Pyromellitic DianhydrideCAS2420-87-3: He "Hōiho Pōuri" i te Marae o ngā Rauemi Matū Hou e Aro Ana ki te Ahumahi

I waenganui i te whanaketanga tere o te umanga matū, kua tū mārire te aroaro o te pyromellitic dianhydride (PMDA), he matū nui, ki te aroaro o te marea, e wero ana i te kaha ki te auahatanga o ngā rauemi papai maha, ā, e whakaoho ana i tētahi ngaru hou o te tūhuratanga puta noa i te umanga, te ao mātauranga, me ngā hapori rangahau.

Hei rauemi mata matū waro nui, ahakoa te āhua kāore i te tino kitea te pyromellitic dianhydride i te tirohanga tuatahi, he āhua ahurei ōna āheinga. Mai i te taha whakaputa, he maha ngā umanga matū ā-rohe e kaha ake ana ki te whakapai ake me te whakawhānui i ā rātou raina whakaputa. Kua oti i a [Ingoa Kamupene] Chemical Co., Ltd. te arotakenga me te whakapai ake i te tukanga whakaputa mō te pyromellitic dianhydride. Ka whakamahia e te hangarau hou he pūnaha whakahaere atamai e whakahaere tika ana i ngā tawhā matua pēnei i te pāmahana me te pēhanga tauhohenga. Nā tēnei kua piki ake te parakore o te hua mā te tata ki te 3 ōrau, ā, kua tino whakaitihia te ihirangi paru. Ehara i te mea ka whakarite noa i te pumau o te kounga o ngā hua e whai ake nei, engari ka tino whakapai ake hoki i te pai o te whakaputa, me te pikinga o te putanga mō ia wā neke atu i te 20%, ka hoatu ki te kamupene he painga tuatahi i roto i te mākete whakataetae nui.

I roto i te mara tono, ka tiaho ake te kanapa o te pyromellitic dianhydride. Kei te tūhura tonu ngā rōpū rangahau i tōna pūmanawa ki te whakawhanake i ngā rauemi mahi-teitei. Mō ngā rauemi hiko, ko te matotoru o te kiriata polyimide i hangaia mai i a ia he haurua noa iho i te matotoru o ngā rauemi whakamahana tuku iho, engari ka taea e ia te tu atu i ngā ngaohiko tae atu ki ngā rau volts, he pumau te pūmau dielectric, ā, he pai rawa ngā āhuatanga whakamarara wera, e whakarato ana i te otinga pai ki te raruraru o te whakamahana me te takai i ngā maramara iti, tika i roto i te 5G me ngā taputapu whakawhitiwhiti 6G o muri mai. Kua tutuki i tētahi umanga hangarau hiko matua tētahi mahi tahi rautaki me ngā kaiwhakarato rauemi mata o runga, ā, kua ārahi i te whakamātautau i ngā hua takai maramara kua rite ki te kiriata polyimide hou, e whai ana kia noho ki mua i te whakataetae mō ngā hua hangarau whakawhitiwhiti o te whakatupuranga e whai ake nei.

Kāore hoki te rāngai rererangi e whakaroa ana. Nā te ātete ki te pāmahana teitei me te irahiko o ngā rauemi i hangaia mai i te pyromellitic dianhydride, ka whakamahia ngā kirihou hangarau e tika ana hei hanga i ngā wāhanga tiaki māmā i ngā taha o ngā parirau rererangi. Ki te whakatauritea ki ngā wāhanga whakarewa tuku iho, ka whakaitihia te taumaha mā te neke atu i te 30%, ka whakaitihia te whakapaunga wahie, ā, ka āwhina i ngā waka rererangi kia rere tawhiti ake, kia pumau ake hoki. Heoi anō, ina whakauruhia ngā rauemi i hangaia mai i tēnei matū ki roto i ngā paparanga tiaki o waho o ngā taura motuhake o ngā waka tirotiro mokowhiti, ka taea e rātou te tu atu i te irahiko nui me ngā rerekētanga pāmahana, ka whakarite kia pumau te tuku raraunga i ngā wā uaua o ngā misioni mokowhiti.