Xana mahiselo ya ku bola na hafu ya vutomi bya ti peroxide crosslinking agents swifanele ku fambelanisiwa njhani na fasitere ra maendlelo yo horisa ya Teflon tape?

I. Data ya Nkoka: Tipharamitha ta Hafu ya Vutomi bya BPO na DCP

1. Xikombo xa Mahiselo ya Hafu ya Vutomi

Ti peroxide crosslinking agents ti landzelela first-order decomposition kinetics, laha hafu ya vutomi (t1/2) eka mahiselo lawa ya nyikiweke kunga xikombiso lexi tirhisiwaka ngopfu.

Benzoyl Peroxide (BPO): 1-minute ya hafu ya vutomi eka kwalomu ka. 131°C, hafu ya vutomi bya awara yin’we eka kwalomu ka. 92°C, hafu ya vutomi bya tiawara ta 10 eka kwalomu ka. 72°C. Swihumelerisiwa swa ku bola i CO2 na benzoic acid, leswinga vangaka swirhumbana hiku olova.

2. Xiphemu xa Dicumyl Peroxide (DCP): .

-1-minute hafu ya vutomi eka kwalomu ka. 171°C, hafu ya vutomi bya awara yin’we eka kwalomu ka. 135°C, 10-hour hafu ya vutomi eka kwalomu ka. 115°C. Swilo leswi humaka eka yona i acetophenone na methane, leswingana nun’hwelo wo tika swinene.

3. Xilaveko xa le mahlweni xa Matirhiselo ya Data

Mimpimo leyi nga laha henhla i datha ya swikombo ya swilo swo basa. Eka ti adhesive solutions ta xiviri, ti solvents, fillers, na antioxidants swinga kavanyeta mpimo wa ku bola, hikokwalaho ku lulamisiwa hiku tirhisa DSC (Differential Scanning Calorimetry) measurement swa laveka.

II. Logic yo Fanisa Fasitere ra Maendlelo

1. Kuma Nkarhi Hi Ku ya hi Mpimo wa ku Bola

Leyara yo namarhela yilava ku fikelela 97%–99% wa crosslinking (kwalomu ka 5–7 wa hafu ya vutomi). Hikokwalaho, nkarhi wo horisa wufanele kuva 5–7 times eka hafu ya vutomi eka mahiselo lawa ya kongomisiweke.

2. Hlayela Mahiselo ya le ndzhaku ku suka eka Nkarhi wo Tshama wa Layini ya Vuhumelerisi

Loko nkarhi wo hisa lowu tirhaka eka oven wuri 5 wa timinete naswona 5 wa ti half-lives ta laveka kuva ti hetisisiwa, kutani t1/2 ≤ 1 wa timinete leti lavekaka. Mahiselo ya 1-minute ya hafu ya vutomi ya kwalomu ka. 131°C eka BPO na kwalomu ka. 171°C eka DCP. Mahiselo ya curing yafanele ku vekiwa eka kumbe ehenhla nyana ka nhlayo leyi.

3. Hlayela Nkarhi endzhaku ku suka eka Mahiselo ya le Henhla lama Pfumeleriweke

Xosungula kumisisa mahiselo yale henhla (Tmax) lawa substrate na adhesive layer swinga tiyiselaka. Kuma hafu ya vutomi eka mahiselo yaleyo, kutani u hlayela nkarhi wale hansi waku tshama hiku andzisa hi 5–7 wa minkarhi, ku sivela ku onhaka ka mahiselo kusuka eka ku hisa ngopfu.

III. Mafasitere yo Horisa lama Tolovelekeke ya Thepi ya Teflon

Teflon substrate yina ku tiya swinene ka kuhisa, kambe silicone pressure-sensitive adhesive leyi cheriweke hi yona yi sivelaka. Swikimi swimbirhi swi ringanyetiwa leswi simekiweke eka swihlawulekisi swa crosslinker.

1. Xikimi xa ku hatlisa xa BPO xa Mahiselo ya le Hansi

Yi lulamerile eka ti tape to olova kumbe switirhisiwa leswi twaka ku hunguteka ka ku hisa. Fasitere: 115–135°C, 3–10 wa timinete.

Xikombiso: Eka 125°C eka oven, hafu ya vutomi bya BPO i kwalomu ka. 2.5 wa timinete, kutani 5 wa ti half-lives ti teka kwalomu ka 12.5 wa timinete. Ku hatlisa, mahiselo yanga tlakusiwa kuya eka 135°C (t1/2 ≈ 45 wa tisekoni), kuhetisa endlelo hi 5 wa timinete. Hambiswiritano, nyingiso wufanele ku nyikiwa eka timhaka ta CO2 micro-bubble; stepped heating kumbe ti intermediate nip rollers ta hlohleteriwa.

2. Xikimi xa DCP lexi Tiyeke xa Mahiselo ya le Henhla

Yi lulamerile eka tithepi to tiya na switirhisiwa leswi lavaka matimba ya kahle swinene yo khoma mahiselo yale henhla. Fasitere: 150–175°C, 5–15 wa timinete.

Xikombiso: Eka 160°C, hafu ya vutomi bya DCP i kwalomu ka. 1.5 wa timinete, kutani 5 wa ti half-lives ti lava 7.5 wa timinete. Ku tlakusa kuya eka 170°C swihunguta hafu ya vutomi kuya eka kwalomu ka. 0.8 wa timinete, ku fikelela kutlula 97% wa ku bola hi 5 wa timinete, ku fambelana na milayeni ya vuhumelerisi bya rivilo lerikulu. PTFE yi tshamisekile hi dimension eka mahiselo lawa, leswi endlaka leswaku leyi yiva fasitere ra kahle ra ti indasitiri.

IV. Tinhla ta Nkoka leti Tirhaka ta ku Fananisa

1. Ku tirhisana exikarhi ka Swihlawulekisi swa ku Hisisa na ku Bola hi Switepisi

Tirhisa gradient ya 'low-temperature initiation → high-temperature full crosslinking.' Xikombiso, hi DCP, rhanga hi pfumelela adhesive ku khuluka no tsakamisa PTFE eka 130°C, kutani u tlakusa mahiselo kuya eka 165°C ku hetisa ku horisa. Leswi swihunguta swihoxo swale henhla naswona swiendla leswaku ku khomiwa ka ti anchorage.

2. Data ya Hafu ya Vutomi Yi Fanele Ku Kalibhara Ku ya eka Xivumbeko xa Xiviri

Swisivela kumbe swintshuxekisi eka xivumbeko xa adhesive swinga cinca mpimo wa ku bola. Tirhisa DSC ku pima curing exothermic curve, kuma nkarhi wo fikelela maximum reaction rate eka mahiselo ya process, naswona back-calculate half-life leyi ringanaka kuya hi sweswo. U nga amukeli mimpimanyeto leyi tolovelekeke hi ku pfumala vutivi.

3. Ku tekeriwa enhlokweni ka Matimu ya ku Hisa ka Substrate

Filimi ya Teflon leyi vumbiweke hi ku ololoka yi nga ha hundza eka ku hunguteka ka mahiselo ehenhla ka 200°C. Loko ku tirhisiwa fasitere ra DCP ra mahiselo yale henhla, substrate yifanele kuva yi pre-annealed kutani low-shrinkage skived film yifanele ku hlawuriwa kuva yi sivela tape curling endzhaku ko horisiwa.

Hiku komisa: Hiku ya hi nkarhi wa xiviri wo hisa wa layini ya vuhumelerisi, hlawula ndzhawu ya mahiselo laha hafu ya vutomi yi enerisa 'n × hafu ya vutomi ≈ nkarhi wo tshama,' xisweswo ku fambelana kahle na swihlawulekisi swa ku bola swa BPO kumbe DCP eka endlelo ro horisa ra Teflon tape.

Rungula leri nga laha henhla ri nyikiwile hi Jiangsu OK New Material Technology Co., Ltd. , muendli wa malapi ya Teflon ya mahiselo ya le henhla.

Loko u lava ku dyondza swo tala hi vuxokoxoko bya swihlawulekisi, swiyimo swa xikombelo, na tindlela to endla hi ku landza swilaveko swa switirhisiwa swa hina hinkwaswo—ku katsa na malapi ya Teflon ya mahiselo ya le henhla, thepi ya mahiselo ya le henhla ya Teflon, mabandhi ya mesh ya mahiselo ya le henhla ya Teflon, mabandhi ya muchini wo namarhela lama nga riki na swirhabyani, malapi ya PTFE ya tlhelo rin’we, mabandhi yo fambisa ya mahiselo ya le henhla, na malapi ya fiberglass ya mahiselo ya le henhla—hi kombela u ntshunxeka ku hi tihlanganisa hi ku tirhisa:

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