Vim li cas peb thiaj xaiv cov ntaub nylon?
Nylon yog thawj cov fiber tsim uas tau tshwm sim hauv ntiaj teb. Nws cov synthesis yog qhov kev tshawb pom loj hauv kev lag luam fiber tsim thiab yog ib qho tseem ceeb heev hauv polymer chemistry.
Cov txiaj ntsig ntawm cov ntaub nylon yog dab tsi?
1. Kev hnav tsis kam. Qhov kev hnav tsis kam ntawm nylon yog siab dua li ntawm lwm cov fibers, 10 npaug siab dua paj rwb thiab 20 npaug siab dua ntaub plaub. Ntxiv qee cov polyamide fibers rau hauv cov ntaub sib xyaw ua ke tuaj yeem txhim kho nws qhov kev hnav tsis kam; thaum ncab mus rau 3 Thaum -6%, qhov rov qab elastic tuaj yeem ncav cuag 100%; nws tuaj yeem tiv taus kaum txhiab zaus ntawm kev khoov yam tsis tawg.
2. tiv taus kub. Xws li nylon 46, thiab lwm yam, nylon crystalline siab muaj qhov kub siab hloov pauv kub thiab siv tau ntev ntawm 150 degrees. Tom qab PA66 tau txhawb nqa nrog cov iav fibers, nws qhov kub hloov pauv kub tuaj yeem ncav cuag ntau dua 250 degrees.
3. tiv taus corrosion. Nylon tiv taus alkali thiab feem ntau cov kua ntsev, kuj tiv taus cov kua qaub tsis muaj zog, roj cav, roj av, cov tshuaj tsw qab thiab cov kuab tshuaj dav dav, inert rau cov tshuaj tsw qab, tab sis tsis tiv taus cov kua qaub muaj zog thiab cov tshuaj oxidants. Nws tuaj yeem tiv taus kev yaig ntawm roj av, roj, rog, cawv, alkali tsis muaj zog, thiab lwm yam thiab muaj peev xwm tiv thaiv kev laus zoo.
4.Kev rwb thaiv tsev. Nylon muaj qhov tiv taus ntim siab thiab lub zog tawg siab. Hauv qhov chaw qhuav, nws tuaj yeem siv ua cov khoom siv rwb thaiv tsev fais fab, thiab nws tseem muaj kev rwb thaiv tsev zoo txawm tias nyob hauv qhov chaw noo noo ntau.
Lub sijhawm tshaj tawm: Lub Xya Hli-15-2023