Qhov sib txawv ntawm Polyamide thiab Nylon

Txawm hais tias polyamides thiab nylon feem ntau raug xa mus rau kev sib hloov, lawv tsis yog tib yam. Lo lus "polyamides" yog hais txog ib pawg ntawm cov khoom siv sib txawv thiab cov qauv molecular, ua rau lawv tsim nyog rau kev siv sib txawv. Nylon belongs rau subcategory hu ua aliphatic polyamides. Nws yuav zoo li tsis meej pem, tab sis tsis txhob txhawj, peb yuav saib tob rau hauv kev sib piv ntawm polyamides thiab nylons thiab muab txoj hauv kev yooj yim los txheeb xyuas txhua lub polymer. Peb tseem yuav saib lawv cov qib, rhuav tshem lawv cov qauv tshuaj lom neeg, thiab sau lawv cov khoom siv kho tshuab.

 

1. Polyamides yog dab tsi?

Polyamidesyog hluavtaws lossis natural polymers. Lawv yog tsim los ntawm cov pab pawg amide uas rov ua dua thiab sib cuam tshuam los ntawm kev sib txuas ntawm amide. Lawv tau nce crystallinity, thiab thermal thiab tshuaj tiv thaiv vim muaj hydrogen bonds. Polyamides feem ntau muaj qhov tsis zoo rau kev nqus dej noo, tab sis, nyob rau sab saud, qee qhov muaj zog tensile zoo heev thiab cuam tshuam tsis kam. Qee qhov piv txwv ntawm ntuj polyamides muaj xws li ntaub plaub, txhob lo lo ntxhuav, collagen, thiab keratin. Synthetic polyamides tuaj yeem faib ua peb pawg:

 

Aliphatic Polyamides

Cov qeb no kuj suav nrog ntau qib nylon xws li Nylon 6 thiab Nylon 6/6.

Aromatic Polyamides: Kuj tseem hu ua aramids, pawg no yog nyiam los ntawm ntau tus neeg siv Xometry los tsim cov fibers xws li Nomex (siv rau hauv cov ntaub ntawv hluav taws kub), thiab Kevlar (paub rau nws siv hauv kev tsim cov mos txwv vests).

Semi-Aromatic Polyamides

Cov khoom siv hluav taws xob ua haujlwm siab no, tseem hu ua polyphthalamides lossis PPA, muaj cov khoom zoo siab kub. Qee qhov no suav nrog Rislan lossis Zytel, uas yog cov khoom siv Xometry muab nrog nws cov kev pabcuam nrawm nrawm.

 

Cov qauv molecular ntawm polyamides tuaj yeem sib txawv heev, piv txwv li, aliphatic polyamides zoo li Nylon yog polymerized los ntawm monomers xws li caprolactam thiab hexamethylenediamine. Aromatic polyamides, ntawm qhov tod tes, yog polymerized los ntawm para-phenylenediamine thiab terephthaloyl chloride.

Polyamides muaj lub zog tensile siab. Lawv lub npe ib leeg hais txog ntau yam khoom sib txawv, qee qhov tuaj yeem ua rau hauv fibers, cam khwb cia, lossis txhaj tshuaj molded. Nylon 6, piv txwv li, yog aliphatic polyamide uas muaj lub zog tensile txog 40MPa. Kevlar 29 yog ib qho tshuaj tsw qab polyamide uas muaj lub zog tensile ntawm 3600 MPa. Qhov sib txawv no yog vim muaj ntau yam khoom siv hauv pawg polyamide.

 

2.Kev siv ntawm Polyamides

Nyob ntawm subcategory ntawm cov ntaub ntawv, txhua polyamide yuav muaj ntau yam kev siv thiab kev siv. Nov yog qee qhov piv txwv:

· Kevlar: Qhov no yog cov khoom nrov uas feem ntau woven rau hauv cov mos txwv vests thiab siv los txhawb cov log tsheb.

· Nomex: Vim nws cov khoom siv thermal ua haujlwm zoo, Nomex yog cov khoom siv rau kev ua haujlwm thiab hluav taws kub-resistant suits.

· Nylon: Ib qho khoom siv nrov heev thiab muaj ntau yam sib npaug, Nylon tuaj yeem spun rau hauv fiber ntau thiab txhaj tshuaj molded. Qee qhov piv txwv ntawm qhov twg Nylon yuav siv tau xws li iav log thiab hlua. Nws kuj yog ib qho ntawm feem ntau 3D cov ntaub ntawv luam tawm ntawm Xometry ntawm peb cov txheej txheem SLS thiab MJF uas feem ntau siv cov ntaub ntawv Nylon.

· Wool: Lwm qhov kev nyiam, ntaub plaub yog siv los tsim cov khaub ncaws, rooj tog zaum, ntaub pua plag, thiab lwm yam khoom siv hauv tsev.

 

3.Nylon yog dab tsi?

Nylon yog lub npe lag luam uas tau muab rau ib pawg ntawm aliphatic polyamides los ntawm lub tuam txhab tshuaj DuPont. Vim nws lub zog tensile siab, lub cev tawv, thiab hnav tsis kam, nws tau dhau los ua ib qho ntawm cov khoom siv hluav taws xob nrov tshaj plaws niaj hnub no thiab ib qho kev xaiv ntawm Xometry cov neeg siv khoom. Zoo li lwm yam thermoplastics, Nylon tuaj yeem yaj thiab tsim los ua cov khoom siv kub kub hauv cov txheej txheem xws li kev txhaj tshuaj molding, extrusion, thiab 3D luam ntawv raws li qhia hauv daim duab hauv qab no.

 

Muaj ntau qib ntawm nylon, qee qhov tuaj yeem tsim rau hauv cov ntaub. Tsis yog txhua qib sib koom tib cov qauv molecular thiab cov txheej txheem polymerization. Nylon feem ntau suav hais tias yog amorphous polymer, tab sis nws tuaj yeem muaj qib ntawm crystallinity. Aliphatic polyamides yog nrov tshaj li aromatic thiab semi-aromatic polyamides, thiab ntau hom nylon yog Nylon 6/6 thiab Nylon 6.

 

4.Composition thiab siv cov nylon

Nylon yog ib qho aliphatic polyamide uas tuaj yeem tsim los ntawm ntau yam ntaub ntawv thiab chemistry. Nylon 6 yog tsim los ntawm caprolactam, thaum Nylon 6/6 yog tsim los ntawm hexamethylene thiab diamine / adipic acid. Qee lwm hom nylon, txawm li cas los xij, zoo li Nylon 11, uas peb muab los ntawm kev xaiv laser sintering, tuaj yeem tsim los ntawm cov khoom siv txuas ntxiv xws li castor taum nroj tsuag los ntawm polymerizing undecanoic acid.

 

Cov txheej txheem lej rau nylon tuaj yeem pab nkag siab txog cov pa roj carbon atoms hauv txhua qhov reactant. Piv txwv li, Nylon 6/6 qhia tias muaj rau carbon atoms nyob rau hauv diamine thiab rau carbon atoms nyob rau hauv lub diacid, thaum Nylon 6 tsuas yog tsim los ntawm ib tug polymer uas muaj rau carbon atoms. Yog xav paub ntxiv txog cov ncauj lus no, xav mus saib peb phau ntawv qhia txog cov khoom ntawm nylon. Nylon yog ib qho ntawm cov khoom siv hluav taws xob muaj zog tshaj plaws hauv ntiaj teb. Ntxiv nrog rau nws lub siab lubricity, nws muaj lub zog tensile zoo thiab cuam tshuam lub zog. Nyob ntawm qib, nylon tuaj yeem muaj lub zog tensile ntawm 40 MPa thiab 90 MPa. Feem ntau siv hauv kev txhaj tshuaj molding, Nylon 6/6 muaj lub zog tensile ntawm 85 MPa. Lub zog tensile ntau dua tuaj yeem siv cov ntaub ntawv muab tub lim, xws li nrog peb cov iav ntim nylon xaiv, uas txhawb cov khoom siv thiab txhim kho lub zog.

 

Nylon yog siv zoo nkauj nyob txhua qhov chaw, los ntawm lub zog thiab hlua mus rau textiles thiab parachutes, ua tsaug rau nws hnav tsis kam, tensile zog, tshuaj tiv thaiv, thiab zoo zog-rau-hnyav piv. Qee cov neeg siv Xometry qhia txog kev xaiv cov nylon ua lwm txoj hauv kev rau cov hlau.

 

5.Qhov sib txawv ntawm Polyamides thiab Nylons

Yooj yim muab, nylons yog hom polyamide. Txawm hais tias lawv tsis tsim tag nrho cov chav kawm ntawm polymer, lawv yog cov nqi qis dua, yooj yim rau kev ua, thiab muaj qhov sib npaug zoo dua ntawm cov khoom piv rau cov ntxhiab tsw thiab semi-aromatic polyamides. Tsis zoo li aromatic polyamides, los yog aramids luv luv, uas muaj ntau dua thermal kuj thiab tensile lub zog, nylon yog cov feem ntau polyamide thiab yog dav siv nyob rau hauv ntau lub sectors.

 

6. Txog Peb

Luoyang Dema Ntshuam & Export Co., Ltd. aims muab high-zoo, nqi-zoo khoom rau lub ntiaj teb no factories, yas khoom manufacturers, thiab cov khoom distributors.Luoyang Dema Ntshuam & Export Co., Ltd. muab qhov zoo tshaj plaws PP, PE, PVC , AVE, ABS cov ntaub ntawv daws teeb meem rau cov khoom siv yas, cov khoom lag luam, cov khoom lag luam, cov khoom lag luam, cov tswv lag luam, cov chaw ua haujlwm, thiab lwm yam.

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