4,4′-Methylenebis(2-ethyl-6-methylaniline) / MMEA CAS No. 19900-72-2

Incazelo emfushane:

Igama Lekhemikhali: 4,4′-Methylenebis(2-ethyl-6-methylaniline)

Amagama afanayo: 4,4′-Methylenebis(2-ethyl-6-methylaniline); Bis(4-amino-3-ethyl-5-methylphenyl)methane 4,4′-Diamino-3,3′-diethyl-5,5′-dimethyldiphenylmethane; Curehard-Med; 4,4′-Methylene-Bis(2-Methyl-ethylaniline)

Ikhodi: MMEA

Inombolo ye-CAS: 19900-72-2

Sithumelele i-imeyili

Imininingwane Yomkhiqizo

Amathegi Omkhiqizo

Incazelo Yomkhiqizo

I-4,4'-Methylenebis(2-ethyl-6-methylaniline) / MMEA, inombolo ye-CAS 19900-72-2, isetshenziswa njengesandisi seketanga lama-elastomer e-polyurethane kanye ne-ejenti yokwelapha i-epoxy resin ukuthuthukisa izakhiwo zemishini neziguquguqukayo zemikhiqizo. I-MED ingasetshenziswa futhi njengenhlanganisela ehamba phambili yama-polyimides kanye nokuxhumana kokwenziwa kwezinto eziphilayo.

Ifaneleka kahle ekubunjweni kwe-polyurethane (CPU), i-thermoplastic polyurethane (TPU), ama-RIM elastomers kanye ne-spray polyurea ensimini ye-polyurethane. I-MED iyasebenza futhi ekucubungulweni, ekulungisweni nasekufakweni kwamakhemikhali okulwa nokugqwala ensimini ye-epoxy resin. I-MED isetshenziswa ekuhlanganisweni kwama-prepolymers, kufaka phakathi i-polyether kanye ne-polyester.

I-MED iyisisombululo esifanele semikhiqizo eqediwe efuna umbala okhanyayo kanye nokulwa nokuguga. I-MED ingasetshenziswa nezinye izinto zokwelapha zohlobo lwe-amine (inhlanganisela) ukuze kuhlangatshezwane nezakhiwo zomzimba ezingcono.

I-MED ne-MOCA zombili ziyizinto zokwelapha zohlobo lwe-amine. Kodwa-ke, i-MED inobungani nemvelo futhi ayingcolisi kangako uma iqhathaniswa ne-MOCA. I-MED ingaphinde ithathe indawo ye-MBOEA ne-HQEE emikhiqizweni ye-PU, kungakhathaliseki ukuthi i-CPU (i-casting polyurethane) noma i-TPU (i-thermoplastic polyurethane). Ngokufanayo ne-MOCA, ama-elastomer ohlobo lwe-MED anezici ezinhle kakhulu zokumelana nokushisa ezidinga ukusebenza ngaphezu kuka-120℃.

Isicelo

I-MED/MMEA iyi-aromatic diamine chain extender kanye ne-ejenti yokwelapha. Ngenxa yemithetho eqinile yokusebenzisa i-MOCA, i-MED enobungani nemvelo, engangcoliswanga iyindlela engcono kakhulu esetshenziswa ezinhlotsheni ezahlukene zokusebenza. Ama-polyurethane e-MED-base ayakwazi ukuguquguquka futhi akhululekile ukuklama, anezakhiwo ezinamandla aphezulu ngenkathi egcina ukuqina kwawo. Imikhiqizo eqediwe yohlobo lwe-MED ihlala isikhathi eside futhi imelana nokumelana okwenza ifaneleke kahle ezinhlotsheni ezidinga amandla, njenge-bumper pads, ama-caster, ama-rollers, amathayi e-forklift, izingxenye zomshini njalo njalo. Ngaphezu kwalokho, i-MED ingasetshenziswa futhi njenge-ejenti yebhuloho ku-semi-conductor kanye ne-ejenti yokwelapha ku-epoxy kanye ne-polyurea.

Ukupakisha Nokugcina Izinto

Ku-4,4'-Methylenebis (2-ethyl-6-methylaniline) / MMEA emhlabeni jikelele. Umkhiqizo wethu waminyaka yonke ungamathani angu-400 metric.

Ukupakisha: 180kgs/isikhwama; 300kgs/isikhwama, 18kgs/isikhwama

Ukugcina Nokuthutha: Gcina endaweni enomoya omuhle. Njengoba lo mkhiqizo une-hygroscopicity encane, sicela ugweme ukuthintana namanzi futhi ugweme ukukhanya kwelanga. Vala isitsha ngokuqinile ngemva kokusebenzisa. Okwamanje, asikwazi ukugcinwa nama-oxidants.

Isikhathi sokuphila: izinyanga eziyi-12

Imininingwane

Igama lekhemikhali	4,4'-Methylene-bis(2-methyl-6-ethylaniline)
Inombolo ye-CAS	19900-72-2
Ifomula yama-molecule	C19H26N2
Isisindo sama-molecule	282.4231
Ubuningi	1.039 g/cm3
Iphuzu lokuhlangana	85°C
Indawo yokubilisa	443.1°C ku-760 mmHg
Isisindo esithile	1.44 (okuqinile) ku-24℃
Iphoyinti lokuphazima	266°C
Ukubukeka	Impuphu emhlophe
Umswakama	Ngaphansi kuka-0.3%
Inani le-Amine	390-408 KOH mg/g
Izinto ezingancibiliki ku-acetone	Akukho
I-chlorine ephelele	Ngaphansi kwe-10 ppm
Ubumsulwa	98.0%
Ukusetshenziswa okuyinhloko	I-ejenti yokwelapha ye-polyurethane, i-ejenti yokwelapha ye-epoxy resin, i-chain extender
Umfutho womusi	4.75E-08mmHg ku-25°C

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