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 yeparameter emisela ukuba i-adhesive surface yokugqibela igudileyo, ayinasiphene, kwaye ihlala ingqindilili, okanye igqunywe kwimingxuma, i-craters, kunye ne-streaks.

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 iteyiphu ye-PTFE ephezulu.

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 umphezulu ogudileyo. 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 iphume.

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 ophakathi. 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 kwindawo ezingamanzi kakuhle - 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, ezicotha-cothayo (i-toluene, ixylene, 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 imijelo yokumanzisa.

Isishwankathelo - Amanqaku aPhambili oLawulo loMgangatho woMgangatho

I-Aokai PTFE ilungiselela iiparamitha zokwaleka - umxube we-solvent, iprofayili yokomisa, kunye ne-substrate pretreatment - 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, i-high-temperature resistant fabrics nceda iibhanti ze-fiber ezikwazi ukumelana nobushushu:

• Mnu. Guo: +86 18944819998

• UMnu. Liu: +86 13705266308

Sihlala sixhasa ifilosofi yobungcali kunye nokuthembeka, kwaye sizimisele ukukunika isisombululo esisodwa kunye neenkonzo ezicingayo.