Ke noiʻi nei nā kānaka ʻepekema mai Kelemānia a me Netherlands i nā mea hou e pili ana i ke kaiapuniPLAmea waiwai. ʻO ka pahuhopu ka hoʻomohala ʻana i nā mea hoʻomau no nā noi optical e like me nā kukui automotive, nā lens, nā plastic reflective a i ʻole nā alakaʻi māmā. I kēia manawa, hana ʻia kēia mau huahana me ka polycarbonate a i ʻole PMMA.
Makemake nā kānaka ʻepekema e ʻimi i kahi plastic bio-based e hana i nā kukui kaʻa. ʻIke ʻia ʻo ka polylactic acid kahi mea moho kūpono.
Ma o kēia ʻano hana, ua hoʻoponopono nā kānaka ʻepekema i kekahi mau pilikia e kū nei i nā plastics kuʻuna: ʻo ka mea mua, ʻo ka huli ʻana i ko lākou manaʻo i nā kumuwaiwai hou e hiki ke hoʻohaʻahaʻa maikaʻi i ke kaomi ʻana o ka ʻaila ʻaila ma luna o ka ʻoihana plastik; ʻO ka lua, hiki iā ia ke hoʻemi i ka hoʻokuʻu ʻana o carbon dioxide; ʻO ke kolu, pili kēia i ka noʻonoʻo ʻana i ka pōʻaiapuni o ke ola waiwai.
"ʻAʻole wale ka polylactic acid i nā mea maikaʻi ma ke ʻano o ka hoʻomau ʻana, ua loaʻa nō hoʻi nā waiwai optical maikaʻi loa a hiki ke hoʻohana ʻia i ka spectrum ʻike ʻia o nā hawewe electromagnetic," wahi a Dr. Klaus Huber, he loea ma ke Kulanui o Paderborn ma Kelemānia.
I kēia manawa, ʻo kekahi o nā pilikia a ka poʻe ʻepekema e lanakila nei, ʻo ia ka hoʻohana ʻana i ka polylactic acid i nā māla pili LED. ʻIke ʻia ʻo LED ma ke ʻano he kumu kukui maikaʻi a pili i ke kaiapuni. "Ma ke ʻano, ʻo ke ola lawelawe lōʻihi loa a me ka radiation ʻike ʻia, e like me ke kukui polū o nā kukui LED, kau i nā koi kiʻekiʻe ma nā mea optical," wehewehe ʻo Huber. ʻO ia ke kumu e pono ai e hoʻohana i nā mea paʻa loa. ʻO ka pilikia: lilo ka PLA i palupalu ma kahi o 60 degere. Eia nō naʻe, hiki i nā kukui LED ke piʻi i nā mahana e like me ke kiʻekiʻe o 80 degere i ka wā e hana ana.
ʻO kekahi pilikia paʻakikī ʻo ka crystallization o polylactic acid. Hoʻokumu ka polylactic acid i nā crystallites ma kahi o 60 degere, nāna e hoʻopuehu i ka mea. Ua makemake nā kānaka ʻepekema e ʻimi i kahi ala e pale aku ai i kēia crystallization; a i ʻole e hoʻopololei i ke kaʻina hana crystallization - i ʻole e pili ka nui o nā crystallites i hana ʻia i ka mālamalama.
I loko o ke keʻena hana ʻo Paderborn, ua hoʻoholo mua nā ʻepekema i nā waiwai molekala o ka polylactic acid i mea e hoʻololi ai i nā waiwai o ka mea, ʻo ia hoʻi kona ʻano heheʻe a me ka crystallization. Na Huber ke kuleana no ka noiʻi ʻana i ka nui o nā mea hoʻohui, a i ʻole ka ikehu radiation, hiki ke hoʻomaikaʻi i nā waiwai o nā mea. "Ua kūkulu mākou i kahi ʻōnaehana hoʻopuʻi kukui liʻiliʻi liʻiliʻi no kēia e aʻo ai i ka hoʻokumu ʻana i ke aniani a i ʻole ka hoʻoheheʻe ʻana i nā kaʻina hana, nā kaʻina i loaʻa ka hopena nui i ka hana optical," wahi a Huber.
Ma waho aʻe o ka ʻike ʻepekema a me ka ʻenehana, hiki i ka papahana ke hāʻawi i nā pono waiwai nui ma hope o ka hoʻokō. Manaʻo ka hui e hāʻawi i kāna pepa pane mua ma ka hopena o 2022.
Ka manawa hoʻouna: Nov-09-2022