PA66 (polyamide 66 los yog nylon 66), PA66 siv ntau dua nyob rau hauv kev lag luam automotive, ntsuas vaj tse thiab lwm yam khoom uas yuav tsum muaj kev cuam tshuam thiab siab zog piv rau PA6.
PA66 tseem hu ua nylon 66; polyhexamethylene adipate; nylon 66, txheeb NY66.
Tshuaj formula: [-NH (CH2) 6-NHCO (CH2) 4CO] n-
Hnav Dawb lub hnab los yog xim daj
Ceev (g / cm3) 1.10-1.14
Tensile zog (MPa) 60. 0-80.0
Rockwell hardness 118
Qhov kev muaj zog (kJ / m2) 60-100
Kev sib thooj uas tuav static (MPa) 1 00-120
Martin Heat (° C) 50-60
Flexural modulus (MPa) 2000 ~ 3000
Volume resistivity (Ωcm) 1.83 × 1015
Dielectric qhov 1.63
Tshaj dawb los sis opaque milky dawb crystalline polymer nrog plasticity. Qhov ntom yog 1.15 g / cm3. Qhov kub ntawm 252 ° C. Lub caij sov sov yog -30 ° C. Lub thermal decomposition temperature siab tshaj 350 ° C. Cov kev kub hnyav mus ntev 80-120 ° C, dej nqus dej 2.5%. Nws yog resistant to acids, alkalis, feem ntau inorganic ntsev dlaws, halogenated alkanes, hydrocarbons, esters, ketones, etc., tab sis yog soluble nyob rau hauv cov hlab ntsha xws li ** thiab **. Nws muaj kev coj zoo heev, nws tus kheej lub lubricating thiab lub zog txhua yam. Txawm li cas los xij, dej haus yog qhov loj thiab qhov kev ruaj ntseg ntawm dimensional yog pluag.
Siv dav hlau, cov khoom siv ua hluav taws xob, cov khoom siv hluav taws xob thiab cov khoom hluav taws xob xws li lub zog, cov thawv ntawv, lub dav hlau, lub taub hau, cov kiv cua, lub siab ntsaws ruaj ruaj, cladding, thiab lwm yam. Nws kuj ua tau rau hauv ib zaj duab xis rau kev siv ua khoom ntim. Ntxiv mus, nws tuaj yeem siv tau los ua khoom **, khoom ua si, txhua yam khoom txhua hnub, thiab lwm yam.
