Indlela iqondo lokunyibilikisa lokunyibilikisa elichaphazela ngayo umgangatho we-PTFE weTape yoKugquma

Kwimveliso ye I-PTFE iteyiphu yobushushu obuphezulu , i-adhesive ye-silicone yoxinzelelo lwe-adhesive isetyenziswa njengesisombululo esisekelwe kwi-solvent. Njengoko itheyiphu egqunyiweyo ihamba kwi-oven yokomisa, i-solvent iyaphuphuma, ishiya ngasemva i-adhesive layer. Ireyithi eyenzeka ngayo le nto - iqondo lokunyibilika kwe-solvent - yinkqubo engundoqo yepharamitha emisela ukuba indawo yokuncamathela yokugqibela igudileyo, ayinasiphene, kwaye ihlala ingqindilili, okanye igqunyelelwe kwimingxuma, imingxuma, kunye nemivimbo.

I-Aokai PTFE iye yalungiselela iinkqubo zokugquma kumawaka eemveliso eziqhutywayo. Esi sikhokelo sichaza ukuba izinga lokuguquguquka lichaphazela njani umgangatho, ukubunjwa kwepinhole, kunye neziphene ze-crater - kunye nendlela yokulawula umgangatho ophezulu we-PTFE tape.

Indlela i-Volatilization Rate eyichaphazela ngayo iNqanaba-I-Viscosity Trade-Off

Inqanaba likhono lefilimu encamathelayo emanzi ukuphelisa imivimbo yokugquma, imivimbo enqamlezileyo, kunye nokuthungwa kwe-orange-peel, okwenza indawo egudileyo. Amandla okuqhuba kukuxinana komphezulu; ukuxhathisa yi-viscosity.

1. Ukukhawuleza kakhulu - ukuhluma umphezulu kuyeka ukulinganisa

Xa isinyibilikisi siphuphuma ngokukhawuleza kakhulu, i-solvent concentration kumphezulu yehla ngokukhawuleza. I-Silicone PSA (isisombululo se-polysiloxane esinemolekyuli ephezulu) sinobuzaza obugqithisileyo. I-surface layer viscosity iphakama ngokukhawuleza - nokuba yenze i-viscosity ephezulu 'yesikhumba' phantse ngoko nangoko.

Olu lusu lutshixa incamathelisa engaphantsi enganyangekiyo endaweni yayo. I-adhesive ayisakwazi ukuhamba ukuya kwinqanaba le-streaks okanye amanqaku e-blade. Iimpawu ezingaqhelekanga ezenziwe ngexesha lokugquma zilungiswa ngokusisigxina.

2. Ukucotha kakhulu - ukudodobala kunye nokumanzisa

Ukuba i-solvent iyancipha ngokukhawuleza, i-adhesive layer ihlala i-low-viscosity liquid ixesha elide. Nangona oku kuvumela ixesha lokulinganisa, ubunzima bubangela:

• I-Sagging (incamatheliswayo ibaleka ukuya ezantsi kumphezulu othe nkqo)

• Imiphetho engqindilili (amadama ancamathelayo kwincam yendawo egqunyiweyo)

• I-Dewetting - kwi-low-surface-energy PTFE substrates (i-critical surface tension kuphela 18-20 mN/m), ukumanzisa ixesha elide kunokubangela ukuba i-adhesive icuthe kwaye ikhuphe ukusuka kwi-substrate, yonakalisa ukuguda komphezulu.

Indlela i-Volatilization Rate eyenza ngayo iPinholes

Imingxuma emincinci yimingxuma emincinci kwi-adhesive layer. Zenza xa i-solvent okanye amaqamza omoya evaleleka kwaye agqabhuke kwindawo eqinileyo phambi kokuba incamathiso iphinde ihambe.

1. I-Mechanism 1 - i-solvent ebilayo ibanjwe phantsi kwesikhumba

Xa i-tape egqunyiweyo ingena kwi-oven yokomisa, ukunyuka kweqondo lokushisa elibukhali kunye ne-ultra-fast-fast solvent volatilization iphilisa ifilimu kuqala. Isinyibilikisi esivaleleke ngaphakathi kumaleko siyaba ngumphunga ngamandla, senze amaqamza. Nje ukuba uxinzelelo lweqamza lwangaphakathi luphule ulusu oluqinileyo, ifilimu elulwelo egqabhukileyo ayinakuphinda iphinde iphinde iphole – ishiya imingxunya esisigxina okanye imingxuma efana nentaba-mlilo.

2. Inkqubo yesi-2 - amaqamza akanakubaleka

Amaqamza amancinci ahlala efakwe ngexesha lokutya kunye nokuncamathelisa. Bafuna ixesha elaneleyo lokudada phezulu, ukuphuka, kunye nokuphilisa kwi-viscosity ephantsi. Ukuba umphezulu wolusu ukhawuleza ngenxa yokoma ngokukhawuleza, amaqamza akakwazi ukubaleka kwaye agxininiswe njengemingxuma.

3. Inkqubo yesi-3 – ukumanzisa kakubi kwemingxuma emincinane

I-volatilization yangaphambili i-spikes i-adhesive viscosity ngokukhawuleza, ithintela isisombululo sokukwazi ukugcwalisa i-micro-pits ngokucothayo kwaye ugxothe umoya we-interfacial. Oku kubangela iziphene zokumanzisa ezixineneyo ezinjengomngxunya emva kokoma.

Indlela iqondo lokuguquguquka okubangela ngayo iiCretha (iiDimples)

IiCreyitha zincinci, zingqukuva ezingqukuva kumphezulu wokuncamathelisa, zahlukile kwimingxuma yokuqhotsa. Zibangelwa kukungalingani koxinzelelo lwasekhaya.

1. Inkqubo 1 - amaconsi amanzi ajikiweyo

I-volatilization ekhawulezayo ye-solvent ifunxa ubushushu obukhulu bomphunga, ipholise ngokukhawuleza ifilimu emanzi kunye nomphezulu we-substrate. Ukuba iqondo lobushushu lehla ngaphantsi kwendawo yombethe, umphunga wamanzi osemoyeni uyajiya ube ngamathontsi amancinci kwifilimu emanzi.

• Uxinzelelo lwamanzi phezu komhlaba: ~ 72 mN/m

• Uxinzelelo lwe-Surface adhesive silicone: 20-25 mN / m

Lo mahluko mkhulu udala ukuthambeka komphezulu wengingqi oqhuba incatho ejikelezayo ukuba ishwabene kumathontsi, ishiya imingxuma emva kokoma.

2. Inkqubo yesi-2 – imingxuma ebangelwa kungcoliseko

Ukungcola okuphantsi komphezulu (i-silicone micro-droplets, igrisi) ngokuqinisekileyo ikhona kwi-adhesive okanye kwindawo yokusebenza. Ezi zinto zingcolileyo zenza amaziko oxinzelelo oluphantsi kwifilimu emanzi. Ngaphantsi kwempembelelo yeMarangoni, i-adhesive iphuma ngaphandle kula maziko, idala ukudandatheka.

• I-volatilization ephakathi ivumela ukudakumba ukuba kuzipholise ngokuncamathela ngasemva.

• Ukuguquguquka okukhawulezileyo okugqithisileyo kuthintela ulwelo lokungamanzi phambi kokuphiliswa – ii-craters zitshixiwe ngokusisigxina.

3. Indlela yesi-3 – imingxuma yokumanzisa ngenxa yokungamanzi ngokwaneleyo

Iisubstrates ze-PTFE zinoxinzelelo olubalulekileyo lomphezulu we-18–20 mN/m kuphela – kanye kumda wokumanzisa okunokwenzeka. I-adhesive ye-silicone idinga ifestile eyaneleyo ye-viscosity ephantsi ukuze isasaze kwaye imanzise umphezulu we-thermodynamically. Ukuba isinyibilikisi siguquka ngokukhawuleza kakhulu, into encamathelayo iphulukana nolwelo olumanzi phambi kokuba imanziswe ngokupheleleyo. Ngexesha lokomisa, ukucutheka komthamo kunye nokuxinana komphezulu kunyanzelise ukuncamathelisa ukuncamathela, okushiya ii-micro-craters kwiindawo ezimanziswa kakubi – zibonakala njengendawo ephawulweyo.

Izisombululo-Ukulawula njani ukuVolatilization kwi-Coating-Free Coating

Isicwangciso esifanelekileyo sokunyibilikisa isinyibilikisi sisebenzisa ibhalansi yemithamo :

1. Indlela yokumisa imigangatho emibini

2. Iinkqubo zokunyibilikisa ezixutyiweyo

Sebenzisa umxube wezinyibilikisi ezinamanqaku ahlukeneyo okubilisa:

• Izinyibilikisi ezilungileyo ezibilisa kakhulu, ezicothayo (i-toluene, i-xylene, okanye i-aromatics/esters) – eyona nto iphambili – iqinisekisa ukunyibilika kunye nexesha elaneleyo lokulinganisa.

• Isixa esincinci se-solvents ephakathi / ephantsi-ebilisa ngokukhawuleza - ixutywe ukulungisa isantya sokumisa ngokubanzi.

3. Ukulawula ubushushu be-gradient kwi-oven yokomisa

• Ubushushu obuphantsi kwindawo yokungena - ukucotha kokuqala ukuguquguquka komgangatho.

• Ubushushu obuphakathi kwindawo ephakathi - ukomisa okulawulwayo.

• Ubushushu obuphezulu ekuphumeni - ukumila ngokukhawuleza kokugqibela.

Gwema ukufudumeza okubukhali kwinqanaba lokungena - oku kubangela ukukhupha ngokukhawuleza.

4. Amanyathelo ancedisayo

• Lawula ukufuma kwe-ambient - thintela ukuxinana kwamanzi kwifilimu emanzi.

• Unyango lwe-corona ekwi-Intanethi ye-PTFE substrate – iphakamisa amandla angaphezulu, iphucula ukumanzisa, inciphisa imigqomo yokumanzisa.

Isishwankathelo - Amanqaku aPhambili oLawulo loMgangatho woMgangatho

I-Aokai PTFE ilungiselela iiparamitha zokwaleka – umxube we-solvent, iprofayili yokomisa, kunye nonyango lwe-substrate – ukuvelisa iteyiphu ye-PTFE enemigangatho encamathelayo egudileyo, engenasiphene. Qhagamshelana nathi ngenkxaso yenkqubo okanye iinkcukacha zokwaleka ngokwesiko.

Lo mxholo ungentla unikwe ngu I-Jiangsu Aokai yeZixhobo eziNtsha zeTekhnoloji Co., Ltd.

Ukuba unqwenela ukufunda ngakumbi malunga neenkcukacha ezicacileyo, iimeko zesicelo kunye nezisombululo ezilungiselelwe uluhlu lwethu olupheleleyo lwemveliso, kubandakanywa amalaphu e-PTFE anobushushu obuphezulu, iiteyiphu ze-PTFE ezinobushushu obuphezulu, amabhanti e-mesh ye-PTFE, amabhanti omatshini wokubopha angenamthungo, ilaphu le-PTFE elinamacala elinye, amalaphu anobushushu obuphezulu obunganyangekiyo, kunye ne-fiberglass enganyangekiyo.

• Mnu. Guo: +86 18944819998

• UMnu. Liu: +86 13705266308

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