I-PTFE i-high-temperature yokushisa ilaphu yokubhaka i-mats inika iingenelo ezine eziphambili: ukusebenza okungeyona intonga (akukho mafutha okanye umgubo ofunekayo, i-pastries e-ethe-ethe ikhupha ngokucocekileyo), uluhlu olubanzi lobushushu (-70 ° C ukuya kwi-260 ° C, ikhuselekile kwi-oven ukuya kwisikhenkcisi), ukusetyenziswa kwakhona (amawaka emijikelo, kulula ukuyicoca), kunye nokuqhuba ubushushu (ukuthintela ukutshisa, ukulungelelaniswa okumdaka). I-FDA yomgangatho wokutya iyahambelana, bakhupha iphepha lesikhumba kwaye bagqithise iimethi ze-silicone ngokugqithisela ubushushu obungcono kunye nokucoleka komphezulu.

Ilaphu le-PTFE lobushushu obuphezulu libalulekile kwishishini lempahla edibanisayo. Usetyenziso oluphambili: amabhanti okuhambisa angenamthungo angenasiphelo koomatshini bokudibanisa abaqhubekayo (bathintela ukuncamathelisa okutshisayo okunyibilikayo, ukuhambisa okungenamibimbi), isigqubuthelo esinganamatheli kunye nelaphu lokugquma lobushushu obucaba (ukhusela iipleyiti kungcoliseko oluncamathelayo), amabhanti okuhambisa amachaphaza okuncamathisela/umgubo wokuncamathisela ngexesha lokuncamathisela. ukomisa / ukuthambisa), kunye nezihlangu zezihlangu zentsimbi zokucofa isampulu. Ukutyeba ukusuka kwi-0.13mm (i-padding elula) ukuya kwi-0.55mm (iibhanti zokuhambisa ezinzima).

Ilaphu le-PTFE elichasene ne-static liphunyezwa ngeendlela ezimbini eziphambili: ukugquma idoping (ukuxuba izihluzi eziqhubayo ezifana nekhabhoni emnyama kwi-emulsion ye-PTFE, ukwenza inethiwekhi ye-percolation ekugxininiseni okubalulekileyo) kunye ne-substrate weaving (ukufaka iintsinga eziqhubayo kwilaphu le-fiberglass). Ukumelana nomphezulu kulawulwa ku-10⁵–10⁹ Ω. Umgaqo-siseko: yenza indlela yokuqhuba ekhupha iintlawulo ezimileyo ngoko nangoko, ukuthintela ukuqokeleleka okuyingozi. Ukuthoba kunyanzelekile ukuze usebenze ngokufanelekileyo.

Ilaphu le-PTFE elinobushushu obuphezulu (i-PTFE-coated fiberglass) inikeza uxhathiso lweekhemikhali ezikhethekileyo, ukumelana ne-acids concentrated (kuquka i-aqua regia), i-alkali eyomeleleyo (kwiqondo lobushushu begumbi), izinyibilikisi eziphilayo, kunye ne-oxidizing agents. Ngaphandle: isinyithi esinyibilikisiweyo sealkali kunye nobushushu obuphezulu bekhompawundi yehalogen ihlasela i-PTFE. Umonakalo wokugquma ubeka i-fiberglass kwi-hydrofluoric acid kunye ne-alkali egxininiswe eshushu. Ubushushu obungaphezulu kwe-260 ° C bunciphisa ukuxhathisa. Kwiindawo ezininzi zeekhemikhali, ilaphu le-PTFE lihlala lizinzile kwaye lithembekile.

Ukomisa linyathelo elibalulekileyo kwi-PTFE yokuvelisa ilaphu lobushushu obuphezulu. Iziphene eziqhelekileyo zibandakanya: ukuqhekeka (ukomisa ngokukhawuleza, ukukhupha isikhumba), ukufuduka (amasuntswana ahambela phezulu, ibhondi yangaphakathi ebuthathaka), imibhobho / amadyungudyungu (umoya obanjwe okanye umphunga), amabala amhlophe kunye ne-chalking (ukufuduka kwe-surfactant okanye ukudityaniswa okungaphelelanga), i-yellowing / coking (ukushisa ngokugqithiseleyo kwezongezelelo), i-delamination (i-sherinkage ye-peelleven), i-dealmine (i-sherinkage ye-peelle, i-deeling, i-dealer, i-dealer, i-dealer, i-dealing, i-dealer, ukushwabana), umphezulu womile kodwa ngaphakathi umanzi (ukulusu lubamba ukufuma), kunye nemiphetho engqindilili (isiphumo sekofu). Izisombululo zibandakanya iiprofayili zokomisa ezilawulwayo, ukungena komoya okufanelekileyo, kunye nokunyangwa kwangaphambili kwe-substrate.

Ilaphu lefiberglass eyandisiweyo (ilaphu lelaphu elikhulu) lahluke kakhulu kwilaphu eliqhelekileyo le-fiberglass kwisakhiwo somsonto. Ngonyango lwejethi yomoya yoxinzelelo oluphezulu, imicu yeglasi eqhubekayo yahlulwa, yahluzwa, kwaye igutyungelwe ibe yivolunous, intambo efana nomqhaphu. Oku kudala ilaphu elijiyileyo, elithambileyo eline-insulation ephezulu ye-thermal (i-air layers evaleleke), ukuhambelana ngcono, ukusebenza kakuhle kokucoca, kunye nokuphuculwa kokumelana nokukrazula / ukuguquguquka - ngexabiso lamandla asezantsi kancinci. Isetyenziselwa iigaskets ezinobushushu obuphezulu, ukusonga kwemibhobho, iingxowa zokucoca, kunye nezitywina ze-oveni.

Ukucoceka kwezinto ezikrwada sisiseko se-PTFE sokusebenza kwelaphu lobushushu obuphezulu. I-emulsion ye-PTFE ecocekileyo (akukho ion zetsimbi, akukho ntsalela ye-molecular-weightweight residues) iqinisekisa ukumelana nobushushu (akukho yellowing ukuya kwi-260 ° C), i-stable non-stick, kunye namandla aphezulu e-dielectric. Kwi-fiberglass, i-alkali-free E-glass (Na₂O <0.8%) igcina amandla kunye ne-insulation kwiqondo lokushisa eliphezulu; iglasi ephakathi/ephezulu yealkali ibangela ukuthotywa. Ukususwa ngokupheleleyo kwee-agents zokuluka kuthintela i-carbonization kunye ne-delamination. Ubunyulu buchaphazela ngqo ubomi benkonzo, ukuthotyelwa kwebakala lokutya, kunye nokuthembeka kombane.

Ilaphu le-PTFE elinobushushu obuphezulu (i-PTFE-coated fiberglass) iphantse yangena kwikhemikhali, kodwa izinto ezithile zibangela ukubola phantsi kweemeko ezithile. Uhlaselo oluthe ngqo lwe-PTFE lwenzeka ngesinyithi esinyibilikisiweyo se-alkali (i-sodium, i-potassium), i-fluorinating agents eyomeleleyo (F₂, ClF₃) kumaqondo obushushu aphezulu, kunye ne-alkali eyomeleleyo etyhidiweyo ngaphezulu kwe-300 ° C. Ukonakala ngokungangqalanga kwenzeka xa i-hydrofluoric acid (HF), i-alkali egxininisiweyo eshushu, okanye i-phosphoric acid eshushu igqobhoza iziphene zokwaleka kwaye ihlasele i-fiberglass substrate. Kwinkonzo yeekhemikhali ezigqithisileyo, sebenzisa ifilimu ecocekileyo ye-PTFE ngaphandle kwe-fiberglass.

Ilaphu le-PTFE elinobushushu obuphezulu (i-PTFE-coated fiberglass) inokumelana nokuxhathisa ukothuka kwe-thermal ngaphakathi koluhlu lwayo lokusebenza oluqhelekileyo lwe--70 °C ukuya kuma-260°C. Iyakwazi ukunyamezela ukukhwela ibhayisekile kobushushu obukhawulezayo, umz., ukusuka kwi--50°C kwisikhenkcisi ukuya kumatshini wokushicilela oshushu wama-260°C. Amabakala ePremium ade aphumelele ukupholisa ngesiquphe ukusuka kwi-260°C ukuya kwi-10°C emanzini. Nangona kunjalo, ukothusa izinto ezivela kumaqondo obushushu angaphezu kwe-300 ° C (kufuphi ne-PTFE's 327 ° C melting point) kuya kubangela ukuqhekeka kunye nokuchithwa kwangoko. I-fiberglass substrate ibonelela ngokuzinza kwe-dimensional; I-PTFE yokwambathisa yinto ethintelayo.

Ilaphu le-PTFE elinobushushu obuphezulu lisetyenziswa kakhulu kushishino lweekhemikhali kwizicelo ezingundoqo ezisixhenxe: iigaskets zeflange kunye nelayini yombhobho (ixhathise i-acids eyomeleleyo/alkali), i-reactor kunye ne-tank linings (ithintela ukubola kwesinyithi, ukucoca lula), iingxowa zokucoca igesi enomhlwa (ukuya kuthi ga kwi-260°C), i-anti-corrosion expansion, i-anti-corrosion extensions ukubumba okuhlanganisiweyo, kunye nokusonga kombane/kwe-thermal. I-FDA kunye ne-UL amabakala akhoyo.