PTFE surface treatment for bonding adhesion ekozesa enkola bbiri enkulu: okusaanuuka okw’ebbugumu eringi (okugumira embeera y’obudde okusingako, amaanyi ga 9.5 MPa n’ekirungo ekigatta, naye kifulumya ggaasi ez’obutwa) ne sodium-naphthalene etching (5 MPa okunywerera amangu, eddirisa erifunda erya ssaawa 24-48, kasasiro ow’obulabe). Londa okusinziira ku kufuga obutonde bw’ensi n’okukola emirimu egy’ekiseera ekiwanvu vs. egy’ekiseera ekitono.

Okwoza n’okuddaabiriza obulungi kwongera ku bulamu bw’olugoye lwa PTFE olw’ebbugumu eringi. Okwoza ng’omaze okukozesa n’oluvannyuma lw’okunyogoza. Kozesa bbulawuzi ennyogovu, eby’okunaaba ebitaliimu oba omwenge ku mabala. Tokozesangako asidi/alkali ez’amaanyi, bleach, oba ebyuma ebisenya. Okusiiga amafuta ga silikoni buli kiseera kikendeeza ku kwambala. Goberera ebiragiro bino okutangira ebizigo okwonooneka.

PTFE high-temperature tape erina obuziyiza obubi eri ionizing radiation. Ku 1 kGy yokka gamma exposure, amaanyi g’okusika gakendeera okutuuka ku ~25% ku original. Kisaanira mu mbeera za ddoozi entono zokka (okuzaala emmere/obujjanjabi <10 kGy). Ku makolero ga nukiriya oba emmeeri z’omu bwengula, kozesa polyimide oba PEEK mu kifo ky’ekyo.

Okugezesa omutindo gwa PTFE emulsion kizingiramu ebiraga ebikulu mukaaga: ebikalu (60±2% buli T/FSI 067-2021), pH (9.0-11.0), okusaasaana kw’obunene bw’obutundutundu (laser diffraction/DLS), viscosity (12-30 mPa·s ku 25°C), okutebenkera (centrifugal, thermal, freeze-thaw), n’endabika. Ekitabo kino kikwata ku nkola z’okugezesa eza mutindo ku buli paramita.

Ku butambi bwa PTFE obw’ebbugumu eringi wansi w’okunnyika okumala ebbanga eddene, PTFE substrate esigala nga tekola kemiko, naye oluwuzi olusiiga lwe lunafu. Amazzi ganafuya silikoni PSA; amazzi g’omunnyo gayanguyira okukulukuta. Ku ddagala erikambwe, ebisiiga bya fluorosilicone oba perfluoropolyether – oba PTFE tape etaliimu adhesive – byetaagibwa. Okufiirwa amaanyi g’ebikuta okutuuka ku bitundu 40% oluvannyuma lw’essaawa 48 mu mazzi.

PTFE obutambi obw’ebbugumu eringi ekozesebwa mu kukwatagana n’emmere erina okusigala mu kkomo ly’ebbugumu eritegeerekese: ≤260°C okukozesebwa obutasalako, ≤300°C ku ntikko ennyimpi (eddakiika), era tesukka 327°C (okuvunda). Ebiragiro bya FDA ne EU tebirambika kiseera kya bonna – ebbanga ly’okukwatagana mu ngeri ey’obukuumi lisinziira ku bbugumu era lirina okukakasibwa okugezesebwa kw’okusenguka okukoppa embeera entuufu.

Olugoye lwa PTFE olw’ebbugumu eringi n’olugoye lwa silicone byombi bikozesa olugoye lwa fiberglass nga base naye nga byawukana mu bintu ebisiiga (PTFE resin vs silicone rubber). PTFE esinga mu butakwata, okugumira okwambala, n’okugumira eddagala okutuuka ku 260°C. Olugoye lwa silicone luwa okukyukakyuka okw’ekika ekya waggulu, okuziyiza amasannyalaze, n’okuziyiza omuliro (okutuuka ku 230°C). Londa okusinziira ku ky’olina okukulembeza.

PTFE olugoye olw’ebbugumu eringi (PTFE membrane material) lwe lusinga okulondebwa mu nzimba y’okusika. Ebirungi ebikulu: obulamu obw’ebweru obw’emyaka 30+, okweyonja kungulu (amazzi g’enkuba ganaaza obucaafu), okutambuza ekitangaala ekigonvu (6-13%), ekipimo ky’omuliro ekya Class A, n’amaanyi agalinga ag’ekyuma wansi wa kkiro 1.5/m2. Ekozesebwa mu bisaawe, ebisaawe by’ennyonyi, n’ebizimbe ebimanyiddwa ennyo mu nsi yonna.

PTFE tape ya bbugumu eringi yeetaaga okutereka obulungi okusobola okukuuma okunywerera kwayo, okukyukakyuka, n’omulimu gw’okufulumya. Ebikulu ebyetaagisa mulimu okufuga ebbugumu (10-30°C), obunnyogovu wansi wa 60%, okwewala ekitangaala, okwawula eddagala, okuteeka mu nneekulungirivu, n’okuyingiza empewo. Goberera enzirukanya y’ebintu bya FIFO era okebere buli kiseera.

Okulonda olutambi olutuufu olwa PTFE olw’ebbugumu eringi ku kitanda ekibuguma ekya 3D printer kyetaagisa okussa essira ku bipimo bina ebikulu: okuziyiza ebbugumu (okutuuka ku 260°C+), substrate enyweza fiberglass (0.18mm ideal), silicone adhesive backing with non-stick top surface, n’obugazi/okugumiikiriza obutuufu. Ekitabo kino kikuyamba okwewala okuwuguka, okusigala, n’okulemererwa okukuba ebitabo.