I te whanaketanga o te hapori tangata, kei te piki haere te hiahia mō ngā hua kirihou i roto i te oranga o ia rā o te tangata, pērā i ngā putea kirihou, ngā paepae kirihou, ngā pouaka tina kirihou me ērā atu mea. I taua wā tonu, kua piki ake te hiahia mō ngā hua kirihou nā te tipu ake o te umanga tuku kai. He nui hoki te pānga o te hiahia ki tō tātou taiao, nā te mea he tino kino ngā hua kirihou ki te taiao.
I te aroaro o ngā raruraru taiao e piki haere ana te kino, kua noho te rapu huarahi kē atu i te kirihou hei whakakapi i te kirihou hei mea hou puta noa i te ao. Whai muri i te rangahau me te whakapai tonu, kua piki haere ngā hua PLA ki te atamira o te hītori. Ko te mahi a ngā hua PLA he whakaiti i te kounga, ka taea te whakaiti katoa i roto i ngā rā 90 i te pāmahana me te taiao e tika ana. I taua wā anō, he roa te ora o te whakamahinga, he pai te tiaki, ka taea te penapena i te paepae PLA me te ipu PLA me ētahi atu hua mō te neke atu i te kotahi tau.
Ngā Paepae me ngā Ipu PLA Hou e Pai Ana ki te Taiao, e Pirau Ana mō te Tākai Kai Mīti Hua
He pai te pumau o te waiora Poly (waikawa lactic), te pāmahana tukatuka 170 ~ 230℃, te ātete pai ki te whakarewa, ka taea te tukatuka i roto i ngā momo huarahi, pēnei i te extrusion, te miro, te totoro biaxial, te werohanga pupuhi. Haunga te pirau-koiora, he pai te hototahitanga koiora, te kanapa, te mārama, te pa ki te ringa me te ātete wera o ngā hua waikawa polylactic.
Ko te waikawa Polylactic (PLA) he rauemi pirau hou i hangaia mai i te māngaro i ahu mai i ngā rauemi tipu hou pēnei i te kānga. I whiwhihia te hukahuka mai i te māngaro mā te whakapūkara, kātahi ka whakapūkarahia te waikawa lactic me te tino parakore mai i te hukahuka me ētahi momo, kātahi ka hangaia te waikawa polylactic me te taumaha ngota motuhake mā te hanga matū. He pai te pirau, ā, ka taea te pirau katoa e ngā moroiti i roto i te taiao i muri i te whakamahinga, ā, i te mutunga ka puta he hauhā me te wai. Kāore e whakapoke i te taiao, he tino painga ki te tiaki i te taiao, ā, e mōhiotia ana he rauemi hoa taiao. Ko te tikanga maimoatanga kirihou noa ko te tahunga tonu, ka hua ake he nui te hau kati kōtuhi ka tukuna ki te rangi, i te mea ka tanumia te kirihou waikawa POlylactic ki roto i te pirau oneone, ka uru tika te hauhā waro ki roto i te oneone, ka mimitihia rānei e ngā tipu, kāore e tukuna ki te rangi, kāore e puta te pānga kati kōtuhi.
He painga motuhake tō te poly (waikawa lactic) i roto i te ao o ngā taputapu whakakorekore, ngā rauemi takai kai me ētahi atu hua whakakorekore nā te mea kāore e pā kino ki te tinana tangata. Ka taea te pirau katoa, ā, ka tutuki i ngā whakaritenga teitei o te ao, inā koa te Kotahitanga o Ūropi, te Hononga o Amerika me Hapani mō te tiaki taiao. Hei tāpiri, whai muri i te whanaketanga hangarau, kua whakarerekētia te mākete e ngā rauemi PLA, ka taea te whakakore i ngā ngoikoretanga o te matūriki taketake, ā, ko ētahi he ātete wera ki te pāmahana tae atu ki te 120℃, ka taea te whakamahi hei rauemi taputapu oumu ngaruiti.
Heoi, i runga i te mākete o nāianei, kāore e taea te whakataurite i te kaha o te whakamahana me te hou o ngā hua PLA ki ētahi atu hua pirau, engari he nui ake te utu o ngā hua PLA i ētahi atu hua pirau. He tokomaha te hunga e whiriwhiri ana i te bagasse hei hua pirau-koiora, engari ka mimiti te bagasse i te hinu, ka mimiti i te wai, ā, ka pā ki ngā hua kua tākaihia. Waihoki, ka taea e ngā papa bagasse te pokepokea mēnā kāore i te maroke rawa.
Wā tuku: Hanuere-12-2022