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 yokungena kunye nokuguda komphezulu.

Ukucoca nokugcinwa ngokufanelekileyo kwandisa ubomi belaphu le-PTFE lobushushu obuphezulu. Coca emva kokusetyenziswa nasemva kokupholisa. Sebenzisa iibhrashi ezithambileyo, izicoci ezingathathi hlangothi, okanye utywala ukwenza amabala. Ungaze usebenzise iiasidi ezomeleleyo/iialkali, iblitshi, okanye izikrweqe zentsimbi. Ukuthambisa ioli ye-silicone rhoqo kunciphisa ukunxiba. Landela ezi zikhokelo ukuthintela ukonakaliswa kwengubo.

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 lobushushu obuphezulu (i-PTFE inwebu yempahla) lukhetho lweprimiyamu yolwakhiwo oluqinileyo. Izinto eziluncedo ezingundoqo: iminyaka engama-30+ yobomi bangaphandle, indawo yokuzicoca (amanzi emvula ahlamba ubumdaka), ukuhanjiswa kokukhanya okuthambileyo (6-13%), ukukala komlilo kuDidi A, kunye namandla afana nentsimbi angaphantsi kwe-1.5 kg/m². Isetyenziswa kumabala emidlalo, kwizikhululo zeenqwelo moya, kunye nezakhiwo ezinomfanekiso kwihlabathi liphela.

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.

Ilaphu eliphefumla kakhulu le-PTFE elinobushushu obuphezulu lidibanisa iipropati ezingezizo, ukuzinza kwe-thermal, kunye nokungena komoya. Eli nqaku liphonononga izicelo zalo eziphambili ekomisweni kwelaphu, ukusetyenzwa kokutya, ukwenziwa kwezinto ezihlanganisiweyo, izinto zombane, ukuhambisa umoya, ukukhuselwa kwendalo kunye nezinto zokwakha.

Eli nqaku licacisa ukuba kutheni ilaphu le-alkali-free fiberglass lelona laphu likhethwayo le-PTFE elinobushushu 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.

Indlela yokukhetha i-PTFE eLungileyo iFabric Coated for Architectures Umaleko we-polytetrafluoroethylene ulungile ekugcineni izinto zikhuselekile,

Isikhokelo sokuKhetha iLaphu eliLungileyo leFiberglass eFayitiweyo yeFiberglass yoBubushushu obuPhezulu UkutywinwaUkukhetha elona laphu le-PTFE eligqunywe nge-fiberglass yokuvala imisebenzi kumaqondo obushushu aphezulu, kufuneka wazi iimpawu zalo eziphambili zokusebenza, iimfuno zeshishini lakho, kunye nezixhobo zomthengisi. Umxube okhethekileyo