PTFE mediaʻO ka mea maʻamau e pili ana i kahi media i hana ʻia me ka polytetrafluoroethylene (PTFE no ka pōkole). ʻO kēia ka hōʻike kikoʻī i ka media PTFE:

Ⅰ. waiwai waiwai

1.Chemical paʻa

He mea paa loa ka PTFE. Loaʻa iā ia ke kūpaʻa kemika ikaika a paʻa ʻole i nā mea kemika a pau. No ka laʻana, i loko o ke kaiapuni o nā ʻakika ikaika (e like me ka sulfuric acid, nitric acid, etc.), nā kumu ikaika (e like me ka sodium hydroxide, etc.) a me nā mea hoʻoheheʻe he nui (e like me benzene, toluene, a me nā mea ʻē aʻe), ʻaʻole e hana kemika nā mea PTFE. ʻO kēia ka mea i kaulana loa i nā noi e like me nā sila a me nā paipu paipu i loko o ka ʻoihana kemika a me ka lāʻau lapaʻau, no ka mea, pono pinepine kēia mau ʻoihana i nā ʻano mea paʻakikī.

2.Temperature kū'ē

Hiki i ka media PTFE ke mālama i kāna hana ma kahi ākea ākea. Hiki iā ia ke hana maʻamau i ka pae wela o -200 ℃ a 260 ℃. I nā mahana haʻahaʻa, ʻaʻole ia e lilo i palupalu; i nā wela kiʻekiʻe, ʻaʻole ia e decompose a i ʻole deform e like me ka maʻalahi o kekahi mau plastik maʻamau. ʻO kēia kūpaʻa wela maikaʻi e hoʻohana nui i ka media PTFE i ka aerospace, electronics a me nā māla ʻē aʻe. No ka laʻana, i loko o ka ʻōnaehana hydraulic o kahi mokulele, hiki i ka media PTFE ke pale i ka wela kiʻekiʻe i hana ʻia e nā hoʻololi wela ambient a me ka hana ʻōnaehana i ka wā lele.

3.Low friction coefficient

He haʻahaʻa haʻahaʻa haʻahaʻa loa ka PTFE, kekahi o nā mea haʻahaʻa loa ma waena o nā mea paʻa i ʻike ʻia. He liʻiliʻi loa kona mau mea hoʻoheheʻe ikaika a me static, ma kahi o 0.04. ʻO kēia ka PTFE dielectric maikaʻi loa ke hoʻohana ʻia ma ke ʻano he lubricant i nā ʻāpana mechanical. No ka laʻana, i kekahi mau mīkini hoʻoili uila, hiki i nā bearings a i ʻole bushings i hana ʻia me PTFE ke hoʻemi i ka friction ma waena o nā ʻāpana mechanical, hoʻemi i ka hoʻohana ʻana i ka ikehu, a hoʻolōʻihi i ke ola lawelawe o nā mea hana.

4.Electrical insulation

Loaʻa i ka PTFE nā waiwai insulation uila maikaʻi. Mālama ʻo ia i ka pale insulation kiʻekiʻe ma kahi ākea ākea. I nā lako uila, hiki ke hoʻohana ʻia ka PTFE dielectric e hana i nā mea insulating, e like me ka papa insulation o nā uea a me nā kaula. Hiki iā ia ke pale i ka leakage o kēia manawa, e hōʻoia i ka hana maʻamau o nā mea uila, a pale i ka hoʻopili electromagnetic waho.

No ka laʻana, i nā kaula kamaʻilio kiʻekiʻe, hiki i ka PTFE insulation layer ke hōʻoia i ka paʻa a me ka pololei o ka lawe ʻana i ka hōʻailona.

5.Non-stickiness

ʻO ka ʻili o ka PTFE dielectric he ikaika ʻole-stickiness. ʻO kēia no ka mea he kiʻekiʻe loa ka electronegativity o nā ʻātoma fluorine i loko o ka molekala PTFE, e paʻakikī ana i ka ʻili PTFE e hoʻopaʻa kemika me nā mea ʻē aʻe. ʻO kēia non-stickiness ka PTFE i hoʻohana nui ʻia i nā uhi no nā mea kuke kuke (e like me nā pans non-stick). Ke hoʻomoʻa ʻia ka meaʻai i loko o ka pā lāʻau ʻole, ʻaʻole ia e pili maʻalahi i ka pā pā, e maʻalahi ai ka hoʻomaʻemaʻe a hoʻemi i ka nui o ka momona i hoʻohana ʻia i ka wā kuke.