Ubushushu beglasi yokutshintsha (Tg) ye-silicone yokuncamathelisa i-adhesive yoxinzelelo ijikeleze -120 ° C - isezantsi kakhulu kune-adhesives ye-acrylic. Le Tg ye-ultra-low igcina i-PTFE i-tape ephezulu yobushushu eguquguqukayo kwaye incangathi nakwi--70 ° C, ikhusela ukuqhekeka kwe-brittle kunye nokuvumela ukubambelela okuthembekileyo kwizicelo ze-cryogenic.

Iteyiphu ye-PTFE yobushushu obuphezulu inokuqhekeka okanye iqhekeke phantsi kokugoba ngokuphindaphindiweyo kunye neemeko zokuvula. Eli nqaku lichaza indlela yokuthintela oku ngokukhetha okufanelekileyo kwe-substrate (ifiber yeglasi eqinisiweyo), ubukhulu obufanelekileyo (0.18mm njengomgangatho), ukhetho lwe-adhesive ye-silicone, kunye neendlela ezichanekileyo zokufakela.

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, ukugxila, kunye noxinzelelo lomatshini.

Ukukhethwa kwephepha lokukhululwa okanye i-substrate yefilimu kunye ne-arhente yokukhulula ichaphazela ngokuthe ngqo ukuzinza kokugcinwa kunye nokusebenza kwe-peeling ye-PTFE ye-tape ephezulu yokushisa. Eli nqaku lithelekisa i-PET kunye ne-kraft substrates yephepha kunye ne-silicone vs.

Iiteyiphu ze-PTFE zobushushu obuphezulu zisetyenziselwa ukugquma kombane, kodwa iimeko ezikwi-frequency ephezulu kunye ne-high-voltage zibeka imingcipheko eyodwa: ukuqhawuka kombane, ukukhutshwa ngokuyinxenye, ukuguga kwe-thermal, ilahleko ye-high-frequency signal, kunye novakalelo lokusingqongileyo. Eli nqaku lichaza ingozi nganye kunye nendlela yokuphepha.

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 le-PTFE eliphefumla kakhulu elinobushushu obuphezulu lidibanisa iipropati ezingezinti, uzinzo lwe-thermal, kunye nokungena komoya. Eli nqaku liphonononga izicelo zalo eziphambili ekomisweni kwelaphu, ukulungiswa kokutya, ukwenziwa kwezinto ezihlanganisiweyo, izinto zombane, ukuhambisa umoya, ukukhuselwa kwendalo kunye nezinto zokwakha.

Eli nqaku lichaza indlela yokuthintela ungcoliseko kunye nomonakalo wokusebenza kwicala elingabambeleliyo le-PTFE iteyiphu yobushushu obuphezulu ngexesha lenkqubo yokwambathisa. Izicwangciso eziphambili zibandakanya ukulawulwa komthombo (unyango oluchanekileyo lomhlaba), ukuhlukaniswa ngokomzimba (iifilimu ezikhuselayo, ii-roller ezingenayo intonga, ukomiswa kwendawo), kunye nolawulo lwenkqubo esulungekileyo.

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.

Ukufakela iteyiphu yobushushu obuphezulu be-PTFE ngokuqinileyo kwimiphezulu egobileyo nengaqhelekanga ngaphandle kwamaqamu kunye ne-edge warping, inkqubo yokusebenza esemgangathweni ibalulekile, kubandakanywa ukunyangwa ngokucokisekileyo kwe-substrate, izakhono zobuchule bokusebenza kunye namanyathelo ancedisayo afanelekileyo. Phakathi kwabo, i-substrate pretreatment lelona nyathelo libaluleke kakhulu, elimisela malunga ne-70% yesiphumo sokuncamathela sokugqibela.