ʻO ka lipine wela kiʻekiʻe o ka PTFE i hoʻopili ʻia i nā pahi hoʻopaʻa wela a me nā paʻi sila e hāʻawi i ʻehā mau kumu waiwai: pale i ka hoʻoheheʻe ʻana i ka plastic adhesion (hoʻopau i ka downtime), pale i ka make sealing pipiʻi, homogenizes wela / kaomi no nā sila mau, a hoʻemi i ka friction film. Paipai ʻia ka lipine kākoʻo fiberglass (0.13-0.25 mm) me PSA silicone (≥260°C). Lipine ʻeleʻele anti-static no nā laina kiʻekiʻe.

Hoʻoholo nui ʻia ka waiwai o ka wai mahu o PTFE adhesive tape e ka uhi ʻana i nā hemahema (micropores, microcracks, fiber wicking) ma mua o ka PTFE intrinsic hydrophobicity. Hāʻawi ke kiʻi ʻoniʻoni PTFE maʻemaʻe WVTR wale nō. ʻO ka uhi ʻana i nā ʻāpana he nui a me nā mea hoʻopihapiha lamellar (mica, glass flakes) e hana i kahi hopena labyrinth, e hōʻemi nui ana i ka lawe ʻana i ka mahu. No ka hoʻopaʻa ʻana i ka haʻahaʻa haʻahaʻa, e hōʻike i nā uhi i hoʻopaʻa ʻia.

Hoʻoholo ʻia ke kūpaʻa ʻana o ka PTFE kiʻekiʻe-mehana adhesive lipine ma lalo o ka ukana mau loa (ʻoi aku ma 200-260 ° C) 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 e kūʻē i ke anuanu; 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. Nā pae koho kiʻi: Taber abrasion poho (<15 mg/1000 cycles), hoʻopiha ʻia i hoʻololi ʻia ka uhi PTFE (carbon/graphite/MoS₂), ʻikepili palena PV, ikaika substrate (≥200 N/cm), a me ka ʻili o ka ʻili (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 kū i nā kaiapuni moana (500-1000h hoʻāʻo paʻakai,> 80% paʻa ʻili); hāʻule ka PSA acrylic. ʻO ka hoʻomaʻamaʻa ʻana i ka ʻili kūpono, ka hoʻohana ʻana i ka bubble-free, a me ka hoʻopaʻa ʻana i ka lihi me ka silikon 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 ka lapalapa ahi), FDA (hoʻopili 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 o ka PTFE ma waena o ʻekolu mau lāʻau noiʻi lapaʻau: ka pale ʻana i nā mea hana sterilization (autoclave trays, heat-seal packaging), mea hoʻomaʻamaʻa 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 e noho i loko o nā palena wela o ka PTFE i hoʻohana ʻia i nā noi pili meaʻai: ≤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 migration e hoʻohālikelike ana i nā kūlana maoli.