Fiberglass weave pattern - plain, twill, kapa satin - e ama haholo PTFE thepa ea lesela la mocheso o phahameng oa mocheso. Satin weave e fana ka matla a phahameng a ho tabola (2-3x thota) le ho tenyetseha, e loketseng ho kobeha ho matla. Plain weave e fana ka botsitso bo botle ka ho fetesisa le ho khomarela lekhapetla, e loketseng lits'ebetso tse tsitsitseng. Twill e leka-lekanya thepa eohle bakeng sa tšebeliso e akaretsang.

Theipi ea fiberglass ea PTFE e hloka litifikeiti tse tharo tsa bohlokoa tsa polokeho: UL (polokeho ea motlakase le lelakabe), FDA (ho latela melao ea lijo), le ISO 9001:2015 (taolo ea boleng). Litheipi tse netefalitsoeng li fana ka ts'ebetso e ts'oanang, bophelo bo bolelele ba ts'ebeletso, le litšenyehelo tse tlase tsa beng ho sa tsotelehe litšenyehelo tse holimo tsa pele. Kamehla netefatsa litifikeiti ka kotloloho le mekhatlo e fanang ka thepa.

PTFE mabanta conveyor (Teflon mabanta) ntlafatsa mekhoa ea ho lokisa lijo ka melemo e mene ea bohlokoa: tshebetso e phahameng e sa thupeng (e fokotsa litšila le ho khomarela), mamello e pharaletseng ea mocheso (-100 ° C ho 260 ° C e nolofalletsa ho baka ho bata), ho hloekisa habonolo le ho hanyetsa likokoana-hloko (e se nang porous holim'a metsi, FDA e lumellanang le matla a nako e telele), le tšebeliso ea nako e telele ea matla a ho sebetsa. E loketse lintho tse halikiloeng, lijo tse hatselitsoeng, chokolete le lihlahisoa tse khomarelang.

Theipi ea mocheso o phahameng oa PTFE e sebelisoa likarolong tse tharo tsa ts'ebeliso ea bongaka: ts'ireletso ea thepa ea ho thibela likokoana-hloko (literei tsa autoclave, pakete ea mocheso), phekolo ea holim'a lisebelisoa (sekontiri se tlaase, motlakase), le lisebelisoa tse kenngoeng (li-vascular grafts, sutures). Biocompatibility e netefatsoa ka ISO 10993, mme FDA 21 CFR 177.1550 e theha polokeho ea thepa ea motheo.

Coating ho ts'oana ha lesela la mocheso o phahameng oa PTFE ho khethoa ke lintlha tse 'nè: ho hlophisoa ha ho roala (tekanyo ea boholo ba 0.15-0.35 μm, viscosity, dikahare tse tiileng), ts'ebetso ea ho roala le ea sintering (seaparo sa lehare se khethiloeng bakeng sa ho lumellana), boleng ba substrate (mofuta oa weave, pele ho phekolo), le tikoloho ea tlhahiso (20-25% R <60%). Dip + blade e kopantseng ts'ebetso e leka-lekanya ho kenella le ho boreleli holimo.

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.

Teko ea PTFE boleng ba emulsion e kenyelletsa matšoao a tšeletseng a bohlokoa: dikahare tse tiileng (60±2% ka T / FSI 067-2021), pH (9.0-11.0), kabo ea boholo ba phatsa (laser diffraction/DLS), viscosity (12-30 mPa·s at 25°C), botsitso (centrifugal, freeze-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.