Wetin na di kwantiti kɔrɛspɔndɛns bitwin di jel frakshɔn indeks fɔ silikon prɛshɔn-sɛnsitiv adeziv ɛn di kɔhisiv trɛnk fɔ di adhesive layt?

I. Difinishɔn ɛn Mɛzhɔmɛnt Mɛtɔd fɔ di Indikɛtɔ dɛn

1. Jɛl frakshɔn: .

   di jel frakshכn de rifer to di mas pasεnshכn fכ di kכroslink nεtwכk insay di silikon prεshכn-sεnsitiv adhesive we dεn kכt pan Teflon ay-tεmpratura tep we nכ de sכlv insay gud sכlvεnt (lεk toluene). Di we aw dɛn de mɛzhɔ am involv fɔ rap di klin adhesive film insay wan filta mɛsh, pul am insay Soxhlet ɛkstrakta fɔ 24 awa, ɛn afta dat dɛn drɛy di insɔlubul rɛsɛdyu to kɔnstant wet bifo dɛn kɔlkyul.

2. Strɔng we gɛt wanwɔd:

   insay Teflon tep, di kohεsiv trεnk de kכl am bay ay tεmprachכ hכld pawa (shia adheshon fεil tεmprachכ כ shia hכld tεm). di tεst dεn kin kכnεkt am na 180 °C כnda 1 kg lod, we dεn de rεkכd di tεm te di adhesive layεr slip כ fεl. Dis valyu de sho dairekt wan di adhesive layεr in abiliti fכ rεsist fכ fכlכ εn split.

II. Kwantitaytiv Kɔrɛspɔndɛns Bitwin Jɛl Frakshɔn ɛn Kɔhisiv Strɔng

1. Dכn di krichכl pכynt (jel frakshכn < 60%):

   di sistεm nכ fכm wan pεrkolayt nεtwכk yet; di adhesive layεr de stil insay wan viskos-fכ stet, wit hכld pawa we de nia ziro εn nכ prεktikal kכhεsiv strכng.

2. Praktikal rεnj (60%–85%): .

   biyond di krichכl pכynt, di ifektiv εlastik chen dεnsiti de inkrεs shap shap wit di jel frakshכn, εn kכhεsiv trεnk de gro εkspכnεshכnal כ fכlכ wan ay-pawa lכ. we yu inkrεs di jel frakshכn frכm 60% to 70% i kin mek di hכy tεmprachכ hכld tεm frכm minit to awa; frכm 70% to 80%, di hכld pawa kin inkrεs bay adishכnal 3 to 10 tεm. Di fayl mod de chenj smɔl smɔl frɔm bɔku kɔhisiv fayl to miks fayl.

3. Ay kroslinkin rεnj (> 85%):

   Di inkris na di kohεsiv trεnk de slo dכn. we yu rayz di jel frakshכn frכm 85% to 95% i de inkrεs di tεm fכ hכl di tεm bay כnli 20%–50%, bכt tak (initial adhesion) de dכp bכku bכku wan biכs fכ di rεstrikt mכlikul chen mobiliti. we di jel frakshכn pas 95%, di adhesive layεr de aproch wan pure elastomer stet, εn prεshכn-sεnsitiv adhesive prכpati dεm de essentially lכs.

III. Semi-Empirical Model ɛn Tipik Data

As Jiangsu Teflon ay-tɛmpracha fabrik manifakta dɛn sɔmariz, di ɛmpirikal rilayshɔn bitwin shia holdin tɛm (t_shear) ɛn jel frakshɔn (g) kin ɛksprɛs as:

lg(t_shear) = A + B · g (wit B aprɔksimatli 0.1–0.2), we de sho se na ɛkspɔnɛnshal dipɛnsin. di valyu dεm fכ A εn B dipכnt pan di MQ rεsin rεshכn, adhesive layεr tiknes, εn tεst tεmprachכ.

Tipik kכrεspכndεnt data (180 °C statik shia, nכmal to wan hכld tεm fכ 1 na 65% jel frakshכn):

| Frakshɔn fɔ Jel | Rilativ Holdin Taym | Di Mod fɔ Fayla |

|---------------|

| 55% pipul dɛn | < 0.1 | 100% kohεsiv fεil |

| 65% pipul dɛn | 1 Na 1 | ~80% kohεsiv fεil |

| 75% pipul dɛn | 8–15 we de na di wɔl | Miks fɔl we dɔn fel |

| 85% pipul dɛn | 50–100 ɛn 100 | Smɔl rɛsɛdyu |

| 92% pipul dɛn | 150–200 (nia sɛtyureshɔn) | Pure intafeshal fayl |

 

i klia se insay di 60%–90% rεnj, εvri 5 pasεnshכn-pכynt inkrεs pan jel frakshכn kin lid to mכltipכl-fol inkrεs pan hכy tεmprachכ kכhεsiv strכng.

IV. Kontrol Strateji in Teflon Tep Manufakchurin

1. Target jel frakshɔn rɛnj: .

   Fɔ jenɛral-pɔpɔs ɔt-rɛsistant wayndin tep frɔm Jiangsu Teflon ay-tɛmpracha fabrik manifakta dɛn, di rɛkɔmɛnd jel frakshɔn na 75%–85%, balans tak ɛn kɔhyeshɔn. fכ ay-tεmprachכ anti-stik kכnvεyכr bεlt (sכbjεkt to lכng tεm lכd na 200–260 °C), di jel frakshכn fכ rich 85%–93% fכ prεvεnt adhesive rεsidyu we kכz bay kכhεsiv split fכ di adhesive layεr.

2. Intafɛs maching rikwaymɛnt dɛn:

   Di PTFE surface of Teflon high-temperature tape gɛt ekstrim low surface enaji; fכ dat, di kכhεsiv trεnk fכ di adhesive layεr fכ hכy pas di intafεshal adheshon strכng; if nכto dat, kכhεsiv fεil go apin כnda strεs. if di jel frakshכn pas 93%, di adhesive layεr de stif, we de ridyus wet εn kכnfכmabiliti to di PTFE sabstεrayt, we kin mek di edj liftin. insay prodakshכn, i implεnt fכ prεsis kכntrכl kכroslink tεmprachכ, tεm, εn katalis dכz fכ lכk di jel frakshכn insay di tכgεt rεnj, fכ achy wan rilibul transishכn frכm kכhεsiv fεil to intafεshal fεil.

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