PTFE elu-okpomọkụ teepu etinye aka okpomọkụ-akara mma na akara ibe na-anapụta anọ isi ụkpụrụ: egbochi mgbaze plastic adhesion (na-ewepụ downtime), na-echebe ọnụ akara ọnwụ, homogenizes okpomọkụ / nrụgide maka na-agbanwe agbanwe akara, na-ebelata film esemokwu. A na-atụ aro teepu nkwado fiberglass (0.13-0.25 mm) nwere PSA silicone (≥260°C). teepu ojii mgbochi static maka ahịrị ọsọ dị elu.

A na-ekpebi ihe mgbochi mmiri vapor mgbochi nke teepu nrapado PTFE bụ isi site na ntụpọ mkpuchi (micropores, microcracks, fiber wicking) karịa PTFE's intrinsic hydrophobicity. Ihe nkiri PTFE dị ọcha na-enye naanị WVTR ọkara. Multi-layer mkpuchi na lamellar fillers (mica, glass flakes) na-emepụta mmetụta labyrinth, na-ebelata nke ukwuu nnyefe vepo. Maka mkpuchi dị elu iru mmiri, kọwaa mkpuchi densified.

Nguzogide nke PTFE elu-okpomọkụ ntanye teepu n'okpuru ogologo oge na-adịgide adịgide ibu (karịsịa na 200-260 ° C) kpebisiri ike site na ihe abụọ: silicone PSA crosslink density (higher crosslinking egbochi eruba) na mkpụrụ ụdị (fiberglass-ike PTFE eguzogide oyi creep; dị ọcha PTFE film cree). Ihe nrapado enweghị njikọ na-ada ngwa ngwa na oke okpomọkụ. Ngwunye nrapado kariri na-abawanye ihe egwu na-akpụ akpụ.

Maka teepu okpomọkụ dị elu nke PTFE ejiri na ngwa esemokwu sliding abrasive, ọkọlọtọ enweghị osisi na nguzogide okpomọkụ ezughi oke. Isi nhọrọ nhọrọ: mfu abrasion Taber (<15 mg / 1000 cycles), jupụtara PTFE mkpuchi (carbon/graphite/MoS₂), PV njedebe data, ike mkpụrụ (≥200 N / cm), na mating elu roughness (Ra 0.2-0.4 μm). Nchekwa ọnụ nke ọma na njikọ zuru oke dị oke mkpa maka ogologo ndụ.

Ngwa PTFE bụ ihe na-eme ka nnu na-eguzogide ọgwụ (mmiri mmiri <0.01%). Otú ọ dị, n'ozuzu teepu arụmọrụ na-adabere na nrapado ụdị: silicone PSA na-eguzogide mmiri gburugburu (500-1000h nnu ịgba ule,>80% bee njide); acrylic PSA ada ada. Ngwọta elu dị mma, ngwa na-enweghị afụ, na iji silicone sealant mechie ihu dị oke mkpa maka ntụkwasị obi ogologo oge na nyiwe na ụgbọ mmiri dị n'ụsọ mmiri.

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.

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.

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.

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.

Teepu okpomọkụ dị elu nke PTFE eji na ngwa kọntaktị nri ga-anọrịrị n'ime oke okpomọkụ akọwapụtara: ≤260°C maka ojiji na-aga n'ihu, ≤300°C maka ugwu dị mkpirikpi (nkeji), na ọ dịghị mgbe ọ ga-adị n'elu 327°C (mmebi). Iwu FDA na EU anaghị akọwapụta oke oge zuru ụwa ọnụ - ogologo oge kọntaktị na-adabere na ọnọdụ okpomọkụ na a ga-enyocharịrị ya site na ule mbugharị na-egosipụta ọnọdụ n'ezie.