PTFE High-Temperature Tape ma FPC Ɔhyew Press Lamination Mfomso Siw Ano

Sɛ́ obi a ɔyɛ adwumaden a ɔyɛ PTFE teyp a ɛyɛ hyew kɛse no, Jiangsu Aokai New Materials ma wo nkyerɛkyerɛmu a ɛkɔ akyiri. Wɔ ɔhyew press lamination nhyehyɛe a Flexible Printed Circuit Boards (FPC), PTFE ɔhyew a ɛkorɔn teapɔn di sintɔ atitiriw abien ho dwuma — substrate wrinkling ne adhesive transfer — denam nsunsuanso a wɔaka abom a efi awosu mu nneɛma su (ahoɔden a ɛba fam wɔ soro, kɛse dimensional stability) ne optimized processing mfiridwuma (stacking nhyehyɛe nhyehyɛe, parameter control). Ɛyɛ adwuma sɛ nea eye sen biara a ɛho tew isolation layer  ne nhyɛso equalising buffer layer.

I. Nea ɛde Substrate Wrinkling ne Adhesive Transfer Ba

Substrate Wrinkling Nea ɛde ba no ntini ne ɔhyew ne nhyɛso a ɛnyɛ pɛpɛɛpɛ. FPC yɛ nneɛma pii te sɛ PI film, kɔbere foil ne adhesives a ɛsono coefficients of thermal expansion (CTE). Bio nso, circuit board nhyehyɛe mu nneɛma a kɔbere a ɛnyɛ pɛpɛɛpɛ ne stiffener anammɔn ka ho bɛma nhyɛso kyekyɛ a ɛnteɛ. Ɔhyew ne nhyɛso a ɛnyɛ pɛ ma nneɛma mu nhyɛso ba, na ɛde nwi, twitwiw ne delamination ba.

Adhesive Transfer (Residual Adhesive) Eyi fi interface ne nneɛma a ɛtɔ sin titiriw. Semi-cured adhesive a cover film ma lamination melts na ɛsen wɔ ɔhyew a ɛkorɔn ase, na ɛbata soro wɔ isolation nneɛma. Saa bere yi nyinaa, sɛ silicone nhyɛso-sensitive adhesive a wɔde akata PTFE tape akyi no nni ɔhyew a ɛko tia a ɛdɔɔso anaasɛ mismatched process parameters a, cohesive huammɔdi bɛba wɔ ɔhyew a ɛkorɔn mu, na ɛde adhesive fã bi bɛkɔ FPC ani.

II. Core Mechanisms of PTFE High Temperature Tape a Wɔde Siw Mfomso ano

Substrate Wrinkling a Wosiw Ano

Thermal shock isolation & uniform pressure distribution Wɔ gyinapɛn stacking nhyehyɛe mu: Hot plate → PTFE tape → silicone cushion → FPC → PTFE tape → Hot plate , PTFE tape yɛ adwuma sɛ release layer. Ne ɔhyew a ɛyɛ den a ɛma ɔhyew no hwɛ hu sɛ ɔhyew a ɛkɔ baabiara no yɛ pɛ. Bere a ɛne silicone buffer cushions yɛ biako no, ɛma adwennwen a ɔhyew a ɛsonosonoe ntrɛwmu de ba no fi hɔ na ɛma nhyɛso nyinaa kari pɛ, na ɛkwati mpɔtam hɔ nhyɛso dodow ne nwi a edi hɔ. Sɛ wopɛ sɛ wɔyɛ nneɛma a ɛyɛ pɛpɛɛpɛ kɛse a, wɔkamfo PTFE teapɔn a wɔde ahwehwɛ-fiber ahyɛ mu den a CTE a ɛba fam wom kyerɛ sɛ wɔmfa ntumi nnyina pintinn kɛse wɔ nsusuwii mu.

Stable thermal processing window PTFE layer no siw ɔhyew nkɛntɛnso tẽẽ ano. Sɛ wɔde silicone cushions mu ɔhyew hysteresis ka ho a, ɔhyew a ɛkɔ no yɛ brɛoo na ɛyɛ den. Ɛhwɛ interlayer ɔhyew nsonsonoe so wɔ ≤ 5 ~ 7 °C bere a adhesive gelling, ma mframa a wɔde fi mu koraa ansa na adhesive ayɛ no yare daa, na titiriw no eyi nwi a ɛnam gelling a ɛba ntɛm ne mframa a ɛkyɛ mu ba no fi hɔ. Wɔkamfo kyerɛ sɛ wɔhwɛ ɔhyew dodow a ɛwɔ ɔfã titiriw a ɛkɔ soro no so wɔ 4.5 ~ 5.0 °C / simma.

Adhesive Transfer a Woyi Fi Hɔ

Non-stick agyapade a ultra-low soro ahoɔden PTFE da soro ahoɔden a ɛba fam koraa (18 mN/m), a ɛba fam koraa sen nea ɛwɔ molten resin ne adhesives. Ɛnam sɛ ɛyɛ adwuma a ɛkyɛn so a ɛnyɛ nnam a ɛte sɛ aduannoa a ɛnyɛ nnam nti, wobetumi ayi no ntɛm wɔ lamination akyi a wɔrensɛe FPC substrates anaasɛ wonnyaw gluu a aka.

High-performance adhesive system selection Sɛnea ɛbɛyɛ a wɔbɛkwati sɛ wɔde teyp no bɛkɔ baabi foforo a ɛyɛ ne ho no, ɛsɛ sɛ wɔfa PTFE teapɔn a wɔde silicone pressure-sensitive adhesive a ɛyɛ papa ayɛ no tom. Premium silicone adhesive kura adwumayɛ a ɛyɛ pintinn wɔ 260 °C, hwɛ hu sɛ zero residual glue wɔ bere tenten a ɛkɔ so yɛ. Ɛsɛ sɛ ɔhyew a ɛko tia grade no di nhyehyɛe ahwehwɛde ahorow ho dwuma koraa (210–260 °C).

Nneɛma a Wɔde Ntama Nneɛma a Wɔde Yɛ Adwuma Koraa Bere a wɔrekata Aokai PTFE teyp so na wɔreyɛ no, bere a ɛmfata a wɔde sa yare, ɔhyew anaa ahoɔhare a wɔde tu mmirika no bɛma wɔde ntama a wɔde kyekyere nneɛma ho no ayɛ nea enni mũ, na ɛno nso de nkataho a aka ho haw ahorow ba wɔ akyiri yi a wɔde bedi dwuma no mu.

Atifi hɔ nsɛm no yɛ nea Jiangsu Aokai New Material Technology Co., Ltd. na ɛde mae.

Sɛ wuhia nsɛm foforo fa afiri no ho nsɛm, dwumadie tebea ne ano aduru a wɔayɛ ama yɛn nneɛma nyinaa ho, a PTFE ntama a ɛyɛ hyew a ɛkorɔn, PTFE ɔhyew a ɛkorɔn teyp, PTFE ɔhyew a ɛkorɔn mesh abɔso, seamless fusing mfiri abɔso, ntama a wɔde PTFE akata so a ɛwɔ afã biako, conveyor belt a ɛko tia ɔhyew a ɛkorɔn ne ahwehwɛ fiber ntama a ɛko tia ɔhyew a ɛkorɔn, ka ho a. yɛsrɛ sɛ ntwentwɛn wo nan ase sɛ wobɛka yɛn ho asɛm:

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