PTFE fiber membranes aka shirya ta zafi mirgina tsari da orthogonal zane.An yi amfani da microscope na lantarki (SEM) don lura da yanayin yanayin jikin fiber membrane, kuma an gwada kauri, rashin ƙarfi, buɗewa, porosity, kaddarorin tensile, acid da alkali juriya na lalata kuma an gwada su.
1.Tsarin kumaAbubuwan da aka bayar na PTFEzafi-birgima fiber membrane
PTFE fiber membranes aka shirya ta zafi mirgina tsari da orthogonal zane.An yi amfani da microscope na lantarki (SEM) don lura da yanayin yanayin jikin fiber membrane, kuma an gwada kauri, rashin ƙarfi, buɗewa, porosity, kaddarorin tensile, acid da alkali juriya na lalata kuma an gwada su.Sakamakon ya nuna cewa PTFE zafi-birgima fiber fim kauri ne 0.12 ~ 0.15 mm, permeability ya 80 ~ 101 mm / s, pore diamita ne 14 ~ 17 ms, porosity ya 14.57% ~ 27.04%, karaya ƙarfi ne 38 ~ 59 N, elongation a hutu ya kasance 30% ~ 38%.A cikin nau'ikan fiber membranes guda 9, har yanzu akwai nau'ikan sifofi masu yawa banda narkewar fiber akan wasu saman.Bayan maganin acid da alkali, abubuwan da ke da ƙarfi na membrane fiber sun kasance marasa canzawa.Dangane da sakamakon gwajin orthogonal, ƙarancin raƙuman fiber yana da mafi girman tasiri akan kauri, haɓakawa, diamita na pore da kaddarorin tensile na fiber membrane, kuma tare da haɓaka ƙimar raƙuman fiber, ƙarancin ƙarfi da diamita na fiber membrane yana raguwa. , yayin da kauri da karaya ƙarfin karuwa.
2.Properties na polytetrafluoroethylene modified epdm roba
EPDM wanda aka gyara ta polytetrafluoroethylenePTFE) da nano silicon dioxide (SiO2) an shirya shi ta hanyar vulcanization.Binciken microscope na lantarki da bakan infrared ya nuna cewa PTFE da EPDM suna da dacewa mai kyau.Gwajin DSC ya nuna cewa abin da ke tattare da shi yana da yanayin canjin gilashin na musamman.Lokacin da aka ƙara PTFE a cikin sassa 5, PTFE da EPDM suna da dacewa mai kyau.A wannan lokacin, kayan aikin injiniya na epdm-ptfe sun kai mafi girma, kuma ƙarfin ƙarfinsa, haɓakawa a hutu, taurin ƙarfi da ƙarfin hawaye sune 22.42mpa, 588.91%, 82.0 ° da 49.60 kN / m bi da bi.Binciken Thermogravimetric da gwaje-gwajen tsufa sun nuna cewa tsufa da juriya na zafi na PTFE sun inganta.Hakanan an inganta kayan aikin injiniya na EPDM bayan ƙara sassa 5 na nano SiO2.
3.Structure da kaddarorin polytetrafluoroethylene / polypropylene matasan narke jet tace abu
Don tsawaita lokacin ajiya na cajin a tsaye a saman kayan polypropylene (PP) narke-busa, ƙarfin ajiya na cajin da aka inganta ya inganta ta hanyar haɓakar kwayoyin halitta.A cikin gwajin, PTFE ultrafine foda da PP yanki an gauraye su zuwa granulate a wani rabo, kuma daban-daban nonwoven kayan da aka samu ta hanyar narkewa-jet gyare-gyare.An yi nazarin tsari da aikin kayan aikin da ba a saka ba, kamar bayyanar ilimin halittar jiki, micropores, yuwuwar wutar lantarki da ingancin tacewa, kuma an karɓi fasahar wutar lantarki ta waje don sanya saman kayan ya ɗauki caja.Sakamakon gwajin ya nuna cewa ƙara PTFE na iya haɓaka ƙarfin ajiya mai ƙarfi na cajin narke-jet PP kayan da ba a saka ba, kuma lokacin da PTFE taro juzu'i shine 0.1%, ƙarfin lantarki na saman ya zama mafi girma, aikin tacewa shine mafi kyawun kuma a tsaye. cajin kwanciyar hankali shine mafi kyau.
Lokacin aikawa: Juni-28-2019