Ilaphu le-PTFE elinobushushu obuphezulu (i-PTFE-coated fiberglass) yi-premium media filter kwiimeko ezigqithisileyo: ukususwa kwerhasi ye-flue (isamente, ukutshisa inkunkuma, iibhoyila zamalahle ukuya kwi-260 ° C), ukuhluzwa kolwelo oludlekayo (i-acids, i-alkalis, i-oyile), ukutya / ukuhluzwa kwe-pharmacy oyinyumba, kunye nezihluzo ze-HEPA. Umphezulu ongagxiliyo uthintela ukugquma uthuli kwaye uvumela ukucoca lula. Amanqaku e-Membrane-laminated afumana ukukhutshwa kwe-ultra-low.

Ilaphu le-PTFE lobushushu obuphezulu ligcina ubushushu obugqwesileyo bobushushu ukusuka ku -180°C ukuya kuma-260°C: umthamo we-resistivity >10¹³ Ω·cm nge-200°C, i-dielectric ihlala ihleli kwi-2.0-2.1. Ngaphezulu kwe-260 ° C, i-PTFE iyathamba, ibole ngaphezu kwe-327 ° C, ilahlekelwa yi-insulation ngokusisigxina. Ngaphantsi kwe-0°C, ukugquma kuyaphucuka kodwa ukugquma kuba brittle. Hlala ngaphakathi kwe-260 ° C ukuze usebenze ngokuthembekileyo.

Ilaphu le-PTFE elinobushushu obuphezulu (i-PTFE-coated fiberglass) ilungele amabhanti okuhambisa ukutya ngenxa yokumelana nobushushu obungama-260°C, -70°C ukuguquguquka okubandayo, indawo engabambekiyo, kunye nokuthotyelwa kwe-FDA. Usetyenziso oluphambili: ii-oveni zokubhaka (iibhiskithi, isonka, ipizza), izinto zokuhambisa ukutya okuqhotsiweyo, iintambo zokupholisa iilekese, iitonela ezikhenkcezayo, izitywini zobushushu, kunye nokusonga iirola. Inciphisa inkunkuma kunye nexesha lokucoca.

Ikhalenda – ukucinezela ilaphu eligqunywe nge-PTFE phakathi kweerola zesipili ezishushu kwi-360-380°C – kuguqula ngokumangalisayo ukumila komphezulu, iipropathi zokukhulula, ukungagungqi, kunye nokusebenza koomatshini. Iyanciphisa uburhabaxa ukusuka ku-Ra 0.5-1.0 μm ukuya ku-<0.05 μm, itywina i-pinholes, iphucula ukuchasana nokugqoka, kodwa iyancipha amandla okukrazula kunye nokuguquguquka. Kubalulekile ukukhulula iilitha kunye nokufakelwa kombane.

I-Coating uniformity ye-PTFE i-high-temperature yelaphu igqitywe yimiba emine: ukubunjwa kwe-coating (ubungakanani be-particle 0.15-0.35 μm, i-viscosity, umxholo oqinileyo), i-coating & sintering process (i-blade coating ekhethwayo ngokufana), umgangatho we-substrate (ipateni ye-weave, unyango lwangaphambili), kunye nemeko yokuvelisa (20-25% R <60% <H). Dip + blade inkqubo edityanisiweyo ibhalansi ukungena kunye nokuguda komphezulu.

Ilaphu le-PTFE elinobushushu obuphezulu kunye nelaphu le-silicone zombini zisebenzisa ilaphu le-fiberglass njengesiseko kodwa ziyahluka kwizinto zokwaleka (i-PTFE resin vs irabha ye-silicone). I-PTFE igqwesile ekungabambeni, ukuxhathisa ukunxiba, kunye nokumelana neekhemikhali ukuya kuthi ga kwi-260°C. Ilaphu le-Silicone linika ukuguquguquka okuphezulu, ukugquma kombane, kunye nokumelana nomlilo (ukuya kuma-230 ° C). Khetha ngokusekelwe kukubaluleka kwakho.

Ilaphu le-PTFE elinobushushu obuphezulu libonelela ngokuxhathisa okukhethekileyo kweekhemikhali, ukumelana neeasidi ezomeleleyo, iialkali, izinyibilikisi eziphilayo, kunye neegesi ezidliwayo. Eli nqaku lichaza izinto zalo ezixhathisayo, imida (isinyithi esinyibilikisiweyo se-alkali, i-agent eqinile ye-fluorinating), kunye nezinto eziphambili ezifana nobushushu, ugxininiso, kunye noxinzelelo lomatshini.

Ukufakwa kwe-PTFE akuphelelanga kwilaphu le-fiberglass. Eli nqaku lizisa ii-substrates ezi-7 ezizezinye - i-aramid, i-carbon fiber, i-PBI, isinyithi esine-porous, i-graphite, i-asbestos (ikhutshwe ngaphandle), kunye ne-ceramic fillers - kunye neempawu zabo zenkqubo, izibonelelo, ukulinganiselwa, kunye nezicelo eziphambili.

Eli nqaku licacisa ukuba kutheni ilaphu le-fiberglass engena-alkali iyeyona ikhethwayo kwilaphu le-PTFE lobushushu obuphezulu. Igquma ukudityaniswa kweekhemikhali kusetyenziswa i-silane coupling agents kunye neepropathi eziphambili zomzimba ezifana nokuzinza kwe-thermal, ukuzinza komda, kunye nokumelana nomhlwa-ukuqinisekisa ukusebenza okuhlala ixesha elide kwiindawo ezirhabaxa.