Na Mea Paipalapala

Nā Mea Hana Liner: PTFE (Polytetrafluoroethylene), PFA (Perfluoroalkoxy), ETFE (Tefzel®, ethylene tetrafluoroethylene), PVDF (Polyvinylidene Fluoride), PP (Polypropylene)…

PTFE (Polytetrafluoroethylene)

PTFE, ʻo ka fluoropolymer maʻamau i hoʻohana ʻia, he kūpaʻa maikaʻi loa ka wela kiʻekiʻe i nā mea kemika āpau koe wale nō ka fluorine elemental a me nā metala alkali hoʻoheheʻe.Eia kekahi, loaʻa i ka PTFE nā waiwai lāʻau ʻole i hiki ke hōʻemi a hoʻopau paha i ke kūkulu ʻana o nā waihona ma nā paia paipu.ʻO nā mahana lawelawe ma nā ʻōnaehana paipu kaomi mai -20°F (-29°C) a hiki i 450°F (230°C).

PFA (Perfluoroalkoxy)

Hōʻike ka PFA i ke kūpaʻa kemika e like me ka PTFE.He kūpono no ka lawelawe ʻana mai ka 0°F a hiki i 450°F, ʻo PFA kahi thermoplastic fluorinated i ʻike ʻia no kāna mau mana ultra-pure.Hāʻawi ʻo PFA i ke kūpaʻa creep kiʻekiʻe i ka wela kiʻekiʻe, ka paʻakikī haʻahaʻa haʻahaʻa haʻahaʻa maikaʻi a me ke kū ʻana o ka lapalapa ahi.

ETFE (Tefzel®, ethylene tetrafluoroethylene)

Hoʻohui ʻo Tefzel® i ka paʻakikī mechanical me ke kūpaʻa kemika koʻikoʻi e pili ana i ka polymer®.Maikaʻi mai -20°F a 300°F, maʻalahi ka hana ʻana a ʻike ʻia ʻo Tefzel no kona kūpaʻa ʻana i ka ikehu kiʻekiʻe.

PVDF (Polyvinylidene Fluoride)

He kūʻē maikaʻi ʻo PVDF i nā kemika he nui, me nā halogens a me nā oxidants ikaika.Hōʻike ʻo PVDF i ka abrasion maikaʻi loa a me ke kūpaʻa permeation.Ke hoʻohana nei ʻo PSI i ka homopolymer (6″ – 8″ pono) a me nā copolymer resins (1″ – 8″ paipu, 1″ – 4″ pono), ua helu ʻia ka ʻōnaehana laina PVDF mai 0°F (-29°C) a 275°F (135°C).No ka mea ʻo PVDF wale nō ka fluorinated, ʻo kona kūpaʻa kemika e pili ana i ka mahana a me ka neʻe ʻana o nā wai a me nā kinoea.

PP (Polypropylene)

ʻO ka PP homopolymer PSI e hoʻohana ai i ka pale ʻana i ka corrosion maikaʻi, ka haʻahaʻa haʻahaʻa haʻahaʻa, a me nā waiwai mechanical maikaʻi.No ka mea ua hoʻopilikia nui ʻia kona kūpaʻa kemika e ka neʻe ʻana a me ka mahana o ka wai i lawe ʻia, ua kaupalena ʻia kona hoʻohana ʻana i nā ʻōnaehana paipu kaomi mai 0°F (-16°C) a i 225°F (107°C).