Cov txheej txheem yooj yim ntws rau Impregnating Fiberglass Fabric nrog PTFE Emulsion

Jiangsu Aokai Cov Khoom Tshiab, cov chaw tsim khoom ntawm PTFE cov ntaub ntawv kub kub, muab cov lus qhia tag nrho. Cov txheej txheem ntawm impregnating fiberglass ntaub nrog PTFE dispersion yog cov txheej txheem tseem ceeb rau cov txheej txheem sib npaug thiab sinter polytetrafluoroethylene mus rau fiberglass substrate, tsim cov ntaub ntawv sib xyaw uas muaj qhov kub tsis kam, hluav taws xob rwb thaiv tsev thiab kev ua haujlwm tsis zoo. Cov khoom zoo li no tau siv dav hauv cov khoom siv tooj liab-clad laminates, high-temperature non-stick conveyor siv, architectural membrane cov ntaub ntawv thiab lwm yam.

Cov txheej txheem pib ua tiav muaj xya kauj ruam tseem ceeb raws li hauv qab no:

1. Fiberglass Fabric Pretreatment (Dewaxing / Desizing)

Qhov no yog qhov tseem ceeb tshaj plaws ua ntej kev kho mob. Tus neeg sawv cev ntawm cov khoom siv textile (feem ntau yog paraffin wax, starch derivatives) yog coated ntawm fiberglass filaments thaum weaving; Kev tshem tawm tsis tiav yuav ua rau muaj kev cuam tshuam loj ntawm kev sib txuas ntawm PTFE thiab iav fibers.

· Txoj kev kho tseem ceeb: Cov ntaub tsis tu ncua dhau los ntawm lub qhov cub kub kub rau thermal dewaxing ntawm 350 ~ 400 ° C, tag nrho oxidizing thiab decomposing tag nrho cov organic sizing agents.

· Kev ua raws li kev tuav: Dewaxed npuag yog txias, qee zaum yaug nrog dej huv los yog tshuaj kuab tshuaj kom tshem tawm cov tshauv seem, ces qhuav kom tau cov ntaub dawb huv huv si npaj rau impregnation.

2. PTFE Emulsion Formulation

· Cov khoom siv raw: Concentrated PTFE dispersion nrog tus qauv cov ntsiab lus ntawm kwv yees li 60%.

· Cov txheej txheem sib xyaw: Dilute lub Tshuag dispersion nrog dej deionized mus rau lub hom phiaj concentration (40% -55%) raws li xav tau resin loading thiab impregnation viscosity. Tsim nyog surfactant ntxiv los txhawb kev ua haujlwm ntub dej ntawm fiberglass; thickener tuaj yeem muab tso ua ke los kho viscosity thaum tsim nyog.

3. Impregnation

Lub hom phiaj tseem ceeb yog tag nrho nkag mus ntawm PTFE emulsion rau hauv fiber ntau pob thiab interstices ntawm cov ntaub woven.

1. Dip-Squeeze Method (Feem ntau tau txais): Cov ntaub yog coj los ntawm immersion rollers kom tag nrho tsau rau hauv lub tank emulsion, ces dhau los ntawm ib khub ntawm nyem rollers. Txheej hnyav yog tswj los ntawm kev kho cov menyuam nip siab kom extrude tshaj emulsion thiab faib resin uniformly.

2. Kws Kho Mob Hniav Txheej: Emulsion yog kis tau los ntawm cov ntaub nto ntawm cov hniav hlau, haum rau cov viscosity dispersion siab.

4. Qhuav

Impregnated npuag nkag mus rau qhov kub qis kom qhuav qhov cub ua haujlwm ntawm 100 ~ 150 ° C.

· Lub hom phiaj: Maj mam evaporate dej thiab ib feem surfactants, tsim ib tug txawm tsis-tacky qhuav zaj duab xis ntawm PTFE hais rau ntawm fiber ntau.

· Temperature control note: Excessively high temperature will rapidly form a dense surface film, trapping internal moisture which vaporizes to create pinholes and blisters.

5. Sintering (Thermal Curing)

Cov ntaub qhuav tam sim ntawd muab tso rau hauv qhov cub kub kub sintering rau kev kho cua sov ntawm 360 ~ 390 ° C (txog 400 ° C rau qee qib).

· Mechanism: PTFE yog cov thermoplastic polymer. Nyob rau ntawm qhov kub siab tshaj nws qhov melting point (327 ° C), PTFE hais yaj yaj, ntws thiab theem tawm mus ua ib tug tas mus li zaj duab xis, ua tiav mechanical interlocking thiab adhesion nrog fiberglass nto.

· Theem division: sintering cheeb tsam yog muab faib ua cua sov ramp, tas li-temperature sintering thiab txias ntu kom lav tag nrho particle fusion yam tsis muaj thermal degradation.

6. Multi-Cycle Impregnation & Sintering

Ib lub voj voog impregnation-sintering tsuas yog tsim cov txheej txheej ultra-thin ua rau qhov tsis xws luag. Txhawm rau kom ncav cuag lub hom phiaj txheej tuab thiab cov ntsiab lus resin (piv txwv li, 45% -65% resin loading rau high-frequency tooj liab-clad laminate substrates), tag nrho cov kab ke ntawm impregnation → ziab → sintering  yog rov ua 2 mus rau 4 zaug lossis ntau dua. Txhua lub voj voog ntxiv ua rau cov khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob.

7. Kev Kho Mob Tom Qab & Cua

1. Kev hloov kho deg: Tom qab qhov kawg sintering dhau, kev kho mob corona los yog tshuaj sodium-naphthalene etching tuaj yeem siv los txhim kho qhov adhesion yam tsis muaj kev puas tsuaj rau lub substrate, ua kom yooj yim rau cov tooj liab cladding los yog theem nrab txheej.

2. Ntug trimming & winding: Npuag npoo yog trimmed ncaj, ces cov ntaub tiav yog zoo huv si raug mob los ntawm lub tshuab nqa.

3. Kev soj ntsuam zoo: Kev ntsuam xyuas tag nrho ntawm cov khoom tiav nrog rau qhov hnyav, thickness, tensile lub zog, tev lub zog, dielectric tas li thiab pom qhov tsis xws luag.

Core Process Control Points

Cov yam ntxwv tseem ceeb uas tswj cov khoom tiav tiav yog: ua tiav desizing / dewaxing, puv emulsion wetting, maj mam qis-kub kom qhuav, meej sintering kub qhov chaw, thiab zoo ib yam txheej ceev tom qab ntau impregnation cycles.

Cov ntsiab lus technical saum toj no yog muab los ntawm Jiangsu Aokai Tshiab Materials Technology Co., Ltd.

Yog tias koj xav tau cov ncauj lus kom ntxaws, daim ntawv thov scenarios thiab cov kev daws teeb meem rau peb cov khoom lag luam tag nrho suav nrog PTFE high-temperature daim ntaub, PTFE high-temperature adhesive tape, PTFE high-temperature mesh belt, seamless heat press belt, single-sided PTFE fabric, high-temperature resistant conveyor belt, PTFE high-temperature mesh belt, seamless heat press belt, one-sided PTFE npuag, high-temperature resistant conveyor belt:

· Service Hotline: Mr. Guo +86 18944819998

· Service Hotline: Mr. Liu +86 13705266308

Peb ib txwm ua raws li kev tshaj lij thiab kev ncaj ncees-taw qhia kev pabcuam kev xav, ua siab dawb muab ib qho kev daws teeb meem thiab kev xav zoo rau txhua tus neeg koom tes!