Nylon synthesized li cas?
Nylon synthesized li cas?

Video: Nylon synthesized li cas?

Video: Nylon synthesized li cas?
Video: nylon synthesis 2024, Hlis ntuj nqeg
Anonim

Synthesis thiab kev tsim khoom

Nylon -6,6 yog synthesized los ntawm polycondensation ntawm hexamethylenediamine thiab adipic acid. Qhov sib npaug ntawm hexamethylenediamine thiab adipic acid yog ua ke nrog dej hauv lub reactor. Qhov no yog crystallized los ua nylon ntsev, ammonium / carboxylate sib tov

Yog li ntawd, nylon 6 synthesized li cas?

Nylon 6 yog synthesized los ntawm lub nplhaib-qhib polymerization ntawm caprolactam. Caprolactam muaj 6 carbons, li no ' Nylon 6 '. Thaum lub sij hawm polymerization, lub amide daim ntawv cog lus nyob rau hauv txhua caprolactam molecule yog tawg, nrog rau cov active pab pawg nyob rau hauv txhua sab rov tsim ob daim ntawv cog lus tshiab raws li cov monomer ua ib feem ntawm cov pob txha polymer.

Secondly, dab tsi byproduct yog tsim nyob rau hauv zus tau tej cov nylon? Nylons kuj tuaj yeem tsim los ntawm diamine thiab diacid chloride: Cov tshuaj tiv thaiv no mus los ntawm tib lub tswv yim, tab sis koj yuav tsum tau ntxiv me ntsis acid los ua ib qho catalyst. (Thaum koj ua nylon rau lwm txoj kev, adipic kua qaub ua raws li cov catalyst.) Tsis tas li ntawd, nws tsim HCl roj raws li cov khoom lag luam es tsis yog dej.

Tom qab, lo lus nug yog, qhov twg nylon ua?

Northeast Asia tseem yog qhov chaw nruab nrab ntawm lub ntiaj teb kev lag luam nylon fiber ntau. Hauv xyoo 2018, Asia muaj nyiaj ntau dua ob feem peb ntawm lub ntiaj teb cov khoom siv nylon fiber ntau (nrog rau Tuam Tshoj accounting rau 56% ntawm lub ntiaj teb no nylon fiber ntau lawm).

Nylon ua cov menyuam li cas?

Nws yog thawj hluavtaws fiber ntau los ua ua tag nrho los ntawm cov khoom xyaw inorganic - thee, dej thiab cua. Cov no yog tsim mus rau hauv cov tshuaj nruab nrab amine, hexamethylene diamine thiab adipic acid, uas yog ces polymerised. Qhov feem ntau variant yog nylon 6, 6, npe nylon 66.

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