PTFE, kaulana ʻia ʻo Teflon, ʻaʻole ia he ʻike mākaukau. In 1938, Ua hāʻule ʻo DuPont i kēia mea kupanaha ma muli o ka pōʻino, e hoʻomaka ana i ka hoʻololi ʻana i ka ʻepekema waiwai a me nā noi kalepa.
I kekahi kakahiaka ma 1938, Roy Plunkett, he hale kuai laau opio, e pāʻani ana me kāna mau hoʻokolohua ma kahi kihi o DuPont. ʻIke ʻia kāna hana maʻamau: e imi i ka mea hooluolu hou.
(ʻO Roy a me kāna mau hoa)
Eia naʻe, i ka wā i manaʻo ai ʻo Roy he hana maʻamau, Ua huli nā helu. Ua mālama ʻo ia i ke kinoea tetrafluoroethylene i loko o ka cylinder a ʻōlelo iā ia iho: “ʻAe, a hui hou i ka lā ʻāpopo.” I ka lā aʻe, i kona hoʻi ʻana e hoʻomau i kāna hoʻokolohua, ua ʻike ʻo ia ua nalowale ke kinoea, e waiho ana he puu pauda keokeo. Pono, He ʻokoʻa kēia mai ka palapala āna i hoʻomākaukau ai. E noʻonoʻo i kona ʻano i kēlā manawa: ka hapalua i kaumaha, ka hapalua pākiki. Ma ka hookolokolo hou ana, ua ʻike ʻo ia he mau mana nui ko kēia pauka keʻokeʻo maʻamau: He mea ʻino ia i nā mea kemika a pau, hiki ke noho kupanaha i ka wela loa, a ʻaʻole palekana e like me ka ʻaila. Hikiwawe, Ua ʻike ʻo Luo ʻoiai ʻaʻole ʻo ia e ʻimi i kahi pahu hau hou, ua ʻike maoli ʻo ia i ka mea huna o ka superhero wahi kuke o ka wā e hiki mai ana – pā palai lāʻau ʻole. Mai ia manawa mai, ʻAʻole paʻakikī hou ka palai hua, a ʻo ka hoʻomaʻemaʻe ʻana i nā ipu hao he makani.
ʻOiai ʻaʻole i manaʻo ʻia ka loaʻa ʻana o PTFE, He koʻikoʻi koʻikoʻi nui ia no ka ʻoihana plastik a me nā wahi ʻē aʻe he nui, e like me ka aerospace, nā kaʻa kaʻa, mea uila, a me na mea hana. Hoʻohana nui ʻia ʻo PTFE ma muli o kāna ʻano kemika a me nā waiwai kino – haʻahaʻa haʻahaʻa haʻahaʻa loa, kū'ē i ka wela kiʻekiʻe, palekana kemika, a me ka pili ole. Mai nā lako kīhini a hiki i nā ʻāpana hoʻohui o ka mokulele, Ua hana ʻo PTFE i nā noi akamai he nui. Eia naʻe, ʻoiai ʻo PTFE (Teflon ®) hōʻailona i kahi hoʻomohala hou i ka ʻepekema waiwai, ʻo ia wale nō ka hoʻomaka ʻana o kahi ala lōʻihi a paʻakikī i ka hoʻolaha ʻana a me ka noi nui. ʻAʻole ka ʻimi ʻana i kahi huahana hou wale nō ka pilikia mua, akā no ka ʻike ʻana pehea e loaʻa ai ka hana nui a pehea e hoʻohana ai i nā ʻano hana like ʻole..
ʻAʻole i hoʻomohala piha ʻia nā kaʻina hana o ka monomer synthesis a me ka polymerization hoʻoponopono o PTFE, paʻakikī i ka hana ʻana i ka PTFE i nā mea nui a i ʻole ke ʻano kūpono. ʻOiai ua pono nā hale kūikawā o ka mea i ka hoʻohana hope, Ua hoʻokau pū lākou i nā pilikia nui i ka wā o ke kaʻina hana. ʻAʻole like me nā plastic plastic maʻamau, ʻAʻole hiki ke hoʻoheheʻe ʻia ka PTFE i nā solvents, nā ʻakika, a i ʻole nā kumu a ʻaʻole hoʻohui i kahi wai kahe. aka, ke wela, lilo ia i mea paakiki, gel akaka ʻaʻole heheʻe a neʻe e like me nā plastic.
(Nā ʻŌlelo a Roy: ʻIke ʻia o PTFE)
No ka lanakila ʻana i kēia mau pilikia, ua paʻakikī nā mea noiʻi a me nā mea hoʻolālā e ʻimi i nā kaʻina hana mai nā wahi ʻē aʻe, e like me ka hoʻololi ʻana i nā hoʻolālā mai ke kila a me ka lawelawe keramika. E hana i ka PTFE, ua hoʻohana ʻia kahi hana i kapa ʻia ʻo paste extrusion, i ʻaiʻē ʻia mai ka lawelawe ʻana i ka seramika. ʻOiai ua paʻakikī ka hoʻoheheʻe ʻana a me ka hoʻomohala ʻana i ka PTFE, ua hiki ke hana i na mea PTFE. Na 1947, ua holomua ka noiʻi noiʻi a me ka hoʻokolohua, a ua kūkulu ʻia kahi hale hana liʻiliʻi ma Arlington, New Jersey. Ua ʻike kēia i ka hoʻomaka ʻana o ka huakaʻi ʻo Teflon ® mai ke keʻena noiʻi i ka mākeke. In 1950, Ua wehe ʻo DuPont i kahi mea kanu hou ma Parkersburg, Virginia Komohana, hoʻonui nui i ka hana ʻenehana o Teflon ®. ʻO kēlā makahiki hoʻokahi, Ua hele ka ʻenehana i ka ʻAkelanika i ka wā i kūkulu ai ʻo Imperial Chemical Industries i ka mea kanu PTFE mua loa ma waho o ʻAmelika Hui Pū ʻIa ma UK.
Mea kūʻai aku i ka pauka PTFE
ʻO TRUNNANO ka mea hoʻolako i nā mea paʻi 3D me ka ʻoi aku 12 mau makahiki ʻike i ka mālama ʻana i ka ikehu kūkulu nano a me ka hoʻomohala ʻana i ka nanotechnology. ʻAe ia i ka uku ma o Kāleka Kāleka, T/T, West Union a me Paypal. E hoʻouna aku ʻo Trunnano i nā waiwai i nā mea kūʻai aku ma waho ma o FedEx, DHL, ma ka lewa, a ma ke kai paha. Inā makemake ʻoe e ʻike hou aku e pili ana nā mea hoʻolako pauda ptfe, eʻoluʻolu e leka uila iā mākou a hoʻouna i kahi nīnau.
E nīnau iā mākou