Ukwenza ngcono i-PTFE Adhesive Tape Holding Power – Coating and Curing Process Optimization

Ukubamba amandla - ikhono leteyiphu enamathelayo ukumelana nengcindezi yokugunda nokuhlala endaweni ngaphansi komthwalo oqhubekayo, ikakhulukazi emazingeni okushisa aphakeme - kungenye yamamethrikhi okusebenza abaluleke kakhulu Itheyiphu yokunamathela ye-PTFE enezinga eliphezulu lokushisa . Amandla okubamba aphansi aholela ekusheleleni kwetheyiphu, izinsalela zokunamathela, kanye nokungcoliswa kwemishini.

Umgomo oyinhloko wokuthuthukisa amandla okubamba ukabili: thuthukisa amandla ahlangene wesendlalelo sokunamathisela futhi uqinise amandla okunamathisela phakathi kobuso phakathi kwe-adhesive ne-PTFE substrate..

I-Aokai PTFE ithuthukise izinqubo zokumboza nezokwelapha ukuze kuzuzwe ukusebenza kokubamba okuphezulu. Lo mhlahlandlela uhlanganisa izixazululo ezihlelekile kuzo zonke lezi zigaba ezimbili ezibalulekile zokukhiqiza.

Ukuthuthukiswa Kwenqubo Yokuhlanganisa - Ukwakha Isisekelo

Inqubo yokumboza inquma ngokuqondile ukwakheka, ukujiya okufanayo, namandla okubopha ne-substrate - isisekelo samandla okubamba amahle kakhulu.

1. I-Primer coating – ikhambi eliwumongo lokunamathela okungekuhle kwe-PTFE

I-PTFE ifaka amandla angaphezulu aphansi kakhulu (18-20 dynes/cm), okwenza ungqimba olunamathelayo luthambekele ekuxebukeni okuhlangene ngaphansi kwengcindezi ye-shear ephezulu. Inqubo yokumboza i-primer kufanele isetshenziswe ngaphambi kokunamathela okuphezulu.

• Ukukhethwa kwe-Primer: I-Silane coupling agents noma i-silicone primers ekhethekile (izixazululo ezihlanganiswe ne-tackifying resin kanye ne-silane esebenzayo) zamukelwa kabanzi. Ukwengeza i-silicone ye-PSA, i-vinyl noma i-epoxy functional silane-based primers iyakhethwa.

• Amaphuzu okulawula inqubo angukhiye:

  • Ifilimu yokuqala ezacile kakhulu: Lawula ukujiya kwefilimu eyomile phakathi kuka -0.5–2 μm - i-primer eyeqile yakha isendlalelo somngcele esibuthakathaka esinciphisa amandla okubamba.

  • Ukomisa kwangaphambili okwanele: I-solvent ehwamukayo ngokugcwele futhi uqedele ukufingqa/ukuxhumanisa kwasekuqaleni ngaphambi kokumboza phezulu, kuvimbela ukufuduka kwe-primer solvent ku-adhesive ephezulu.

  • Ukwelashwa kwe-in-line surface + i-primer coating: Yenza i-plasma eku-inthanethi noma ukwelashwa kwe-corona ku-PTFE substrate ngokushesha ngaphambi kokufaka isicelo sokuqala ukuze ugweme ukuncishiswa kokusebenza kwendawo.

2. Ukulawula okunembile kokunamathela kokunamathela nokufana

Amandla okubamba ngokuvamile akhuphuka ngogqinsi olunamathelayo, kodwa ukunamathela okuminyene ngokweqile kubhebhethekisa ukunamathela okunamathelayo ngaphansi kwezinga lokushisa eliphezulu futhi kwenze buthaka ukusebenza kokubamba.

• Ukuqina kwe-adhesive eyomile efanelekile: I-Silicone PSA ithola amandla aphezulu okubamba ekushukeni okomile okungama- 30-60 μm.

• Izindlela zokumboza ezinembayo eziphezulu: Yamukela ukunamathela kokhefana, ukunamathela kwe-slot die, noma ukunemba okuphezulu kwe-micro gravure ukuze ugcine ukubekezelela ukushuba kobude phakathi kuka- ±2 μm . Ubukhulu obungalingani bubangela ukugxila kwengcindezi, okuholela ekuqhekekeni kusukela endaweni encane kakhulu phakathi nokuhlolwa kwamandla.

3. I-Adhesive liquid pretreatment kanye nohlelo lokudla

• I-vacuum defoaming: Uketshezi olunamathelayo lwe-Degas ngaphansi kwe-vacuum ngemva kokuxutshwa noma ngaphambi kokumbozwa ukuze kugwenywe i-void enwetshiwe ngesikhathi sokwelapha, esebenza njengamaphoyinti okuqalisa ukuqhekeka ngaphansi komthwalo oqhubekayo.

• Ukuxutshwa okusemgqeni nokuvuthwa: Kuzinto ezimbili zokunamathisela i-silicone enamathelayo, sebenzisa ingxube emile ukuze uphakele ngokuqondile futhi ulawule isikhathi sokuhlala esiwuketshezi ukuze uqinisekise ukusabela okufanayo kokuqala futhi uqede izindawo ezihlangene ezibuthaka zasendaweni.

• Ukuphathwa kwenhlanzeko: Hlomisa amakhanda ambozayo ngezinto ezivalekile ezingangeni uthuli kanye noketshezi olunamathelayo lwesihlungi ngokusebenzisa amakhatriji okuhlunga angu-5–10 μm ukuze kuvinjelwe ukungcola okuyizinhlayiyana ezibangela ukugxila kwengcindezi.

Ukuthuthukisa Inqubo Yokwelapha - Ukukhiya Ukusebenza

Ukwelapha kunquma ukuminyana kokugcina kwe-crosslink, izinga lokucindezeleka kwangaphakathi, nokuqukethwe kwe-molecule encane eyinsalela - elawula ngokuqondile amandla ahlangene kanye nokumelana nezinga lokushisa eliphezulu.

1. Ukushisa okuhamba kancane kanye nokwelapha okunezindawo eziningi

Ukuqonda okubalulekile: Ukushisa kwe-stepwise kusiza ukwakheka kweyunifomu, inethiwekhi eminyene yezinhlangothi ezintathu ngaphakathi kwe-adhesive, iletha ukusebenza kokubamba okuphakeme kakhulu uma kuqhathaniswa nokubhaka kwesiteji esisodwa sezinga lokushisa eliphezulu. Izinga lokushisa elinganele liphumela ekuxhumaneni okunganele kanye nongqimba oluthambile oluhlangene; ukushisa ngokweqile kungase kubangele ukuguga okunamathelayo noma ukucindezeleka okukhulu kwangaphakathi kusuka ekuncipheni okushisayo okungafani.

2. Ukwelashwa kwangemva kokuphulukiswa kanye nokuvuthwa

• Ukwelashwa kwangaphakathi komugqa: Setha ingxenye ye-ovini enwetshiwe ngaphambi kokusonta ngezinga lokushisa elingaphansi kancane kunezinga lokushisa eliphakeme lokuxhumanisa izinga lokushisa ukuze welule umlando oshisayo futhi ufeze ukusabela okuhlanganayo okugcwele.

• Ukuphulukiswa kokuvuthwa kwamanxeba: Beka amaroli etheyiphu yesilonda kuhhavini ongashintshile ( 40-60°C amahora angu-24-48 ) ukuze ugcine umile. Le nqubo:

  • Iqedela ukusabela kokuphambana kwensalela kancane

  • Ikhulula ingcindezi yangaphakathi ekhiqizwe ukunwebeka okushisayo okungafani phakathi kwe-substrate ne-adhesive

  • Ithuthukisa kakhulu ukusebenza kwesikhathi eside okuthwala umthwalo ngaphansi kwezinga lokushisa eliphezulu

• I-annealing ye-tension annealing: Faka ukudonsa kancane komjikelezo kutheyiphu egoqiwe ngesikhathi sokuvuthwa ukuze usize ukukhululwa kwengcindezi.

3. Umkhathi wokwelapha kanye nokulawulwa kwemvelo

• Ukuphathwa kwemvelo enomswakama ophansi: Ngokunamathela kwe-silicone ephulukisayo, umswakama ophakathi nendawo ubamba iqhaza ekuxhumaneni, kuyilapho umswakama omningi udala ukushesha isikhumba futhi kuvimbela ukuphulukiswa okujulile. I-adhesive silicone adhesive idinga ukuhlukaniswa okuqinile kwezinhlanganisela ezinesulfure kanye ne-nitrogen ukuze kuvinjelwe ubuthi be-catalyst.

4. Ukulawula ukucindezeleka nokuncipha kokucindezeleka

Ifilimu ye-PTFE ijwayele ukunwetshwa kanye nokuncipha okushisayo ngaphansi kwezinga lokushisa eliphezulu.

• I-low-tension conveyance: Gcina ukungezwani okungaguquki nokuncane kwe-substrate ngaphakathi kuhhavini ukuze ugweme ukuphulukiswa ngaphansi kwesimo sokunamathela eseluliwe. Ngemuva kokupholisa, i-substrate iyancipha izihloko ezinamathela ekucindezelekeni okuqhubekayo / ukugunda kwangaphakathi - kunciphisa kakhulu amandla okubamba.

• Ukushisisa kwangaphambili kwe-substrate: Shisisa kuqala i-PTFE substrate ibe phezulu kancane kunezinga lokushisa loketshezi olunamathelayo ngaphambi kokugqunywa ukuze kuthuthukiswe ukumanzisa kwento enamathelayo futhi unciphise ukushwabana okukhulu kokushisa okushisayo endaweni yokungena kuhhavini.

Isifinyezo - Uhlu Lokuhlola Lokuhlanganisa Nokwelapha Lokuthuthukisa

I-Aokai PTFE isebenzisa lezi zinqubo zokunameka nokuphulukisa ukuze kukhiqizwe itheyiphu yokunamathela ye-PTFE enamandla okubamba aphakeme. Kumakhasimende adinga ukusebenza okuqondile kokubamba emazingeni okushisa aphakeme, singalungisa ukwakheka kweprimer, ukujiya kokunamathela, kanye namaphrofayili okwelapha ukuze ahlangabezane nezidingo zakho.

Ulwazi lobuchwepheshe olungenhla luhlinzekwa ngu I-Jiangsu Aokai New Materials Technology Co., Ltd.

Uma ufuna ukuthola imininingwane eningiliziwe, izimo zohlelo lokusebenza nezixazululo ezenziwe ngokwezifiso zohlu oluphelele lomkhiqizo wethu ohlanganisa i-PTFE indwangu yokushisa ephezulu, i-PTFE high-temperature adhesive tape, PTFE high-temperature mesh belt, ibhande lokucindezela ukushisa elingenamthungo, indwangu ye-PTFE enohlangothi olulodwa, i-high-temperature resistant-heater, sicela uxhumane nathi nge-fiber-cloth evikela ukushisa ngezansi.

• UMnu. Guo: +86 18944819998

• UMnu. Liu: +86 13705266308

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