Ukuphucula i-PTFE Adhesive Tape Holding Power – Ukwaleka kunye nokuNyangwa kweNkqubo

Ukubamba amandla - ukukwazi kweteyiphu encamathelayo ukumelana noxinzelelo lokucheba kunye nokuhlala kwindawo phantsi komthwalo oqhubekayo, ngakumbi kumaqondo obushushu aphakamileyo - yenye yezona metrics ezibaluleke kakhulu zokusebenza Iteyiphu encamathelayo yobushushu obuphezulu be-PTFE . Amandla okubamba kakubi akhokelela ekutyibilikeni kweteyiphu, intsalela encamathelayo, kunye nongcoliseko lwezixhobo.

Umgaqo ongundoqo wokuphucula amandla okubamba uphindwe kabini: ukunyusa amandla okubambisana kwe-adhesive layer kunye nokuqinisa amandla okubambelela phakathi kwe-adhesive kunye ne-PTFE substrate..

I-Aokai PTFE iye yalungisa zombini iinkqubo zokugquma kunye nokunyanga ukufezekisa ukusebenza okuphezulu. Esi sikhokelo siquka izisombululo ezicwangcisiweyo kuzo zonke ezi zigaba zimbini zokuvelisa.

UPhuculo lweNkqubo yokuNgquma-Ukwakha iSiseko

Inkqubo yokwaleka imisela ngokuthe ngqo ubume, ukufana kobuninzi, kunye namandla okudibanisa kunye ne-substrate - isiseko samandla abambekayo agqwesileyo.

1. I-Primer yokwambathisa – isisombululo esingundoqo sokuncamathelisa kakubi kwe-PTFE

I-PTFE ibonakalisa amandla aphantsi kakhulu (18-20 dynes/cm), yenza umaleko wokuncamathelisa ube lula ukuxobuka okudityanisiweyo phantsi koxinzelelo lokucheba lobushushu obuphezulu. Inkqubo yokugquma i-primer kufuneka iphunyezwe phambi kokunamathelisa okuphezulu.

• Ukukhetha i-Primer: i-Silane coupling agents okanye i-primers ekhethekileyo ye-silicone (izisombululo ezixutywe ne-tackifying resin kunye ne-silane esebenzayo) zamkelwa ngokubanzi. Ukongezwa kwe-silicone ye-PSA, i-vinyl okanye i-epoxy esebenzayo ye-silane-based primers ikhethwayo.

• Iindawo eziphambili zolawulo lwenkqubo:

  • Ifilimu ye-ultra-thin primer: Lawula ubukhulu befilimu eyomileyo ngaphakathi kwe -0.5-2 μm - i-primer egqithisileyo yenza umda obuthathaka onciphisa amandla okubamba.

  • Ukomisa kwangaphambili okwaneleyo: I-solvent e-evaporate ngokupheleleyo kunye nokugqibezela i-condensation yangaphambili / i-crosslinking ngaphambi kokugubungela okuphezulu, ukuthintela ukufuduka kwe-solvent kwi-adhesive ephezulu.

  • Unyango lomphezulu womgca we-in-line + i-primer coating: Yenza i-plasma ye-intanethi okanye unyango lwe-corona kwi-substrate ye-PTFE ngokukhawuleza ngaphambi kwesicelo se-primer ukuphepha ukuthotywa kokusebenza komphezulu.

2. Ukulawulwa ngokuchanekileyo kobunzima bokunamathela kunye nokufana

Ukubamba amandla ngokubanzi kuyenyuka ngobungqingqwa bokuncamathelisa, kodwa ukugquma okungqindilili ngokugqithisileyo kuwenza mandundu ukuncamathela okuncamathelayo phantsi kobushushu obuphezulu kwaye umva kwenze buthathaka ukubamba ukusebenza.

• Olona bunzima bomileyo bokuncamathelisa obomileyo: I-Silicone PSA ifezekisa awona mandla okubamba kubunzima obomileyo obuyi- 30-60 μm.

• Iindlela zokugquma ezichanekileyo: I-Adopt comma coating, i-slot die coating, okanye i-high-chane-chaneke i-micro gravure coating ukugcina ubude kunye nokunyamezela ukuguquguquka ngaphakathi kwe- ± 2 μm . Ubunzima obungalinganiyo bubangela uxinzelelo loxinzelelo, olukhokelela ekuqhekekeni kokuqala ukusuka kwindawo encinci ngexesha lovavanyo lwamandla.

3. I-adhesive liquid pretreatment kunye nenkqubo yokutya

• I-vacuum defoaming: I-Degas adhesive liquid phantsi kwe-vacuum emva kokuxuba okanye ngaphambi kokugubungela ukuphepha i-voids eyandisiweyo ngexesha lokunyanga, elisebenza njengeendawo zokuqalisa ukuqhekeka phantsi komthwalo oqhubekayo.

• Ukuxutywa kwe-in-line kunye nokuvuthwa: Kwi-adhesive ye-silicone yamacandelo amabini, sebenzisa i-static mixer ukwenzela ukondla ngokuthe ngqo kunye nokulawula ixesha lokuhlala kwamanzi ukuqinisekisa ukusabela okufanayo kokuqala kunye nokuphelisa iindawo ezidibeneyo ezibuthathaka zendawo.

• Ulawulo lococeko: Xhobisa iintloko zokugquma ngeendawo ezivale uthuli kunye nolwelo oluncamathelayo lokucoca ngokusebenzisa iikhatriji ze-5-10 μm zokucoca ukuthintela ukungcola okubangela uxinzelelo.

ULungiso lweNkqubo yokuNyanga-Ukutshixa kwiNdlela yokuSebenza

Ukunyanga kugqiba ukuxinana kokugqibela kwe-crosslink, inqanaba loxinzelelo lwangaphakathi, kunye nentsalela ye-molecule encinci ye-molecule - elawula ngokuthe ngqo amandla adibeneyo kunye nobushushu obuphezulu bokunyuka.

1. Ukufudumeza okuhamba ngamanyathelo kunye nokunyanga kwiindawo ezininzi

Ukuqonda okuphambili: Ukufudumeza okuhamba ngenyathelo kunceda ukwakheka kweyunifomu, uthungelwano oluxineneyo olunamacala amathathu ngaphakathi kokuncamathelisa, ukuhambisa ukusebenza okuphezulu kakhulu kokubamba xa kuthelekiswa nenqanaba elinye lokubhaka lobushushu obuphezulu. Ubushushu obunganeleyo bubangela ukungonelanga kwe-crosslink kunye ne-soft cohesive layer; Ukushisa okugqithisileyo kunokubangela ukuguga okuncamathelayo okanye uxinzelelo olukhulu lwangaphakathi ukusuka ekuncipheni okungafaniyo kwe-thermal.

2. Emva kokunyanga kunye nokuvuthwa unyango

• Emgceni wasemva kokunyanga: Seta icandelo le-oveni eyandisiweyo phambi kokuba ujike ngeqondo lobushushu elingaphantsi kancinane kunencopho yobushushu bokudibanisa ukongeza imbali ye-thermal kwaye ufezekise ukusabela okupheleleyo.

• Ukuphulukisa ukuvuthwa kwe-Roll: Beka i-tape rolls kwi-oven ehlala rhoqo ( 40-60 ° C kwiiyure ezingama-24-48 ) ukugcina i-static. Le nkqubo:

  • Igqibezela intsalela yokusabela kokuhlangana kancinane

  • Ikhulula uxinzelelo lwangaphakathi oluveliswa kukungahambelani kokwandiswa kwe-thermal phakathi kwe-substrate kunye ne-adhesive

  • Iphucula kakhulu ukusebenza kwexesha elide lokuthwala umthwalo phantsi kobushushu obuphezulu

• Ukuphelisa uxinzelelo olukwinqanaba: Faka uxinzelelo oluncinci lwebhayisikile kwiteyiphu eqengqelekayo ngexesha lokuvuthwa ukunceda ukukhulula uxinzelelo.

3. Ukunyanga umoya kunye nolawulo lokusingqongileyo

• Ulawulo lwemekobume yokufuma okuphantsi: Kwi-condensation-cure silicone adhesive, ukufuma okuphakathi kwe-ambient kuthatha inxaxheba kwi-crosslinking, ngelixa ukufuma okugqithisileyo kubangela ukukhawuleza kwesikhumba kwaye kuthintele ukuphiliswa okunzulu. I-adhesive ye-silicone eyongezelelweyo-yonyango ifuna ukuhlukaniswa okungqongqo kwesulfure kunye ne-nitrogen-containing compounds ukukhusela i-catalyst poisoning.

4. Ukulawulwa koxinzelelo kunye nokuncipha koxinzelelo

Ifilimu ye-PTFE ithambekele ebudeni kunye nokuncipha kwe-thermal phantsi kobushushu obuphezulu.

• Ukuhanjiswa koxinzelelo oluphantsi: Gcina ukuxinana okungaguqukiyo kunye nokuncinci kwe-substrate ngaphakathi kwi-oveni ukunqanda ukunyanga phantsi kwemeko yokuncamathelisa eyoluliweyo. Emva kokupholisa, i-substrate shrinkage subjects adhesive to persissive compressive/shear internal stress - inciphisa kakhulu amandla okubamba.

• I-substrate preheating: Tshisa i-substrate ye-PTFE ibe phezulu kancinane kunobushushu bolwelo oluncamathelayo phambi kokugquma ukunyusa ukumanzisa kokugquma kunye nokunciphisa ukushwabana komothuko omandla kwi-oven inlet.

IsiShwankathelo-Uluhlu lokuSebenza kunye nokuNyanga

I-Aokai PTFE isebenzisa ezi nkqubo zokwaleka zilungiselelwe kunye nokunyanga ukuvelisa iteyiphu encamathelayo ye-PTFE enegunya eliphezulu lokubamba. Kubathengi abafuna ukusebenza okuthe ngqo kumaqondo obushushu aphakamileyo, sinokuhlengahlengisa iifomyulwa zeprimer, ubukhulu bokuncamathelisa, kunye neeprofayili zokunyanga ukuhlangabezana neemfuno zakho.

Olu lwazi lungentla lunikwe ngu I-Jiangsu Aokai yeZixhobo eziNtsha zeTekhnoloji Co., Ltd.

Ukuba ufuna ukufumana iinkcukacha ezicacileyo, iimeko zesicelo kunye nezisombululo ezilungiselelwe uluhlu olupheleleyo lweemveliso ezibandakanya i-PTFE ilaphu eliphezulu lobushushu, i-PTFE iteyiphu yokuncamathela yobushushu obuphezulu, i-PTFE high-temperature mesh belt, ibhanti lokushicilela ubushushu obungenamthungo, ilaphu le-PTFE elisecaleni, elinobushushu obuphezulu obunganyangekiyo, nceda uqhagamshelane nathi ngelaphu le-fiber elikwazi ukumelana nobushushu.

• Mnu. Guo: +86 18944819998

• UMnu. Liu: +86 13705266308

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