Ụkpụrụ ịkpa ákwà fiberglass - larịị, twill, ma ọ bụ satin - na-emetụta PTFE akwa akwa na-ekpo ọkụ nke ukwuu. Satin weave na-enye ike anya mmiri kachasị elu (2-3x larịị) na mgbanwe, dị mma maka ịgbagọ ike. Akpara larịị na-enye nkwụsi ike akụkụ kachasị mma yana nrapado bee, dabara maka ngwa kwụ ọtọ. Twill na-edozi akụrụngwa niile maka ojiji izugbe.

Teepu fiberglass PTFE chọrọ asambodo nchekwa isi atọ: UL (nchekwa ọkụ na ọkụ), FDA (nleba anya kọntaktị nri), yana ISO 9001: 2015 (njikwa mma). Ihe teepu enwetara ikike na-enye arụmọrụ na-agbanwe agbanwe, ndụ ọrụ ogologo, yana ọnụ ahịa mkpokọta dị ala n'agbanyeghị ọnụ ahịa dị elu. Jiri otu ndị na-enye akwụkwọ nyochaa asambodo mgbe niile.

PTFE conveyor belt (Teflon belts) melite nri nhazi ahịrị site na anọ isi uru: elu na-abụghị osisi arụmọrụ (na-ebelata n'efu na ịrapara), obosara okpomọkụ ndidi (-100 ° C ka 260 Celsius C na-enyere baking ka kefriza), mfe ihicha na nje na-eguzogide (na-abụghị porous elu, FDA kwadoro), na arụmọrụ ego (obere ike ojiji, ogologo ndụ). Kwesịrị ekwesị maka ngwaahịa esiri esi, nri kpọnwụrụ akpọnwụ, chọkọleti, na ngwaahịa ndị nnyapade.

A na-eji teepu okpomọkụ dị elu PTFE gafee ọkwa ngwa ahụike atọ: nchebe akụrụngwa mgbochi (trays autoclave, nkwakọ ihe mkpuchi okpomọkụ), ọgwụgwọ elu akụrụngwa (mkpuchi mkpuchi dị ala, mkpuchi ọkụ), na ngwaọrụ ndị a na-akụnye (vaskụla grafts, sutures). A kwadoro biocompatibility site na ISO 10993, yana FDA 21 CFR 177.1550 na-ewepụta nchekwa ihe ndabere.

Mkpuchi uniformity nke PTFE elu-okpomọkụ ákwà kpebisiri ike site anọ ihe: mkpuchi usoro (otuba uru size 0.15-0.35 μm, viscosity, siri ike ọdịnaya), mkpuchi & sintering usoro (agụba mkpuchi mmasị maka uniformity), mkpụrụ àgwà (akpa ụkpụrụ, tupu ọgwụgwọ), na mmepụta gburugburu ebe obibi (20-25 ° C, <60% RH). Dip + agụba jikọtara usoro na-edozi ntinye na ire ụtọ elu.

PTFE elu ọgwụgwọ maka bonding adhesion eji abụọ isi ụzọ: elu-okpomọkụ agbaze (elu ihu igwe eguzogide, 9.5 MPa ike na njikọ njikọ, ma tọhapụrụ toxic gas) na sodium-naphthalene etching (5 MPa ozugbo adhesion, warara 24-48 hour window, ize ndụ n'efu). Họrọ dabere na njikwa gburugburu ebe obibi na ogologo oge vs. arụmọrụ obere oge.

Nhicha na mmezi nke ọma na-agbatị ndụ PTFE akwa okpomọkụ dị elu. Dị ọcha mgbe ejiri ya na mgbe ọ dị jụụ. Jiri brush dị nro, ihe na-anọpụ iche, ma ọ bụ mmanya maka ntụpọ. Ejila acid/alkalis siri ike, ịcha ọcha, ma ọ bụ nchara ígwè. Mmanya mmanụ silicone mgbe niile na-ebelata iyi. Soro ntuziaka ndị a iji gbochie mmebi mkpuchi.

PTFE elu-okpomọkụ teepu nwere adịghị mma iguzogide ionizing radieshon. Na naanị 1 kGy ikpughe gamma, ike ike na-adaba na ~ 25% nke mbụ. Ọ dabara naanị maka gburugburu obere doses (nri / ọgwụ igba ogwu <10 kGy). Maka ụlọ ọrụ nuklia ma ọ bụ ụgbọ elu, jiri polyimide ma ọ bụ PEEK kama.

Nnwale PTFE emulsion àgwà gụnyere ihe ngosi isi isii: ọdịnaya siri ike (60 ± 2% kwa T / FSI 067-2021), pH (9.0-11.0), nkesa nha nha (laser diffraction / DLS), viscosity (12-30 mPa·s na 25 ° C), nkwụsi ike (centrifugal, thermal). Ntuziaka a na-ekpuchi usoro ule ọkọlọtọ maka oke ọ bụla.

N'ihi na PTFE elu-okpomọkụ teepu n'okpuru ogologo oge imikpu, na PTFE mkpụrụ na-anọgide kemịkal inert, ma nrapado oyi akwa bụ adịghị ike ebe. Mmiri na-ebelata PSA silicone; mmiri nnu na-eme ka corrosion dịkwuo elu. Maka kemịkalụ ike ike, fluorosilicone ma ọ bụ perfluoropolyether adhesives - ma ọ bụ teepu PTFE na-enweghị nrapado - achọrọ. Ike bepụ ruo 40% mgbe awa 48 gachara n'ime mmiri.