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.

PTFE yubushyuhe bwo hejuru yabitswe mubihe byagenwe (10-25 ° C, 40-70% RH, kure ya UV / umuvuduko ukabije) ifite ubuzima busanzwe bwamezi 3-6 (amanota yo hejuru kugeza kumezi 12). Inzira nyamukuru yo gutesha agaciro: imbaraga zishishwa ntizigomba kugabanuka munsi ya 70% yagaciro kambere; nta bisigara bifata nyuma yo gukuraho ubushyuhe bwo hejuru; nta karuboni cyangwa gucika ku bushyuhe bwagenwe. Igenzura ryihuse: intoki idashaka, 260 ° C ikizamini gisigaye, hamwe nikizamini cyo kugabanuka.

Kasete ya PTFE irashobora guteza imbere guhuza (guhagarika) no kwimura mugihe cyo kubika igihe kirekire. Impamvu: PTFE firime ya elastique yibuka na silicone PSA kunyerera munsi yumuvuduko / ubushyuhe. Kwirinda: guhindagurika gahoro gahoro (hanze yimbere, irekuye imbere) mugihe cyo gukora, hiyongereyeho igipfundikizo cyo kurekura kuruhande rudafatanye. Ubike kuri -15 ° C kugeza 40 ° C, 30-70% RH, utambitse kumurongo, uzunguruka buri gihembwe. Ku manota manini yometseho, ongeramo impapuro zisohora hagati yuburyo.

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 kumyuma ifunga ubushyuhe hamwe nudupapuro twa kashe itanga indangagaciro enye zingenzi: irinda ifumbire ya pulasitike yashonze (ikuraho igihe cyo hasi), irinda kashe ihenze ipfa, ihuza ubushyuhe / umuvuduko wa kashe ihoraho, kandi igabanya 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.

Inzitizi y'amazi ya barrière ya PTFE ifata kaseti igenwa cyane cyane nubusembwa (micropores, microcrack, fibre fibre) aho kuba hydrophobicity ya PTFE. Filime nziza ya PTFE itanga gusa WVTR yo hagati. Ibice byinshi byuzuzanya hamwe na lamellar yuzuza (mika, ibirahuri by'ibirahure) bitera labyrint, bigabanya cyane kwanduza imyuka. Kugirango ushireho ubuhehere bwinshi, vuga neza.