ʻIke pinepine ʻia ʻo Teflon he polytetrafluoroethylene (ʻōlelo Pelekane teflon a i ʻole [PTFE, F4]), i ʻike ʻia ʻo ka "plastic king", a ʻike ʻia hoʻi ʻo "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", "Teflon", a me "Teflon". He hui polimer ia i hana ʻia me ka tetrafluoroethylene e ka polymerization, a maʻalahi kona ʻano e like me -[-cf2-cf2 -]n-.

ʻO Polytetrafluoroethylene, i ʻike mau ʻia ma ke ʻano he uhi lāʻau ʻole a i ʻole mea maʻalahi e hoʻomaʻemaʻe. Loaʻa i kēia mea nā hiʻohiʻona o ka waika a me ke kūpaʻa alkali, ke kū'ē i nā mea hoʻoheheʻe organik like ʻole, a aneane hiki ʻole ke hoʻoheheʻe ʻia i nā solvents āpau. I ka manawa like, loaʻa ka polytetrafluoroethylene i nā ʻano o ke kūpaʻa wela kiʻekiʻe, haʻahaʻa loa kona coefficient o friction, no laila hiki ke hoʻohana ʻia no ka lubrication, akā lilo pū kekahi i mea uhi kūpono no ka maʻalahi e hoʻomaʻemaʻe i ka papa o loko o nā paipu wai.

ʻO ka uhi ʻana o Teflon e hilinaʻi nui ʻia i ke ʻano o ke kaʻina āu e makemake ai e hoʻoholo pehea e pīpī ai. ʻO ka mea nui loa, pono e kālua ʻia ka uhi Teflon i nā wela kiʻekiʻe ma mua o ka hoʻohana ʻana.

Nā hiʻohiʻona o Teflon:

ʻAʻole paʻa: ʻaneʻane ʻaʻole paʻa nā mea āpau me ka uhi teflon.

ʻO ka pale wela haʻahaʻa: maikaʻi mechanical toughness; ʻOiai inā hāʻule ka mahana i -196 ° C, hiki ke mālama ʻia ka 5% elongation. He palupalu mau ma -100 degere.

ʻO ka pale wela kiʻekiʻe: ʻO ka uhi polytetrafluoroethylene he wela maikaʻi loa a me ke kūpaʻa haʻahaʻa haʻahaʻa. Hiki iā ia ke pale i ka wela kiʻekiʻe a hiki i 300 ° C no ka manawa pōkole, hiki ke hoʻohana mau ʻia ma waena o 240 ° C a me 260 ° C, a loaʻa ka paʻa wela koʻikoʻi, hiki iā ia ke hana i nā mahana maloʻo me ka ʻole o ka embrittlement, ʻaʻole hoʻoheheʻe i nā wela kiʻekiʻe. .

Lubrication kiʻekiʻe: ʻO ia ka mea haʻahaʻa haʻahaʻa haʻahaʻa i nā mea paʻa. Loaʻa iā ia ka coefficient haʻahaʻa o ka friction (0.04) ma waena o nā plastics. ʻOi aku ka maʻalahi ma mua o ka hau.

ʻO ka pale ʻana o ka wai: ʻaʻole i hoʻopaʻa ʻia ka ʻili o ka PTFE me ka wai a me ka ʻaila, a ʻaʻole maʻalahi ke hoʻopili i ka hopena i ka wā hana. Inā he liʻiliʻi ka lepo, hiki ke wehe ʻia me ka holoi ʻana. ʻO ka manawa haʻahaʻa pōkole e mālama i ka manawa a hoʻomaikaʻi i ka pono hana.

Kākoʻo ʻaʻahu: He kūpaʻa maikaʻi loa ia ma lalo o ka ukana kiʻekiʻe. Ma lalo o kekahi ukana, loaʻa iā ia nā pono ʻelua o ka pale ʻana a me ka hoʻopili ʻole.

ʻO ke kūpaʻa ʻino: ʻaneʻane kaʻawale ka polytetrafluoroethylene mai ka hoʻouka ʻana i ka lāʻau, a hiki ke kū i nā ʻakika ikaika a pau (me ka aqua aqua), nā oxidants ikaika, nā mea hoʻohaʻahaʻa a me nā mea hoʻoheheʻe ʻokoʻa like ʻole me nā metala alkali hoʻoheheʻe, fluorinated media a me ka sodium hydroxide ma luna o 300 ° C, a hiki ke pale i nā ʻāpana mai kekahi ʻano ʻino kemika.

ʻO ka pale ʻana i ka wā kahiko: ka pale ʻana i ka radiation a me ka haʻahaʻa haʻahaʻa: ka lōʻihi o ka ʻike ʻana i ka lewa, ʻaʻole i loli ka ʻili a me ka hana.

ʻAʻole hiki ke puhi ʻia: ʻo ka helu helu palena o ka oxygen ma lalo o 90.

ʻO ka ʻakika a me ke kūpaʻa alkali: ʻaʻole hiki ke hoʻoheheʻe ʻia i loko o nā ʻakika ikaika, nā kumu ikaika a me nā mea hoʻoheheʻe organik (me ka waikawa magic, ʻo ia hoʻi, ka waika fluoroantimonic).

Kū'ē oxidation: kū'ē i ka corrosion e nā oxidant ikaika.

Insulation: ʻO ka hana uila maikaʻi loa, he mea hoʻopololei C-class maikaʻi loa, hiki i kahi papa o ka pepa mānoanoa ke ālai i ka 1500V kiʻekiʻe. ʻAʻole pili ʻia kona insulation uila e ka wela. He haʻahaʻa ka pau ʻana o ka dielectric a me ka dielectric ma kahi ākea ākea, a kiʻekiʻe ka puʻupuʻu haʻihaʻi, ka nui resistivity a me ke kūpaʻa arc.

Acid-base: kū ʻole.