Whakakōkī Amine Tauhohe Matatau mō te Polyurethane Iti-Tukunga me tua atu
He whakakorikori amine tauhohe a MXC-DMEA kei roto he rōpū hydroxyl, e whakarite ana i te iti o ngā tukunga i roto i ngā hua PU.
He maha ngā mahi a te MXC-DMEA (N,N-Dimethylethanolamine), he tino parakore (99.00%) waipiro amino. He mahi āwhina kaha hei whakakorikori, he poraka hanga tauhohe hoki, he mea hanga matatau hei whakaiti i ngā tukunga pūngoikore i roto i ngā pahuka polyurethane, ā, hei takawaenga matū nui puta noa i ngā tono ahumahi uaua.
Hanganga Ngota me te Hoahoa Kore-Tukunga
Te hanganga ngota o te MXC-DMEA (CAS 108-01-0) a Ming Xu Chem, he whakakorikori tauhohenga maha-mahi me te kaihoko whakakore.
Ko te hanganga ngota ngota ahurei o MXC-DMEA e aro tika ana ki ngā wero taiao me te haunga e pā ana ki te hanga matū tuku iho:
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Te Hydroxyl Tauhohenga Herea-Polymer:He rōpū hydroxyl (-OH) tino tauhohe tēnei whakakorikori, ā, ka tauhohe matū ki ngā isocyanates ka piri tonu ki te hanganga polymer polyurethane.
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Te Whakaiti i ngā Tukunga VOC:Mā te whakakore i te hekenga o te whakakōkī me te whakaputanga hau, ka tino whakaitihia te kakara amine tino kaha. Mā tēnei āhua "whakauru" ka whakarite kia tutuki ngā hua polyurethane whakamutunga ki ngā paerewa kounga hau o roto me te iti o te tukunga.
Mana Whakakorikori Taurite me ngā Taupānga Pahuka PU
Mō ngā kaihanga hanga polyurethane, ka mahi a MXC-DMEA hei āwhina whakakorikori tino maha ngā mahi, e whakarei ake ana i te hanganga me te kore e whakararu i te haumaru:
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Te Whai Huatanga Whakakorikori Mahi-Rua:He tino whai hua te mahi whakaterenga a te matua amine tuatoru, e taurite ana i ngā kōtaha tauhohenga pupuhi me te whakapūpū i roto i ngā pahuka PU pakari (PUR) me ngā pahuka PU ngāwari.
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Whakaurunga Whakatakotoranga Maeneene:He wai mārama, kāore he tae, ka hanumi pai ki roto i ngā ranunga polyol, e whakarato ana i ngā wā pakari pumau me te pumau o ngā āhuatanga mō ngā hua pahuka whakamutunga.
Te Whānuitanga o ngā Rāngai Matū me ngā Rāngai Ahumahi
Haunga te polyurethane, he nui te hanga o te MXC-DMEA, ā, he nui te uara o tēnei matū hei takawaenga mō ngā rāngai ahumahi maha:
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Te Maimoatanga Wai Matatau me ngā Whakarewa Wai:He matū matū me he monomer nui tēnei mō te whakaputa i ngā matū maimoatanga wai tino whai hua me ngā kapia whakawhiti katote.
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Ngā Paninga me te Whakapakari Epoxy:He mea whakaora pono tēnei mō ngā kapia epoxy, ā, he aukati waikura whai hua hoki, e whakakore ana i ngā wāhanga waikawa i roto i ngā paninga, i ngā tango peita, me te wai kohua ahumahi.
Te Whai Hua o te Tukanga me te Pūmautanga Whakahaere
Ka mau tonu mātou i ngā paerewa hanga pakari hei tiaki i te pono o tō hanganga, hei whakarite hoki i te whakahaere maeneene i roto i ngā āhuarangi o te ao katoa:
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Te Manawanui ki te Āhuarangi Tino Kino:He tino iti te ira tio o tēnei whakakorikori, arā, -59°C, ā, ka noho wai tonu, ka ārai i te whakatiotanga i te wā e rongoa ana i te makariri me te wā e kawe ana i te takurua.
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Teitei o te Parakore kua Whakamanahia:He whakamātautau iti rawa o te 99.00% me te ihirangi wai e tino whakahaeretia ana ($\le 0.20\%$) ka whakamana i te tere o te tauhohenga ka taea te matapae, ka whakakore i te mōrearea o ngā tauhohenga taha kāore e hiahiatia i puta mai i te makuku, i te pirau rānei o te hanganga.
