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 kuzamura 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). Biratinda 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 butakaza gufatira nyuma yo gukoreshwa inshuro nyinshi kubera kwanduza hejuru (ivumbi, amavuta ya silicone), kunanirwa gufatana hamwe (ibisigara), cyangwa guhuza insimburangingo. Igisubizo: silicone-ihuza cyane ya silicone PSA (kwimuka gake, kuringaniza tack / gufata imbaraga), kuvura primer kuri substrate ya PTFE, gufunga fiberglass yuzuye, no gufata neza (hejuru yisuku, igishishwa gikonje, 180 ° inguni). Igeragezwa ryinshi ryemeza iterambere.

Kanda ya PTFE yubushyuhe bwo hejuru yabitswe muburyo bwa muzingo irashobora kubabazwa no gufatana hagati (guhagarika) no kwimura ibiti kuruhande rutari inkoni. Imizi itera: PTFE firime ya elastique yibuka na silicone PSA igenda munsi yumuvuduko nubushyuhe. Igisubizo: gahoro gahoro ihindagurika - ifatanye kumurongo winyuma, irekuye kumurongo wimbere - ukoresheje kugenzura gufunga-gufunga. Uzuza hamwe no gusohora, kubika neza (15-40 ° C, 30-70% RH), gushyira kuri horizontal, no kuzunguruka buri gihembwe.

PTFE yubushyuhe bwo hejuru bukoreshwa muguhuza ibiryo bigomba kubahiriza imipaka yubushyuhe bukabije: ≤260 ° C kugirango ikoreshwe ubudahwema (nta gihe ntarengwa), 260-300 ° C muminota 30 gusa, na> 300 ° C birabujijwe. Kaseti ni iy'itumanaho ritaziguye gusa (tray liners, igifuniko cy'ubushyuhe), ntabwo ipfunyika ibiryo. Ntuzigere ukora udafite umutwaro wibiryo (gushyushya byumye). Simbuza niba byijimye, umuhondo, cyangwa wambaye.

Silicone yumuvuduko ukabije (PSA) kuri kaseti ya PTFE yubushyuhe bwo hejuru iratandukanye cyane mubikorwa byo gusaza cyane. Methylphenyl silicone PSA igumana> 85% imbaraga zishishwa nyuma yiminsi 250 ° C / 7, mugihe ubwoko bwa methyl busanzwe bugabanuka kugera kuri 50-70%. Sisitemu yongeyeho (hydrosilylation) itanga ihame ryiza kuruta peroxide-yakize. Kumurimo uhoraho 200 ° C +, hitamo inyongera-yakize-amanota menshi.

Amashanyarazi ya PTFE yerekana ubushyuhe (PSA) kaseti igomba gukora ubushyuhe mugihe ikomeje. Ongeraho ibyuzuza bitezimbere ubushyuhe bwumuriro ariko bikomeretsa gufatira. Impirimbanyi nziza ikoresha uduce duto duto (nka skeleton yuyobora) ivanze nuduce twiza (kugirango twuzuze icyuho), igumane ibyuzuye byuzuye hejuru yurwego rwa percolation. Irinde flake na fibre; Bica tack.

PTFE yubushyuhe bwo hejuru ikorera inganda za PV mubikorwa bibiri bitandukanye: inzira ikoreshwa (irinda EVA kurengerwa na laminator, mask yo kugurisha) hamwe no kuramba kuramba (gupfunyika busbar, guhuza agasanduku). Kugirango ukoreshe imbere imbere, kaseti igomba kunyura IEC 61215: 1000-2000h ubushyuhe butose, UV, gusiganwa ku magare (-40 ° C kugeza + 85 ° C), hamwe na silicone PSA no kugabanuka <1%.

PTFE yubushyuhe bwo hejuru ikoreshwa mubyuma bifunga ubushyuhe hamwe nudupapuro twa kashe bitanga indangagaciro enye zingenzi: irinda ifumbire ya pulasitike yashongeshejwe (ikuraho igihe cyo gutaha), irinda kashe ihenze ipfa, ihuriza hamwe ubushyuhe / umuvuduko kubidodo bihoraho, kandi bigabanya ubukana bwa firime. Birasabwa gufata kaseti ya fibre (0.13-0,25 mm) hamwe na silicone PSA (≥260 ° C). Anti-static umukara kaseti kumirongo yihuta.