Mai i te whānautanga o te ao tangata, ko ngā rauemi te pūtake rauemi mō te whanaketanga me te ahunga whakamua o te hapori. Ko ngā rauemi hanganga pēnei i ngā konganuku, ngā uku me ngā pūmua te mea e whakamahia whānuitia ana o ngā rauemi katoa o nāianei. I ngā tau tata nei, kua nui haere te aro ki te whanaketanga o ngā rauemi mahi-teitei me te kore e whakamahia ngātahitia (pēnei i te kaha me te pakari), inā koa ko ngā rauemi hanga i runga i te tauine nanometa.

Nō nā tata nei, kua angitu te tīma o te tohunga mātauranga a Yu Shuhong o te Whare Wānanga o te Pūtaiao me te Hangarau o Haina ki te whakawhanake i tētahi rauemi hanganga koiora-teitei (CNFP) nano-cellulose. He tino pai ngā āhuatanga whānui o tēnei rauemi, ko tōna mātotoru he kotahi-ono noa iho i te mātotoru o te maitai, ā, he nui ake te kaha motuhake me te pakari motuhake i ngā rauemi koranu tuku iho, ngā uku me ngā kirihou hangarau.

Ko te cellulose tētahi o ngā mea rauropi taiao tino nui o te ao. Ka taea e te miro, te hāmi, te kakau witi, te kakau witi, te bagase, me ētahi atu, te whakarato i te cellulose. Nō reira, ko ngā puna koiora whānui te pūtake pumau mō tēnei rauemi.

I whakaputaina ngā hua i te 1 o Mei i roto i te puka Science Advances (Science Advances 2020) hei "Ngā rauemi hanganga papatipu i ahu mai i te cellulose nanofiber māmā, pakari, me te pumau me te tauwehenga whakawhānui wera iti." 6, eaaz1114).

I kitea ko ngā āhuatanga mama, kaha teitei, me te pakari o te CNFP i ahu mai i te hoahoa o te hanganga paparanga tauine-micron me te hanganga whatunga toru-ahu nanometer. Ka taea e ngā muka nano cellulose tino tioata o roto te whakarato i te kaha tino teitei, mā te maha o ngā hononga hauwai i waenga i ngā muka pēnei i ngā whatunga taunekeneke hurihuri, i raro i te kaha o waho i roto i te kiato teitei o te whatunga taunekeneke hurihuri ka taea te tere te wehewehe me te whakahou, te mimiti i te nui o te kaha, te hanga rauemi he kaha teitei me te pakari teitei, ka hinga i ngā rauemi hanganga tuku iho me te kaha teitei me te pakari teitei o te raruraru uaua.

Ko tōna pumau tauine me te ātete pānga wera e whakaaturia ana penei: i roto i te awhe pāmahana mai i te -120°C ki te 150°C, ko te tauwehenga o te whakawhānui wera he iti iho i te 5 × 10-6 k-1. Ara, ahakoa ka eke te piki me te heke o te pāmahana ki te 100℃, ko tōna rahi rerekētanga kei roto i te 10,000 i roto i te rima, ko te haurima noa iho o te koranu konumohe rererangi, te kirihou hangarau tekau o te a, tata ki te uku. Heoi anō, ko ōna āhuatanga miihini me ōna inenga he tino pumau tonu i raro i ngā whakamātautau huringa ru wera nui i waenga i te 120℃ me te -196℃.

I taua wā anō, he nui te ātete pānga, he nui te manawanui ki te kino, ā, he nui te mahi mimiti pūngao o te CNFP, e matapaetia ana ka taea te whakamahi hei whakakapi mō te koranu. E whakaatu ana ngā hua whakamātautau pānga tere-tino teitei o te pae pēhanga hopkinson wehea i raro i te pānga tere-teitei o te 28 m · s-1 (he rite te tere ki te tere o te motuka tere-teitei), e whakaatu ana i te kaha kōpeketanga tino-teitei o te 1600MPa, ā, ka taea te mimiti i te pūngao pānga tae atu ki te 387.5mj · m-3 i roto i te 0.07 ms. Ko te take nui o tēnei nā te mea ka paheke tōna whatunga muka nano-ahu-toru i te wā e pāngia ana e te pānga tere-teitei, ā, he maha ngā hononga hauwai i waenga i ngā muka nano ka tere te wehe me te hanga anō, ka taea te mimiti me te huri i te pūngao nekeneke pānga ki te wera.

Nō reira, ko te rauemi hanganga bionic hou o ngā muka nano taiao pumau, ko ngā whakaurunga ko te Gao Qiangren māmā, te pumau o ngā āhuatanga me te ru wera, te ātete ki te pānga, me ngā āhuatanga pai rawa atu pēnei i te manawanui kino teitei, e tika ana kia whānuitia ngā tono mō te tiaki ru me te rauemi urunga, ngā rauemi wāhi, ngā wāhanga taputapu tika, me ētahi atu mara.