Anti-static PTFE nsalu zimatheka kudzera njira zikuluzikulu ziwiri: ❖ kuyanika doping (kusakaniza zodzaza conductive ngati mpweya wakuda mu PTFE emulsion, kupanga percolation network pa ndende yovuta) ndi gawo lapansi kuluka (embedding ulusi conductive mu fiberglass nsalu). Kulimbana kwapamwamba kumayendetsedwa pa 10⁵–10⁹ Ω. Mfundo: pangani njira yoyendetsera yomwe imatulutsa ma static charges nthawi yomweyo, kupewa kudzikundikira kowopsa. Kuyika pansi ndikofunikira kuti ntchito igwire bwino.

Thickeners mu PTFE emulsion amagwira ntchito zinayi zofunika kwambiri: kuyimitsidwa kukhazikika (kuletsa kukhazikika kwa wandiweyani PTFE particles), kumeta ubweya-kupatulira khalidwe (mkulu mamasukidwe akayendedwe pa mpumulo, otsika pansi mukubwadamuka kuti ❖ kuyanika mosavuta), kulamulira kulowa mkati (amayendetsa kutsitsa kwa utomoni pa nsalu ya fiberglass), ndi kufanana kwa filimu (kuletsa kusweka pamene kuyanika). Chofunikira chofunikira: zokhuthala ziyenera kuwola kwathunthu kutentha kwa ~ 380 ° C sintering, kusiya ziro zotsalira za phulusa kuti ❖ kuyanika kuyenera kukhala koyera komanso kutsekereza magetsi.

Nsalu yotentha kwambiri ya PTFE (PTFE-yokutidwa ndi fiberglass) imapereka kukana kwapadera kwamankhwala, kupirira ma acid (kuphatikiza aqua regia), alkali amphamvu (kutentha), zosungunulira organic, ndi oxidizing agents. Kupatulapo: zitsulo zosungunuka za alkali ndi ma halogen otenthetsera kwambiri amaukira PTFE. Kuwonongeka kwa zokutira kumawonetsa magalasi a fiberglass ku hydrofluoric acid ndi ma alkali otentha kwambiri. Kutentha pamwamba pa 260 ° C kumachepetsa kukana. Pazinthu zambiri zama mankhwala, nsalu ya PTFE imakhalabe yokhazikika komanso yodalirika.

Tepi ya PTFE yotalikirana ndi kutentha imafunikira silikoni PSA yomwe imasunga zomatira kuchokera -70°C mpaka 260°C. Zinthu zazikuluzikulu zamapangidwe: kusanjikiza koyambira koyambira (kuteteza kutsetsereka), kusanjikizana kwa chilumba cha m'nyanja (MQ resin Islands + polysiloxane continuous phase), gradient crosslinking (wosanjikiza kwambiri wamkati wa kukana kukwawa, wosanjikiza wakunja wosanjikizana wocheperako), ndi zoziziritsa kutentha zokhazikika (cerium oxid resistance). Magawo a phenyl-modified siloxane amapondereza kutentha kwa crystallization, zomwe zimathandiza kusinthasintha pansipa -100 ° C.

Aokai PTFE adawonetsa mndandanda wake wonse wazinthu ku APFE Shanghai 2026 (Booth 6T602, Hall 6). Zogulitsa zomwe zili ndi fiberglass zolimbitsa thupi za PTFE, mafilimu oyera a PTFE, magiredi odana ndi malo amodzi, ndi malamba onyamula kutentha kwambiri - kuphimba chakudya, PV lamination, mabatire a lithiamu, zamagetsi, ndi ma CD. Chiwonetserochi chikudutsa pa June 26. Zogulitsa zonse zimagwirizana ndi makonda.

Nsalu zotentha kwambiri za PTFE zimakhala ndi magalasi apamwamba kwambiri a fiberglass ndi PTFE zokutira. Ntchito zazikuluzikulu zotumizira mafakitale (kuphika chakudya, kuyanika nsalu, zoyendera za PCB), chitetezo chowotcherera (zophimba zotchingira kutentha, zishango za spatter), kugwetsa ndi kupanga atolankhani otentha (kuumba mphira, PV lamination), kutchinjiriza magetsi (motor slot liners, zokutira zingwe), zomanga (madenga apabwalo, 30 + corrosion yazaka), mlengalenga (mabulangete otentha), ndi ntchito zapadera (kudula laser, kusindikiza kwa 3D).

Kuyanika ndi gawo lofunika kwambiri pakupanga nsalu za PTFE zotentha kwambiri. Zowonongeka zodziwika bwino ndi izi: kusweka (kuyanika mwachangu kwambiri, kupukuta khungu), kusuntha kwamadzi (tinthu tinthu tomwe timapita kumtunda, kulumikizana kofooka kwamkati), mapini / matuza (mpweya wotsekeka kapena nthunzi), mawanga oyera ndi choko (kusuntha kwa surfactant kapena kusakanizika kosakwanira), chikasu / kuphika (kutenthedwa kwa zowonjezera), delamination (kutsika kwapang'onopang'ono) shrinkage), pamwamba youma koma mkati monyowa (kukopa misampha chinyezi), ndi m'mbali zokhuthala (khofi-ring effect). Zothetserazo zimaphatikizapo mbiri yowumitsa bwino, mpweya wabwino, ndi kusamalidwa bwino kwa gawo lapansi.

Chodulidwa kumapeto kwa nkhope ya PTFE tepi yotentha kwambiri imakhudza kwambiri zomatira ndikukweza m'mphepete panthawi yogwiritsira ntchito. Kung'ambika kosakwanira (masamba osawoneka bwino, ngodya zosayenera) kumapanga ulusi wa guluu, kufewetsa zomatira m'mphepete mwake, ndikuwonetsa magalasi a fiberglass - zomwe zimapangitsa kutulutsa, kulumikizana kofooka, ndikutukuka pakutentha kapena kupsinjika. Nkhope zosawoneka bwino (zopindikira, zotuluka) zimayambitsa kugawanikana kosagwirizana, kuyendetsa zomatira kukwawa panthawi yosungira. Nkhope yabwino yomalizira imakhala yosalala, yotsekemera, komanso yopanda kuwonongeka - imagwira ntchito ngati chisindikizo chomwe chimatseka zomatira ndikuonetsetsa kuti pali mgwirizano wonse.

PTFE emulsion impregnation wa fiberglass nsalu amafuna othandizira osiyanasiyana kukwaniritsa ❖ kuyanika yunifolomu, adhesion amphamvu, ndi pamalo opanda chilema. Zowonjezera zazikulu ndizo: zonyowetsa (kuchepetsa kupsinjika kwa pamwamba, kupititsa patsogolo kulowa), thickeners (kuwongolera kukhuthala ndi kulemera kwa zokutira), zowongolera pH (kukhazikika emulsion pa pH 9-10), ma silane coupling agents (owonjezera kumamatira kugalasi), zothandizira kupanga mafilimu (PFA/FEP for sintering), zodzaza zogwira ntchito (zoletsa kubisala), ma pifonholes (kuteteza ma pifonholes), ma pifonholes (kuteteza) (kuchedwetsa kuyanika). Kusankhidwa kumatengera gawo lapansi komanso zofunikira pakuchita.

Pa PTFE tepi ❖ kuyanika, zosungunulira volatilization mlingo wa silikoni kuthamanga tcheru zomatira ndi yofunika ndondomeko chizindikiro. Kuthamanga kwambiri → kusenda pamwamba, kusayenda bwino, zibowo (zosungunulira zotsekeredwa), ndi ma craters (kuundana kapena kupangitsidwa ndi zoyipa). Kuchedwa kwambiri → kugwa, m'mphepete mwakuda, ndikunyowetsa pa PTFE yamphamvu yotsika. Njira yoyenera: kusinthasintha koyambirira kwapang'onopang'ono pakuwongolera ndi kuthawa kwa thovu, kenako kufulumizitsa kuyanika kuti mupange mawonekedwe. Gwiritsani ntchito zosungunulira zosakanizika (toluene/xylene + kuyanika mwachangu) ndi kutentha kwa uvuni wa gradient (otsika → sing’anga →pamwamba).