Pentamethyldiethylenetriamine (pmdeta)

Methylene tse hlano tsa ethyleneamine tse tharo ke ntho e thusang haholo bakeng sa karabelo ea polyurethane.Haholo-holo e susumetsa karabelo ea ho phophoma, 'me e boetse e sebelisoa ho leka-lekanya karabelo e akaretsang ea ho foamisa le gel.E sebelisoa haholo ka mefuta eohle ea foam e thata ea polyurethane, ho kenyelletsa le foam e thata ea poleiti ea polyisocyanurate.Ka lebaka la phello e matla ea foam, e ka ntlafatsa ho phalla ha foam, kahoo e ntlafatsa ts'ebetso ea tlhahiso le ho ntlafatsa tlhahiso ea tlhahiso.Hangata e arolelana le DMCHA joalo-joalo.Li-amine tse hlano tsa methyl two ethyleneamine tse tharo li sebelisoa li le mong e le mohloli oa foromo ea foam ea polyurethane, hape e ka arolelanoa le li-catalyst tse ling.0-2.0 likarolo ka likarolo tse 100 tsa polyol.
Ntle le sebopeho se thata sa foam, li-methyl tse peli tsa ethyleneamine tse tharo le tsona li ka sebelisoa ha ho etsoa foam e bonolo ea polyether polyurethane le foam e bopang.Ka mohlala, 70% ea pentamethylenediethylenetriamine e sebelisoa haholo-holo ha ho etsoa lihlahisoa tsa foam tse bonolo.The catalyst e na le ts'ebetso e phahameng, lebelo la ho phophoma ka potlako, boima bo phahameng le bokhoni bo phahameng ba ho jara.Ka foam e bonolo, 0.1-0.5 phr ea catalyst ka 100 phr ea polyether e ka ba le phello e ntle.E ka boela ea sebelisoa e le thuso e thusang bakeng sa foam e thata.
The five methyl two ethyleneamine three amine quaternary ammonium salt ke ntho e liehang ho etsa foam e bonolo, e sebelisoang ho lelefatsa nako ea ho phophoma.E loketse lihlahisoa tsa foam tse nang le sebōpeho se rarahaneng le mokhoa oa ho foam oa mofuta oa lebokose, 'me o ntlafatsa sebopeho sa foam le ho ntlafatsa boleng ba ho bōpa.Mefuta e fapaneng ea litekanyetso tsa eona e pharaletseng haholo, 'me phetoho ea litekanyetso ha e na phello e hlakileng nakong ea ho soeufala;Empa ho eketsa litekanyetso ho ka khutsufatsa nako e ntseng e phahama ea foam le ho khutsufatsa nako ea ho folisa.