Imyenda ya PTFE isize fiberglass ikoreshwa cyane mugutunganya reberi kugirango irwanye ubushyuhe bwayo, umutungo udafite inkoni, hamwe no guterana amagambo. Porogaramu z'ingenzi zirimo: kurekura imirongo ya plate / vacuum vulcanisation no kubumba amapine; imikandara ya convoyeur idakoreshwa kumashini ifunguye, kalendari, n'imirongo ikonjesha; guhuza imyenda yo kubika igice cyarangije kubikwa; uburyo bwihariye bwo gukora silicone na fluororubber; n'itanura ry'itanura ryo gukira. Inyungu zirimo kuvanaho ifumbire mvaruganda, kugabanya imikoreshereze yabashinzwe kurekura, kwirinda kuzinga, no kwemeza neza.

PTFE kaseti ya miyoboro / imiyoboro irwanya ruswa, idafite inkoni, hamwe no kurinda kashe bisaba guhuza substrate, sisitemu yo gufatira hamwe, hamwe nibitangazamakuru byimiti. Silicone PSA irasabwa 200-260 ° C hamwe na acide / alkalis; acrylic PSA irwanya ibishishwa kama ariko igabanya ubushyuhe kuri ≤150 ° C. Kuri HF, guteka> 80% alkali, cyangwa chlorine trifluoride, koresha umurongo wa PTFE gusa (nta gufatira kama). Icyitonderwa: ibifatika ni ihuriro ridakomeye, ntabwo PTFE ubwayo.

PTFE kaseti ifata imbaraga itezimbere hakoreshejwe gutwikira no gukiza inzira nziza. Igipfundikizo: primer layer (0.5-2μm silane primer irinda gukuramo ibishishwa), uburebure bwa 30-60 mm (byiza gufata imbaraga), kwanduza vacuum, no kuyungurura 5-10 mm. Gukiza: gushyushya intambwe (80-100 ° C gukuramo ibishishwa → 120-140 ° C gushiraho → 150-220 ° C guhuza byimbitse), gukira nyuma (40-60 ° C kuri 24-48h kugirango ugabanye imihangayiko), hamwe no gutwarwa nubushyuhe buke kugirango wirinde guhangayika imbere kugabanuka. Primer ningirakamaro kububasha buke bwa PTFE.

PTFE yubushyuhe bwo hejuru ikora nkibikoresho byingenzi mubikorwa bya semiconductor, ntabwo ari intego rusange ikoreshwa. Porogaramu zingenzi: kurinda urwego rwa wafer (mask ya plasma etching, kurinda inyuma ya CMP, guhisha inyuma ya CVD / PVD), uburyo bwo gupakira (gukosora insinga, kugurisha masike ya PCBs), no gufata neza ibikoresho (gufunga anti-static roller, gupfunyika isuku). Ibisabwa cyane-bisukuye: halogene nkeya (irinda kwangirika kwangirika), siloxane nkeya (<500 ppm, irinda insuline yibice), ion nkeya yicyuma (<1 ppm buri umwe), ISO yo mu cyiciro cya 4 cyogusukura / gupakira, 10⁶-10⁹ resist kurwanya ubukana bwa TVOC.

Icyiciro cyubuvuzi PTFE yubushyuhe bwo hejuru ikomatanya biocompatible PTFE substrate hamwe na platine yakize ya silicone. Ibyingenzi byingenzi: ISO 10993 yubahiriza (nta cytotoxicity, sensibilisation, cyangwa kurakara), irwanya sterisizasiya inshuro nyinshi (steam / EO / gamma), 260 ° C irwanya ubushyuhe. Icyitonderwa gikomeye: nturenze 260 ° C (umwotsi wuburozi uri hejuru ya 300 ° C), imirasire ya gamma irashobora gutera uburibwe, kwemeza uburyo bwo kuboneza urubyaro, no gusaba ibyangombwa byuzuye (raporo ya ISO 10993, MSDS, amakuru ashaje). Ntabwo ari kumaraso ataziguye cyangwa gukoreshwa keretse byemejwe neza.

Gukoresha kaseti ya PTFE biterwa nimpamvu enye: gushiraho ifatizo (ubwinshi bwambukiranya imipaka, kwimuka kwa silicone nkeya, imiterere ya microphase kugirango isubirwemo), substrate anchoring (surface activation + primer kugirango wirinde kwimura neza), gutwikira inyuma (kurekura ibice kugirango urinde ibifata mugihe utabishaka), hamwe no gufata neza (hejuru yubushuhe bukwiye). Amazi yogejwe n'amazi yahinduwe arashobora gukira> 90% tack nyuma yo gukora isuku.

Ubushuhe bugari bwa PTFE kaseti isaba silicone PSA ikomeza gufatana kuva kuri 70 ° C kugeza 260 ° C. Ibintu by'ingenzi byashushanyijeho: primer-anchored layer layer (irinda gusiba), microstructure yo mu kirwa cyo mu nyanja (MQ resin birwa + polysiloxane ikomeza icyiciro), guhuza buhoro buhoro (urwego rwimbere rwimbere rwo guhangana n’ibikururuka, urwego ruciriritse rwo hasi rwihuta), hamwe nuzuza ubushyuhe (okiside ya cerium). Igice cya fenyl cyahinduwe na siloxane irwanya ubushyuhe buke bwo korohereza ibintu, bigatuma ihinduka ryoroshye -100 ° C.

Gukata kumpera yimiterere ya PTFE yubushyuhe bwo hejuru cyane bigira ingaruka zifatika zifatika hamwe no guterura impande mugihe cyo kubisaba. Kunyerera nabi (blade idahwitse, inguni idakwiye) itera kole ya kole, ikanagabanya impande zombi zifata neza, kandi ikagaragaza ibibyimba bya fiberglass - biganisha ku gucika intege, guhuza imbaraga, no guterura munsi yubushyuhe cyangwa impagarara. Isura yanyuma idasanzwe (wavy, isohoka) itera gukwirakwiza umuvuduko muke, gutwara ibinyabiziga bifata mugihe cyo kubika. Isura nziza yanyuma isa neza, ihindagurika, kandi nta byangiritse - ikora nk'ikidodo gifunga ibifatika kandi kigahuza impande zose.

Mugihe cya kaseti ya PTFE, igipimo cya volatilisation yumuti wa silicone yumuvuduko ukabije ni ikintu gikomeye. Byihuta cyane → uruhu rwo hejuru, kuringaniza nabi, pinholes (umutego wafashwe), hamwe na crater (kondegene cyangwa iterwa n'umwanda). Gutinda cyane → kugabanuka, impande zibyimbye, no gutonyanga hejuru-imbaraga-PTFE. Ingamba nziza: gahoro gahoro guhindagurika kugirango uringanize kandi uhunge, hanyuma byihuta byumye kugirango bibe. Koresha imvange ivanze (toluene / xylene + yumisha vuba) hamwe nubushyuhe bwa feri ya gradient (hasi → hagati → hejuru).

PTFE yubushyuhe bwo hejuru ifite imbaraga zo kurwanya umunyu mwinshi, ariko ingingo zintege nke nigice gifatika hamwe na fibre yububiko. Uburyo bwo gusuzuma: 1000h yumunyu utagira aho ubogamiye (NSS), gupima imbaraga zo kugumana imbaraga (≥80% bisabwa), inenge zigaragara (guterura, kubyimba), hamwe no kwangirika kwicyuma. Kubidukikije byo mu nyanja n’umunyu mwinshi: koresha silicone PSA (ntabwo ari acrylic), insimburangingo ya PTFE yuzuye, impande zombi zifunga kashe idashobora guhangana nikirere, hanyuma ushyire primer hejuru yicyuma.