ni mli tse kɛ nɔ ni tsuɔ nii: Abaanyɛ akɛ nibii srɔtoi ni wala yɔɔ mli tamɔ ethanol (ni fiteɔ), diethylene glycol monoethyl ether, diethyl ether, acetone, carbon tetrachloride, benzene, chlorobenzene, kerosene, kɛ oliv fɔ afutu mli oya. Tsofa sui ni yɔɔ mli lɛ ateŋ ekome ji bɔ ni ekɛ nu feɔ ekome, nifeemɔ ni haa kɔɔyɔɔ ni ji carbon dioxide baa. Kɛfata he lɛ, TDI baanyɛ ekɛ nibii ni hydrogen atoms ni tsuɔ nii yɔɔ mli lɛ atsu nii oya, ni eji nɔ ko ni akɛtsuɔ nii yɛ nitsumɔhei babaoo amli.
Gbɔmɔtsoŋ nibii ni tsakeee: TDI yɛ hulutsoo be ni miihe ashɛ 247°C, ni no tsɔɔ bɔ ni hulutsoo be lɛ tsakeɔ kɛjɛɔ nu mli kɛyaa kɔɔyɔɔ shihilɛ mli yɛ kɔɔyɔɔ mli hewalɛ ni sa lɛ shishi. Ehe ni edɔ lɛ jeɔ shishi kɛjɛɔ 19.5 kɛyashiɔ 21.5°C, ni tsɔɔ bɔ ni edɔɔ yɛ shishigbɛ ni ehaa efeɔ ŋmɔlɔŋmɔlɔ. TDI lɛ la ni tsoɔ lɛ ji 127°C, ni tsɔɔ akɛ yɛ nɛkɛ la ni tsoɔ nɛɛ mli lɛ, ebaanyɛ ekɛ la ni tsoɔ waa aba yɛ la ni tsoɔ yɛ he ko ni yɔɔ jɛmɛ lɛ hiɛ. Kɛtsɔ 1.217 ni eyɔɔ lɛ nɔ lɛ, eyɛ ŋmɔlɔ fe nu, ni eyɛ nɔ ni etsɔɔ yɛ bɔ ni akɛtsuɔ nii ahaa kɛ bɔ ni agbalaa mli yɛ nitsumɔhei kɛ shihilɛ mli nibii amli lɛ he.

He ni Akɛtsuɔ Nii yɛ

Pɔliuretan Foam feemɔ: TDI ji shishitoo tɛ ni akɛfeɔ polyurethane foams, ni akɛtsuɔ nii babaoo yɛ nitsumɔhei babaoo. Yɛ shĩa mli nibii ahe nitsumɔ mli lɛ, polyurethane foams ni yɔɔ blɛoo ni akɛ TDI fee lɛ ji nibii ni ahalaa kɛfeɔ shĩa mli shĩa mli nibii ni haa mɔ tsui nyɔɔ emli ni yeɔ ebuaa yɛ sofa, sɛii, kɛ matrɛs mli. Yɛ tsɔnei ahe nitsumɔhe lɛ, akɛ nɛkɛ ŋmɔtɔi nɛɛ tsuɔ nii yɛ tsɔne sɛii amli, ni ehaa mɔ tsui nyɔɔ emli ni ehaa mɔ tsui nyɔɔ emli kɛtsɔ tsɔne ni haa mɔ he jɔ̃ɔ ehe beni akudɔɔ tsɔne lɛ nɔ. Kɛfata he lɛ, akɛ TDI - ni damɔ polyurethane foams nɔ lɛ tsuɔ nii yɛ nibii ni akɛwoɔ hulutsoo mli, tamɔ yɛ friji kɛ tsumaa mli nibii ni akɛwoɔ hulutsoo mli lɛ amli, yɛ amɛ hulutsoo nibii ni hi jogbaŋŋ lɛ ahewɔ.
Nibii ni akɛwoɔ mli kɛ nibii ni akɛkpɛtɛɔ he: TDI tsuɔ gbɛfaŋnɔ ko ni he hiaa waa he nii yɛ nibii ni akɛwoɔ mli ni tsuɔ nii jogbaŋŋ kɛ nibii ni akɛkpɛtɛɔ nii ahe lɛ afeemɔ mli. Yɛ tsɔne ni akɛwoɔ tsɔne mli lɛ mli lɛ, akɛ TDI - ni ji polyurethanes tsuɔ nii koni akɛfee tsɔne ni akɛwoɔ tsɔne mli ni sɛɛ tsɛɔ, ni nyɛɔ etswaa, ni tsofai nyɛɔ eshiɔ tsɔnei ni akɛwoɔ tsɔne mli lɛ ahe nibii srɔtoi, ni dade, plastic, kɛ tsei fata he. Akɛ nɛkɛ nibii nɛɛ tsuɔ nii yɛ tsɔnei ahe nibii ni akɛgbeɔ naa, shikpɔŋ nɔ nibii, kɛ nitsumɔhei nibii ahe nibii amli. Yɛ tsɔnei ni akɛkpɛtɛɔ nii ahe lɛ ahe jarayeli mli lɛ, abuɔ TDI - ni tsɔnei ni akɛkpɛtɛɔ nii ahe lɛ yɔɔ mli lɛ akɛ nɔ ko ni jara wa waa yɛ bɔ ni amɛnyɛɔ amɛkpɛtɛɔ nii ahe waa lɛ hewɔ. Akɛtsuɔ nii yɛ shĩa mli nibii anaabuamɔ mli, tsɔne mli nibii ni akɛkpɛtɛɔ he, kɛ tsumaa nitsumɔ mli kɛha tsumaa nibii srɔtoi ni akɛkpɛtɛɔ he.
Elastomer feemɔ: Akɛ TDI feɔ polyurethane elastomers, ni kɛ rɔba kɛ plastic nibii feɔ ekome. Nɛkɛ elastomers nɛɛ naa nitsumɔ yɛ hei babaoo, tamɔ yɛ tokotai ashishifeemɔ mli, he ni amɛhaa mɔ nyɛɔ etsakeɔ ehe jogbaŋŋ, ehiɔ shi be kakadaŋŋ, ni ehaa mɔ he jɔ̃ɔ ehe. Akɛtsuɔ nii hu yɛ nitsumɔhei ni akɛwoɔ tsɔne mli kɛ tsɔnei ni akɛwoɔ tsɔne mli lɛ afeemɔ mli, he ni bɔ ni amɛnyɛŋ amɛshi tsofai, tsɔnei ni shwieɔ shi, kɛ hulutsoo ni naa wa lɛ haa amɛfeɔ nɔ ni sa kɛha nitsumɔ yɛ hei ni mli wa waa lɛ.

Gbɛi ni Atsɔɔ nɔ Asaa He

Kusum Fosgenation Gbɛi
2,4 - Amino Toluen Gbɛ: Nifeemɔ lɛ jeɔ shishi kɛ 2,4 - amino toluene ni ashãa ni akɛwoɔ klorobenzene mli lɛ. No sɛɛ lɛ, akɛ nɛkɛ tsabaa nɛɛ kɛ phosgene tsuɔ nii yɛ gbɛi enyɔ nɔ. Klɛŋklɛŋ lɛ, hulutsoo be ni baa shi lɛ baa yɛ hulutsoo be ni ji 35 - 45°C lɛ mli. No sɛɛ lɛ, hulutsoo ni nɔ kwɔ baa yɛ hulutsoo ni shɛɛɛ 130°C mli. Kɛji akɛ nibii ni tee nɔ lɛ egbe naa lɛ, akɛ nitrogen gas woɔ mli koni ejie hydrogen chloride ni efeee nɔ ko kɛ phosgene ni fa fe nine lɛ fɛɛ. No sɛɛ lɛ, ajieɔ chlorobenzene lɛ kɛjɛɔ mli, ni naagbee nɔ ni afeɔ lɛ ji vacuum ni ajieɔ kɛjɛɔ mli koni ana TDI krɔŋŋ.
Nitro Toluene Gbɛ: Yɛ gbɛ nɛɛ nɔ lɛ, klɛŋklɛŋ lɛ, ajieɔ nitro toluene lɛ kɛjɛɔ mli, ni no sɛɛ lɛ, ajieɔ lɛ shi koni aná 2,4 - diaminotoluene. No sɛɛ lɛ, akɛ nɛkɛ teŋgbɛ nɔ nɛɛ woɔ phosgenation mli, he ni ekɛ phosgen lɛ feɔ TDI lɛ. No sɛɛ lɛ, atsuɔ nɔ ni akɛfutuɔ nii lɛ he nii koni akɛgbala TDI nibii lɛ amli ni atsuu he.
Gbɛi Krokomɛi ni Miiba
Gbɛi ni jeee - Fosjin: Yɛ nyɛsɛɛ afii nɛɛ amli lɛ, asusu gbɛi ni jeee - phosgene ni akɛfeɔ TDI lɛ ahe babaoo yɛ mɔdɛŋ ni abɔɔ koni ajie shihilɛ mli naagbai ni kɛ phosgene ni akɛtsuɔ nii lɛ baa lɛ shi. Akɛ nɔkwɛmɔnɔ lɛ, niiamlitaomɔi komɛi miipɛi nibii krokomɛi ni akɛtsuɔ nii kɛ shihilɛi ni haa mɔ tsui nyɔɔ emli lɛ amli koni akɛfee TDI ni phosgene he ehiaaa. Shi kɛlɛ, gbɛi nɛɛ yɛ shweremɔ mli lolo, ni amɛshɛko jarayeli he nitsumɔ he babaoo lolo.

Gbɛjianɔtoi

Hewalɛ Osharai: TDI lasu lɛ kɛ osharai ni mli wa baa adesa hewalɛnamɔ nɔ. Ehaa hiŋmɛii, hewolo, kɛ mumɔ gbɛ lɛ mli fuɔ waa. Kɛji akɛ mɔ ko kɛ ehe wo mli be kakadaŋŋ loo ekɛ ehe wo mli shii abɔ lɛ, ebaanyɛ ekɛ helai ni naa wa aba, ni nɔ ni fata he ji mumɔ mli naagbai tamɔ tsɛŋemɔ hela, tsɛŋemɔ hela - tamɔ okadii, ni yɛ bei komɛi amli lɛ, shihilɛi ni mli wa fe nakai po tamɔ tsɛŋemɔ hela kɛ tsɛŋemɔ hela ni haa mɔ tsui fãa. Akɛ nɔkwɛmɔnɔ lɛ, atsɔɔ akɛ ŋmeii ni akɛwoɔ ŋmeii ni falɛ ji (0.5 - 1)×10−6 mli ŋmɛlɛtswai 6 daa gbi, fe gbii 5 - 10 lɛ, yeɔ ŋmeii ni jɛɔ mli baa lɛ anɔ kunim. Yɛ adesai amli lɛ, kɛ́ mɔ ko mu ni eshɛɛɛ 0.0005mg/L lɛ, ebaanyɛ ekɛ ŋmɔlɔ ni naa wa kɛ mumɔ ni sɛɛ tsɛɔ aba.

La ni Shãa kɛ Tsɔɔmɔ Osharai: TDI ji nu ko ni shãa oya, ni e-vapors lɛ baanyɛ afee nibii ni tswaa kɛ kɔɔyɔɔ. Kɛji akɛ la ni tsoɔ, la ni tsoɔ waa, loo la ni mli edɔ waa lɛ, oshara ni yɔɔ akɛ ebaashã ni ebaatswa lɛ yɛ. No hewɔ lɛ, gbɛjianɔtoo ni sa ni akɛtoɔ nibii ahe kɛ nitsumɔ he miihia koni akɛtsi osharai ni tamɔ nɛkɛ naa.
Nɔ ni Akɛtoɔ kɛ He ni Akɛtsuɔ Nii: Esa akɛ akɛ TDI lɛ ato he ko ni mli ejɔ, ni kɔɔyɔɔ kpakpa yɔɔ mli, ni hulu la ni tsoɔ tɛ̃ɛ, hulutsoo hei, kɛ he ni la shãa lɛ bɛ jɛmɛ. Esa akɛ atsĩ nibii ni akɛtoɔ lɛ amli jogbaŋŋ koni lasu akajɛ mli. Akɛni ekɛ nu kɛ nibii krokomɛi yeɔ tsakpaa hewɔ lɛ, esa akɛ akɛto he kroko kɛjɛ nibii ni baanyɛ ekɛ lɛ afee ekome, tamɔ nibii ni haa hulutsoo baa lɛ ahe. Yɛ be mli ni akɛtsuɔ nii lɛ, esa akɛ awo nibii ni sa ni buɔ mɔ he, ni tsofai ni nyɛɔ eshiɔ glɔvs, shweshweeshwefeemɔ he ŋmɛlɛtswai, kɛ mumɔ hebuu fata he lɛ koni osharai ni baanyɛ aba kɛjɛ mli lɛ aba shi.

Nibii pɔtɛɛ

Wolo ni Kwɛɔ Nɔ ni Hi jogbaŋŋ lɛ Nɔ