I-monomer ye-PTFE yi-tetrafluoroethylene (TFE), futhi indawo yayo yokubilisa ingu -76.3 degrees Celsius.Iqhuma kakhulu lapho kukhona umoya-mpilo futhi ingafaniswa nesibhamu.Ngakho-ke, ukukhiqizwa kwayo, ukugcinwa nokusetshenziswa kwayo embonini kudinga ukuvikelwa okuqinile kakhulu, okukhiphayo nakho kudinga ukulawulwa, okubuye kube omunye wemithombo eyinhloko yezindleko ze-PTFE.I-TFE ivamise ukusebenzisa i-polymerization yamahhala ye-radical suspension embonini, isebenzisa i-persulfate njenge-initiator, izinga lokushisa lokusabela lingaba phakathi kuka-10-110 degrees Celsius, le ndlela ingathola i-PTFE yesisindo se-molecular ephakeme kakhulu (ngisho ingaba ngaphezu kwezigidi ezingu-10), akukho chungechunge olubonakalayo. ukudlulisa kwenzeka.
Njengoba indawo yokuncibilika ye-PTFE iphezulu kakhulu, eseduze nezinga lokushisa lokubola, futhi isisindo sayo samangqamuzana asisincane, cishe akunakwenzeka ukufeza izinga lokuncibilika elifanele ngokuthembela ekushiseni njengamapholima avamile we-thermoplastic.Yenziwa kanjani itheyiphu yeTeflon noma ishubhu yeTeflon?Endabeni yokubumba, i-PTFE powder ngokuvamile ithululelwa esikhunjini, bese ifudumala futhi icindezelekile ukuze ifake i-powder.Uma i-extrusion idingeka, izinhlanganisela ze-hydrocarbon zidinga ukungezwa ku-PTFE ukusiza ukunyakazisa nokugeleza.Inani lalezi zinhlanganisela ze-hydrocarbon kufanele lilawulwe ngaphakathi kwebanga elithile, ngaphandle kwalokho kulula ukubangela ukucindezela okweqile kwe-extrusion noma ukonakala komkhiqizo osuphelile.Ngemuva kwefomu elifunayo, izinhlanganisela ze-hydrocarbon zisuswa ngokushisa kancane, bese zishiswa futhi zifakwe emanzini ukuze zenze umkhiqizo wokugcina.
Ukusetshenziswa kwe-PTFE
Enye yezinto ezisetshenziswa kakhulu ze-PTFE ifana ne-coating.Kusukela epanini elincane elinganamatheli ekhaya kuya odongeni lwangaphandle lwekhiyubhu yamanzi, ungazwa umphumela womlingo walokhu kunamathela.Okunye ukusetshenziswa i-sealing tape, isivikelo sangaphandle socingo, ungqimba lwangaphakathi lomgqomo, izingxenye zomshini, i-labware, njll. Uma udinga into ezosetshenziswa ezimeni ezinzima, yicabangele, ingaba nemiphumela engalindelekile.
Isikhathi sokuthumela: Aug-29-2022