Li-membrane tsa fiber tsa PTFE li entsoe ka mokhoa o chesang oa ho bilika le moralo oa orthogonal.Scanning electron microscope (SEM) e ne e sebelisetsoa ho shebella morpholoji ea holim'a lesela la fiber, 'me botenya ba eona, ho phunyeletsa, ho phunyeha, ho phunyeha, thepa ea ho tsitsisa, acid le alkali corrosion resistance li ile tsa lekoa le ho hlahlojoa.
1.Sebopeho lethepa ea PTFElera la faeba le chesang le chesang
Li-membrane tsa fiber tsa PTFE li entsoe ka mokhoa o chesang oa ho bilika le moralo oa orthogonal.Scanning electron microscope (SEM) e ne e sebelisetsoa ho shebella morpholoji ea holim'a lesela la fiber, 'me botenya ba eona, ho phunyeletsa, ho phunyeha, ho phunyeha, thepa ea ho tsitsisa, acid le alkali corrosion resistance li ile tsa lekoa le ho hlahlojoa.Liphello li bontšitse hore botenya ba filimi ea PTFE e chesang-rolled e ne e le 0.12 ~ 0.15 mm, ho phunyeletsa e ne e le 80 ~ 101 mm / s, bophara ba pore e ne e le 14 ~ 17 ms, porosity e ne e le 14.57% ~ 27.04%, matla a fracture e ne e le 38 ~ 59 N, elongation nakong ea khefu e ne e le 30% ~ 38%.Mefuteng e 9 ea li-membrane tsa fiber, ho ntse ho e-na le lisebelisoa tse ngata tsa fiber ntle le fiber e qhibilihang libakeng tse ling.Ka mor'a phekolo ea asiti le alkali, thepa e tsitsitseng ea lera la fiber e ile ea lula e sa fetohe.Ho ea ka liphetho tsa tlhahlobo ea orthogonal, fiber mesh density e na le tšusumetso e kholo ho botenya, ho kenella, bophara ba pore le thepa e tsitsitseng ea membrane ea fiber, 'me ka keketseho ea sekhahla sa fiber mesh, ho kenella le bophara ba pore ea membrane ea fokotseha. , ha botenya le matla a ho robeha a ntse a eketseha.
2.Properties ea polytetrafluoroethylene e fetotsoeng epdm rabara
EPDM e fetotsoe ke polytetrafluoroethylene (PTFE) le nano silicon dioxide (SiO2) e ne e lokiselitsoe ke vulcanization.Ho hlahloba microscope ea elektronike le spectrum ea infrared ho bontšitse hore PTFE le EPDM li ne li lumellana hantle.Teko ea DSC e bonts'itse hore motsoako o na le mocheso o ikhethang oa phetoho ea khalase.Ha PTFE e eketsoa likarolong tse 5, PTFE le EPDM li na le kamano e ntle.Ka nako ena, thepa ea mechine ea epdm-ptfe e fihla holimo ka ho fetisisa, 'me matla a eona a tsitsitseng, ho lelefatsa ha khefu, ho thatafala le matla a ho tabola ke 22.42mpa, 588.91%, 82.0 ° le 49.60 kN / m ka ho latellana.Tlhahlobo ea Thermogravimetric le liteko tsa botsofali li bontša hore ho tsofala le ho hanyetsa mocheso oa PTFE ho ntlafatsoa.Thepa ea mechine ea EPDM le eona e ile ea ntlafatsoa haholo ka mor'a ho eketsa likarolo tsa 5 tsa nano SiO2.
3.Sebopeho le thepa ea polytetrafluoroethylene/polypropylene hybrid melt jet filter material
E le ho eketsa nako ea polokelo ea tefiso e tsitsitseng holim'a thepa e qhibilihisitsoeng ea polypropylene (PP), matla a polokelo ea tefiso e tsitsitseng e ile ea ntlafatsoa ke organic hybridization.Tekong, PTFE ultrafine powder le PP selae li ile tsa tsoakoa ho granulate ka tekanyo e itseng, 'me lisebelisoa tse fapaneng tse sa lohoeng li ile tsa fumanoa ka mokhoa oa ho qhibiliha oa jet.Sebopeho le ts'ebetso ea lisebelisoa tsa nonwoven, tse kang morphology e hlakileng, li-micropores, bokhoni ba motlakase bo ka holimo le ts'ebetso ea filtration, li ile tsa ithutoa, 'me theknoloji ea kantle ea corona electret e ile ea amoheloa ho etsa hore thepa e ka holimo e jare tefiso e tsitsitseng.Liphetho tsa liteko li bonts'a hore ho eketsa PTFE ho ka ntlafatsa ka katleho bokhoni ba polokelo ea static charge ea melt-jet PP thepa e sa lohang, 'me ha karoloana ea boima ba PTFE e le 0.1%, matla a holimo a holimo ke a phahameng ka ho fetisisa, ts'ebetso ea filtration ke eona e ntle ka ho fetisisa ebile e tsitsitse. tefello botsitso ke molemo ka ho fetisisa.
Nako ea poso: Jun-28-2019