Nā ʻokoʻa ma waena o ETFE a me PTFE nā lako
ETFE (ethylene-tetrafluoroethylene copolymer) a PTFE (polytetrafluoroethylene) ʻelua mau fluoroplastics hana kiʻekiʻe, ʻokoʻa loa i ka hana kemika, nā waiwai mechanical, nā ʻano hana, a me nā noi. ETFE, oiai e malama ana PTFE's maika'i kemika kū'ē, nui hoʻomaikaʻi mechanical ikaika a me ka hana hana, akā, kona wela kū'ē 'ana, ua emi iki. PTFE, ma ka ʻaoʻao ʻē aʻe, kaulana ʻo ia no kona kūpaʻa kiʻekiʻe kiʻekiʻe a me ke kūpaʻa kemika, akā ʻoi aku ka paʻakikī o ka hana. Eia ka hoʻohālikelike kikoʻī o nā mea ʻelua mai nā hiʻohiʻona lehulehu.
Hoʻokumu Kimia a me nā waiwai kumu
- PTFE: Polymerized mai ka tetrafluoroethylene monomers, ua hoʻopili piha ʻia kona ʻano mole e nā ʻātoma fluorine. Loaʻa iā ia ka crystallinity kiʻekiʻe a me ka inertness kemika ikaika loa, loaʻa iā ia ke poʻo inoa o "King of Plastics."
- ETFE: He copolymer o ka ethylene a me ka tetrafluoroethylene. ʻO ka hoʻokomo ʻana i nā ʻāpana ethylene i loko o ke kaulahao molecular e hōʻemi ana i ka ʻike fluorine, a laila e hoʻomaikaʻi ai i ka paʻakikī a me ka hiki ke hana, akā ʻoi aku ka haʻahaʻa o kona kūpaʻa kemika. PTFE.
Hoʻohālikelike Mechanical Properties
- Ka ikaika a me ka paʻakikī: E kaena ana ʻo ETFE i ka ikaika tensile a hiki i 50 MPa, ʻelua ʻelua o ka PTFE, a me ka elongation o 100% -300%, e hōʻike ana i ka hopena maikaʻi loa; PTFE, ma ka ʻaoʻao ʻē aʻe, he palupalu akā ʻoi aku ka kiʻekiʻe o ka waimaka.
- Coefficient of Friction: He haʻahaʻa haʻahaʻa loa ko lāua ʻelua, akā PTFE hāʻawi i ke kūpaʻa ʻoi aku ka maikaʻi, ʻoiai ʻoi aku ka maikaʻi o ka ETFE no nā mea hana e koi ana i ka paʻakikī kiʻekiʻe.
Hana Hana
- ETFE: Hiki ke hoʻoheheʻe ʻia (e laʻa, extrusion, injection molding), me kahi mahana hoʻoheheʻe haʻahaʻa (240-270 ℃), kūpono no ka hana ʻana i nā ʻano paʻakikī.
- PTFE: Kiʻekiʻe heheʻe helu (327 ℃) a kiʻekiʻe loa hehee ai viscosity, hana hehee-hana; hana maʻamau me ka hoʻohana ʻana i ka sintering a i ʻole ke kaomi ʻana i nā kaʻina hana, e hopena i nā kumukūʻai kiʻekiʻe.
