Hanganga Ngota me te Hoahoa Kore-Tukunga
Hanganga ngota o te MXC-T a Ming Xu Chem (CAS 2212-32-0), he amine tauhohe whai hua mō ngā pahuka iti-tukunga.
Mā te hanganga ngota ngota ahurei o MXC-T ka whakatau tika i ngā take haunga me te piki me te heke e pā ana ki ngā whakakorikori rerenga tuku iho:
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Te Hydroxyl Tauhohenga Herea-Polymer:He rōpū mahi hydroxyl (-OH) tino tauhohe tōna, ā, ka tauhohe matū ki ngā isocyanates ka piri tonu ki te whatunga polyurethane polymer.
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Te Whakatutukitanga Pūmau o te VOC Motuka:Mā te whakakore i te putanga hau me te hekenga o te whakakōkī, ka tino whakaitihia te haunga amine noa. Nā tēnei āhua "whakauru" e tino taunakihia ana mō ngā wāhanga motuka e hiahia ana kia piri pono ki ngā paerewa iti-tukunga o te ao pēnei i te VDA 278.
Te Whakaoho Pupuhi Hihiri me te Whakawhanui Huka
He whakakorikori amine wai parakore te MXC-T i hangaia mō te whakamaroke pai me te tauhohenga taurite i roto i ngā pūnaha PU.
Mō ngā kaihanga hanga, ka whakaratohia e MXC-T te mana whakahaere tino pai mō te wāhanga whakawhanui pahuka me ngā painga hanganga tāpiri:
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Tauhohenga Wai-Isocyanate Whaiaro:He tino whai hua te mahi hei whakakorikori pupuhi, e tere ake ai te tauhohenga i waenga i te wai me te isocyanate hei whakaputa$CO_2$te hau kia maeneene, kia ōrite hoki.
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Ka whakatairanga i te hononga whakawhiti polymer:He rerekē tēnei i ngā whakakorikori pupuhi paerewa, ka āwhina anō hoki tōna āhua mahi-rua i te tauhohenga honohono, ka whakapai ake i te hononga whānui o te kirihou pahuka, me te whakarite kia tino pumau te āhua.
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Te Ātete ki te Makuku Teitei:He ahurei, he rite tonu hoki tana mahi ahakoa i roto i ngā whakatakotoranga he nui te wai, ā, he tino whai hua mō ngā pūnaha papa ngohengohe me ngā pūnaha uaua-pūmau.
Te Whai Hua o te Tukanga me te Pūmautanga o te Hanga
Ka arotahi mātou ki te tuku i ngā tawhā tino-parakore e whakarite ana i te whakaurunga pai ki ngā raina whakaputa aunoa me te pupuri i te ōritetanga o te puranga:
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Ngā Āhuatanga Wai Tino Pai:Hei wai mārama me te tino iti te matotoru ($5-7\ mPa \cdot s$), ka whakarite kia māmā te papu, kia tika te ine a te mīhini, ā, kia tino urutau ki ngā pūnaha polyol maha.
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Pūmanawa Tauhohenga Pakari:He nui te uara hydroxyl o$387\ mgKOH/g$, ka whakaratohia he tino whai huatanga tauhohe i ngā horopeta iti, ka whakaiti i te utu hanga whānui.
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Te Haumaru Whakarei Ake o te Wheketere:Mā te pāmahana mura o te 88°C, me te iti iho o te haunga ki te whakaritea ki ngā amine tuku iho, ka whakapai ake i te taiao mahi me te haumaru mō āu kaimahi whakaputa.
