Musiyano Pakati peNylon nePTFE

Nylon uye PTFE mapolymer akagadzirwa nemanmade anonyanya kushandiswa muindasitiri yepolymer.Nylon i polyamide uye polima i fluoro polymer.Ose ari maviri ane huremu hwemamorekuru uye ari thermoplastics.PTFEimvura phobic, kemikari isingaite reactive zvinhu ine yakakwirira yemagetsi conductivity, uye yakaderera coefficient yekukwesha.Nylon chinhu chine silky uye ndiyo imwe nzira kune ese masimbi uye asiri-simbi, anosanganisira ndarira, bhuronzi, huni, mapurasitiki, uye rabha.

Chii chinonzi Nylon

Nylon is an aliphatic polymer, polyamide inonyanya kushandiswa mumaindasitiri mazhinji.Nylons ndiyo thermoplastics.Inoshandiswa sekutakura, pamwe chete nekupfeka zvinhu.Kunyanya kushandiswa kwenaironi kwakafanana nekutsiva bhuronzi, ndarira, simbi, uye aluminium.Mukuwedzera, inogona kushandiswa seimwe nzira yehuni, mapurasitiki, uye rabha zvakare.

Nylon isimbi ine silky yakatanga kugadzirwa naWallace Carothers muna 1935. Nylons inogadzirwa kubva mukuita kwehexamethylenediamine ine adicarboxylic acid (1: 1 ratio) pamberi pemvura, mune reactor.

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Nylon faibha dzinoshandiswa kugadzira machira emuchato, tambo muzviridzwa zvemimhanzi, makapeti, pombi, matende, uye zvipfeko.Iyo yakasimba fomu yenaironi inoshandiswawo mune mamwe maindasitiri kugadzira mizinga uye mekiniki zvikamu zvinosanganisira magiya nemasikiru emuchina.Extrusion, casting, uye jekiseni molding ndiwo matekiniki anoshandiswa kugadzira mainjiniya egiredhi manylon.

Chii chinonzi PTFE?

PTFE is a synthetic fluoropolymer inozivikanwawo sepolytetrafluoroethylene (PTFE).Icho chinhu chakawanikwa netsaona naDupont chemist, Dr. Roy Plunkett muna 1960, apo aishanda kutsvaga chimwe chinhu chezvinangwa zvekutonhodza.

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Iyo ine huwandu hwakawanda hwekutengesa kushandiswa nekuda kwekusiyana kwayo kwemuviri uye makemikari zvimiro.Icho chinhu chinonzi hydrophobic.Naizvozvo, hapana mvura kana zvigadziriso zvine mvura zvinogona kunyorovesa nzvimbo dzepolymer.polymer inoshandiswa zvakanyanya mumapani ekubikira asina-tsvimbo sejasi.Izvi zvinoshandiswawo semafuta nekuti zvinoderedza kupokana.Chisungo chekubatanidza chePTFE chakanyanya kugadzikana;saka, ine yakaderera kemikari reactivity uye yakakwirira kufashaira poindi.Mukuwedzera, ine yakanaka conductivity yemagetsi.polymer chinhu chinonzi thermoplastic, zvinoreva kuti zvimiro zvayo zvinoshanduka kana ichidziya kana kutonhora.PTFE ine zvese izvi zvinobatsira zvivakwa nekuda kwechimiro chayo chemorekuru.

Ndeupi musiyano uripo pakati peNylon nePTFE?

• Makemikari anowanikwa mupolymer yenylon iCarbon, Hydrogen, Oxygen, uye Nitrogen.polymer ine Carbon neFluorine chete.

• Zvose naironi nePTFE zvine simba remukati memuviri, apo iyo naironi iri "hydrogen bonds" uye iyo yepolymer "London dispersion forces."

• Iyo monomer (inodzokorora chikwata) yenylon ndeye (-NH--[CH2]5-CO-) uye iyo yePTFE ndeye (-F2-CC-F2).

• Nylon i hydrophilic material nepo PTFE iri hydrophobic material.

PS: Bata isu kune PTFE yakapedza zvigadzirwa zvemahara sampuro