PTFE, yaziwa ngokuba yiTeflon, ibingeyonto ifunyenweyo elungiselelwe. Kwi 1938, I-DuPont yakhubeka kule nto imangalisayo endaweni yengozi, ukuvuselela inguqu kwisayensi yezinto kunye nokusetyenziswa kwezorhwebo.
Ngenye intsasa phakathi 1938, URoy Plunkett, ivenkile eselula yeziyobisi, wayedlala ngokusebenzayo kunye nezilingo zakhe kwikona yeDuPont. Umsebenzi wakhe wabonakala usisiseko: Fumana iarhente yokupholisa entsha kraca.
(URoy kunye noogxa bakhe)
Nangona kunjalo, xa uRoy wayekholelwa ukuba yayingumsebenzi nje wesiqhelo, amanqaku athatha ithuba. Wagcina igesi ye-tetrafluoroethylene kwicylinder waza wathi kuye ngokwakhe: “Kulungile, bdizokubona ngomso.” Ngosuku olulandelayo, xa ebuya ukuze aqhubeke novavanyo lwakhe, wafumanisa ukuba igesi yaphela ngendlela engaqondakaliyo, kushiya nje imfumba yomgubo omhlophe. Kulungile, oku ngokuqinisekileyo kwahluka kwiskripthi asilungiselele. Yiba nomfanekiso ngqondweni wakhe ngelo xesha: isiqingatha esonganyelwe, unomdla ophakathi. Emva kovavanyo olongezelelweyo, wafumanisa ukuba lo mgubo umhlophe ungaqhelekanga wawunamandla amakhulu anefashoni: yayichasa phantse yonke imichiza, inokuhlala imangalisa kumaqondo obushushu agqithisileyo, kwaye yayingakhuselekanga njengeoli. Ngoko nangoko, ULuo wayibona loo nto ngoxa wayengekayifumani ifriji entsha kraca, waye wafumanisa ngengozi icandelo eliyimfihlo lendawo yokupheka iqhawe elikhulu lekamva – iipani zokuqhotsa ezinganamatheli. Ukususela ngoko, ukuqhotsa amaqanda kwakungaseyongxaki, neembiza zokucoca kwatsho kwabetha umoya.
Nangona ukufunyanwa kwe-PTFE kwakungeyonjongo, ibinokubaluleka okukhulu okutsha kushishino lweplastiki nakwezinye iindawo ezininzi, ezifana ne-aerospace, iimoto, izixhobo zombane, kunye nezixhobo zombane. I-PTFE isetyenziswa kakhulu ngenxa yohlobo lwayo lwekhemikhali kunye neempawu ezibonakalayo – i-coefficient yokhuhlane ephantsi kakhulu, ukumelana nobushushu obuphezulu, ukhuseleko lwekhemikhali, kunye nokungancamatheli. Ukusuka kwimpahla yasekhitshini ukuya kwiindawo ezidityanisiweyo zesiphekepheke, I-PTFE yenze izicelo ezininzi ezikrelekrele ukuba zenzeke. Nangona kunjalo ngelixa i-PTFE (Teflon ®) kuphawulwe uphuhliso olutsha kwinzululwazi yemathiriyeli, yayisisiqalo nje sendlela ende nenzima yokurhweba kunye nokusetyenziswa okubanzi. Umqobo wokuqala ibingekokufumana nje imveliso entsha kodwa ukongezelela kukufumana indlela yokufikelela kwimveliso enkulu kunye nendlela yokuyisebenzisa kwiinkalo ezahlukeneyo..
Iinkqubo ze-monomer synthesis kunye ne-polymerization elawulwayo ye-PTFE ayizange iphuhliswe ngokupheleleyo, ukwenza kube nzima ukwenza i-PTFE ngobuninzi okanye ifashoni esebenzayo. Ngelixa izakhiwo ezikhethekileyo zezinto eziphathekayo zaziluncedo kwisicelo sokugqibela, kananjalo babeke imiqobo emininzi ngexesha lenkqubo yemveliso. Ngokungafaniyo nezinye iiplastiki eziqhelekileyo, I-PTFE ayinyibiliki kwizinyibilikisi, iiasidi, okanye iziseko kwaye ayidibanisi ulwelo oluqukuqelayo. Endaweni yoko, xa ishushu, iba nzima, ijeli ecacileyo enganyibilikiyo kwaye ihamba njengeplastiki.
(Amanqaku kaRoy: Ukufunyanwa kwe-PTFE)
Ukoyisa le mingeni, abaphandi kunye nabayili babenexesha elinzima lokufumana iinkqubo ezivela kwezinye iindawo ezahlukeneyo, ezifana nokulungelelanisa izicwangciso ezivela kwintsimbi kunye nokuphathwa kwe-ceramic. Ukubumba i-PTFE, inkqubo ebizwa ngokuba yi coma extrusion yasetyenziswa, eyayibolekwe kwi-ceramic handling. Nangona ukubumba okuqhelekileyo kunye nokuphuhlisa ubuchule babenobunzima bokucoca i-PTFE, kwakunokwenzeka ukuvelisa amacandelo e-PTFE. Ngu 1947, uphononongo olubanzi lophando kunye novavanyo luye lwaphumelela, kunye nendawo yemveliso encinci yaphuhliswa e-Arlington, Enew Jersey. Oku kuphawule ukuqala kohambo lweTeflon ® ukusuka kwibhubhoratri yophando ukuya kwiimarike. Kwi 1950, IDuPont ivule umzi-mveliso omtsha eParkersburg, West Virginia, ukwandisa kakhulu ukuveliswa kwemveliso yeTeflon ®. Kwangaloo nyaka kanye, itekhnoloji yawela iAtlantiki xa i-Imperial Chemical Industries yakha isityalo sokuqala se-PTFE ngaphandle kwe-United States e-UK..
Umthengisi we-PTFE Powder
I-TRUNNO ngumboneleli we-3D Printing Materials ene-over 12 iminyaka yamava kwi-nano-building energy yogcino kunye nophuhliso lwe-nanotechnology. Iyayamkela intlawulo ngekhadi letyala, T/T, I-West Union kunye ne-Paypal. I-Trunnano iya kuthumela iimpahla kubathengi phesheya ngokusebenzisa i-FedEx, DHL, ngomoya, okanye ngolwandle. Ukuba ufuna ukwazi ngakumbi malunga ababoneleli ngomgubo ptfe, nceda uzive ukhululekile ukuqhagamshelana nathi kwaye uthumele umbuzo.
Sibuze