Phekolo ea holim'a PTFE bakeng sa ho khomarela bonding e sebelisa mekhoa e 'meli e meholo: ho qhibiliha ha mocheso o phahameng (ho hanyetsa boemo ba leholimo bo phahameng, matla a 9.5 MPa a nang le coupling agent, empa e ntša likhase tse chefo) le sodium-naphthalene etching (5 MPa hang-hang adhesion, e moqotetsane 24-48 hora fensetere, litšila tse kotsi). Khetha ho latela taolo ea tikoloho le ts'ebetso ea nako e telele khahlano le nako e khuts'oane.

Ho hloekisa le tlhokomelo e nepahetseng ho lelefatsa bophelo ba lesela la mocheso o phahameng oa PTFE. Hloekisa ka mor'a ho sebelisoa le ka mor'a ho pholile. Sebelisa borashe bo bonolo, li-detergents tse sa jeleng paate, kapa joala bakeng sa litšila. Le ka mohla u se ke ua sebelisa li-acid tse matla/alkalis, bleach, kapa metal scrapers. Ho tlotsa oli ea silicone khafetsa ho fokotsa ho roala. Latela litataiso tsena ho thibela tšenyo ea lira.

Theipi ea mocheso o phahameng oa PTFE e na le khanyetso e fokolang ea mahlaseli a ionizing. Ha motho a pepesehetse gamma ka 1 kGy feela, matla a ho tiea a theohela ho ~ 25% ea a mantlha. E loketse feela bakeng sa tikoloho ea tekanyo e tlaase (lijo / sterilization ea bongaka <10 kGy). Bakeng sa indasteri ea nyutlelie kapa sepakapaka, sebelisa polyimide kapa PEEK sebakeng sa eona.

Testing PTFE emulsion boleng akarelletsa tse tšeletseng lintlha tse ka sehloohong: dikahare tiileng (60±2% ka T/FSI 067-2021), pH (9.0-11.0), phatsa boholo kabo (laser diffraction/DLS), viscosity (12-30 mPa·s ka 25°C), botsitso (centrifugal, freeze-thaw, ponahalo ea thaw. Tataiso ena e akaretsa mekhoa e tloaelehileng ea tlhahlobo bakeng sa paramethara ka 'ngoe.

Bakeng sa litheipi tse phahameng tsa mocheso oa PTFE tlas'a ho qoelisoa ka nako e telele, PTFE substrate e lula e sa sebetse ka lik'hemik'hale, empa lera la sekhomaretsi ke ntlha e fokolang. Metsi a fokolisa silicone PSA; metsi a letsoai a potlakisa ho bola. Bakeng sa lik'hemik'hale tse mabifi, li-adhesives tsa fluorosilicone kapa perfluoropolyether - kapa tepi ea PTFE e se nang sekhomaretsi - lia hlokahala. Ho lahleheloa ke matla ho fihla ho 40% ka mor'a lihora tse 48 ka metsing.

Theipi ea mocheso o phahameng oa PTFE e sebelisoang lits'ebetsong tsa ho kopana le lijo e tlameha ho lula ka har'a meeli ea mocheso e hlalositsoeng: ≤260 ° C bakeng sa tšebeliso e tsoelang pele, ≤300 ° C bakeng sa litlhōrō tse khutšoanyane (metsotso), 'me ha ho mohla e ka holimo ho 327 ° C (ho bola). Melao ea FDA le EU ha e hlalose moeli oa nako o akaretsang - nako e sireletsehileng ea ho ikopanya e itšetlehile ka mocheso 'me e tlameha ho netefatsoa ka liteko tsa ho falla tse etsisang maemo a sebele.

PTFE lesela la mocheso o phahameng oa mocheso le lesela la silicone ka bobeli li sebelisa lesela la fiberglass e le motheo empa li fapane ka thepa ea ho roala (PTFE resin vs silicone rabara). PTFE e ipabola tabeng ya ho se thure, ho se mamelle, le ho hanyetsa dikhemikhale ho fihla ho 260°C. Lesela la silicone le fana ka maemo a holimo, ho kenya motlakase, le ho hanyetsa mollo (ho fihlela ho 230 ° C). Khetha ho latela lintho tse tlang pele bophelong ba hau.

PTFE lesela la mocheso o phahameng oa mocheso (PTFE membrane material) ke khetho ea pele bakeng sa meralo e tsitsitseng. Melemo ea bohlokoa: lilemo tse 30+ tsa bophelo ba kantle, sebaka sa ho itlhoekisa (metsi a pula a hlatsoa litšila), phetiso ea mabone a bonolo (6-13%), boemo ba mollo oa Sehlopha sa A, le matla a kang tšepe a ka tlase ho 1.5 kg/m². E sebelisoa mabaleng a lipapali, boema-fofane le meaho e ikhethang lefatšeng ka bophara.

Theipi ea mocheso o phahameng oa PTFE e hloka polokelo e nepahetseng ho boloka ho khomarela, ho tenyetseha, le ho lokolloa ha eona. Litlhoko tsa bohlokoa li kenyelletsa taolo ea mocheso (10-30 ° C), mongobo o ka tlase ho 60%, ho qoba khanya, ho itšehla thajana ka lik'hemik'hale, ho beoa ka kotloloho le moea. Latela tsamaiso ea thepa ea FIFO 'me u hlahlobe khafetsa.

Ho khetha tepi e nepahetseng ea mocheso o phahameng oa PTFE bakeng sa bethe e chesang ea khatiso ea 3D ho hloka ho lebisa tlhokomelo ho matšoao a mane a bohlokoa: ho hanyetsa mocheso (ho fihlela ho 260 ° C +), substrate e matlafalitsoeng ka fiberglass (0.18mm e loketseng), sekhomaretsi sa silicone se nang le sekhomaretsi se se nang thupa, le bophara bo nepahetseng / mamello. Tataiso ena e u thusa ho qoba ho khopama, ho sesa le ho hloleha ho hatisa.