Amathangi avundlile afakweIshidi le-PTFEs ayisisombululo esiphambili nesithembekile sokugcina amakhemikhali agqwalayo namazinga okushisa aphezulu.Ishidi le-PTFE limele i-polytetrafluoroethylene, evame ukusetshenziswa ezilungiselelweni zezimboni ngenxa yezakhiwo zayo eziyingqayizivele namandla.Kulesi sihloko, sixoxa ngezici zamathangi okugcina avundlile afakwe amashidi e-PTFE nokuthi kungani kubalulekile ezimbonini ezihlukahlukene.
Okokuqala, amashidi e-PTFE amelana kakhulu nokugqwala nokulimala kwamakhemikhali.Lesi sici siyenza ilungele ukugcina amakhemikhali agqwala kakhulu njenge-hydrochloric ne-sulfuric acid.Ngenxa yokuthi i-PTFE ayisebenzi kakhulu, ayisabelani nalawa makhemikhali, iqinisekisa impilo ende nobuqotho bethangi.
Okwesibili, amashidi e-PTFE anokuqina okuhle kakhulu kwe-thermal.Iyakwazi ukumelana namazinga okushisa afinyelela ku-260°C, ngakho-ke ingasetshenziswa ukugcina amakhemikhali adinga izimo zokushisa eziphakeme.Ukwengeza, ishidi le-PTFE lingakwazi ukumelana nokuhamba ngebhayisikili okushisayo, okusho ukuthi lingakwazi ukuya emuva naphambili phakathi kwamazinga okushisa aphezulu naphansi ngaphandle kokuqhekeka noma ukulahlekelwa ubuqotho balo.
Amathangi avundlile afakweIshidi le-PTFEs futhi inezinye izici zomkhiqizo.Ithangi litholakala ngamasayizi angokwezifiso ukuze lihlangabezane nezidingo ezithile zesitoreji.Ukuhlukaniswa kwezinga lokushisa kwalo kusuka kumazinga okushisa aphezulu kuya kwezinga lokushisa eliphansi.Isilinganiso sayo sepayipi lezinga eliphezulu lokushisa i-MPa siphakathi kuka -0.09 MPa no-2.5 MPa.Izinto ezisetshenziswa ukwakha leli thangi yi-PTFE kanye ne-CS/SS steel enezela ukuqina namandla ayo.Ngaphezu kwalokho, ihambisana namazinga ahlukahlukene aphesheya nawemboni afana ne-ASTM, GB, DIN kanye ne-JIS.
Enye yezinzuzo zamathangi okugcina avundlile ahlanganiswe namashidi e-PTFE izindleko zawo zokulungisa eziphansi.Ithangi lidinga ukulungiswa okuncane, okwenza libe yisinqumo esihle kakhulu ezimbonini ezifuna isisombululo sesikhathi eside sokugcina.Akukhona nje kuphela ukuthi imelana nokugqwala nokulimala kwamakhemikhali, kodwa futhi idinga ukunakwa nokugcinwa okuncane.
Sengiphetha, ukubaluleka kwamathangi Avundlile ahambisana nawoIshidi le-PTFEs ayikwazi ukubukelwa phansi.Leli thangi lesimanje liyisixazululo esiqinile nesithembekile sokugcina amakhemikhali agqwala kakhulu nezinto zokushisa okuphezulu.Ibonisa ukuzinza okuhle kakhulu kwe-thermal, okuyenza ifaneleke ezindaweni ezihlukahlukene zezimboni.Izindleko zayo eziphansi zokunakekela ziqinisekisa ukuphila okude nokusimama, okwenza kube ukutshalwa kwezimali okuhle kakhulu kwamabhizinisi afuna isixazululo sesikhathi eside sokulondoloza.
Isikhathi sokuthumela: Aug-11-2023