I ētahi rā kua pahure ake nei, i whakaputa te Ahorangi o te Whare Wānanga o Washington, a Aniruddh Vashisth, i tētahi tuhinga i roto i te hautaka mana o te ao, arā, ko Carbon, e kī ana kua angitu tana whakawhanake i tētahi momo rauemi hiato muka waro hou. He rerekē ki te CFRP tuku iho, kāore e taea te whakatika ina pakaru, engari ka taea te whakatika i ngā rauemi hou i ngā wā maha.
Ahakoa e mau tonu ana ngā āhuatanga ā-pūkaha o ngā rauemi tuku iho, ka tāpirihia e te CFRP hou tētahi painga hou, arā, ka taea te whakatika i ngā wā katoa i raro i te mahi a te wera. Ka taea e te wera te whakatika i ngā pakaru ngenge o te rauemi, ā, ka taea hoki te whakamahi hei wawahi i te rauemi ina hiahiatia kia hangarua i te mutunga o te huringa ratonga. Nā te mea kāore e taea te hangarua i te CFRP tuku iho, he mea nui kia whakawhanakehia he rauemi hou ka taea te hangarua, te whakatika rānei mā te whakamahi i te pūngao wera, te whakamahana auau reo irirangi rānei.
I kī a Ahorangi Vashisth ka taea e te pūtake wera te whakaroa i te tukanga tawhito o te CFRP hou mō te wā roa. Ko te tikanga, me kī tēnei rauemi he Waro Fiber Reinforced Vitrimers (vCFRP, Carbon Fiber Reinforced Vitrimers). Ko te polymer karāhe (Vitrimers) he momo rauemi polymer hou e whakakotahi ana i ngā painga o ngā kirihou thermoplastic me te thermosetting i hangaia e te kaipūtaiao Wīwī, a Ahorangi Ludwik Leibler i te tau 2011. Ka whakamahia e te rauemi Vitrimers te tikanga whakawhiti hononga hihiri, ka taea te mahi i te whakawhiti hononga matū hurihuri i roto i te huarahi hihiri ina werahia, ā, i te wa ano ka mau tonu te hanganga honohono-whiti katoa, kia taea ai e ngā polymer thermosetting te whakaora-ake me te tukatuka anō pērā i ngā polymer thermoplastic.
He rerekē, ko ngā rauemi hiato muka waro e mōhiotia whānuitia ana ko ngā rauemi hiato kapia whakakaha muka waro (CFRP), ka taea te wehewehe kia rua ngā momo: te thermoset, te thermoplastic rānei i runga i te hanganga kapia rerekē. Ko ngā rauemi hiato thermosetting he maha ngā wā kei roto te kapia epoxy, ko ngā hononga matū ka taea te whakakotahi i te rauemi ki te tinana kotahi. Kei roto i ngā hiato thermoplastic he kapia thermoplastic ngohengohe ka taea te whakarewa me te tukatuka anō, engari ka pā kino tēnei ki te kaha me te pakari o te rauemi.
Ka taea te hono, te momotu, me te hono anō i ngā hononga matū i roto i te vCFRP kia whiwhi ai i te "waenganui" i waenga i ngā rauemi thermoset me ngā rauemi thermoplastic. E whakapono ana ngā kairangahau kaupapa ka taea e ngā Vitrimers te whakakapi i ngā kapia thermosetting me te karo i te kohikohinga o ngā hiato thermosetting i roto i ngā whenua ururua. E whakapono ana ngā kairangahau ka huri te vCFRP hei nekehanga nui mai i ngā rauemi tuku iho ki ngā rauemi hihiri, ā, ka pāngia e te maha o ngā pānga e pā ana ki te utu, te pono, te haumaru, me te tiaki i te huringa ora katoa.
I tēnei wā, ko ngā mata o ngā tāhū hau tētahi o ngā wāhi e nui ana te whakamahi i te CFRP, ā, ko te whakaora i ngā mata he raruraru tonu i tēnei mara. I muri i te paunga o te wā ratonga, e mano tini ngā mata kua reti i makahia ki te whenua ururua hei whenua ururua, ā, he pānga nui tēnei ki te taiao.
Mena ka taea te whakamahi i te vCFRP mō te hanga mata, ka taea te hangarua me te whakamahi anō mā te whakamahana noa. Ahakoa kāore e taea te whakatika me te whakamahi anō i te mata kua rongoatia, ka taea te pirau i te wera. Ka hurihia e te rauemi hou te huringa ora raina o ngā hiato thermoset hei huringa ora hurihuri, ka waiho hei taahiraa nui ki te whanaketanga pumau.
Mena ka taea te whakamahi i te vCFRP mō te hanga mata, ka taea te hangarua me te whakamahi anō mā te whakamahana noa. Ahakoa kāore e taea te whakatika me te whakamahi anō i te mata kua rongoatia, ka taea te pirau i te wera. Ka hurihia e te rauemi hou te huringa ora raina o ngā hiato thermoset hei huringa ora hurihuri, ka waiho hei taahiraa nui ki te whanaketanga pumau.
Wā tuku: Whiringa-ā-rangi-09-2021
