PTFE eriri akpụkpọ ahụ kwadebere site na-ekpo ọkụ mpịakọta usoro na orthogonal imewe.A na-eji nyocha eletrọnịkị eletrọn (SEM) lelee morphology elu nke akpụkpọ ahụ eriri ahụ, na oke ya, permeability, aperture, porosity, tensile properties, acid na alkali corrosion resistance ka nwalere wee nyochaa ya.
1. Structure naNjirimara nke PTFEeriri akpụkpọ anụ na-ekpo ọkụ
PTFE eriri akpụkpọ ahụ kwadebere site na-ekpo ọkụ mpịakọta usoro na orthogonal imewe.A na-eji nyocha eletrọnịkị eletrọn (SEM) lelee morphology elu nke akpụkpọ ahụ eriri ahụ, na oke ya, permeability, aperture, porosity, tensile properties, acid na alkali corrosion resistance ka nwalere wee nyochaa ya.The results gosiri na PTFE na-ekpo ọkụ-akpọrepu eriri film ọkpụrụkpụ bụ 0.12 ~ 0.15 mm, permeability bụ 80 ~ 101 mm / s, pore dayameta bụ 14 ~ 17 ms, porosity bụ 14.57% ~ 27.04%, mgbaji ike bụ 38 ~ 59 N, elongation na nkwụsịtụ bụ 30% ~ 38%.N'ime ụdị 9 nke fiber membranes, a ka nwere ọtụtụ ihe owuwu fibrous ma e wezụga eriri na-agbaze n'elu ụfọdụ.Mgbe ọgwụgwọ acid na alkali gasịrị, ihe ndị na-adịghị ike nke akpụkpọ ahụ fiber nọgidere na-agbanwe agbanwe.Dabere na nsonaazụ ule orthogonal, njupụta eriri eriri nwere mmetụta kachasị na ọkpụrụkpụ, permeability, dayameta pore na akụrụngwa tensile nke akpụkpọ ahụ fiber, yana mmụba nke njupụta eriri eriri, ikike na oghere nke eriri eriri na-ebelata. , ebe oke na ike mgbaji na-abawanye.
2. Njirimara nke polytetrafluoroethylene gbanwetụrụ epdm roba
EPDM gbanwere site na polytetrafluoroethylene (PTFE) na nano silicon dioxide (SiO2) kwadebere site na vulcanization.Nyochaa microscope eletrọn na ụdị infrared egosi na PTFE na EPDM nwere ezigbo ndakọrịta.Nnwale DSC gosiri na ihe mejupụtara ya nwere ọnọdụ mgbanwe iko pụrụ iche.Mgbe PTFE agbakwunyere na akụkụ 5, PTFE na EPDM nwere ezigbo ndakọrịta.N'oge a, n'ibu Njirimara nke epdm-ptfe ruru kasị elu, na ya tensile ike, elongation na ezumike, ike ike na akwa akwa bụ 22.42mpa, 588.91%, 82.0 ° na 49.60 kN / m n'otu n'otu.Nyocha nke Thermogravimetric na nyocha ịka nká na-egosi na ịka nká na nguzogide okpomọkụ nke PTFE dị mma.Ihe eji arụ ọrụ nke EPDM emekwara nke ọma ka ọ gbakwụnye akụkụ 5 nke nano SiO2.
3.Structure na Njirimara nke polytetrafluoroethylene / polypropylene ngwakọ gbazee jet nzacha ihe onwunwe
Iji gbatịa oge nchekwa nke ụgwọ static n'elu ihe ndị na-agbaze na-agbaze polypropylene (PP), ike nchekwa nke ụgwọ static ka mma site na ngwakọ organic.Na nnwale, PTFE ultrafine ntụ ntụ na PP iberi e gwakọtara ka granulate n'otu akụkụ, na dị iche iche nonwoven ihe e nwetara site gbazee-jet ịkpụzi usoro.A mụrụ usoro na arụmọrụ nke ihe ndị a na-emeghị nke ọma, dị ka morphology pụtara ìhè, micropores, ikike eletrik elu na arụmọrụ filtration, na teknụzụ corona electret mpụga ka a nakweere iji mee ka elu ihe ahụ buru ụgwọ kwụ ọtọ.The ule results na-egosi na-agbakwụnye PTFE ike n'ụzọ dị irè melite nchekwa ikike nke static ụgwọ nke gbazee-jet PP nonwoven ihe, na mgbe PTFE uka ụmụ irighiri bụ 0.1%, elu static voltaji bụ kasị elu, filtration arụmọrụ bụ ihe kasị mma na static. nkwụsi ike ụgwọ bụ ihe kacha mma.
Oge nzipu: Jun-28-2019