PTFE daim kab xev Reusability: Yuav ua li cas los txhim kho Repeated Adhesion Performance

PTFE high-temperature daim kab xev yog feem ntau siv nyob rau hauv daim ntawv thov uas yuav tsum tau repositioned, tshem tawm thiab reapplied ntau zaus - piv txwv li, ntawm tshav kub sealers thaum lub sij hawm hloov, ntawm 3D tshuab luam ntawv txaj rau txawv prints, los yog raws li ib ntus npog nyob rau hauv electronics los ua ke. Txawm li cas los xij, tom qab ob peb lub voj voog, daim kab xev yuav plam stickiness, tawm residue, los yog ua tsis tiav.

Cov xov xwm zoo yog tias rov siv tau tuaj yeem txhim kho - los ntawm kev tsim cov khoom lag luam zoo dua, ua tib zoo tuav, thiab kho kom raug.

Aokai PTFE tsim PTFE daim kab xev nrog kev ua kom rov ua dua adhesion. Phau ntawv qhia no piav qhia vim li cas adhesion degrades thiab yuav ua li cas txuas ntxiv lub neej muaj txiaj ntsig ntawm koj daim kab xev los ntawm ntau daim ntawv thov.

Vim li cas Repeated Adhesion Degrade? Keeb kwm

Ua ntej yuav daws qhov teeb meem, nkag siab txog peb lub ntsiab mechanisms uas ua rau adhesion poob dua li rov siv dua.

1. Cov kab mob saum npoo av – hmoov av, fibers, thiab silicone roj

Txhua zaus cov ntaub nplaum raug, cov plua plav hauv huab cua, cov khib nyiab fiber ntau, thiab (los ntawm daim kab xev nws tus kheej) cov roj silicone tuaj yeem ntim rau ntawm cov nplaum nplaum. Txawm hais tias microscopic txo qhov chaw sib cuag, txo cov tev lub zog.

• Silicone roj tsiv teb tsaws: Qee qhov zoo silicone PSAs muaj cov roj silicone dawb, tsis muaj kev sib txuas. Nyob rau hauv tshav kub los yog siab, cov roj no tsiv mus rau cov nplaum nplaum, ua raws li tus neeg sawv cev tso tawm - txo qis tack.

2. Cohesive tsis ua hauj lwm - cov nplaum nplaum uas tshuav tom qab

Thaum cov nplaum txheej cais sab hauv (cohesive tsis ua hauj lwm) es tsis tso tawm ntawm lub substrate, qee cov nplaum tseem nyob rau ntawm qhov chaw mating. Qhov no residue:

• Txo cov kab xev nplaum ntxiv

• Contaminates nto rau daim ntawv thov tom ntej

• Ua rau kev sib txuas tsis sib xws

3. Kev sib txuas tsis zoo ntawm cov nplaum thiab PTFE substrate

Yog hais tias cov silicone PSA tsis ua raws li cov PTFE-coated fiberglass backing, rov tev yuav ua rau cov nplaum txheej tshem tawm cov substrate. Daim kab xev ua 'bald' nyob rau hauv thaj ua rau thaj, nrog cov nplaum sab laug ntawm cov mating nto thiab nthuav tawm PTFE thaub qab uas tsis muaj stick.

4. Adhesive deformation - poob ntawm wettability

Tom qab ntau qhov compressions, cov nplaum txheej yuav ua rau flattened, hardened, los yog kis mus rau qhov chaw uas nws tsis tuaj yeem ntws mus rau hauv micro-khoov ntawm qhov sib txuas. Qhov no txo ​​qhov pib tack thiab qhov kawg tev lub zog.

Khoom tsim kev txhim kho - Ua cov kab xev zoo dua

Cov kev daws teeb meem zoo tshaj plaws yog tsim rau hauv daim kab xev thaum tsim khoom.

1. Xaiv qhov ua tau zoo silicone PSA - qhov ntsuas tseem ceeb

• Ua kom crosslink ceev: Siv ob lub ntsiab lus ntxiv-kho silicone nplaum nrog kev kho kom txaus. Ib tug tuab crosslinked network resists cohesive tsis ua hauj lwm thiab nplaum hloov. Nyob rau hauv-kho PSA nplooj residue.

• Cov mis tsis muaj nag lossis daus: Xaiv cov xim zoo nkauj silicone nplaum uas muaj cov ntsiab lus tsis muaj zog thiab tsis tshua muaj roj silicone. Qhov no tiv thaiv cov roj silicone los ntawm kev tsiv mus rau qhov chaw sib koom ua ke - qhov tseem ceeb ntawm qhov txawv ntawm PTFE daim kab xev rov siv tau los ntawm cov khoom siv pov tseg.

• Sib npaug thawj zaug tack thiab tuav lub zog: Ntxiv MQ silicone resin rau tack li, tab sis tswj qhov kev faib ua feem kom zoo. Tshaj resin ua rau cov nplaum residue; resin tsis txaus ua rau qaug zog thawj zaug tack thiab poob sai sai ntawm wettability tom qab siv dua.

2. Txhim kho kev sib txuas ntawm lub ntsej muag - kev kho mob primer

PTFE muaj lub zog qis heev. Silicone PSA tsis zoo sib xws rau nws.

• Kev kho mob primer: Siv ib qho tshwj xeeb silicone primer (silane coupling agent system) rau PTFE fiberglass substrate. Qhov no tsim cov khoom siv tshuaj lom neeg lossis lub cev muaj zog anchoring ntawm silicone nplaum thiab qis-nto-zog PTFE, tiv thaiv cov nplaum los ntawm tev tawm ntawm lub substrate thaum rov stripping.

• Substrate nto ua kom muaj zog: Ua cov tshuaj etching me me los yog kev kho ntshav ntawm cov nplaum ntawm PTFE (ib sab nkaus xwb) txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhuam nws

3. Optimize daim kab xev qauv - tuab thaub qab thiab tso tawm tsim

• Txhim kho substrate stiffness: Siv densely woven, high-density fiberglass daim ntaub tag nrho impregnated nrog PTFE. Ib qho tawv substrate resists ncab thiab deformation thaum rov tev, xyuas kom cov nplaum raug stripped ntawm lub kaum sab xis thiab txo qhov kev puas tsuaj.

• Backside tso tawm tsim: Guarantee ruaj khov kev ua tau zoo ntawm PTFE txheej (los yog ntxiv txheej txheej) ntawm daim kab xev rov qab. Kev tso tawm tsis zoo ua rau muaj kev sib txuam ntau dhau ntawm cov khoom lag luam yob - tev lub yob ua rau cov nplaum nplaum los yog tawm cov kab nrib pleb, zoo heev txo kev rov siv dua.

Kev Ua Haujlwm Zoo & Kev Tu - Yuav Ua Li Cas Ua Daim Kab Xev

Txawm tias qhov zoo tshaj plaws-tsim daim kab xev yuav ua tsis tau ntxov yog tias ua haujlwm tsis zoo.

1. Khaws qhov chaw sib txuas kom huv si

Ua ntej txhua daim ntawv thov, so qhov chaw sib cuag nrog cov ntaub tsis muaj lint-dawb dipped nyob rau hauv anhydrous ethanol los yog isopropanol . Qhov no tshem tawm cov roj silicone residual, plua plav, thiab roj. Tsis txhob siv acetone los yog cov kuab tshuaj muaj zog uas yuav ua rau cov nplaum nplaum.

2. Tsis txhob tev ntawm qhov kub thiab txias

Tos kom txog thaum daim kab xev txias mus rau chav sov ua ntej tshem tawm. Silicone nplaum poob cohesive zog nyob rau hauv tshav kub - nws ua mos thiab stretchy. Peeling thaum kub feem ntau ua rau cohesive puas thiab residue. Chav tsev kub tev tawm kom huv si.

3. Txheem txheej txheej txheej txheej

• Tev kom maj mam thiab sib npaug ntawm lub kaum sab xis ze li 180 ° (pav tawm ntawm qhov chaw).

• Tsis txhob ua nruj nruj los yog rub ntawm cov kaum ntse ntse (xws li, 90 °), uas ua rau muaj kev ntxhov siab thiab tuaj yeem nqa cov nplaum los ntawm lub nraub qaum.

• Tsis txhob rub lub nplaum nplaum - qhov no embeds av thiab txo tack.

4. Kev tiv thaiv ib ntus thaum lub sijhawm tsis ua haujlwm

Yog tias daim kab xev raug tshem tawm tab sis yuav rov siv dua tom qab (piv txwv li, thaum lub sij hawm hloov khoom siv), muab nws tso rau hauv PET tso tawm zaj duab xis es tsis txhob tso nws tawm. Qhov no tiv thaiv plua plav adsorption thiab ua kom cov nplaum huv si.

5. Kev xaiv qauv tsim nyog - cov nplaum nplaum tuab pab tau

Yog tias muaj kev tso cai ua haujlwm, xaiv daim kab xev nrog cov nplaum nplaum (piv txwv li, 0.05-0.08 mm vs. 0.02-0.03 mm). Ib txheej silicone thicker muab:

• Cushioning nyhuv

• Kev kho tus kheej wettability (tuaj yeem sau micro-qhov khoob)

• Slower adhesion attenuation tom qab siv ntau yam

Quantitative Testing – Measuring Reusability

Txoj hauv kev zoo tshaj plaws los ntsuas qhov rov ua dua adhesion yog los ntawm kev ntsuas tus qauv.

1. Kev sim

• Siv daim kab xev rau lub vaj huam sib luag stainless hlau huv si (ib ASTM D3330).

• Ntsuas qhov pib lub zog (180 ° tev, 300 mm / min).

• Tshem daim kab xev kom zoo.

• Rov ua dua tib daim kab xev rau ib ntu huv ntawm lub vaj huam sib luag.

• Rov ua dua mus txog 5-10 lub voj voog.

2. Kev lees txais

• Peel lub zog tuav: Tom qab 5 lub voj voog, tev lub zog yuav tsum nyob twj ywm siab dua 50% ntawm tus nqi pib (khoom zoo tshaj plaws ua tiav 70-80%).

• Tsis pom qhov seem: Lub vaj huam sib luag yuav tsum huv tom qab txhua tev.

• Tsis muaj nplaum hloov mus rau thaub qab: Daim kab xev rov qab yuav tsum nyob twj ywm tsis lo.

Aokai PTFE ua qhov rov ua dua adhesion ntawm txhua daim kab xev reusability-qib. Peb tuaj yeem muab cov ntaub ntawv ntsuas lub voj voog raws li kev thov.

Summary - Yuav Ua Li Cas Txhim Kho PTFE Daim Kab Xev Reusability

Aokai PTFE muaj PTFE high-temperature daim kab xev tshwj xeeb tsim rau rov qab adhesion daim ntaub ntawv. Peb cov dej nag tsawg, high-crosslink silicone PSA, ua ke nrog primer-kho rov qab, muab kev ua tau zoo ib yam ntawm ntau lub voj voog. Tiv tauj peb rau cov khoom pom zoo thiab cov ntaub ntawv xeem.

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

Yog tias koj xav paub ntau ntxiv txog 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 fabrics, PTFE high-temperature tapes, PTFE mesh bets, seamless bonding machine belts, single-sided PTFE fabrics, high-temperature resistant conveyor bets thiab high-temperature fabrics, thov hu rau peb:

• Mr. Guo: +86 18944819998

• Mr. Liu: +86 13705266308

Peb ib txwm txhawb nqa lub tswv yim ntawm kev tshaj lij thiab kev ncaj ncees, thiab tau cog lus los muab kev daws teeb meem rau koj ib leeg thiab kev xav zoo.