I-PMDI CAS 9016-87-9 Polymethylene Polyphenyl Polyisocyanate
I-Shanghai Ruifu Chemical Co., Ltd. ingumkhiqizi ohamba phambili we-Polymethylene Polyphenyl Polyisocyanate (PMDI; I-Polymeric MID) (i-CAS: 9016-87-9) enekhwalithi ephezulu.I-Ruifu Chemical inganikeza ukulethwa komhlaba wonke, intengo encintisanayo, isevisi enhle kakhulu, amanani amancane kanye nenqwaba etholakalayo.Thenga i-PMDI,Please contact: alvin@ruifuchem.com
| Igama Lekhemikhali | I-Polymethylene Polyphenyl Polyisocyanate |
| Omqondofana | PMDI;I-PAPI;I-Polymeric MID;I-MDI PM 200;I-Polymethylene Polyphenyl Isocyanate;I-Poly[(phenyl isocyanate)-co-formaldehyde];I-Coronatemr200;Cr200 |
| Isimo Sesitoko | Esitokweni, Isikali Sokuhweba |
| Inombolo ye-CAS | 9016-87-9 |
| I-Molecular Formula | C8H7NO2 |
| Isisindo samangqamuzana | 149.14668 g/mol |
| Iphuzu elibilayo | 392℃/5 mm Hg |
| I-Flash Point | >230°F |
| Ukuminyana | 1.2 g/mL ku-25℃(lit.) |
| I-Refractive Index n20/D | 1.634 |
| I-COA ne-MSDS | Iyatholakala |
| Ibhrendi | I-Ruifu Chemical |
| Into | Izinga Lokuhlola | Imiphumela | IsivivinyoMindlela |
| Ukubukeka | Uketshezi Olunsundu | Uketshezi Olunsundu | I-GB/T 13658-1992 |
| I-Viscosity(25℃) (mPa.S) | 150-250 | 231 | I-GB/T 12009.3-2009 |
| Okuqukethwe kwe-NCO(%Wt) | 30.20~32.00 | 30.87 | I-GB/T 12009.4-1989 |
| Ukuminyana (25℃)/(g/cm3) | 1.220~1.250 | 1.232 | I-GB/T 4472-1984 |
| Okuqukethwe kwe-Acid(%, HCICi-unt) | ≤0.05 | 0.0060 | I-GB/T 12009.5-1992 |
| I-Hydrolysable Chlorine(%) | ≤0.20 | 0.0544 | I-GB/T 12009.2-1989 |
Iphakheji:220kg/Drum, noma ngokwezidingo zekhasimende.
Ukuthumela:Zilethe emhlabeni wonke ngendiza, ngolwandle nge-FedEx / DHL Express.Nikeza ukulethwa okusheshayo nokuthembekile.
Ukuzinza:Izinzile.Akuhambisani nama-oxidizing agents aqinile, utshwala.Ingabola emoyeni omanzi, noma lapho ithintana namanzi.
Njengoba i-PMDI iyikhemikhali esebenzayo, ukusabela ngomswakama womkhathi kwenzeka kalula futhi kuholela ekwakhekeni kwama-urea angancibiliki ne-carbon dioxide gas, okungaholela ekwakhekeni kwengcindezi ezitsheni ezivaliwe nokwanda kwe-viscosity yomkhiqizo.Ngakho-ke iziqukathi kufanele zome ngokuphelele futhi zivalwe ngokucophelela ngemuva kokuminyana nge-nitrogen.Iziqukathi ze-PMDI kufanele zigcinwe zivaliwe kahle futhi zigcinwe endlini endaweni eshisa kakhulu (15-35℃) endaweni enomoya omuhle.Isitoreji ezingeni lokushisa eliphansi (ngaphansi kuka-5℃) singase siholele ekukhanyeni okuthile;Ngakho-ke le nto kufanele ivikelwe eqhweni.Uma icrystallization yenzeka, okokusebenza kufanele kushisiswe ngokugingqe isigubhu kuhhavini womoya oshisayo ku-70-80℃ ukuze kuncibilike, futhi kufanele-ke kunyakazeke kahle ngaphambi kokusetshenziswa.Ukuncibilika emanzini okugeza akukhuthazwa.Ukugcina okunwetshiwe emazingeni okushisa angaphezu kuka-50℃ akunconywa ukuvimbela ekwakhekeni kwezinto eziqinile ezingancibiliki kanye nokwanda kwe-viscosity.
Indlela Yokuthenga?Sicela uxhumaneDr. Alvin Huang: sales@ruifuchem.com or alvin@ruifuchem.com
Iminyaka engu-15 Yokuhlangenwe nakho?Sinesipiliyoni seminyaka engaphezu kwe-15 ekwakhiweni nasekuthumeleni kwamanye amazwe uhla olubanzi lwezinga eliphezulu lokuxhumanisa imithi noma amakhemikhali amahle.
Izimakethe Eziyinhloko?Thengisa emakethe yasekhaya, eNyakatho Melika, eYurophu, eNdiya, eKorea, eJapane, e-Australia, njll.
Izinzuzo?Ikhwalithi ephezulu, intengo ethengekayo, izinsizakalo ezichwepheshile nokusekelwa kobuchwepheshe, ukulethwa okusheshayo.
IkhwalithiIsiqiniseko?Isistimu yokulawula ikhwalithi eqinile.Imishini yobuchwepheshe yokuhlaziya ifaka i-NMR, LC-MS, GC, HPLC, ICP-MS, UV, IR, NOMA, KF, ROI, LOD, MP, Clarity, Solubility, Microbial limit test, njll.
Amasampula?Imikhiqizo eminingi inikeza amasampula wamahhala wokuhlolwa kwekhwalithi, izindleko zokuthumela kufanele zikhokhelwe amakhasimende.
Ukuhlolwa Kwemboni?Wamukelekile ekucwaningweni kwemboni.Sicela wenze i-aphoyintimenti kusengaphambili.
I-MOQ?Ayikho i-MOQ.I-oda elincane liyamukeleka.
Isikhathi sokuthumela? Uma kungaphakathi kwesitoko, ukulethwa kwezinsuku ezintathu kuqinisekisiwe.
Ezokuthutha?By Express (FedEx, DHL), by Air, by Sea.
Amadokhumenti?Ngemuva kwenkonzo yokuthengisa: I-COA, i-MOA, i-ROS, i-MSDS, njll.
Custom Synthesis?Ingahlinzeka ngezinsizakalo zokwenziwa ngokwezifiso ukuze zilingane kangcono nezidingo zakho zocwaningo.
Imigomo Yokukhokha?I-invoyisi ye-Proforma izothunyelwa kuqala ngemva kokuqinisekiswa kwe-oda, kufakwe nemininingwane yethu yasebhange.Inkokhelo nge-T/T (Telex Transfer), PayPal, Western Union, njll.
Amakhodi Engozi
R20 - Kuyingozi ngokuhogela umoya
R36/37/38 - Ukucasula amehlo, uhlelo lokuphefumula kanye nesikhumba.
I-R42 - Ingabangela ukuzwela ngokuhogela
R42/43 - Ingabangela ukuzwela ngokuhogela umoya nangokuthinta isikhumba.
R26 - Ubuthi Kakhulu ngokuhogela
R22 - Iyingozi uma igwinywe
R39/23/24/25 -
R23/24/25 - Ubuthi ngokuhogela, ukuthintana nesikhumba futhi uma ugwinyiwe.
I-R11 - Ivutha Kakhulu
R20/21/22 - Kuyingozi ngokuhogela, ukuthintana nesikhumba futhi uma ukugwinyile.
Incazelo Yokuphepha
S26 - Uma uthintana namehlo, geza ngokushesha ngamanzi amaningi futhi ufune iseluleko sezokwelapha.
I-S28 - Ngemva kokuthinta isikhumba, geza ngokushesha ngensipho eningi.
I-S38 - Uma kungekho kungena komoya okwanele, gqoka izinto zokuphefumula ezifanele.
S45 - Uma kwenzeka ingozi noma uzizwa ungaphilile, funa iseluleko sezokwelapha ngokushesha (bonisa ilebula noma nini lapho kunokwenzeka.)
I-S36/37 - Gqoka izingubo zokuzivikela ezifanele namagilavu.
S23 - Ungawuphefumuli umhwamuko.
S16 - Gcina kude nemithombo yokuthungela.
I-S7 - Gcina isiqukathi sivalwe ngokuqinile.
I-S36 - Gqoka izingubo ezifanele zokuzivikela.
I-WGK Germany 3
I-RTECS TR0350000
I-Polymethylene Polyphenyl Polyisocyanate (PMDI; I-Polymeric MID) (CAS: 9016-87-9)
I-PMDI iwukwakheka okususelwe ku-disocyanate-diphenylmethane(MDI) equkethe ama-isocyanate athile asebenza kakhulu.Ukusebenza kumayelana 2.6-2.7.Iwuketshezi olunsundu emazingeni okushisa asendaweni.
I-PMDI ingasetshenziswa kabanzi ekukhiqizeni izinto eziqinile zokuvikela ukushisa kwe-PU Foam;ibuye isetshenziswe ku-foam ye-isocyanrate, amapende, ama-adhesives, i-foam yesakhiwo, igwebu lesikhumba elibalulekile lamaselula, i-bumper yezimoto nezingxenye zangaphakathi, i-foam ephezulu yokuqina kanye nezinkuni zokwenziwa, njll. Ngenxa yesakhiwo sayo esiyingqayizivele sokubunjwa, i-PMDI inganikeza ukugeleza okungcono.Ngakho-ke, ilungele ikakhulukazi ukukhiqizwa okudinga ukugeleza okuqinile kwezinhlelo.
I-PMDI i-polymer yobunjiniyela esetshenziswa ekuhlanganiseni amagwebu e-polyurethane aqine kakhulu ane-flame retardancy.Ubuthi bemvelo ohlwini lwe-US EPA Toxic Release Inventory List (TRI).
Isetshenziselwa ukwakhiwa kwe-elastomer ye-microporous polyurethane elastomer esebenza kahle kakhulu, ukugqoka kanye negwebu elithambile le-polyurethane elizicwebayo, okuhlanganisa amasoli, amathayi aqinile, izinsimbi zemoto, izinto ezithinta ukushaqeka, amapuleti okuminyanisa, amasondo okuqondisa, imicamelo yekhanda lesihlalo, izindawo zokubeka izingalo, izesekeli zangaphakathi, njll. Ibuye isetshenziswe kabanzi ekwenzeni izinto ezinamathelayo, okokuhlanganisa, ama-prepolymers nama-semi-prepolymers.
Isetshenziswa ekwenzeni amapulasitiki egwebu, izinto zokunamathisela, njll. ezisetshenziswa ekwenzeni izinto ze-polyurethane, ezisetshenziswa kabanzi embonini yezokwakha, embonini yezimoto, embonini kagesi, njengezinto zokufakwa ezishisayo noma okokulala.
I-PMDI ayiguquguquki kakhulu futhi ayinabuthi ekuhogeleni ukuphefumula nasekumunceni isikhumba, kodwa iqukethe amaqembu e-isocyanate (NCO) okulula ukusabela kuwo ngomswakama, lapho izinga lokushisa lempahla lishisiswe libe ngaphezu kuka-40℃ (njengokuncibilika) noma ukusebenza. imvelo ingenawo umoya omncane, izokwandisa ubuthi be-vapor, ngaphezu kokusebenzisa indawo yokwakhiwa kwenqubo yokufafaza, kungaholela ekwandeni kokuhlushwa kwezinhlayiya ezimisiwe emoyeni futhi kubangele ubuthi.Umsebenzi endaweni efanayo kufanele ugqoke imaskhi yegesi kanye ne-respirator, ngaphandle kwalokho, ukuhogela okuphindaphindiwe kokugxilisa kakhulu kwesitimu kuzodala ukungezwani komzimba nokuphefumula.Ngokushesha nje lapho ulithola esikhumbeni noma ngaphakathi kweso, hlambulula ngamanzi bese ugeza isikhumba ngensipho namanzi.Ukupakishwa kwemigqomo yensimbi eyenziwe ngensimbi, umkhiqizo awuguquguquki, ungathuthwa ngokuya ngezinhlinzeko ezifanele zamakhemikhali ajwayelekile.Ngenxa yemvelo yamakhemikhali esebenzayo ye-PMDI, kulula ukusabela ngamanzi ukuze kukhiqizwe amakhompiyutha e-urea angancibiliki futhi kukhishwe i-carbon dioxide, okubangela umgqomo wesigubhu futhi kwandise i-viscosity.Ngakho-ke, ngesikhathi sokugcina, isitsha kufanele sivalwe ngokuqinile futhi sigcwaliswe ngokuvikelwa kwe-nitrogen eyomile.I-PMDI kufanele ibe ekamelweni lokushisa (20 ~ 25 deg C) ekamelweni elinomoya omuhle elivalwe ngokuqinile;Uma izinga lokushisa lokugcina liphansi kakhulu (ngaphansi kuka-5 deg C) lingaholela ekwakhekeni kwe-crystallization phenomenon, ngakho-ke kufanele unake i-antifreeze.Uma i-crystallization yenzekile, kufanele ishiswe futhi inyibilikiswe ku-70-80 ℃ ngaphambi kokusetshenziswa, futhi igoqwe kahle.Kufanele ugweme isitoreji eside ngaphezu kuka-50 ℃, Ukuze ugweme ukwakheka kwezinto eziqinile ezingancibiliki futhi andise i-viscosity.Isikhathi seshelufu se-PMDI unyaka ongu-1 ngaphansi kwezimo ezifanele zokulondoloza.
Izakhiwo zomzimba nezekhemikhali:Uketshezi olukhanyayo olunsundu olunephunga elimnandi.
Impendulo esuka ku Air & Water:Isabela ngamanzi kancane yenze i-scum esindayo futhi ikhulule igesi ye-carbon dioxide.Ingcindezi eyingozi ingakhula uma isiqukathi sivalekile.
Iphrofayela Yokuphinda Isebenze:I-Polymethylene polyphenyl polyisocyanate isabela emanzini kancane yenze i-scum esindayo futhi ikhulule igesi ye-carbon dioxide.Ingcindezi eyingozi ingakhula uma isiqukathi sivalekile.Ukusabela okusekelwe kwesisekelo kwama-isocyanate ane-alcohols kufanele kwenziwe kuma-solvents angenayo.Ukusabela okunjalo lapho zingekho izincibilikisi kuvame ukwenzeka ngodlame oluqhumayo [Wischmeyer 1969].
I-Carcinogen Eyingozi Engabazekayo.
Ingozi Yezempilo:Ukuhogela umoya kubangela ukuphefumula, ukungakhululeki kwesifuba, nokuncipha kokusebenza kwamaphaphu;ukukhwehlela, ukukhwehlela, nesikhwehlela nakho kungase kwenzeke.Ukuthinta uketshezi kucasula amehlo nesikhumba.Ukungeniswa kubangela ukucasuka komlomo nesisu.
Ingozi yomlilo:Ukuziphatha Emlilweni: Iziqukathi zingaqhuma.
Iphrofayela Yokuphepha:Inobuthi obumaphakathi ngokumunca.Ubuthi obuncane ngokuhogela.I-carcinogen engabazekayo enedatha yokuhlola ye-neoplastigenic ngomzila wokufakelwa.Uma ishiselwa ukuze ibole ikhipha intuthu enobuthi ye-NOx.
