2026-07-15
Xihloko lexi xi hlamusela xivumbeko xa ku cinca eka matimba yo hlangana ya PTFE high-temperature tape adhesive layer endzhaku ka ku dyuhala ka mahiselo yale henhla. Xivumbeko xa switeji swinharhu: Xiteji xo tlakuka xa le ndzhaku ka ku horisiwa (ku sungula ku hlangana na mahiselo yale henhla eka 200-260°C, mintlawa ya masalela ya reactive yi ya emahlweni yi crosslinking, ku hlangana ku tlakuka swinene); Xiteji xa equilibrium lexi tiyeke (crosslinking yi tshinelela ku hetisisiwa, ku hlangana ku tshama ku tshamisekile eka nkarhi wo leha); Xiteji xaku onhaka naku hunguteka (nkarhi/mahiselo yotala swivanga ku onhaka ka main chain, cohesion yahunguteka, adhesive ya olova naswona yiva tacky). Swivangelo swa timintsu swa cohesive failure (ku handzuka ka le ndzeni ku siya masalela) na squeeze-out (cold flow kusuka emakumu hikokwalaho ka kuhunguteka ka modulus) swa xopaxopiwa.
Hlaya Swin'wana
2026-07-08
Xihloko lexi xi pimanisa ku vupfa ka mahiselo ya kamara na mahiselo ya le henhla ya xinamarheti lexi twaka ntshikelelo wa silicone xa thepi ya PTFE. Ku vupfa ka mahiselo yale henhla (120-180°C) swiendla ti dense crosslinked networks letingana matimba yo tiya ya cohesive, leswi sivelaka masalela ya adhesive endzhaku ko rhurhumela. Yi endla ti chemical anchoring bonds na PTFE substrates hiku tirhisa primer co-curing, leswi herisaka makhombo ya delamination. Ku vupfa ka mahiselo yale henhla switlhela swisusa ti low-molecular volatiles loko kungase rhumeriwa, leswi sivelaka ku bubbling xikan’we naku thyakisa oil ya silicone hinkarhi waku hisiwa kosungula.
Hlaya Swin'wana