Nailons he papa maʻamau o nā plastics i puni mai ka makahiki 1930. He polyamide polymer ia i hoʻohana maʻamau ʻia i loko o nā kaʻina hana plastik maʻamau no nā kiʻiʻoniʻoni plastik, nā ʻili metala a me nā paipu no ka aila a me ke kinoea - ma waena o nā mea ʻē aʻe. Ma keʻano laulā, kaulana loa nā nylons no nā noi hoʻohui ma muli o ko lākou hiki ke kaʻina, e like me ka mea i hōʻike ʻia ma ka hōʻike makahiki 2017 State of 3D Printing. ʻO ka mea i hoʻohana nui ʻia ʻo SLSPolyamide 12 (PA 12), ʻike ʻia hoʻi ʻo Nylon 12 PA 12 (ʻike ʻia ʻo Nylon 12) he plastik hoʻohana maʻamau maikaʻi me nā noi hoʻohui ākea a ʻike ʻia no kona paʻakikī, ikaika tensile, ikaika hopena a me ka hiki ke hoʻololi me ka haki ʻole. Ua hoʻohana lōʻihi ʻia ʻo PA 12 e nā mea hoʻoheheʻe injection ma muli o kēia mau waiwai mechanical. A i kēia mau lā, ua hoʻohana ʻia ʻo PA 12 i mea paʻi 3D maʻamau no ka hana ʻana i nā ʻāpana hana a me nā prototypes.
Nailona 12he polimer nylon. Hana ʻia ia mai ka ω-amino lauric acid a i ʻole laurolactam monomers i loaʻa i kēlā me kēia me 12 kalapona, no laila ka inoa ʻo "Nylon 12". Aia kona mau hiʻohiʻona ma waena o nā nylon aliphatic kaulahao pōkole (e like me PA 6 a me PA 66) a me nā polyolefins. ʻO PA 12 kahi naila kalapona lōʻihi. ʻO ka haʻahaʻa haʻahaʻa haʻahaʻa a me ka nui o ka wai, 1.01 g/mL, ka hopena ma muli o ka lōʻihi o ka lōʻihi o ke kaulahao hydrocarbon, a ʻo ia hoʻi ka hāʻawi ʻana iā ia i ke ʻano paʻa a me kahi ʻano like me ka paraffin. ʻO nā waiwai ʻo Nylon 12 nā hiʻohiʻona haʻahaʻa haʻahaʻa loa o nā polyamides a pau, ʻo ia hoʻi nā ʻāpana i hana ʻia mai PA 12 e noho paʻa i nā wahi haʻahaʻa.
Eia kekahi, polyamide 12 me ke kūpaʻa kemika maikaʻi, me ka hoʻohaʻahaʻa i ka naʻau i ke koʻikoʻi. Ma lalo o nā kūlana maloʻo maloʻo, haʻahaʻa ke koena sliding friction coefficient o ke kila, POM, PBT a me nā mea ʻē aʻe, me ke kūpaʻa maikaʻi loa, kūpaʻa, paʻakikī kiʻekiʻe loa, a me ke kūpaʻa hopena. I kēia manawa, ʻo PA 12 he insulator uila maikaʻi a, e like me nā polyamides ʻē aʻe, ʻaʻole pili i ka insulation e ka wai. Ma waho aʻe o ka PA 12 lōʻihi aniani fiber i hoʻoikaika ʻia i nā mea thermoplastic maikaʻi ka walaʻau a me ka haʻalulu haʻalulu.
PA 12ua hoʻohana ʻia e like me ka plastic i ka ʻoihana kaʻa no nā makahiki he nui: ʻo nā hiʻohiʻona o nā paipu multilayer i hana ʻia me PA 12 e pili ana i nā laina wahie, nā laina kīwī pneumatic, nā laina hydraulic, ka ea intake system, air boost system, hydraulic system, automotive electronics and lighting, cooling and air conditioning system, oil system, power system and chassis in the vehicles of countless automobiles. ʻO kona kūpaʻa kemika a me nā waiwai mechanical koʻikoʻi e hoʻolilo iā PA 12 i mea kūpono no ka media pili i loaʻa nā hydrocarbons.
Inā makemake ʻoe e ʻike i ka ʻike hou aku a pono ʻoe e hana i ke ʻano paʻi 3d, e ʻoluʻolu e keleponaMea Hana 3D JSADDi nā manawa āpau.
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Mea kākau: Simon | Lili Lu | Kahakai
