Nylon le PTFE ke li-polymer tsa maiketsetso tse entsoeng ke motho tse sebelisoang haholo indastering ea polymer.Nylon ke polyamide le polymer ke fluoro polymer.Ka bobeli li na le boima bo phahameng ba limolek'hule 'me ke thermoplastics.PTFEke phobic ea metsi, lisebelisoa tse sa sebetseng hantle tsa lik'hemik'hale tse nang le conductivity e phahameng ea motlakase, le coefficient e tlase haholo ea likhohlano.Nylon ke thepa e entsoeng ka silika 'me ke mokhoa o mong bakeng sa litšepe le tse seng tsa tšepe, ho kenyelletsa le koporo, boronse, lehong, polasetiki le rabara.
Nylon ke eng
Nylon ke polymer ea aliphatic, polyamide e sebelisoang haholo liindastering tse ngata.Nylons ke thermoplastics.E sebelisoa e le ho beha, hammoho le thepa ea ho roala.Tšebeliso ea khafetsa ea nylon ke ho nkela boronse, koporo, tšepe le aluminium sebaka.Ntle le moo, e ka sebelisoa e le lisebelisoa tse ling bakeng sa lehong, polasetiki le rabara.
Nylon ke thepa ea silika e qalileng ho hlahisoa ke Wallace Carothers ka 1935. Li-nylon li hlahisoa ho tloha karabelo ea hexamethylenediamine ka adicarboxylic acid (karolelano ea 1: 1) ka pel'a metsi, ka har'a mochine o motlakase.
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Likhoele tsa nylon li sebelisetsoa ho hlahisa masira a lenyalo, likhoele tsa liletsa tsa 'mino, lik'hapete, liphaephe, litente le thepa ea liaparo.Mofuta o tiileng oa nylon o boetse o sebelisoa liindastering tse ling ho hlahisa likama le likarolo tsa mochini tse kenyelletsang likere le likurufu tsa mochini.Extrusion, casting, le molding ea ente ke mekhoa e sebelisoang ho hlahisa li-nylon tsa sehlopha sa boenjiniere.
PTFE ke eng?
PTFE ke fluoropolymer ea maiketsetso e tsejoang hape e le polytetrafluoroethylene (PTFE).Ke ntho e fumanoeng ka phoso ke setsebi sa k'hemistri sa Dupont, Ngaka Roy Plunkett ka 1960, ha a ne a sebetsa ho fumana lisebelisoa tse ling bakeng sa merero ea ho pholisa.
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E na le lisebelisoa tse ngata tsa khoebo ka lebaka la thepa ea eona e ikhethang ea 'mele le ea lik'hemik'hale.Ke thepa ea hydrophobic.Ka hona, metsi kapa litharollo tse nang le metsi li ke ke tsa kolobisa bokaholimo ba polymer.polymer e sebelisoa haholo lipane tsa ho pheha tse sa thupeng e le ho roala.Sena se boetse se sebelisoa e le setlolo hobane se fokotsa likhohlano.Sebopeho sa bonding sa PTFE se tsitsitse haholo;ka hona, e na le lik'hemik'hale tse fokolang tsa lik'hemik'hale le sebaka se phahameng sa ho belisa.Ho phaella moo, e na le conductivity e ntle ea motlakase.polymer ke thepa ea thermoplastic, e bolelang hore thepa ea eona e fetoha ha e futhumala kapa e pholile.PTFE e na le lisebelisoa tsena tsohle tsa bohlokoa ka lebaka la sebopeho sa eona sa limolek'hule.
Phapano ke efe lipakeng tsa Nylon le PTFE?
• Lik'hemik'hale tse teng polimang ea nylon ke Carbon, Hydrogen, Oxygen, le Nitrogen.polymer e na le Carbon le Fluorine feela.
• Nylon le PTFE ka bobeli li na le matla a intramolecular, moo ea nylon e leng "hydrogen bonds" 'me ea polymer e le "London dispersion forces."
• The monomer (pheta yuniti) ea nylon ke (-NH--[CH2]5-CO-) le ea PTFE ke (-F2-CC-F2).
• Nylon ke sesebediswa sa hydrophilic athe PTFE ke sesebediswa sa hydrophobic.
PS: Ikopanye le rona bakeng sa sampole ea mahala ea PTFE
Nako ea poso: May-14-2017