ʻO ke kūpaʻa ʻana o ka PTFE kiʻekiʻe-mehana adhesive lipine ma lalo o ka ukana mau loa (ʻoi aku ma 200-260 ° C) ua hoʻoholo ʻia e nā kumu ʻelua: silicone PSA crosslink density (ʻoi aku ka crosslinking kiʻekiʻe e pale i ke kahe) a me ke ʻano substrate (fiberglass-reinforced PTFE kū'ē i ke kolo anu; Holo wikiwiki ka lāʻau hoʻopili ʻole i ka wela nui. ʻO nā papa pipili mānoanoa e hoʻonui i ka pilikia kolo.

No ka PTFE kiʻekiʻe-mehana lipine i hoʻohana ʻia i nā noi abrasive sliding friction, ʻaʻole lawa ka maʻamau non-stick a me ka pale wela. Kiʻi koho koho: Taber abrasion poho (<15 mg/1000 cycles), hoʻopiha i hoʻololi ʻia i ka PTFE uhi (carbon/graphite/MoS₂), PV palena ʻikepili, substrate ikaika (≥200 N/cm), a male ʻili roughness (Ra 0.2-0.4 μm). ʻO ka pale lihi kūpono a me ka hoʻopaʻa piha ʻana he mea koʻikoʻi no ka lōʻihi.

ʻO ka pāpaʻi PTFE he paʻakai paʻakai kūʻokoʻa (ka wai absorption <0.01%). Eia nō naʻe, pili ka hana lipine holoʻokoʻa i ke ʻano adhesive: silicone PSA kūʻē i nā kaiapuni kai (500-1000h hoʻāʻo paʻakai,> 80% paʻa ʻili); hāʻule ka PSA acrylic. ʻO ka hoʻomaʻamaʻa ʻana i ka ʻili kūpono, ka hoʻohana ʻole ʻana i ka pulupulu, a me ka sila ʻana me ka silikoni sealant he mea koʻikoʻi no ka hilinaʻi lōʻihi ma nā paepae a me nā moku.

Pono ʻo PTFE fiberglass tape i ʻekolu mau palapala hōʻoia palekana: UL (palekana uila a me ke ahi), FDA (hoʻokō pili meaʻai), a me ISO 9001:2015 (hoʻokele maikaʻi). Hāʻawi nā lipine i hōʻoia ʻia i ka hana maʻamau, ke ola ʻoi aku ka lōʻihi o ka lawelawe ʻana, a me ka haʻahaʻa haʻahaʻa o ke kumu kūʻai ʻoiai ke kumu kūʻai kiʻekiʻe. E hōʻoia mau i nā palapala hōʻoia me nā hui hoʻopuka.

Hoʻohana ʻia ka lipine wela kiʻekiʻe PTFE ma waena o ʻekolu mau lāʻau noiʻi lapaʻau: ka pale ʻana i nā mea hana sterilization (autoclave trays, heat-seal packaging), mea hoʻomaʻamaʻa i ka ʻili (ka uhi haʻahaʻa haʻahaʻa, insulation uila), a me nā mea implantable (vascular grafts, sutures). Ua hōʻoia ʻia ka biocompatibility ma o ISO 10993, a ua hoʻokumu ʻo FDA 21 CFR 177.1550 i ka palekana kumu.

PTFE kiʻekiʻe-mehana lipine i ilihune kū'ē i ka ionizing radiation. Ma ka 1 kGy gamma wale nō, hāʻule ka ikaika tensile i ~25% o ke kumu. He kūpono wale ia no nā wahi haʻahaʻa haʻahaʻa (meaʻai/lāʻau sterilization <10 kGy). No ka ʻoihana nuklea a i ʻole ka mokulele, e hoʻohana i ka polyimide a i ʻole PEEK ma kahi.

No ka PTFE kiʻekiʻe-mehana lipine ma lalo o ka lōʻihi-manawa immersion, ka PTFE substrate noho chemically inert, akā, o ka adhesive papa ka wahi nāwaliwali. Hoʻonāwaliwali ka wai i ka PSA silicone; ʻO ka wai paʻakai ka hoʻokē ʻino. No nā kinikona koʻikoʻi, koi ʻia nā fluorosilicone a i ʻole perfluoropolyether adhesives – a i ʻole ka lipine PTFE adhesive-free. ʻO ka pau ʻana o ka ikaika Peel a hiki i 40% ma hope o 48 mau hola i ka wai.

Pono ka lipine wela o ka PTFE i hoʻohana ʻia i nā noi pili meaʻai i loko o nā palena wela i wehewehe ʻia: ≤260°C no ka hoʻohana mau ʻana, ≤300°C no nā piko pōkole (mau minuke), ʻaʻole ma luna o 327°C (decomposition). ʻAʻole ʻōlelo nā kānāwai FDA a me EU i ka palena manawa āpau - pili ka lōʻihi o ka launa pū ʻana i ka mahana a pono e hōʻoia ʻia e nā hoʻokolohua neʻe e hoʻohālikelike ana i nā kūlana maoli.

ʻO ke koho ʻana i ka lipine wela kiʻekiʻe PTFE kūpono no kahi moena wela 3D paʻi e pono ai ka nānā ʻana i ʻehā mau hōʻailona nui: ke kūpaʻa wela (a hiki i 260°C+), ka substrate i hoʻoikaika ʻia i ka fiberglass (0.18mm maikaʻi), ke kākoʻo silicone me ka ʻili o luna ʻole, a me ka laulā kūpono. Kōkua kēia alakaʻi iā ʻoe e pale aku i ka pale ʻana, ke koena, a me ka paʻi ʻana.

ʻO ka mahana hoʻololi aniani (Tg) o ka mea hoʻopili koʻikoʻi koʻikoʻi silicone ma kahi o -120°C - ʻoi aku ka haʻahaʻa ma mua o nā adhesive acrylic. Mālama kēia Tg ultra-haʻahaʻa i ka PTFE kiʻekiʻe-mehana lipine maʻalahi a paʻa a hiki i -70 ° C, e pale ana i ka haki ʻana a hiki ke hoʻopili pono i nā noi cryogenic.