PTFE kiʻekiʻe-mehana lole mālama maikaʻi uila insulation mai -180 ° C a hiki i 260 ° C: volume resistivity>10¹³ Ω·cm ma 200 ° C, dielectric paʻa paʻa ma 2.0-2.1. Ma luna o 260 ° C, PTFE palupalu, decomposes ma luna o 327 ° C, nalowale insulation mau loa. Ma lalo o 0 ° C, hoʻomaikaʻi ka insulation akā lilo ka uhi i mea palupalu. Noho i loko o 260°C no ka hana pono.

ʻO ka lole wela kiʻekiʻe o ka PTFE (PTFE-coated fiberglass) he mea kūpono ia no nā kāʻei conveyor meaʻai ma muli o kona kūpaʻa wela 260 ° C, -70 ° C hiki ke anuanu, ʻaʻohe lāʻau lāʻau, a me ka mālama FDA. Nā mea nui: nā umu bakena (biscuits, berena, pizza), nā mea lawe meaʻai palai, nā laina hoʻoluʻu candy, nā tunnels hau, nā sila wela, a me ka ʻōwili ʻana. Hoʻemi i ka pau ʻole a me ka manawa hoʻomaʻemaʻe.

Kalendering - kaomi ʻana i ka lole i uhi ʻia i ka PTFE ma waena o nā wili aniani wela ma 360-380 ° C - hoʻololi nui i ka morphology ili, hoʻokuʻu i nā waiwai, impermeability, a me ka hana mechanical. Hoʻemi ia i ka roughness mai Ra 0.5-1.0 μm a <0.05 μm, hoʻopaʻa i nā pinholes, hoʻomaikaʻi i ka pale ʻana, akā hoʻemi i ka ikaika o ka waimaka a me ka maʻalahi. Pono no ka hoʻokuʻu ʻana i nā liner a me ka hoʻokaʻawale uila.

Hoʻohana ʻia ka lole kiʻekiʻe PTFE a me ka lole silikoni i ka lole fiberglass ma ke ʻano he kumu akā ʻokoʻa i nā mea uhi (PTFE resin vs silicone rubber). ʻOi aku ka PTFE i ka lāʻau ʻole, ka pale ʻana i ka lole, a me ke kūʻē kemika a hiki i 260°C. Hāʻawi ka lole silikoni i ka maʻalahi, ka hoʻokaʻawale uila, a me ke kūpaʻa ahi (a hiki i 230 ° C). E koho ma muli o kāu mea nui.

ʻO ka lole wela kiʻekiʻe ʻo PTFE (PTFE membrane material) kahi koho maikaʻi loa no ka hoʻolālā tensile. ʻO nā pōmaikaʻi nui: 30+ makahiki ke ola i waho, hoʻomaʻemaʻe iā ia iho (holoi ka lepo i ka wai ua), hoʻouna māmā māmā (6-13%), helu ahi papa A, a me ka ikaika like me ke kila ma lalo o 1.5 kg/m². Hoʻohana ʻia i nā kahua pāʻani, nā mokulele, a me nā hale kiʻiʻoniʻoni ma ka honua holoʻokoʻa.

ʻAʻole i kaupalena ʻia ka impregnation PTFE i ka lole fiberglass. Hōʻike kēia ʻatikala i nā substrate ʻē aʻe 7 - aramid, carbon fiber, PBI, porous metal, graphite, asbestos (phased out), a me nā mea hoʻopiha ceramic - me kā lākou mau hiʻohiʻona kaʻina, nā pono, nā palena, a me nā noi nui.

Hōʻike kēia ʻatikala i ke kumu o ka lole fiberglass alkali-free ka substrate makemake no ka lole wela kiʻekiʻe PTFE. Uhi ia i ka hoʻopaʻa kemika ma o nā mea hoʻopili silane a me nā waiwai kino koʻikoʻi e like me ke kūpaʻa wela, ke kūpaʻa dimensional, a me ka pale ʻana i ka corrosion - e hōʻoiaʻiʻo ana i ka hana mau loa i nā kaiapuni paʻakikī.