PTFE vs MPTFE (PTFE i hoʻololi ʻia)

PTFEHoʻohana ʻia ʻo TFM no nā bellows i nā noi kūʻē i ka corrosion - ʻo ia hoʻi nā pūhui organik, nā waikawa, a me nā paʻakai - a me nā noi maʻemaʻe kiʻekiʻe.Hōʻike lāua ʻelua i ke ʻano lāʻau ʻole, a loaʻa i nā ʻano wela hoʻohana like.Eia nō naʻe, aia nā ʻokoʻa nui ma waena o lākou, ʻo ia hoʻi no ka hui pū ʻana o TFM i nā hiʻohiʻona maikaʻi loa o ka PTFE a me ka PFA.ʻO TFM ka mea i koho ʻia inā makemake ʻoe i ka haʻahaʻa haʻahaʻa o ke kinoea, ke ola luhi lōʻihi, a me ka hoʻopau ʻana i ka ʻili.

ʻO ka PTFE i hoʻololi ʻia he ʻano hoʻololi kemika o PTFE i loaʻa nā mana hou i ka hoʻohui ʻana i nā hiʻohiʻona waiwai e kūlike me nā mea PTFE puʻupaʻa.

Loaʻa i ka PTFE i hoʻololi ʻia kēia mau hiʻohiʻona hou a maikaʻi paha ma mua o ka PTFE maʻamau:

ʻOi aku ka maʻemaʻe o ka ʻāpana ʻāpana, a ʻoi aku ka porous - noho maʻemaʻe nā ʻāpana no ka mea ʻaʻole hiki ke hoʻopaʻa ʻia i nā mea haumia. nā ʻenehana wili wela like ʻole me ke kaomi haʻahaʻa) Nā Laʻana o nā Containers & Tubes i hana ʻia me ka hoʻohana ʻana i nā kaʻina hana hoʻoheheʻe a me ka mīkini ʻenehana a APT.

ʻO ka PTFE ka Polytetrafluoroethylene, he fluorocarbon thermoplastic i loaʻa i ka hoʻohana nui ʻana i nā noi ʻenekinia a ʻike ʻia no ka loaʻa ʻana o ka coefficient haʻahaʻa o ka friction o kekahi paʻa.ʻIke ʻia ʻo ia he polymer, Dyneon TM, 1,1,2,2-tetraflouroethene a i ʻole 1,1,2,2-tetraflouroethylene.

E like me ka mea i kuhikuhi ʻia, ʻo PTFE kekahi o nā polymers inert loa i loaʻa (Chemical Resistance Chart).Loaʻa iā ia kahi pae wela hoʻohana mau mai -200 ° C a i 250 ° C a kūpaʻa loa i ka hoʻoheheʻe wai.Eia kekahi, loaʻa iā ia kahi ʻano anti-adhesive e kūʻē i ke kūkulu ʻana o nā mea paʻa, e maʻalahi loa i ka CIP (Clean In Place).ʻOiaʻiʻo, aia nā māka like ʻole o ka PTFE i ʻae ʻia e FDA.

Hoʻololi ʻia ʻo PTFEua kapa ʻia ʻo polytetrafluoroethylene, a ma ka inoa kālepa Polyflon.He hui hoʻohiwahiwa ia o nā waiwai o PTFE a me PFA (Perfluoroalkoxy), i ʻike ʻia no kāna mau waiwai mechanical kiʻekiʻe.

E like me ka PTFE, ʻaʻohe kemika ʻo TFM a loaʻa iā ia kahi ʻano like no ka hoʻohana mau ʻana i ka mahana, a me ke kūʻē like ʻana i ka lawe ʻana i ka wai.Hoʻopaʻa pū ia i ka nui o nā ʻano lāʻau non-stick o PTFE.

He kiʻekiʻe iki ka nui o ka punawai TFM, akā ʻoi aku ka maikaʻi o nā waiwai luhi a hōʻike i ka hoʻihoʻi ʻana i ke kaumaha.Eia hou, ua maʻalahi ka weld ma mua o ka PTFE a emi ke kaumaha.Kūʻē pū ʻo TFM i ka embrittlement a me ka ʻelemakule.

ʻO kahi mea e hoʻokaʻawale ai i ka TFM ʻo ia ka nui o ka molecular structure.ʻO kēia ka hopena i kahi haʻahaʻa haʻahaʻa haʻahaʻa o ke kinoea permeation no ka like o ka mānoanoa o nā mea ke hoʻohālikelike ʻia me PTFE.He mea koʻikoʻi kēia hiʻohiʻona ke hoʻohana ʻia i loko o kahi ʻano corrosive.Me kona ʻano molekala paʻa, hāʻawi pū ʻo TFM i kahi hoʻopau ʻoi aku ka maikaʻi o ka PTFE.Eia kekahi, e like me PTFE, aia nā māka like ʻole o TFM i ʻae ʻia e FDA.