Desmodur re / methylidynetri-p-phenyene triisocyanate / Cas 2422-91-5 / isocyanates re
Igama lomkhiqizo:Methylidynetri-p-phenyene triisocyanate / desmodur re umphakeli
Case:24222-91-5
MF:C22h13N3O3
MW:I-367.36
Ama-einec:219-351-8
Ubuningi:I-1.0G / C M3, 20 ℃
Iphuzu lokuncibilika:89 ℃
Iphakheji:I-750 g / ibhodlela, amabhodlela angama-20 aphelele ebhokisini elilodwa lebhokisi lebhokisi, ngo-180kg / umgqomo, noma ngokusho kwesicelo samakhasimende.
I-Desmodur Re yi-ejenti esebenza ngokuxhumeka kakhulu, Isetshenziswe ezinamatheli ezenziwe nge-hydroxyl polyurethane, irabha yemvelo noma yokwenziwa,
Inesibopho esihle kakhulu Amandla enjoloba ne-cab asetshenziswe ku-resin, I-Antioxidant, i-ejenti yeplastiki, ingcindezi-ibucayi njll.
Ingasetshenziswa njenge-crosslinker esikhundleni seBayer's Desmodur re
Ukunamathelisa okunezinhlobo ezimbili kufanele kusetshenziswe esikhathini esisebenzayo ngemuva kokufaka kabusha kabusha.
Ubude besikhathi esisebenzayo abuhlobene kuphela nokuqukethwe kwe-polymer kokunamathela, kepha nezinye izinto ezifanele (njenge-resin, i-antioxygen, ipulasitiki, i-solvent, njll.
Lapho useduze nesikhathi esisebenzayo, imvamisa amahora ambalwa noma usuku olulodwa lokusebenza, ukunamathela kuba nzima ukusebenza, futhi i-viscosity iphakama maduze.
Ekugcineni, iba jelly engenakuphikiswa. Ukunamathela kwekhwalithi eyi-100, i-hydroxyl polyurethane (i-polyurethane i-akhawunti cishe ama-20%), re Dose 4-7. I-Chloroprene Rubber (i-akhawunti yenjoloba cishe ngo-20%), i-Re Do 4-7.
I-Desmodur Re ngokuyinhloko isetshenziswa njenge-hardener noma i-cyarlinker ekwakhekeni okuhlukahlukene kwe-polyurethane. Izicelo zifaka:
1. I-Coatings: I-Desmodur Re ngokuvamile isetshenziswa ekwakhiweni kwezingubo zokusebenza okuphezulu, kufaka phakathi izimbobo zezimboni nezezimoto. Kuthuthukisa ukuqina, ukumelana kwamakhemikhali kanye nokumelana kwesimo sezulu kwezembatho.
2. Ukunamathela: Kusetshenziswe ekukhiqizweni kwezithasiselo ze-polyurethane ukuthuthukisa amandla okubopha kanye nokumelana nezici zezemvelo.
I-3. Ama-sealants: I-Desmodur Re ingasetshenziswa kuma-sealants ukuthuthukisa ukuguquguquka, ukunamathela kanye nomswakama kanye nokumelana kwamakhemikhali.
4. Foam: Kwezinye izimo, ingasetshenziswa ukukhiqiza ukukhiqiza i-polyurethane foam, isiza ukuthuthukisa izakhiwo zayo zemishini nokuqina.
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Uyacelwa ukuthi ugcinwe embizeni yasekuqaleni ebekwe uphawu ngaphansi kwama-23 ℃, imikhiqizo ingalondolozwa izitebele izinyanga eziyi-12.
Kuyazwela kakhulu ekuthini; Kuzokhiqiza i-carbon dioxide ne-urea ye-insoluble ekuphenduleni ngamanzi.
Uma ukuvezwa komoya noma ukukhanya, kuzosheshisa izinguquko zombala, kepha umsebenzi ongokoqobo ngeke uthintwe.
Ukugcina kahle i-desmodur re, landela lezi ziqondiso:
1. Izinga lokushisa: gcina i-desmodur indawo epholile, eyomile. Ukushisa okunconyiwe okunconyiwe kuvame phakathi kuka-15 ° C no-25 ° C (59 ° F no-77 ° F). Gwema ukuvezwa emazingeni okushisa aphezulu.
2. Isitsha: Gcina umkhiqizo esitsheni sokuqala, uvalwe ngokuqinile ukuvikela umswakama ukungena nokungcola. Qiniseka ukuthi isitsha senziwe ngezinto ezihambisanayo ukugwema ukusabela.
I-3. Ukupholisa umoya: gcina endaweni enomoya omuhle ukunciphisa ukunqwabelana kwe-vapor. Gwema ukugcinwa eduze komlilo noma imithombo yokushisa.
I-4. Umswakama: Vikela kumswakama njengoba ama-isocyanates asabela ngamanzi, okuholela ekwakhekeni kwekhabhoni diokside futhi adale isimo esinobungozi.
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I-6 Usuku lokuphelelwa yisikhathi: Bheka izincomo zomkhiqizi zempilo eshalofini kanye nesikhathi sokuphelelwa yisikhathi. Sebenzisa umkhiqizo ngaphakathi kwesikhathi esibekiwe semiphumela emihle.
I-750 g / ibhodlela noma i-50 kg / isigubhu noma i-180 kg / isigubhu noma esekwe kwizidingo zekhasimende.
* Singahlinzeka izinhlobo ezahlukene zokuhamba ngokubheka izimfuno zamakhasimende.
* Lapho inani lincane, singathumela ngendiza noma nge-FedEx, njengeFedEx, DHL, TNT, EMS kanye nemigqa ehlukahlukene yezokuthutha yezokuthutha.
* Lapho ubungako bukhulu, singathumela ngolwandle ukuze baqokwe ethekwini.
* Ngaphandle kwalokho, futhi singanikeza ngezinsizakalo ezikhethekile ngokuya ngezidingo zamakhasimende kanye nemikhiqizo.
Yebo, Desmodur Re, Njengamanye ama-isocyanates, angaba yingozi kubantu uma kungenziwanga kahle. Nawa amanye amaphuzu asemqoka ngemiphumela yawo yezempilo engaba khona:
1. Ukuphefumula: Ukuchayeka kuma-isocyanate Vapors kungacasula uhlelo lokuphefumula futhi kungadala ukuthi kuzwakale izimpikiswano ze-Asthma eziholela ezimpawu ezifana ne-Asthma kwabanye abantu.
2. Ukuxhumana kwesikhumba: I-Desmodur Re kungadala ukucasuka kwesikhumba nokuzwela. Ukuxhumana isikhathi eside noma okuphindaphindiwe kungadala ukusabela kwesikhumba.
3. Ukuxhumana ngamehlo: Kungadala ukucasuka okukhulu kwamehlo nomonakalo. Gqoka amehlo abonayo lapho usingatha lokhu okuqukethwe.
4. Ukungenisa: Ukufakwa kwe-isocyanates kungaba yingozi futhi kufanele kugwenywe.
I-5 Qinisekisa ukuthi indawo yokusebenza inomoya omuhle ukunciphisa ukubonakaliswa.
Lapho uhambisa i-Desmodur re, kufanele kulandelwe izinyathelo ezithile zokuqinisekisa ukuqinisekisa ukuhambisana nokuphepha. Nayi eminye imininingwane ebalulekile okufanele uyinake:
1. Ilebula: Ukuqinisekisa ukuthi iziqukathi zibhalwe kahle ngokwezidingo zolawulo. Amalebula afaka izimpawu eziyingozi kanye nokuphatha imiyalo.
2. Ukupakishwa: Sebenzisa ukufakwa okufanele okuhambelana ne-isocyanate. Isitsha kufanele sivalwe ukuvikela ukuvuza nokuchayeka kumswakama.
3. Ukulawulwa kokushisa: Ukuhamba endaweni elawulwa amazinga okushisa futhi uvikele ukuvezwa kwamazinga okushisa aphezulu, azothinta ukuqina komkhiqizo.
4. Ukupholisa umoya: Qinisekisa ukuthi imoto yezokuthutha inomoya omuhle ukunciphisa ukunqwabelana kwama-vapor.
I-5. Imishini yokuzivikela (i-PPE): Abasebenzi ababambe iqhaza kwezokuhamba kufanele bagqoke i-PPE efanelekile, kufaka phakathi amagilavu, ama-goggles, futhi, uma kunesidingo, ukuvikelwa kokuphefumula.
I-6. Izinqubo eziphuthumayo: jwayelani izinqubo eziphuthumayo uma kwenzeka kuchitheka noma ukuvuza ngesikhathi sokuhamba. Zichithe izinto zokulawula zilungile.
7. Gwema izinto ezingahambelani: Gcina i-desmodur reas kude nezinto ezingahambisani ezifana namanzi, utshwala, ama-acid aqinile noma izisekelo njengoba lokhu kungadala ukusabela okuyingozi.
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Ngemininingwane enemininingwane yokuphepha kokuhambisa kanye nezinyathelo zokuphepha, sicela ubheke ephepheni ledatha yezokuphepha (SDS) yeDesmodur Re.
