Mfitiaseɛ Adeyɛ Flow ma Impregnating Fiberglass Ntama ne PTFE Emulsion

Jiangsu Aokai New Materials, a ɛyɛ adwumayɛfo a wɔyɛ PTFE ntama a ɛyɛ hyew kɛse no de nnianim asɛm a edi mũ ma. Adeyɛ a wɔde PTFE apete fiberglass ntama bɛhyɛ mu no ne mfiridwuma titiriw a wɔde kata polytetrafluoroethylene so pɛpɛɛpɛ na wɔde sinter wɔ fiberglass substrate so, na ɛyɛ nneɛma a wɔabom ayɛ a ɛda ɔhyew a ɛkorɔn a ɛko tia, anyinam ahoɔden a wɔde siw ano ne adwumayɛ a ɛnyɛ nea ɛbata so adi. Wɔde nneɛma a ɛtete saa di dwuma kɛse wɔ laminates a wɔde kɔbere adura ho a ɛyɛ frequency kɛse, conveyor belts a ɛyɛ hyew a ɛnyɛ nea ɛbata ho, adansi membrane nneɛma ne mfuw afoforo mu.

Mfitiaseɛ dwumadie a ɛdi mũ no wɔ anammɔn titire ason sɛdeɛ ɛdidi soɔ yi:

1. Fiberglass Ntama a Wɔde Yɛ Adwuma (Dewaxing / Desizing) .

Eyi ne anammɔn a ɛho hia sen biara a wɔyɛ ansa na wɔasa no yare. Wɔde ade a wɔde kyerɛ ntama kɛse (titiriw paraffin wax, starch a wonya fi mu) kata fiberglass nhama so bere a wɔrepam no; sɛ wɔayi afi hɔ koraa a, ɛbɛsɛe nkitahodi a ɛda PTFE ne ahwehwɛ nhama ntam no kɛse.

· Ɔkwan titiriw a wɔfa so sa yare: Ntama no kɔ so fa fononoo a ɛyɛ hyew kɛse mu ma ɔhyew dewaxing wɔ 350 ~ 400 ° C, oxidizing koraa na porɔw organic sizing agents nyinaa.

· Sɛnea wodi ho dwuma akyi: Wɔma ntama a wɔayi wax no ayɛ nwini, ɛtɔ mmere bi a wɔde nsu pa anaa nnuru a wɔde siw ano hohoro mu de yi nsõ a aka no fi hɔ, afei wɔyow ma wonya ntama fitaa a ɛho tew a ɛnyɛ hwee a wɔasiesie sɛ wɔde bɛhyɛ mu.

2. PTFE Emulsion Nnuru a Wɔde Yɛ Adwuma

· Raw material: Concentrated PTFE apete a gyinapɛn solid content bɛyɛ 60%.

· Mixing kwan: Dilute stock dispersion ne deionized nsu to botae concentration (40%–55%) gyina ahwehwɛde resin loading ne impregnation viscosity. Wɔde surfactant a ɛfata ka ho na ama nsuo a ɛyɛ adwuma wɔ fiberglass so no ayɛ kɛseɛ; wobetumi de thickener ahyɛ mu de asiesie viscosity bere a ɛho hia no.

3. Nnua a wɔde hyɛ nipadua mu

Botae titiriw no ne PTFE emulsion a ɛbɛkɔ fiber bundles ne ntama a wɔanwene no ntam koraa.

1. Dip-Squeeze Method (Wɔfa so kɛse): Wɔkyerɛ ntama no kwan fa nsu mu rollers mu ma ɛkɔhyɛ emulsion tank no mu koraa, afei ɛfa squeeze rollers abien mu. Wɔnam roller nip nhyɛso a wɔsesa ma ɛtwetwe emulsion a ɛboro so na wɔkyekyɛ resin pɛpɛɛpɛ no so na ɛhwɛ coating mu duru so.

2. Doctor Blade Coating: Wɔde emulsion trɛw ntama no ani denam dade blades, a ɛfata ma high-viscosity dispersions.

4. Nneɛma a wɔma ɛyow

Ntama a wɔde ahyɛ mu ma no hyɛn fononoo a ɛyɛ hyew a ɛba fam a ɛyɛ adwuma wɔ 100~150°C mu.

· Botae: Fa nsu ne nneɛma a ɛwɔ soro no fã bi yɛ nwini brɛoo, na yɛ PTFE nneɛma nketenkete a ɛyɛ dry film a ɛnyɛ tacky mpo wɔ fiber ani.

· Temperature control note: Ɔhyew a ɛkɔ soro dodo bɛma ayɛ dense surface film ntɛmntɛm, akyere emu nsu a ɛyɛ vaporizes ma ɛyɛ pinholes ne blisters.

5. Sintering (Ɔhyew a Wɔde Yɛ Aduru) .

Wɔde ntama a ayow no gu fononoo a ɛyɛ hyew a ɛkɔ soro mu ntɛm ara ma wɔde yɛ ɔhyew a ɛyɛ 360~390°C (ɛkɔ 400°C ma grade ahorow bi).

· Adwinnade: PTFE yɛ thermoplastic polymer. Wɔ ɔhyew a ɛboro ne nwene (327°C) so koraa no, PTFE nneɛma nketenkete no nwene, ɛsen na ɛyɛ pɛpɛɛpɛ ma ɛyɛ sini a ɛkɔ so, na ɛma mfiri a ɛka bom na ɛbata fiberglass ani.

· Stage mpaapaemu: Wɔakyekyɛ sintering beae no mu ayɛ no ɔhyew ramp, daa-ɔhyew sintering ne onwini afã horow de awerɛhyem koraa particle fusion a ɔhyew degradation.

6. Multi-Cycle Nsuo & Sintering

Impregnation-sintering cycle biako pɛ na ɛma wonya ade a ɛyɛ tratraa kɛse a ɛyɛ mmerɛw sɛ pinhole mu sintɔ ahorow bɛba. Sɛnea ɛbɛyɛ a wobedu botae coating thickness ne resin content (sɛ nhwɛso no, 45%–65% resin loading ma high-frequency kɔbere-clad laminate substrates), wɔsan yɛ impregnation → drying → sintering nnidiso nnidiso nyinaa  mpɛn 2 kosi 4 anaa nea ɛboro saa. Kyinhyia biara hyɛ nhama a ɛda ntam no ma bio na ɛma nea wɔde kata so no mu duru yɛ kɛse, na awiei koraa no ɛyɛ krataa a ɛyɛ den a pinhole nnim.

7. Akyi-Ayaresa & Winding

1. Nsakrae a wɔyɛ wɔ soro: Wɔ sintering pass a etwa to akyi no, wobetumi de corona ayaresa anaa nnuru sodium-naphthalene etching adi dwuma de ama ɔfasu a ɛbata ho no atu mpɔn a ɛnsɛe substrate no, na ama kɔbere a wɔde kata so akyiri yi anaasɛ nea ɛto so abien a wɔde kata so no ayɛ mmerɛw.

2. Edge trimming & winding: Wɔtwitwa ntama anoano tẽẽ, afei wɔde afiri a wɔde gye nneɛma twitwa ntama a wɔawie no fɛfɛɛfɛ.

3. Nhwehwɛmu a wɔyɛ no yiye: Sɔhwɛ a edi mũ a wɔyɛ wɔ nneɛma a wɔawie ho a nea ɛka ho ne nnyinaso mu duru, ne kɛse, ahoɔden a ɛtwetwe, ahoɔden a wɔde yiyi, dielectric constant ne sintɔ ahorow a ɛwɔ aniwa so.

Nneɛma a Wɔde Di Dwuma Titiriw

Nneɛma a ɛho hia a ɛkyerɛ nneɛma a wɔawie no yiyedi kwan ne: desizing/dewaxing a edi mũ, emulsion wetting a edi mũ, nkakrankakra low-temperature drying, sintering temperature setting pɛpɛɛpɛ, ne coating density a ɛkɔ so daa wɔ impregnation cycles pii akyi.

Mfiridwuma ho nsɛm a ɛwɔ atifi hɔ no, wɔde ma Jiangsu Aokai Nneɛma Foforo Mfiridwuma Co., Ltd.

Sɛ wopɛ sɛ wunya nsɛm a ɛkɔ akyiri, application scenarios ne customized ano aduru ma yɛn nyinaa product portfolio a PTFE high-temperature adhesive tape, PTFE high-temperature adhesive tape, PTFE high-temperature mesh belt, seamless heat press belt, single-sided PTFE ntama, high-temperature resistant conveyor belt ne ɔhyew-resistant fiberglass ntama, yɛsrɛ sɛ fa nsɛm a ɛwɔ aseɛ ha yi so di yɛn ho nkɔmmɔ:

· Ɔsom Ntrɛwmu: Owura Guo +86 18944819998

· Ɔsom Ntrɛwmu: Owura Liu +86 13705266308

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