I-PTFE fibre membranes yalungiswa ngenqubo yokugoqa eshisayo kanye nomklamo we-orthogonal.I-Scanning electron microscope (SEM) yasetshenziswa ukuze kubhekwe i-morphology engaphezulu ye-fiber membrane, futhi ukushuba kwayo, ukuvuleka, ukuvuleka, ukuqina, izakhiwo eziqinile, ukumelana nokugqwala kwe-asidi kanye ne-alkali kwahlolwa futhi kwahlolwa.
1.Isakhiwo kanyeizakhiwo ze-PTFEulwelwesi lwefiber olushisayo
I-PTFE fibre membranes yalungiswa ngenqubo yokugoqa eshisayo kanye nomklamo we-orthogonal.I-Scanning electron microscope (SEM) yasetshenziswa ukuze kubhekwe i-morphology engaphezulu ye-fiber membrane, futhi ukushuba kwayo, ukuvuleka, ukuvuleka, ukuqina, izakhiwo eziqinile, ukumelana nokugqwala kwe-asidi kanye ne-alkali kwahlolwa futhi kwahlolwa.Imiphumela yabonisa ukuthi ugqinsi lwefilimu ye-fiber eshisayo ye-PTFE kwakungu-0.12 ~ 0.15 mm, ukuqina kwakungu-80 ~ 101 mm/s, ububanzi be-pore babungu-14 ~ 17 ms, i-porosity yayingu-14.57% ~ 27.04%, amandla okuphuka ayengu-38 ~ 59 N, Ukwelulwa ngesikhathi sekhefu bekuku-30% ~ 38%.Ezinhlotsheni ezingu-9 ze-fiber membranes, kusenezinhlaka eziningi ezine-fibrous ngaphandle kwe-fiber encibilikayo kwezinye izindawo.Ngemuva kokwelashwa kwe-asidi ne-alkali, izakhiwo eziqinile ze-fiber membrane zahlala zingashintshile.Ngokwemiphumela yokuhlolwa kwe-orthogonal, ukuminyana kwe-fiber mesh kunethonya elikhulu kugqinsi, ukungeneka, ubukhulu bembotshana kanye nezakhiwo eziqinile zolwelwesi lwefiber, futhi ngokwanda kwe-fiber mesh density, ukungena nokungena kwembotshana ye-fiber membrane kuncipha. , kuyilapho ukujiya namandla okuphuka kwanda.
2.Properties of polytetrafluoroethylene modified epdm irabha
I-EPDM ishintshwe yi-polytetrafluoroethylene (I-PTFE) kanye ne-nano silicon dioxide (SiO2) yalungiswa nge-vulcanization.Ukuskena isibonakhulu se-electron kanye ne-infrared spectrum kubonise ukuthi i-PTFE ne-EPDM zinokuhambisana okuhle.Ukuhlolwa kwe-DSC kubonise ukuthi inhlanganisela inezinga lokushisa elihlukile lokushintsha kwengilazi.Uma i-PTFE yengezwa ezingxenyeni ezingu-5, i-PTFE ne-EPDM zinokuhambisana okuhle.Ngalesi sikhathi, izakhiwo zemishini ye-epdm-ptfe zifinyelela phezulu kakhulu, futhi amandla ayo aqinile, ukuphakama ngesikhathi sekhefu, ubulukhuni namandla okudabula ama-22.42mpa, 588.91%, 82.0 ° no-49.60 kN/m ngokulandelana.Ukuhlaziywa kwe-Thermogravimetric nokuhlolwa kokuguga kubonisa ukuthi ukuguga nokumelana nokushisa kwe-PTFE kuyathuthukiswa.Izakhiwo zemishini ye-EPDM nazo zathuthukiswa kakhulu ngemva kokwengeza izingxenye ze-5 ze-nano SiO2.
3.Isakhiwo kanye nezakhiwo ze-polytetrafluoroethylene/polypropylene hybrid melt jet filter material
Ukuze kunwetshwe isikhathi sokugcina sokushaja okumile ebusweni bezinto ezincibilikisiwe ze-polypropylene (PP), amandla okugcina weshaji emile athuthukiswa yi-organic hybridization.Ocwaningweni, i-PTFE ultrafine powder kanye nocezu lwe-PP kuxutshwe ukuze kuncibilike engxenyeni ethile, futhi izinto ezihlukile ezingalukiwe zitholwe ngenqubo yokubumba ijethi encibilikayo.Ukwakheka nokusebenza kwezinto ezingalukiwe, njenge-morphology ebonakalayo, ama-micropores, amandla e-electrostatic angaphezulu kanye nokusebenza kahle kokuhlunga, kwacwaningwa, futhi ubuchwepheshe bangaphandle be-corona electret bamukelwa ukuze kwenziwe indawo ebonakalayo ithwale ishaja emile.Imiphumela yokuhlolwa ibonisa ukuthi ukwengeza i-PTFE kungathuthukisa ngempumelelo umthamo wokugcina weshaja emile yezinto ezincibilikayo ze-PP ezingalukiwe, futhi uma ingxenyenamba ye-PTFE mass ingu-0.1%, i-voltage emile engaphezulu iphezulu kakhulu, ukusebenza kokuhlunga kuhamba phambili futhi kumile. ukusimama kwenkokhelo iyona engcono kakhulu.
Isikhathi sokuthumela: Jun-28-2019