PTFE Tape Adhesion vs Temperature: Alesi Nàwɔ Anyo Ðe Edzi

Jiangsu Aokai New Materials, si nye PTFE ƒe dzoxɔxɔ gã ƒe kasɛt wɔla si nye dɔnyala ƒe dzɔtsoƒe, ma dɔnyala ƒe gɔmesesewo na wò.

Zi geɖe la, woate ŋu azã PTFE (Teflon) ƒe dzoxɔxɔ gã ƒe kasɛt ɣesiaɣi le dzoxɔxɔ si tso -196°C va ɖo 260°C me . Le dɔwɔwɔ akpa gãtɔ me la, dzoxɔxɔ ƒe tsitretsitsi ƒe seɖoƒe si le kasɛt la ŋu la nye esi wotsɔa nusi léna ɖe nu ŋu la xea mɔ na  tsɔ wu PTFE ƒe anyigba. Eƒe dɔwɔwɔ zɔna ɖe se siwo me kɔ siwo ku ɖe dzoxɔxɔ ŋu dzi:

Nulénu ƒe dɔwɔwɔ dzi ɖena kpɔtɔna ne dzoxɔxɔ le dzi yim  Ne dzoxɔxɔ le dzidzim ɖe edzi la, nulénu la fa vivivi, eʋuʋuna eye wògblẽna gɔ̃ hã, si wɔnɛ be nulénu ƒe ŋusẽ dzi ɖena kpɔtɔna. Le nukpɔkpɔ gã me la, esia dzena abe alesi woléa nu ɖe ​​nu ŋu ƒe ɖiɖi ene.

Dɔwɔwɔ ƒe dzidzenu si woɖo to aŋenu ƒomevi dzi  Alénu vovovowo ƒe kpododonu ƒe dzoxɔxɔ to vovo kura:

 

To improve the high-temperature holding time , wowɔa optimization koŋ tso akpa etɔ̃ me: adhesive ƒe wɔwɔme, substrate ƒe dɔwɔwɔ, kple interfacial bonding structure.

1. Adhesive Layer: Do Kadodo Gbɔdzɔgbɔdzɔ la ɖe ŋgɔ

·  Tia dzoxɔxɔ gã si te ŋu nɔa te ɖe adhesive system : Ðo nɔƒe gbãtɔ silicone nyaƒoɖeamenu sensitive adhesive na ɣeyiɣi didi ƒe dzoxɔxɔ gã dɔwɔwɔ nɔnɔmewo.

·  Fluorocarbon ƒe tɔtrɔ : Trɔ asi le silicone adhesive ŋu kple fluorocarbon compounds be wòado glass ƒe tɔtrɔ ƒe dzoxɔxɔ (Tg) ɖe dzi va ɖo 230°C. Le gaƒoƒo 48 ƒe zazã atraɖii le dzoxɔxɔ 260°C megbe la, adhesion retention rate gakpɔtɔ wu 85%.

·  To crosslinking network : Tu nano-scale crosslinking networks be woado ŋusẽ cohesive ŋusẽ kple shear tsitretsitsi le adhesive layer le dzoxɔxɔ gã me.

·  Tsɔ dzoxɔxɔdzidzenuwo kpee : De phenol si woxe mɔ na kple dzoxɔxɔnu bubuwo ɖe mɔli la me be wòaxe mɔ ɖe oxidative ƒe gbegblẽ nu nyuie le dzoxɔxɔ gã me.

2. Substrate Layer: Do dzoxɔxɔ ƒe tsitretsitsi ƒe seɖoƒe bliboa ɖe dzi

·  Nano-filler tɔtrɔ : Tsɔ nano silica, boron nitride nanotubes kple nanoparticles bubuwo de PTFE substrate me be woawɔ ŋutilã me crosslinking teƒewo. Woateŋu adzi dzoxɔxɔ ƒe tɔtɔ ƒe dzoxɔxɔ ɖe edzi 20–30°C, esime woalé 90% kple edzivɔ le gɔmedzedzea me le 260°C me.

·  Molecular crosslinking treatment : Crosslink PTFE molecule kɔsɔkɔsɔwo be woakɔ subɔsubɔ ƒe dzoxɔxɔ si yia edzi va ɖo 300°C.

·  Fiber reinforcement : Tsɔ 25% glass fiber alo carbon fiber kpe ɖe eŋu be wòado ŋusẽ creep tsitretsitsi 300%, si ana woate ŋu azãe ɖaa vaseɖe 280°C.

3. Interface & Structural Design: Do kadodo ƒe liƒo ɖe ŋgɔ

·  Substrate surface treatment : De plasma treatment alo chemical etching ɖe PTFE ƒe anyigba dzi be wòana roughness kple surface activity nadzi ɖe edzi, ado ŋusẽ interfacial adhesion eye nàƒo asa na delamination le dzoxɔxɔ gã me.

·  Add intermediate barrier layer : De polyimide (PI) isolation layer PTFE substrate kple adhesive dome be woaxe mɔ na adhesive ƒe gege ɖe eme kple ʋuʋu le dzoxɔxɔ gã me, si ana xɔtuɖoɖo bliboa nali ke.

·  Optimize composite structure : Adopt multi-layer composite structure: PTFE coating + reinforcing substrate + high-temperature stable layer , be woada asɔ dzoxɔxɔ ƒe tsitretsitsi kple adhesive dɔwɔwɔ bliboe.

·  Reserve thermal expansion clearance : PTFE ƒe kekeɖenudɔwɔwɔ ƒe xexlẽdzesi si le fli me la anɔ abe gakpo tɔ ƒe teƒe 10 ene.

Dzra dometsotso si nye 0.15–0.3 mm ɖo  le xɔtuɖaŋu me be nàɖe dzoxɔxɔ ƒe nuteɖeamedzi ɖa nyuie.

Mɔ̃ɖaŋunyatakaka siwo le etame la tso Jiangsu Aokai Nu Yeyewo Mɔ̃ɖaŋununya Co., Ltd.

Ne èhiã nyatakaka bubuwo tso mɔ̃ɖaŋununya ƒe nɔnɔmewo, dɔwɔwɔ ƒe nɔnɔmewo kple egbɔkpɔnu siwo wowɔ ɖe ɖoɖo nu na míaƒe adzɔnuwo ƒe hatsotso bliboa — siwo dometɔ aɖewoe nye PTFE dzoxɔxɔ gã avɔ, PTFE dzoxɔxɔ gã tape, PTFE dzoxɔxɔ gã mesh alidziblanu, seamless fusing mɔ̃ alidziblanu, axa ɖeka PTFE avɔ, dzoxɔxɔ gã tsitretsitsi conveyor belt kple dzoxɔxɔ gã tsitretsitsi fiberglass avɔ — taflatse ƒo ka na mí faa:

·  Kaƒoƒo: Aƒetɔ Guo +86 18944819998

·  Kaƒoƒo: Aƒetɔ Liu +86 13705266308

Míeléa asitsatsa ŋuti xexemenunya si nye dɔwɔwɔ nyuie kple fɔmaɖimaɖi me ɖe asi ɣesiaɣi, eye míedzea agbagba be míana dɔwɔƒewo ƒe kuxiwo gbɔ kpɔnu siwo woate ŋu akpɔ le teƒe ɖeka kple nudzadzra megbe subɔsubɔdɔ si ŋu wobu nyuie la wò.