Nukatae PTFE Tape Ate Ŋu Alé Eƒe Léle Ðe Eme Dodokpɔ Manɔmee le Nɔnɔme Siwo Me Dzoxɔxɔ Sesẽ Le Me?

PTFE ƒe dzoxɔxɔ gã ƒe kasɛt si Jiangsu Aokai New Materials wɔ la zãa silicone-nulénu si te ŋu nɔa te ɖe nyaƒoɖeamenu nu, si ate ŋu awɔ dɔ sesĩe le dzoxɔxɔ 250°C me ɣeyiɣi didi aɖe. Susu veviawo le nya etɔ̃ siwo gbɔna me:

1. Kɔsɔkɔsɔ Vevi la nye Si–O Kadodowo kple Dzoxɔxɔ ƒe Gbegblẽ ƒe Dzoxɔxɔ Kɔkɔ

Molekyul kɔsɔkɔsɔ vevitɔ si le silicone nyaƒoɖeamenu-sensitive adhesive le PTFE dzoxɔxɔ gã tape me la ƒe wɔwɔme nye Si O Si O. Si–O kadodoa ƒe kadodoŋusẽ anɔ abe 445 kJ/mol, si lolo ŋutɔ wu C–C kadodo (anɔ abe 348 kJ/mol) alo C–H kadodo (anɔ abe 413 kJ/mol ene) le lãmenugbagbeviwo ƒe polymer siwo bɔ abe acrylates kple rababawo ene me.

Le dzoxɔxɔ gã me la, C–C kadodowo gbãna bɔbɔe eye woʋãa kɔsɔkɔsɔ ƒe gbegblẽ, gake Si–O kadodowo ya hiã ŋusẽ si lolo wu sã hafi woate ŋu agbã. Eyata silicone PSA ƒe molecule ƒe kɔsɔkɔsɔ vevitɔ nɔa anyi nenema le dzoxɔxɔ 250°C me, si ƒoa asa na adhesion ƒe bu si dzoxɔxɔ-oxidative ƒe gbegblẽ hena vɛ.

2. Chemical Cross-Linking Network xea mɔ na Fafa kple Sisi le Dzoxɔxɔ Kɔkɔwo me

Silicone rababa si wometsɔ ka ɖe wo nɔewo ŋu o la trɔna zua tsi si me wodea nu nu me le dzoxɔxɔ gã me eye ŋusẽ si le eŋu la buna keŋkeŋ. Gake wotsɔa silicone PSA si le PTFE ƒe dzoxɔxɔ gã ƒe kasɛt me la ƒoa ƒu to peroxide crosslinking alo platinum-catalyzed addition crosslinking dzi, si tsɔa molecule kɔsɔkɔsɔ siwo le fli me doa ka kple akpa etɔ̃ ƒe kadodo si li ke.

Nu sia si wotsɔ ka ɖe wo nɔewo ŋu la wɔnɛ be nusi léna ɖe nu ŋu la te ŋu léa nu sesẽ si nye elastic ƒe nɔnɔme me ɖe asi le dzoxɔxɔ 250°C me evɔ mefana alo sina abe dzoxɔxɔ ƒe aŋenuwo ene o. Togbɔ be eƒe modulus dzi ɖe kpɔtɔ vie hã la, egakpɔtɔ léa ŋusẽ si sɔ si me wòléa nu ɖo be wòate ŋu anɔ te ɖe eƒe ʋuʋu nu.

3. Glass ƒe Trɔtrɔ ƒe Dzoxɔxɔ si bɔbɔ (Tg ~ −120°C) .

Silicone PSA si le PTFE dzoxɔxɔ gã ƒe tape me la ƒe Tg bɔbɔ ŋutɔ (anɔ abe −120°C ene), si fia be eƒe molecule kɔsɔkɔsɔwo gakpɔtɔ le nɔnɔme si te ŋu trɔna ŋutɔ me le dzoxɔxɔ ƒe didime gbadzaa me tso −70°C va ɖo 300°C, ke menye glassy nɔnɔme si me gblẽ o.

Eyata le dzoxɔxɔ gã me la, nusi léna ɖe nu ŋu la mesesẽna be wòabu tsi ƒe ƒoƒo ƒe ŋutete o eye mefa o vaseɖe esime wòsina fũ akpa o. Eléa modulus si sɔ (nudzraɖoƒe ƒe modulus G' ≈ 104–106 Pa) me ɖe asi, si nye fesre nyuitɔ kekeake na nyaƒoɖeamenu-sensitive adhesion.

Silicone PSA ŋutɔ ƒe anyigba ƒe ŋusẽ le sue (anɔ abe 22 mN/m ene), si wɔnɛ be wòte ŋu dea tsi anyigba ƒe ŋusẽ sue si le anyigba dzi abe PTFE kple silicone rababa ene nyuie le dzoxɔxɔ gã gɔ̃ hã me — si xea mɔ na debonding si tsoa anyigba ƒe ŋusẽ ƒe sɔsɔ nyuie gbɔ.

Nyatakaka siwo le etame la tso Jiangsu Aokai New Materials Technology Co., Ltd. gbɔ.

Ne èdi parameters tsitotsito, dɔwɔwɔ ƒe nɔnɔmewo kple míaƒe adzɔnuwo ƒe hatsotso bliboa ƒe egbɔkpɔnu siwo wowɔ ɖe ɖoɖo nu — siwo dometɔ aɖewoe nye PTFE dzoxɔxɔ gã avɔ, PTFE dzoxɔxɔ gã tape, PTFE dzoxɔxɔ gã mesh alidziblanu, seamless alidziblanu na laminating mɔ̃wo, akpa ɖeka PTFE avɔ, dzoxɔxɔ gã tsitretsitsi conveyor belts kple dzoxɔxɔ gã fiberglass avɔ — taflatse te ɖe mía ŋu to:

·  Subɔsubɔdɔ ƒe Telefon:Aƒetɔ. Guo 18944819998 Aƒetɔ Liu 13705266308

Esi míelé subɔsubɔ xexemenunya si nye dɔwɔwɔ nyuie kple fɔmaɖimaɖi me ɖe asi ta la, míetsɔ mía ɖokui na be míana egbɔkpɔnu siwo le teƒe ɖeka kple subɔsubɔdɔ si me woalé ŋku ɖo la wò!