Umahluko phakathi kweNayiloni kunye ne-PTFE

Inayiloni kunye ne-PTFE ziipholima ezenziwe ngumntu ezisetyenziswa kakhulu kushishino lwepolymer.Inayiloni yipolyamide kwaye ipholima yipolymer efluoro.Zombini zinobunzima obuphezulu bemolekyuli kwaye ziyi-thermoplastics.PTFEi-phobic yamanzi, i-chemically less reactive material kunye ne-conductivity ephezulu yombane, kunye ne-coefficient ephantsi kakhulu yokukhuhlana.Inayiloni yimathiriyeli yesilika kwaye yenye indlela yazo zombini iintsimbi nezingezizo iintsimbi, kuquka ubhedu, ubhedu, umthi, iiplastiki kunye nerabha.

Yintoni inayiloni

Inayiloni i-aliphatic polymer, i-polyamide esetyenziswa kakhulu kumashishini amaninzi.Inayiloni zi-thermoplastics.Isetyenziswe njengento yokuthwala, kunye nempahla yokunxiba.Eyona nto isetyenziswa rhoqo inayiloni ithatha indawo yobhedu, ubhedu, intsimbi kunye nealuminiyam.Ukongeza, inokusetyenziswa njengenye into yomthi, iiplastiki kunye nerabha.

Inayiloni i-silky material eyaveliswa okokuqala nguWallace Carothers ngo-1935. Iiyiloni ziveliswa kwi-reaction ye-hexamethylenediamine kunye ne-adicarboxylic acid (1: 1 ratio) phambi kwamanzi, kwi-reactor.

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Imicu yenayiloni isetyenziselwa ukuvelisa izigqubuthelo zomtshato, iintambo kwizixhobo zomculo, iikhaphethi, imibhobho, iintente, kunye nempahla yokunxiba.Uhlobo oluqinileyo lwenayiloni lukwasetyenziswa kwamanye amashishini ukuvelisa iikama kunye namalungu omatshini aquka iigiya kunye nezikrufu zomatshini.I-extrusion, casting, kunye nokubumba inaliti zezona ndlela zisetyenziswayo ukuvelisa inayiloni zebakala lobunjineli.

Yintoni i-PTFE?

I-PTFE yi-synthetic fluoropolymer eyaziwa ngokuba yi-polytetrafluoroethylene (PTFE).Yimathiriyeli efunyenwe ngempazamo ngusokhemesti waseDupont, uGqr. Roy Plunkett ngo-1960, xa wayesebenzela ukufumana enye imathiriyeli ngeenjongo zokupholisa.

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Inenani elininzi lokusetyenziswa kwezorhwebo ngenxa yeempawu zayo ezizodwa kunye neekhemikhali.Yimpahla ye-hydrophobic.Ke ngoko, akukho manzi okanye izisombululo ezinamanzi zinokumanzisa imiphezulu yepolymer.i-polymer isetyenziswa ngokubanzi kwiipani zokupheka ezinganamatheli njengengubo.Oku kukwasetyenziswa njenge-lubricant kuba kunciphisa ukukhuhlana.Ulwakhiwo oludityanisiweyo lwe-PTFE luzinze kakhulu;ngoko ke, ine-reactivity ephantsi yeekhemikhali kunye nenqanaba eliphezulu lokubilisa.Ukongezelela, ine-conductivity yombane efanelekileyo.i-polymer yimathiriyeli ye-thermoplastic, oku kuthetha ukuba iimpawu zayo ziyatshintsha xa ishushu okanye ipholile.I-PTFE inazo zonke ezi zinto ziluncedo ngenxa yesakhiwo sayo semolekyuli.

Yintoni umahluko phakathi kweNayiloni kunye ne-PTFE?

• Imichiza ekhoyo kwipolima yenayiloni yiCarbon, iHydrogen, iOxygen, kunye neNitrogen.Ipolymer iqulethe iCarbon kunye neFluorine kuphela.

Zombini inayiloni kunye ne-PTFE zinamandla e-intramolecular, apho leyo yenayiloni “iyi-hydrogen bonds” kwaye eye-polymer “yi-London dispersion forces.”

• Imonoma (iyunithi ephindayo) yenayiloni yi (-NH--[CH2]5-CO-) kwaye leyo ye-PTFE yi (-F2-CC-F2).

• Inayiloni yimathiriyeli eyihydrophilic ngelixa i-PTFE iyeyemathiriyeli ebangelwa ngamanzi.

PS: Qhagamshelana nathi PTFE iimveliso ezigqityiweyo isampuli free