Jiangsu Aokai New Materials, si nye PTFE ƒe dzoxɔxɔ gã ƒe kasɛt wɔla bibi aɖe, ƒo nu tso vovototo siwo le nusiwo wowɔ ƒe liƒo si xɔme ƒe dzoxɔxɔ kple dzoxɔxɔ gã ƒe tsitsi si le silicone pressure-sensitive adhesive (PSA) me hena vɛ ŋu tsitotsito.
I. Vovototo siwo le Crosslinking Network kple Cohesive Ŋusẽ me
Le dɔwɔwɔ ƒe dzoxɔxɔ si nye 120°C ~ 180°C te la, molecule kɔsɔkɔsɔ siwo le adhesive layer la me kpɔa ʋuʋu si sɔ, si wɔnɛ be reactive functional groups ƒe gododo zi gbɔ zi geɖe. Wowɔa akpa etɔ̃ ƒe kadodo si le wo nɔewo ŋu ŋutɔ, si woma ɖekae, si naa ŋusẽ sesẽ si léa nu ɖe nu ŋu la be wòate ŋu anɔ te ɖe sisi kple eƒe tɔtrɔ nu le dzoxɔxɔ sesẽwo me.
Nuwɔnawo yia edzi blewu eye womede blibo o le yame ƒe dzoxɔxɔ (~25°C) me, si wɔnɛ be teƒe siwo wotsɔa kaƒomɔ̃wo ƒoa ƒui la mebɔ o, siwo mesɔ o eye kɔsɔkɔsɔ ƒe akpa siwo mewɔa dɔ o siwo le ablɔɖe me sɔ gbɔ siwo tsia aŋea me. Xɔtunu mawo siwo me mekɔ o la kpea fu vevie le ɖekawɔwɔ si mesɔ gbɔ o me, eye wofana alo ƒoa xlã wo bɔbɔe le dzoxɔxɔ te.
Tepe si tsi le dzoxɔxɔ gã me ƒoa adegbe le ŋusẽ si nu sẽ wu sã wu ŋusẽ si léa nu ɖe wo nɔewo ŋu le wo nɔewo dome; nusi wotsɔ léa nu ɖe nu ŋu ƒe ƒuƒoƒo bliboa ƒuna ɖekae eye naneke megblẽna ɖe eŋu o. To vovo na esia la, xɔme ƒe dzoxɔxɔ ƒe tepe si tsi nyuie la toa kpododonu si le ɖeka me bɔbɔe, eye wogblẽa aŋenu si vuvu ɖe nusiwo wotsɔ bla ɖe wo nɔewo ŋu dzi eye wòwɔa ɖiƒoƒo sesẽ — esiae nye dɔwɔwɔ ƒe dometsotso si me kɔ wu le dɔwɔwɔ eveawo dome.
PTFE ɖea ŋusẽ si le anyigba dzi si bɔbɔ ŋutɔ fiana eye wòhiã be woawɔ dɔ le anyigba dzi etɔxɛe alo woatsɔ nu gbãtɔ atsyɔ edzi. Dzoxɔxɔ gã ƒe tsitsi wɔnɛ be woate ŋu awɔ dɔ ɖekae le primer kple silicone adhesive me le ɣeyiɣi ɖeka me, si wɔnɛ be atikewo ƒe kadodo ƒe kadodo siwo gena ɖe wo nɔewo me le ƒomedodoa me. Ultra-high bonding ŋusẽ xea mɔ na bliboe adhesive delamination tso substrate le enuenu dzoxɔxɔ gã dɔwɔwɔwo.
2. Xɔme ƒe dzoxɔxɔ ƒe tsitsi: Enɔa te ɖe ŋutilã me adsorption dzi
Dzoxɔxɔ si le yame mate ŋu ana primer la ƒe nuwɔna ƒe ŋutete bliboa nawɔ dɔ o. Kadodo si le adhesive kple substrate dome nɔ te ɖe intermolecular physical adsorption si gbɔdzɔ dzi koŋ, eye kadodo ƒe ŋusẽ bɔbɔ kura wu atikewo ƒe crosslinking.
3. Afɔku vovovo siwo le dzoxɔxɔ gã ƒe delamination me
Nusiwo wotsɔ léa nu ɖe te to ŋutilã me adsorption dzi doa kpo nu bɔbɔe le dzoxɔxɔ gã ƒe ɣeyiɣi didi ƒe nuƒoƒo me, si wɔnɛ be adhesive ƒe asitɔtrɔ bliboe yia dɔwɔwɔ ƒe akpawo kple PTFE avɔ ƒuƒlu ƒe anyigba dzi. To vovo na ema la, atikewo ƒe seke siwo wowɔ to dzoxɔxɔ gã ƒe tsitsi me ɖea delamination ƒe afɔku mawo ɖa kakaɖedzitɔe.
III. Low-Molecular Residues & Kɔkɔ-Dzoxɔxɔ Volatiles
1. Dzoxɔxɔ gã ƒe tsitsi: Ðiƒoƒo ɖeɖeɖa si sɔ hafi woatsɔe vɛ
Dzoxɔxɔ gã ƒe tsitsi ƒe ɖoɖoa wɔa dɔ abe afɔɖeɖe si wowɔna do ŋgɔ na kɔklɔ nyuie ene, si ɖea nusiwo me dzoxɔxɔ le siwo dometɔ aɖewoe nye nusiwo naa nu ʋãna, silicone ami siwo ƒe molecule mesɔ gbɔ o kple nusiwo dona tsoa nuwɔna me la ɖa kloe. Nusi wotsɔ léa nu ɖe nu ŋu si wowɔ vɔ la gakpɔtɔ le dzadzɛ eye dzoxɔxɔ si mebɔ o dona le eme le eŋudɔwɔwɔ mlɔeba me.
2. Xɔme ƒe dzoxɔxɔ ƒe tsitsi: Nu gã siwo ƒe molecule mesɔ gbɔ o siwo xa ɖe eme
Nu suesuesue siwo ƒe molecule mesɔ gbɔ o gakpɔtɔ le nutrenu me le aŋenu si wotsɔna léa nu ɖe nu ŋu la me le xɔme ƒe dzoxɔxɔ nu. Ne wotsɔ kasɛt la de dzoxɔxɔ si wu 200°C me zi gbãtɔ la, nu siawo xɔa dzo kabakaba eye wokekena sesĩe.
3. Ŋusẽkpɔɖeamedzi siwo gblẽa nu le liƒo ŋu
Concentrated volatilization of low-molecular compounds hea bubbling, blistering kple sharp tack loss le tape dzi. Ate ŋu agblẽ silicone-mi ƒe ɖiwo hã ɖe nusiwo wotsɔ dzoxɔxɔ xe mɔ na dzi le tsidzadza si nu sẽ ŋutɔ megbe. Eyata xɔme ƒe dzoxɔxɔ ƒe kasɛt si tsi nyuie ɖea dɔwɔwɔ si meli ke kura o fiana le dzoxɔxɔ gbãtɔ me, si doa kpo dzadzɛnyenye ƒe dzidzenu sesẽwo na elektrɔnikmɔ̃wo, nuɖuɖu bablawo kple dɔwɔƒe bubu siwo wɔa nu pɛpɛpɛ.
IV. Ɣeyiɣi Didi ƒe Dzoxɔxɔ Tsitsi & Dɔwɔwɔ Drift
1. Dzoxɔxɔ gã ƒe tsitsi: Thermodynamically li ke nɔnɔme le vidzidzi
Dzoxɔxɔ gã ƒe tsitsi ʋãa crosslinking reactions kloe wòwua enu, eyata kasɛtwo dzona le dɔwɔƒea kple dɔwɔwɔ ƒe xexlẽdzesi siwo li ke. Dzesi veviwo abe lãgbalẽ ƒe ŋusẽ kple ŋusẽ si léa nu ɖe te ene nɔa ɖeka le subɔsubɔ ƒe ɣeyiɣia katã me, eye womeɖea ʋuʋu le dɔyɔyɔ megbe, sesẽ alo didime ƒe tɔtrɔ si dze ƒã o, si naa dɔwɔwɔ si woate ŋu agblɔ ɖi ŋutɔ.
2. Xɔme ƒe dzoxɔxɔ ƒe tsitsi: tsitsi evelia si yia edzi le subɔsubɔdɔa wɔɣi
Tepe si woda gbe le xɔme ƒe dzoxɔxɔ me la toa crosslinking reactions siwo mede blibo o me ne wotsɔe de dzoxɔxɔ gã me le asisi la ƒe teƒe. Vivivi la, eƒe sesẽ kple eƒe gbagbã dzɔna le ɣeyiɣi aɖe megbe; peel ƒe ŋusẽ dzina ɖe edzi gbã emegbe eɖiɖina ŋutɔ, eye tack ate ŋu abu keŋkeŋ le nɔnɔme sesẽwo me.
3. Subɔsubɔdɔ ƒe kakaɖedzi tsɔtsɔ sɔ kple wo nɔewo bliboe
Esi atike ƒe xɔtuɖoɖo siwo li ke ɖea vi ta la, dzoxɔxɔ gã ƒe tepe si tsi nyuie la léa ŋusẽ ɖedzesi si léa nu ɖe te le dɔwɔwɔ ƒe nɔnɔme siwo yia edzi le 260°C me, eye wòtsia tre ɖe ʋuʋu kple nugbɔ ƒe ʋuʋu ŋu. Tepe si tsi le xɔme ƒe dzoxɔxɔ me ƒe dɔwɔwɔ nɔa tsatsam ɣesiaɣi, si wɔnɛ be womate ŋu awɔ ewɔwɔ ɣesiaɣi o. Vovototo vevitɔe nye be dzoxɔxɔ gã ƒe tsitsi wua atikewo ƒe tɔtrɔ siwo katã meli ke o nu hafi tsɔa wo vɛ, si wɔnɛ be kakaɖedzi le dɔwɔwɔ ŋu ŋutɔ na nuwuwu zãlawo.
