Nkan yii ni wiwa awọn afihan iṣẹ ṣiṣe pataki fun teepu iwọn otutu giga PTFE ti a lo ninu ibora igbale, itọju ooru igbale ati awọn agbegbe ti o jọra. Awọn ibeere bọtini yato pupọ si lilo oju aye: ijade jade jẹ pataki julọ (TML≤1%, CVCM≤0.1%; Aerospace/optical grades nilo TML≤0.5%, CVCM≤0.01%); otutu resistance gbọdọ wa ni wadi fun awọn mejeeji PTFE sobusitireti (260°C) ati alemora Layer; PSA silikoni kekere ti njade ni mimọ ni a nilo lati ṣe idiwọ ibajẹ siloxane; agbara imudani iwọn otutu ti o ga julọ ṣe idilọwọ jijoko ati gbigbe eti; mimọ nbeere ko si sisọ okun ati akoonu ionic kekere; teepu anti-aimi (resissitivity dada 10⁶-10⁹ Ω/sq) ṣe idiwọ ibajẹ ESD; resistance pilasima gbọdọ jẹ iṣiro fun sputtering / PECVD awọn ilana; isunki gbona ni isalẹ 2% ṣe idaniloju konge masking.

Nkan yii ṣe afiwe iwọn otutu-yara ati idagbasoke otutu otutu ti silikoni titẹ-kókó alemora fun teepu PTFE. Iwọn otutu ti o ga julọ (120-180 ° C) ṣẹda awọn nẹtiwọọki isopopo ipon pẹlu agbara isọdọkan to lagbara, idilọwọ iyoku alemora lẹhin peeli. O ṣe agbekalẹ awọn iwe ifunmọ kemikali pẹlu awọn sobusitireti PTFE nipasẹ iṣakojọpọ alakoko, imukuro awọn eewu delamination. Iwọn otutu otutu ti o ga julọ tun yọkuro awọn iyipada kekere-molekula ṣaaju ki o to ifijiṣẹ, idilọwọ bubbling ati silikoni epo konti lakoko alapapo akọkọ.

Itọsọna yii ni wiwa teepu iwọn otutu giga PTFE fun didimu abẹrẹ ati awọn ohun elo egboogi-stick. Aṣayan ti o da lori iwọn otutu: ≤260 ° C fun awọn pilasitik gbogbogbo (teepe PSA silikoni, 0.13-0.18mm); 260-300 ° C fun awọn pilasitik imọ-ẹrọ otutu bi PC, PA66, POM (adhesive silikoni giga-giga, 0.18-0.25mm); 300-400°C fun PEEK, LCP, PPS nitosi awọn asare gbona (teepu alemora kuna; lo asọ PTFE ti ko ni alemora tabi fiimu PFA). Aṣayan ti o da lori ohun elo: awọn ohun elo tacky nilo itusilẹ giga-itumọ PTFE mimọ; gilasi / ohun alumọni ti o kun awọn ohun elo nilo iṣẹ ti o wuwo 0.25mm + teepu sooro asọ; awọn afikun ibajẹ beere alemora sooro kemikali ati sobusitireti ipon; aimi-kókó ohun elo nilo egboogi-aimi dudu teepu PTFE.

Aṣọ fiberglass ti a bo PTFE jẹ lilo pupọ ni iṣelọpọ roba fun resistance ooru rẹ, ohun-ini ti kii ṣe igi, ati ija kekere. Awọn ohun elo bọtini pẹlu: awọn ẹrọ itusilẹ fun vulcanization awo / igbale ati mimu taya taya; awọn igbanu conveyor ti kii-stick fun awọn ọlọ ṣiṣi, awọn kalẹnda, ati awọn laini itutu; interleave asọ fun ologbele-pari ibi ipamọ roba; mimu pataki ti silikoni ati fluororubber; ati adiro Trays fun ranse si-curing. Awọn anfani pẹlu imukuro ifaramọ mimu, idinku lilo aṣoju itusilẹ, idilọwọ wiwu rola, ati idaniloju didimu didan.

Teepu PTFE fun paipu kemikali / ohun elo anti-corrosion, ti kii-stick, ati aabo idabobo nilo sobusitireti ti o baamu, eto alemora, ati media kemikali. Silikoni PSA ni a ṣe iṣeduro fun 200-260 ° C pẹlu acids / alkalis; PSA akiriliki tako awọn nkan ti ara ẹni ṣugbọn o fi opin si iwọn otutu si ≤150°C. Fun HF, farabale>80% alkali, tabi chlorine trifluoride, lo PTFE-nikan lining (ko si Organic alemora). Lominu ni: alemora jẹ ọna asopọ alailagbara, kii ṣe PTFE funrararẹ.

Agbara idaduro teepu PTFE ti ni ilọsiwaju nipasẹ ibora ati iṣapeye ilana imularada. Aso: alakoko Layer (0.5-2μm silane alakoko idilọwọ alemora peeling), alemora sisanra 30-60μm (ti aipe fun dani agbara), igbale defoaming, ati 5-10μm ase. Itọju: alapapo stepwise (80-100 ° C yiyọ iyọkuro → 120-140 ° C murasilẹ → 150-220C jin crosslinking), post-curing (40-60 ° C fun 24-48h lati sinmi wahala), ati gbigbe ẹdọfu kekere lati ṣe idiwọ wahala inu lati idinku sobusitireti. Alakoko jẹ pataki fun agbara dada kekere ti PTFE.

Teepu iwọn otutu giga PTFE n ṣiṣẹ bi ohun elo to ṣe pataki ni iṣelọpọ semikondokito, kii ṣe ohun elo gbogboogbo-idi. Awọn ohun elo bọtini: Idaabobo ipele-wafer (pilasima etching masking, CMP backside Idaabobo, CVD/PVD masking), awọn ilana iṣakojọpọ (imuduro asopọ okun waya, boju-boju tita fun awọn PCBs), ati itọju ohun elo (fidi rola anti-aimi, isamisi yara mimọ). Ultra-mimọ awọn ibeere: kekere halogens (idinamọ mnu paadi ipata), kekere siloxanes (<500 ppm, idilọwọ insulating patiku Ibiyi), kekere irin ions (<1 ppm kọọkan), ISO Class 4 cleanroom slitting / apoti, 10⁶-10⁹ Ω dada resistivity, ati kekere TVOC itujade.

Teepu iwọn otutu giga PTFE ti iṣoogun daapọ sobusitireti PTFE bioc ibaramu pẹlu alemora silikoni ti a mu-iwosan Pilatnomu. Awọn ẹya pataki: ISO 10993 ibamu (ko si cytotoxicity, ifamọ, tabi irritation), duro sterilization leralera (steam/EO/gamma), 260°C ooru resistance. Awọn iṣọra to ṣe pataki: maṣe kọja 260°C (awọn eefin majele ti o ga ju 300°C), irradiation gamma le fa embrittlement, fọwọsi awọn ọna sterilization, ati beere awọn iwe ibamu ni kikun (awọn ijabọ ISO 10993, MSDS, data ti ogbo). Kii ṣe fun ẹjẹ taara tabi lilo gbingbin ayafi ti ifọwọsi ni pataki.

PTFE teepu reusability da lori mẹrin ifosiwewe: alemora siseto (giga crosslink iwuwo, kekere silikoni ijira, microphase be fun repositionable tack), sobusitireti anchoring (dada dada + alakoko lati se ni kikun alemora gbigbe), backside bo (itusilẹ Layer lati dabobo alemora nigba unwinding), ati ki o to dara mu (mimọ adhesive adhesive dada). Awọn alemora ti a ṣe atunṣe ti omi-fọ le gba pada> 90% tack lẹhin mimọ.

Teepu PTFE ni iwọn otutu jakejado nilo PSA silikoni ti o ṣetọju ifaramọ lati -70°C si 260°C. Awọn eroja apẹrẹ bọtini: Layer iyipada-anchored alakoko (idilọwọ delamination), microstructure okun-erekusu (MQ resini erekusu + polysiloxane lemọlemọfún alakoso), gradient crosslinking (ga-iwuwo akojọpọ Layer fun irako resistance, kekere-iwuwo lode Layer fun kekere-temp tack), ati ooru-imuduro fillers (cerium oxide resistance). Awọn abala siloxane ti a ti yipada Phenyl ṣe didi kirisita ni iwọn otutu kekere, n mu irọrun ṣiṣẹ ni isalẹ -100°C.