Vim li cas iav Fiber Cloth Yuav Tsum Dewaxing Ua ntej Impregnation nrog PTFE Emulsion? Txoj Cai yog dab tsi?

Raws li cov kws tshaj lij ntawm PTFE cov ntaub ntawv kub kub, Aokai Cov Khoom Siv Tshiab ua cov kev kho kub kub ntawm cov ntaub iav fiber ntau. Ua ntej impregnation nrog PTFE (Polytetrafluoroethylene) emulsion, iav fiber ntau daim ntaub undergoes dewaxing thiab degumming kom tshem tawm sizing agents (textile auxiliaries) ntawm fiber ntau. Cov auxiliaries no pab rau bundling, lubrication thiab tiv thaiv thaum lub sij hawm siv fiber ntau kos duab thiab weaving. Txawm li cas los xij, yog tias tsis tshem tawm, lawv yuav ua rau muaj kev cuam tshuam loj ntawm cov khoom zoo ntawm PTFE thiab iav fiber ntau. Cov ntsiab cai tseem ceeb yog raws li nram no:

1. Tshem tawm cov khoom siv hluav taws xob tsawg thiab txhim kho Wettability

Paraffin, lubricating roj thiab lwm yam khoom hauv sizing cov neeg ua haujlwm yog cov khoom siv hluav taws xob tsawg. If retained, the PTFE emulsion (with low surface tension but strict requirements) cannot spread evenly on the glass fiber surface, resulting in defects such as craters and fish eyes. Los ntawm qhov kub thiab txias thermal tu los yog hnyav tu, cov kab mob raug tshem tawm thiab lub zog saum npoo ntawm iav fiber ntau yog nce, ua kom tag nrho cov ntub dej los ntawm PTFE.

2. Tiv thaiv Carbonization thiab Delamination Thaum Kub Kub Sintering

Lub sintering kub ntawm PTFE yog siab li 360-380 ° C. Cov residual paraffin lossis epoxy adhesives ntawm cov iav fiber ntau yuav carbonize ntawm qhov kub thiab txias, ua cov khoom dub lossis roj. Qhov no tsis tsuas yog qias neeg nruab nrab ( cuam tshuam rau cov khoom siv hluav taws xob hauv cov khoom siv hluav taws xob ntau zaus tooj liab-clad laminates) tab sis, qhov tseem ceeb tshaj, cov txheej txheem carbonized ua rau tsis muaj zog cuam tshuam, txo qis kev sib txuas ntawm PTFE thiab iav fiber ntau thiab ua rau delamination ntawm cov khoom sib xyaw.

3. Tsim kom muaj zog 'Mechanical Anchoring' Effect

High-zoo dewaxing thiab degumming (tshwj xeeb tshaj yog kub-kub kev kho mob) yog ntau tshaj li 'tu'. Raws li cov organic teeb meem raug tshem tawm, cov iav fiber ntau yog me ntsis etched los ua micropores los yog nthuav tawm ntau pawg silanol (-OH). Qhov no tsim cov xwm txheej rau cov txheej txheem txuas ntxiv tom ntej (piv txwv li, phenyl silane), tso cai rau PTFE los tsim cov khoom siv tshuaj lom neeg lossis cov ntsiab lus ntawm lub cev nrog cov iav fiber ntau los ntawm cov khoom sib txuas - hloov pauv yooj yim 'coating' rau hauv ruaj 'bonding'.

4. Tsis txhob deterioration ntawm Interfacial Dielectric Properties

Nyob rau hauv high-end daim ntaub ntawv xws li high-frequency thiab high-ceev tooj liab-clad laminates, residual polar organic tshuaj (wax, pos hniav) ho nce dielectric poob nyob rau hauv high kub thiab high zaus. Dewaxing thiab degumming ua kom cov iav fiber ntau-PTFE sib xyaw tuav tsis tshua muaj dielectric tsis tu ncua thiab dielectric poob.

Hauv cov ntsiab lus, lub hom phiaj tseem ceeb ntawm txoj kev kho no yog txhawm rau tshem tawm cov txheej txheem tsis muaj zog thiab ua kom ntseeg tau tias PTFE, cov khoom siv hluav taws xob tsawg, ua tiav cov ntaub ntub dej zoo tshaj plaws thiab muaj zog sib txuas ntawm cov iav fiber ntau huv si.

Cov ntaub ntawv saum toj no yog muab los ntawm Jiangsu Aokai New Materials Technology Co., Ltd.

Rau cov ncauj lus kom ntxaws, daim ntawv thov scenarios thiab customized kev daws teeb meem ntawm peb cov khoom tag nrho - suav nrog PTFE high-temperature fabrics, PTFE high-temperature tapes, PTFE high-temperature mesh bets, seamless belts for bonding machines, one-sided PTFE fabrics, high-temperature resistant conveyor bets, heat-resistant fiber ntau peb

● Kev Pabcuam Hotline: Mr. Guo 18944819998

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Peb txhawb nqa lub tswv yim kev tshaj lij thiab kev ua haujlwm ncaj ncees, thiab mob siab rau muab kev daws teeb meem rau koj ib leeg thiab saib xyuas kev pabcuam!