Vawleicung - Premier TDI: Polyurethane Industry ah A Herh Bikmi Saknak Lung
Taksa le Chemical sining
A muisam le a rim: TDI cu a tlangpi in rong a ngei lomi a fiangmi asiloah tlawmpal a senmi, a kang khomi ti bantuk in a lang. A rim a nam, a tthawng, le a thleidangmi thinhunnak a chuahter, cucu a um ti a langhtertu a biapi mi hngalh khawhnak ah a hman.
A cawh khawhnak le aa thlen khawhnak: Ethanol (a rawhnak he), diethylene glycol monoethyl ether, diethyl ether, acetone, carbon tetrachloride, benzene, chlorobenzene, kerosene, le olive chiti tibantuk organic solvent phunphun he fawi tein cawh khawh a si. A sining langhter bikmi chemical sining pakhat cu ti he aa pehtlaih khawhnak a si, cu nih cun carbon dioxide gas a chuahter. Cun, TDI nih a cawlcangmi hydrogen atom aa telmi thilri pawl he rang tein aa pehtlaih khawh, mah thilri cu riantuannak tampi ah hmanmi a si.
A biapimi taksa aa thleng lomi: TDI cu 247°C hrawng a linnak hmun a ngei, cu nih cun a ttha mi thli hneknak tangah ti bantuk in thli bantuk dirhmun ah aa thlennak lumnak kha a khiah. A lumternak cu 19.5 in 21.5°C karlak a si, cu nih cun a tlawm deuhnak lumnak kha a langhter. TDI a kanghnak hmun cu 127°C a si, a sullam cu hi lumnak ah hin, meikhu a chuahnak hmun ah meikhu a chuahter khawh. A tluknak 1.217 he, ti nakin a rit deuh, cu nih cun riantuannak le pawngkam kongkau ah a tawlrelnak le a tthennak ah sullam a ngei.
Hmannak Hmun
Polyurethane Foam chuahnak: TDI cu polyurethane foams sernak ah a hrampi a si, cu hna cu riantuannak tampi ah tam deuh in hman an si. Innchung thilri lei ah, TDI in sermi nemmi polyurethane foams cu sofa, tthutdan le ihkhun ah a nuammi le a dirkamhtu tthutdan sernak caah thim khawhmi thilri an si. Mawtaw sernak ah, hi foam pawl hi mawtaw tthutnak ah hman an si, mawtaw mawngh lio ah hnahnawhnak a lak khawh caah hnangamnak le himnak a pek. Cun, TDI - based polyurethane foams cu lumternak thilri hna ah hman a si, cu hna cu lumternak thilri le inn lumternak thilri hna ah an si, zeicahtiah an ttha tukmi lumternak thilri hna an si.
Hnawmhnak le Hnawmhnak: TDI nih a ttha ngaimi thilthuam le hrenhnak sernak ah a biapi tukmi rian a ttuan. Hnawmhnak riantuannak ah, TDI - hrambunhmi polyurethanes cu thir, plastic le thing telh in a phunphun caah a fekmi, hliah khawh lomi le chemical nih a doh khawhmi hnawhnak sernak caah hman a si. Hi thilthuam hna hi mawtaw thlennak, inncung thilthuam, le riantuannak thilri thilthuam hna ah hman an si. Adhesives market ah, TDI - aa telmi adhesives cu an fekmi pehtlaihnak thilti khawhnak ruangah man an ngei. Innchung thilri pawl fonhnak, mawtaw thilri pawl i fonhnak le innsaknak riantuannak ah inn saknak thilri phunphun fonhnak ah an hman hna.
Elastomer sernak: TDI cu polyurethane elastomer sernak caah hman a si, cu nih cun rubber le plastic thilri hna kha a fonh hna. Hi elastomer pawl nih hin hmun tampi ah hmannak an hmuh, cu hna cu kedan kedan sernak ah an si, cuka ahcun a ttha tukmi nemnak, fek tein um khawhnak le hnahnawhnak tuar khawhnak an pek. Cun, riantuannak seal le gasket sernak ah an hman hna, cuka ahcun chemical, hnahnawhnak le lum tuknak hna an doh khawhnak nih a harmi pawngkam ah hman awkah aa tlakter hna.
Timhtuahnak Lam
Hlanlio Phosgenation Lam
2,4 - Amino Toluene Lam: Mah thil kalning cu 2,4 - amino toluene cawh in chlorobenzene ah cawh in aa thawk. Mah cawhmi cu phosgene he step hnih in an i pehtlaih. Pakhatnak ah, 35 - 45°C karlak ah a niam - lumnak thlennak a chuak. Cu hnu ah, 130°C tang lumnak ah a sangmi - lumnak thlennak a cang. Reaction a dih hnu ah, nitrogen gas cu a cawlcang rih lomi hydrogen chloride le a tam tukmi phosgene chuah khawhnak ding caah an luhter. Cu hnu ah chlorobenzene cu an thlet, cun a donghnak bik ah TDI thianghlim hmuh khawhnak ding caah vacuum thletnak aa tel.
Nitro Toluene Lam: Hi lamthluan ah hin, nitro toluene cu nitrated hmasa a si i, cu hnu ah 2,4 - diaminotoluene hmuh khawhnak ding caah a zorter. Mah karlak thilri cu phosgenation ah aa tel, cuka ahcun phosgene he aa pehtlaih i TDI a ser. Cu hnu ah thlennak cawhmi cu TDI thilchuak kha thleidan le thianh awkah an thlen.
A chuakmi lam dang
Phosgene a si lomi lam: Nai kum hna ah, phosgene hmannak he aa pehtlaimi pawngkam hnahnawhnak zorternak caah TDI chuah khawhnak ding caah phosgene a si lomi lam sernak ah lungthin peknak a karh chin lengmang. Tahchunhnak ah, hlathlainak cheukhat nih phosgene hman hau loin TDI sernak caah a dang reagents le lehrulhnak dirhmun hmannak kong an hlathlai. Sihmanhsehlaw, hi lam hna hi tthanchonak dirhmun ah an um rih i chawlehnak ah a karh ngaimi hmannak an hmu rih lo.
Ralrinnak
Ngandamnak caah tihnung: TDI thli nih minung ngandamnak caah tihnung ngai a chuahpi. Mit, vun le thawchuahnak lam caah a fahter tuk. Caan saupi asiloah voi tampi i chawnhnak nih ngandamnak kong he aa tlaiin fakpi in harnak a chuahter khawh, cu ah cun thawchuahnak lei harnak hna cu thawchuah harnak, thawchuah harnak bantuk zawtnak hmelchunhnak hna, cun a caan ahcun, thawchuah harnak le thawchuahnak lei zawtnak tibantuk a zual deuhmi thil sining hna zong aa tel. Tahchunhnak ah, nikhat ah suimilam 6 chung, ni 5 - 10 chung (0.5 - 1)×10−6 karlak ah a ummi vok pawl cu a ttha lomi thil sining nih a tei hna ti a si. Minung ahcun, 0.0005mg/L tluk tlawmte thawchuahnak nih fakpi in khuh le thawchuah harnak a chuahter khawh.
Mei kangh khawhnak le puak khawhnak ttihnung: TDI cu a kang khomi ti a si, cun a thli nih thli he a puak khomi cawhmi a ser khawh. Meikhu, meikhu, asiloah a lin tukmi he i tong tikah, kanghnak le puahnak ttihnung a um. Cucaah, cu bantuk ttihnung thil hna khamnak caah chiahnak le tawlrel ningcang ttha tein ngeih a herh.
Chiahnak le Hmannak: TDI cu a kikmi, thli a lut khomi thil chiahnak inn ah chiah ding a si, ni ceunak, lumnak le meikhu chuahnak hmun hna in a hlatnak hmun ah chiah ding a si. Thil chiahnak kuang pawl cu meikhu a chuah lonak hnga fek tein khar a hau. Ti le thil dangdang he aa pehtlaih khawhnak ruangah, aa pehtlaih khomi thilri hna, oxidizing agents tibantuk hna he a dang tein chiah ding a si. Tawlrel lio ah, aa tlakmi pumpak kilvennak thilri, chemical - a kham khomi kutdonghrolh, himnak mithmaihuh, le thawchuahnak kilvennak telh in, i hruk ding a si, cu nih cun a tlawmter lai.
A sining
| Thilri min | Toluene Diisocyanate | |||||||||
| Chemical Formula | C9H6N2O2 | |||||||||
| Molecule rit | 174.16 g/mol | |||||||||
| Muisam umtuning | Rong ngei lo in a senmi tiang a fiangmi ti | |||||||||
| A linnak hmun | 19.5–21.5°C | |||||||||
| A linnak hmun | 247°C | |||||||||
| Chahnak | 1.22 g/cm3 | |||||||||
| CAS NO | 584-84-9 | |||||||||
| HS Code | 29291010 | |||||||||
| EINECS NO | 209-544-5 | |||||||||
| Shouhhlua | Polyurethane foams, elastomers, coatings, adhesives caah hmanmi a si. | |||||||||
Quality Control Sheet
| Thilri min | Toluene Diisocyanate | ||||||
| PARAMETERS | TAHFUNG | Hneksaknak A phichuak | |||||
| Toluene Diisocyanate%≧ a chunglei | 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 | |||||