I-PTFE Tape Adhesion vs Temperature: Ungathuthukisa Kanjani

I-Jiangsu Aokai New Materials, umkhiqizi womthombo ochwepheshe we-PTFE itheyiphu yokushisa okuphezulu, wabelana ngemininingwane yobungcweti ngawe.

Itheyiphu ye-PTFE (Teflon) enezinga eliphezulu lokushisa ngokuvamile ingasetshenziswa ngokuqhubekayo ebangeni lokushisa lika -196℃ kuya ku-260℃ . Ezinhlelweni eziningi, umkhawulo wokumelana nezinga lokushisa wetheyiphu uvinjelwe ungqimba olunamathelayo  kune-PTFE substrate. Ukusebenza kwayo kulandela imithetho ecacile ehlobene nezinga lokushisa:

Ukusebenza kwe-Adhesive kwehla njengoba izinga lokushisa likhuphuka  Ngokukhula kwezinga lokushisa, okunamathelayo kuyathambisa kancane kancane, kunwabuzele futhi konakale, okuholela ekunciphiseni kwamandla okuhlangana. Ngokwe-macroscopically, lokhu kubonakala njengokwehla kokubamba ukunamathela.

Umkhawulo wokusebenza unqunywa uhlobo lokunamathela  Izinamathiselo ezihlukene zinamazinga okushisa okuhluleka ahluke kakhulu:

 

Ukuze kuthuthukiswe isikhathi sokubamba izinga lokushisa eliphezulu , ukuthuthukiswa kwenziwa ngokuyinhloko kusukela ezicini ezintathu: ukwakheka kokunamathelayo, ukusebenza kwe-substrate, kanye nesakhiwo sokuhlanganisa ubuso ngobuso.

1. Isendlalelo Esinamathelayo: Thuthukisa Isixhumanisi Esibuthakathaka

·  Khetha isistimu yokunamathela ekwazi ukumelana nokushisa okuphezulu : Beka kuqala ingcina yokunamathela ezwela ukucindezela kwe-silicone ngezimo zokusebenza zesikhathi eside zezinga lokushisa eliphezulu.

·  Ukuguqulwa kwe-Fluorocarbon : Shintsha ingcina ye-silicone ngezinhlanganisela ze-fluorocarbon ukuze ukhuphule izinga lokushisa lengilazi (Tg) liye ku-230℃. Ngemuva kwamahora angu-48 okusetshenziswa okuqhubekayo ku-260 ℃, izinga lokugcinwa kokunamathela lisadlula ama-85%.

·  Ngenisa inethiwekhi ye-crosslinking : Yakha amanethiwekhi e-nano-scale crosslinking ukuze uthuthukise kakhulu amandla ahlangene kanye nokumelana nokugunda kwesendlalelo sokunamathela emazingeni okushisa aphezulu.

·  Engeza iziqinisi ezishisayo : Faka i-phenol evinjiwe nezinye iziqinisi ezishisayo kufomula ukuze uvimbele ngempumelelo ukuwohloka kwe-oxidative ngaphansi kokushisa okuphezulu.

2. Isendlalelo se-Substrate: Phakamisa umkhawulo wokumelana nezinga lokushisa usuwonke

·  Ukuguqulwa kwe-Nano-filler : Engeza i-nano silica, i-boron nitride nanotubes namanye ama-nanoparticles ku-PTFE substrate ukuze wenze amaphuzu ahlanganisayo abonakalayo. Izinga lokushisa lokuhlanekezelwa kokushisa linganyuka ngo-20–30℃, kuyilapho ligcina ngaphezu kwama-90% wokunamathela kokuqala ku-260℃.

·  Ukwelashwa kokuphambana kwamangqamuzana : Amaketanga emolekyuli e-Crosslink PTFE ukuphakamisa izinga lokushisa lesevisi eliqhubekayo lifike ku-300℃.

·  Ukuqinisa i-Fiber : Engeza u-25% we-glass fibre noma i-carbon fiber ukuze ukhulise ukumelana ne-creep ngo-300%, okuvumela ukusetshenziswa okuqhubekayo kufika ku-280℃.

3. I-Interface & Design of Structural: Thuthukisa ukuzinza kwesibopho

·  Ukwelashwa kwe-substrate ebusweni : Faka ukwelashwa kwe-plasma noma ukushumeka kwamakhemikhali endaweni ye-PTFE ukuze ukhuphule ama-rough kanye nomsebenzi ongaphezulu, uqinise ukunamathela kobuso futhi ugweme ukubola ezingeni lokushisa eliphezulu.

·  Engeza ungqimba olumaphakathi lwesithiyo : Faka isendlalelo sokuhlukanisa se-polyimide (PI) phakathi kwe-PTFE substrate ne-adhesive ukuze uvimbele ukungena okunamathelayo nokufuduka ngaphansi kwezinga lokushisa eliphezulu, ukuthuthukisa ukuqina kwesakhiwo sonke.

·  Lungiselela ukwakheka okuyinhlanganisela : Yamukela ukwakheka kwenhlanganisela yezendlalelo eziningi: I-PTFE enamathelayo + i-substrate eqinisayo + ungqimba oluqinile lwezinga lokushisa eliphezulu , ukulinganisela ukumelana nokushisa nokusebenza kokunamathela ngokuphelele.

·  Gcina imvume yokunweba okushisayo : I-coefficient yomugqa yokwandisa ye-PTFE cishe iphindwe ka-10 kunensimbi.

Gcina igebe elingu -0.15–0.3 mm  ekwakhiweni kwesakhiwo ukuze ukhulule ingcindezi yokushisa ngempumelelo.

Okuqukethwe okungenhla kwezobuchwepheshe kunikezwa ngu I-Jiangsu Aokai New Materials Technology Co., Ltd.

Uma udinga ulwazi olwengeziwe ngemingcele yezobuchwepheshe, izimo zohlelo lokusebenza nezixazululo ezenziwe ngokwezifiso zomugqa wethu womkhiqizo ogcwele - okuhlanganisa indwangu ye-PTFE yokushisa okuphezulu, itheyiphu ye-PTFE yokushisa ephezulu, ibhande le-mesh lokushisa eliphezulu le-PTFE, ibhande lomshini wokuhlanganisa elingenamthungo, indwangu ye-PTFE enohlangothi olulodwa, ibhande lamahhala elimelana nengilazi elivikelayo — sicela umelane nathi

·  Inombolo yocingo: Mnu. Guo +86 18944819998

·  Inombolo yocingo: Mnu. Liu +86 13705266308

Sihlala sinamathela kufilosofi yebhizinisi yobungcweti nobuqotho, futhi silwela ukukunikeza izisombululo zezimboni ezinganqamuki kanye nesevisi ecabangelayo yangemva kokuthengisa.