Itheyiphu ye-PTFE yokushisa ephezulu ingaqhekeka noma iphuke ngaphansi kwezimo zokugoba nokuvula okuphindaphindiwe. Lesi sihloko sichaza ukuthi ungakuvimbela kanjani lokhu ngokukhetha okufanele kwe-substrate (i-fiber yengilazi iqiniswe), ukujiya okuphezulu (0.18mm njengokujwayelekile), ukukhetha kwe-adhesive ye-silicone, nezindlela zokufaka ezifanele.

Indwangu ye-PTFE enezinga eliphezulu lokushisa inikeza ukumelana kwamakhemikhali okukhethekile, imelana nama-asidi aqinile, ama-alkali, izinyibilikisi eziphilayo, namagesi abolayo. Lesi sihloko sichaza ngezinto ezimelana nayo, imikhawulo (izinsimbi ze-alkali ezincibilikisiwe, ama-ejenti anamandla e-fluorinating), nezici ezibalulekile ezifana nezinga lokushisa, ukugxilisa ingqondo, nokucindezeleka komshini.

Ukukhethwa kwephepha lokukhishwa noma i-substrate yefilimu kanye ne-ejenti yokukhulula kuthinta ngokuqondile ukuqina kwesitoreji nokusebenza kokuxebuka kwetheyiphu ye-PTFE yokushisa okuphezulu. Lesi sihloko siqhathanisa i-PET vs. kraft paper substrates kanye ne-silicone ngokumelene nama-ejenti okukhululwa e-fluorinated, incoma inhlanganisela efanele yokuxebuka kwezinsalela eziyiziro nokuthembeka kwesikhathi eside.

Amateyipu e-PTFE okushisa okuphezulu asetshenziswa kakhulu ekufakeni ugesi, kodwa izimo ze-high-frequency kanye ne-high-voltage zibeka izingozi eziyingqayizivele: ukuphuka kukagesi, ukukhipha ingxenye, ukuguga okushisayo, ukulahlekelwa kwesignali ye-high-frequency, kanye nokuzwela kwemvelo. Lesi sihloko sichaza ingozi ngayinye nendlela yokugwema.

Ukufakwa kwe-PTFE akugcini nje ngendwangu ye-fiberglass. Lesi sihloko sethula ama-substrates angu-7 ahlukile - i-aramid, i-carbon fibre, i-PBI, insimbi enezimbotshana, i-graphite, i-asbestos (ikhishiwe), kanye nezigcwalisi ze-ceramic - nezici zazo zenqubo, izinzuzo, imikhawulo, kanye nezicelo ezibalulekile.

Indwangu yokushisa ephezulu ye-PTFE ephefumula kakhulu ihlanganisa izakhiwo ezinganamatheli, ukuzinza okushisayo, nokungena komoya. Lesi sihloko sihlola ukusetshenziswa kwayo okubalulekile ekomisweni kwendwangu, ukucubungula ukudla, ukukhiqiza okuyinhlanganisela, izinto zikagesi, ukuthutha umoya, ukuvikelwa kwemvelo, nezinto zokwakha.

Lesi sihloko sichaza indlela yokuvimbela ukungcola nokusebenza kokulimala ohlangothini olunganamatheli lwe-PTFE itheyiphu yokushisa ephezulu ngesikhathi senqubo yokumboza. Amasu abalulekile ahlanganisa ukulawulwa komthombo (ukwelashwa okuqondile kwendawo), ukuzihlukanisa ngokomzimba (amafilimu avikelayo, amarola angagxili, ukomiswa kwendawo), kanye nokuphathwa kwenqubo ecolisisiwe.

Lesi sihloko sichaza ukuthi kungani indwangu ye-fiberglass engena-alkali iyisisekelo esincanyelwayo sendwangu ye-PTFE enezinga lokushisa eliphezulu. Ihlanganisa ukubopha kwamakhemikhali ngama-ejenti ahlanganisayo we-silane kanye nezakhiwo ezibalulekile zomzimba njengokuzinza kwe-thermal, ukuzinza kwe-dimensional, nokumelana nokugqwala - iqinisekisa ukusebenza okuhlala isikhathi eside ezindaweni ezinokhahlo.

Ukuze usebenzise itheyiphu yokushisa ephezulu ye-PTFE ngokuqinile ezindaweni ezigobile nezingajwayelekile ngaphandle kwamabhamuza nokuguquguquka konqenqema, inqubo yokusebenza esezingeni ibalulekile, okuhlanganisa nokwelashwa kwe-substrate okuphelele, amakhono okusebenza ochwepheshe kanye nezinyathelo ezifanele zokusiza. Phakathi kwazo, ukwelashwa kwe-substrate kuyisinyathelo esibucayi kakhulu, esinquma cishe u-70% womphumela wokugcina wokunamathela.

Ngokumelene nokwasemuva kwemithetho eqinile yezemvelo, i-emulsion ye-PFOS/PFOA-free PTFE ingumkhiqizo othuthukisiwe othuthukisiwe ukuze ungene esikhundleni sezinqubo zendabuko ze-PFOA eziqukethe i-polymerization. Igcina izici eziyinhloko ze-PTFE kuyilapho ithuthukisa kakhulu ubungane bemvelo nokuphepha kwezempilo.