I-N,N-dimethyl-1,3-propanediamine (ebizwa ngokuthi i-DMAPA) iyi-diamine ephansi ye-aliphatic enamaqembu ama-amino e-tertiary kanye ne-primary ku-molecule. Iwuketshezi olungenambala nolusobala olunephunga le-ammonia. Iyabhema emoyeni futhi iyancibilika emanzini kanye nasezincibilikisini eziphilayo. Ifomula yayo yama-molecule yi-C5H14N2 kanti ifomula yayo yesakhiwo yi-(CH3)2NCH2CH2CH2NH2.
Ingenye yezinhlobo ezibalulekile zamakhemikhali e-amine anamafutha kanye ne-medium ebalulekile yezinto zokusetshenziswa eziphilayo. Isetshenziswa kabanzi kumakhemikhali ansuku zonke, izibulala-zinambuzane, udayi, ama-resin, njll. Njengamanje, iningi le-DMAPA eShayina lisetshenziswa kakhulu ukulungisa i-betaine kanye ne-amidopropyldimethylamine, ezisetshenziswa emikhiqizweni yamakhemikhali yansuku zonke njenge-shampoo, i-shower gel, i-baby shower gel, i-conditioner, insipho ewuketshezi kanye ne-detergent. Ngaphezu kwalokho, i-DMAPA isetshenziswa futhi njenge-polyurethane catalyst, i-epoxy resin curing agent kanye ne-accelerator, kanye nasekukhiqizweni kwamadayi.

Indlela eyinhloko yokwenziwa kwe-DMAPA yile: 1. Ukusebenzisa i-dimethylamine kanye ne-acrylonitrile njengezinto zokusetshenziswa, i-dimethylaminopropionitrile (DMAPN) itholakala ngokungezwa kukaMichael. Enqubweni yokulungiselela i-DMAPN yezimboni, cishe u-2% wesisindo esiphelele sezinto zokusetshenziswa ngokuvamile ufakwa emanzini ukukhuthaza ukusabela kokwengeza nokususa i-dimethylamine eyeqile azeotropically; 2. I-DMAPN etholakala ngokuhluzwa esinyathelweni sokuqala ifakwa i-hydrogen ngaphansi kwezimo zokucindezela okuphezulu. Ukulungiswa kwe-DMAPA

Esinyathelweni sesibili se-hydrogenation ukulungiselela i-DMAPA, kuzovela ukusabela okungekuhle. Imikhiqizo elandelanayo yalokhu kusabela ikakhulukazi i-amine yesibili i-bis-DMAPA kanye ne-tertiary amine tri-DMAPA. Njengamanje, ukukhiqizwa kwe-DMAPA kwasekhaya kusebenzisa kakhulu ukusabela kwe-kettle, kanti i-hydrogenation catalyst iyi-Raney nickel ephuphu. Ukuze kucindezelwe ukwakheka kwalokhu kukhiqiza okulandelanayo, kuyadingeka ukwengeza u-12%-16% wesisindo se-catalyst se-caustic alkali aqueous solution noma i-ammonia ewuketshezi, i-caustic alkali aqueous solution kanye ne-ammonia ewuketshezi. Ukusetshenziswa kuzokhiqiza inani elikhulu lamanzi amdaka kanye noketshezi olungcolile, okunzima ukuwohloka nokulucubungula, okwandisa umthwalo wokucubungula ngemuva.

Ulwazi lokuxhumana

I-MIT-IVY INDUSTRY CO., LTD

Ipaki Yemboni Yamakhemikhali, 69 Guozhuang Road, Yunlong District, Xuzhou City, Province Jiangsu, China 221100

TEL: 0086- 15252035038 FAX:0086-0516-83769139

WHATSAPP:0086- 15252035038    EMAIL:INFO@MIT-IVY.COM