Pentamethyldiethylenetriamine (pmdeta)

Ko te rima methyl two ethyleneamine toru he whakakōkī tino tauhohenga mō te tauhohenga polyurethane.Ko te nuinga ka whakakorikori i te tauhohenga pahuka, ka whakamahia hoki ki te whakataurite i te hohenga pahuka me te reera.Kei te whakamahia nuitia i roto i nga momo polyurethane maataki pahuka, tae atu ki te polyisocyanurate pereti pahuka.Na te kaha o te kaha o te pupuhi, ka taea e ia te whakapai ake i te rere o te pahuka, na reira ka pai ake te mahi whakaputa me te whakapai ake i te rahi o te whakaputa.He maha nga wa ka tohatoha ki a DMCHA me etahi atu.Ko te rima methyl two ethyleneamine e toru amine ka whakamahia anake hei whakakorikori mo te tauira polyurethane foam, ka taea hoki te tiri ki etahi atu whakakorikori.0-2.0 nga wahanga mo ia 100 nga wahanga polyol.
I tua atu i te hanga pahuka i te pakari, ka taea hoki te whakamahi e rima methyl two ethyleneamine e toru ki te hanga i te polyether polyurethane polyurethane polyether foam me te whakakikorua i te pahuka.Hei tauira, ko te 70% o te pentamethylenediethylenetriamine te nuinga e whakamahia ana i roto i te hanga o nga hua pahuka ngohengohe.Ko te whakakorikori he mahi nui, he tere te hukahuka, he uaua teitei me te kaha o te kawe.I roto i te pahuka i ngawari, 0.1-0.5 phr o te whakakorikori ia 100 phr o te polyether ka pai ake te painga.Ka taea hoki te whakamahi hei whakakorikori awhina mo te pahuka i te pakeke.
Ko te rima methyl two ethyleneamine e toru amine te tote haukinia quaternary he whakakōkī whakaroa mo te pahuka i te ngohengohe, e whakamahia ana ki te whakaroa i te wa pahuka.He mea pai mo nga hua pahuka me te ahua uaua me te momo pouaka momo mahi pahuka, me te whakapai ake i te hanganga o te pahuka me te whakapai ake i te kounga whakakikorua.Ko te whānuitanga o tona ake inenga he tino whanui, a, ko te huringa o te inenga kaore he tino paanga ki te wa ma;Engari ko te whakanui ake i te inenga ka taea te whakapoto i te pikinga o te pahuka me te whakapoto i te wa whakaora.