PTFE high-temperature tape siamtu professional Jiangsu Aokai New Materials chuan professional kaihhruaina a share a ni. Vacuum coating, vacuum heat treatment leh vacuum environment dang danga hman a nih chuan PTFE high-temperature tape hian boruak lama hmanna nena khaikhin chuan core performance mamawh a inang lo hle. Outgassing tlem, volatile emission tlem leh faina sang hi ngaih pawimawh ber a ni. Evaluation tur key indicator te chu hetiang hian tarlan a ni:
Hei hi vacuum application atana performance index thutlukna siamtu a ni. Pressure hniam leh temperature sang hnuaiah chuan tape hian volatile gas a chhuah ang a, chu chuan vacuum degree a tichhe thei a ni. Condensed volatiles hian optical components, sputtering target leh workpiece te a ti bawlhhlawh a, chu chuan foggy coatings, film adhesion tha lo leh product rejection tluantling thlengin a siam a ni.
· Total Mass Loss (TML): A mamawh tlangpui TML ≤ 1.0%; aerospace leh optical industry-a hmanraw sang tak takte chuan TML ≤ 0.5% an mamawh a ni.
· Volatile Condensable Materials (CVCM) khawlkhawm: Uluk taka control theih, a tlangpuiin CVCM ≤ 0.1%; ultra-rigid scenario-ah chuan CVCM ≤ 0.01% a ngai a ni.
2. Temperature laka inven theihna Grade
· Service temperature chhunzawm zel: PTFE tape-a PTFE-a khuh fiberglass substrate hian 260°C-a hun rei tak a awm chuan a tuar thei a ni. Mahse, adhesive layer-a temperature resistance chu a rualin a finfiah a ngai a ni. Conventional silicone PSA hian 200°C vel ah heat resistance a pe chhunzawm zel a, high-performance silicone adhesive hian 260°C a thleng thei bawk.
· Hun rei lote chhunga peak temperature: Processing laiin instantaneous peak temperature te hian tape-a hun rei lote chhunga thermal limit (a tlangpuiin ≤300°C) a pel em tih enfiah thin ang che. Temperature tam lutuk chuan adhesive layer chu carbonize in a ti chhe ang a, vacuum chamber chhungah bawlhhlawh nasa tak a siam ang. Note: Vacuum heat treatment temperature chu 260°C aia hla a nih chuan PTFE tape hman theih a ni tawh lo; polyimide (Kapton) tape emaw aluminium foil tape emaw hmang zawk tur a ni.
3. Adhesive Type & Temperature sang taka vawn theihna
· Adhesive system thlan dan: Silicone pressure-sensitive adhesive hi vacuum hmanna atana hmanraw pawimawh ber a ni a, a chhan chu heat resistance a sang zawk vang a ni. Chuti chung pawh chuan, silicone adhesive pangngaiah hian low-molecular siloxanes a tam hle a, chu chu high-temperature vacuum hnuaiah a volatilize a, workpiece te, a bik takin optical surface leh electrical contact area te a ti bawlhhlawh a ni. Chuvangin, a bik taka tihthianghlim low-outgassing silicone adhesive emaw non-silicone adhesive formulation emaw a ngai a ni.
· High-temperature holding power: Vacuum leh high-temperature condition inzawm hnuaiah chuan creep, edge lifting emaw tape full peeling emaw hian vacuum pipeline direct-in a block ang a, contamination source thar a rawn luh tir ang. Operating temperature-a shear holding hun chhung chu validate a ngai a ni.
4. Faina & Ionic Contamination
· Cleanroom compatibility: Tape hi a cutting edge-ah fiber shedding leh lint awm lo tur a ni. Cleanroom facility-a siam tape te hi duh zawk a ni.
· Ionic content hniam: Semiconductor leh MEMS industry-a vacuum process atan chuan tape-a awm halogen ion (Cl) leh metal ion (Na, K) te chu temperature sang takah a tla ang a, circuit a tichhe ang a, doping concentration a tidanglam ang. Supplier te hnen atangin ionic extractables test report dil rawh.
· Zero silicone oil migration: Condensable volatiles tih lohah chuan adhesives chhunga free silicone oil te hian surface hrang hrangah a creep thei a, a hnu lama bonding leh welding process-ah te a hlawhchham thei bawk. Thil pawimawh tak tak hmanna atan zero silicone oil migration grade tarlang rawh.
5. Lei chunglam Anti-Static Performance a ni
PTFE hi a pianphungah chuan high-insulation material a ni. Static charge hi awlsam takin a chung lamah friction emaw vacuum chamber chhunga peeling emaw hmangin a pung khawm thin. Electrostatic discharge hian electronic component sensitive tak tak a tichhia thei a, particulate pollutants a hip thei bawk.
· Indicator mamawh: Electrostatic-sensitive zone-te shielding leh venhimna atan chuan anti-static PTFE tape a ngai a, surface resistivity 106 ~ 109 Ω/sq inkar a ni a, high-temperature exposure hnuah pawh stable anti-static performance a awm reng tur a ni.
6. Plasma & Chemical laka inven theihna
· Plasma resistance: Sputtering leh PECVD process-ah chuan plasma boruak-a tape exposed chu etched a ni ang a, fluorine free radicals a chhuak ang a, chu chuan deposited films a ti bawlhhlawh ang a, vacuum chambers a tichhe bawk ang. A hman theih dan tur chu a hmain enfiah la, a tul chuan plasma-resistant polyimide tape tam zawkah thlak rawh.
· Chemical resistance: Vacuum heat treatment-ah hian oil vapor leh cleaning solvent awmsa a awm thei a; adhesive leh substrate pahnih hian swelling leh chemical reaction te chu an do thei tur a ni.
7. Dimensional Stability & Thermal atanga a tlahniam zat
Temperature sang takah thermal shrinkage tam lutuk hian masked edges a pholang ang a, adhesive wrinkles a siam ang a, masking precision leh conformability a tichhe ang.
· Indicator mamawh: Thil siamtute thermal shrinkage data pek (260°C-a minute 30 hnua test) te enfiah leh rawh. Premium vacuum-grade tape hian shrinkage 2% aia hniam emaw a aia hniam emaw pawh a ti thei.
Vacuum environment atana PTFE high-temperature tape lei hian heat resistance chauh hi a tawk lo. Supplier te hnen atangin ASTM E595 outgassing test report dil la, vacuum service condition chiang takin sawi la, silicone adhesive thianghlim nei specialized low-outgassing tape dil bawk ang che. Critical production process atan chuan small-scale coupon testing neihpui la, vacuum gauge-a pressure inthlak danglamna (partial pressure fluctuation) tehna tur leh thil siam zawh tawha bawlhhlawh awm thei te tehna tur a ni.
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