Ukuqonda ngokunzulu umgaqo wokusebenza kunye nokusetyenziswa kwefilimu ephefumulayo engenamanzi

Ifilimu ephefumulayo engenamanzi yimveliso yemveliso evela kwiteknoloji yokwahlula i-membrane. Ifilimu eyenziwe ngenkqubo ekhethekileyo kwaye inokungena okukhethiweyo. Inokuvumela ezinye iigesi ezincinci kunomngxuma wefilim ephefumlayo ongenamanzi ukuba idlule phantsi kweempawu zayo, kwaye ayinakuvumela ezinye izinto ezinjengamathontsi amanzi amakhulu kunomngxuma wefilim ephefumlayo ongenamanzi ukuba idlule. Kungenxa yendalo yefilimu ephefumlayo engenamanzi ukuba ezinye iimolekyuli ezincinci zinokudlula, kwaye ezinye iimolekyuli ezinkulu azikwazi ukudlula kwifilimu ephefumlayo engenamanzi, ngoko ke ukusukela kwiminyaka yoo-1960 yenkulungwane edluleyo, ifilimu ephefumlayo engenamanzi iye yaphuhliswa ngokukhawuleza. Okwangoku, kukho ubukhulu becala i-PTFE, i-PES, i-PVDF, i-PP, i-PETE kunye nezinye iimbumba zokuhluza, ngenxa yokuzinza kweekhemikhali ezilungileyo zezinto ze-ePTFE, iipropati zendalo ze-hydrophobic kwaye zisetyenziswa kuzo zonke iindlela zobomi.

Umgaqo wokusebenza we-membrane ephefumlayo engenamanzi

Kwimeko yomphunga wamanzi, ububanzi beamolekyuli zomphunga wamanzi bumalunga ne-0.0004 microns kuphela, kwaye ubuncinci be-droplets yamanzi bumalunga nama-microns angama-20. Ubukho bomaleko ophefumlayo wepolymer oqulethe i-micropores kwifilimu ephefumlayo engangeni manzi yenza ukuba iimolekyuli zomphunga wamanzi eziseludongeni ziphume ngokutyibilikayo kwi-microporous membrane ngomgaqo wokusasazwa, ukunciphisa ngempumelelo ingxaki yokuxinana kudonga lwangaphandle. Ngenxa yobubanzi obukhulu bamanzi angamalwelo okanye amathontsi amanzi ngaphandle kodonga, iimolekyuli zamanzi azikwazi ukungena ukusuka kumaso amanzi ukuya kwelinye icala, nto leyo eyenza ukuba ifilimu ephefumlayo ingangeni manzi. ‍

Kwiimeko eziqhelekileyo, izixhobo ezininzi kunye nezicelo zazo zifuna indawo evaliweyo yokutywinwa, engenakuchaphazeleka ngothuli lwangaphandle, amanzi kunye neebhaktheriya. Ukuba uyilo luvalwe ngokukodwa, phantsi kweemeko zenjongo yokutshintsha kweqondo lokushisa kunye nobubanzi, kuya kukhokelela kutshintsho loxinzelelo ngaphakathi kwesixhobo, ngokuqhelekileyo olu tshintsho loxinzelelo luya kuvelisa umphumo othile woxinaniso, oya kutshabalalisa iindawo ezibuthathaka zeqokobhe lesixhobo ngaphakathi. Ukusetyenziswa kwe-ePTFE i-membrane ephefumulayo engangeni manzi inokuqhubeka nokulinganisela ukuhluka koxinzelelo lwezixhobo, ukunciphisa iindleko zoyilo lwecandelo, kunye nokuqinisekisa ukuthembeka kwemveliso.

Iimpawu zefilimu ephefumlayo e-ePTFE engenamanzi

Ukungangeni manzi: i-microhole ye-0.1-10μm, i-aperture ingaphantsi kwama-10,000 amaso amanzi, ukuze amanzi angakwazi ukudlula, ukukhusela ngokufanelekileyo iindawo ezinobuthathaka, ukuphepha ukukhukuliseka kwamanzi, ukuphucula ubomi bemveliso.

Ukungena komoya: i-micropore diameter ngamaxesha angama-700 mkhulu kunomphunga wamanzi, ingenamanzi ngaxeshanye, ivumela umoya ukuba udlule kakuhle, inokutshabalalisa ngokufanelekileyo ubushushu, ithintele udonga lwangaphakathi lwenkungu yemveliso, ilungelelanise uxinzelelo lwangaphakathi nangaphandle.

Ukuthintela uthuli: Ijelo le-microporous lenza i-mesh ye-mesh-dimensional structure kwifilimu, kunye nokusabalalisa iyunifomu kunye nokusabalalisa kwe-micropores kwenza uthuli ukudibana nomqobo, ukuze kuphunyezwe umphumo osebenzayo wokuthintela uthuli, kwaye ubuncinci bunokubamba amasuntswana angama-0.1μm.