PA66 GF25 Thermal Break Strips & Production Solutions

PA66, lossis Polyamide 66, yog ib qhov khoom siv tshuaj kom muaj zog, muaj kev nyab xeeb, thiab tiv thaiv kev txias thiab khem. Muab tsim los ntawm kev sib sau ua phau ntawv ntawm adipic acid thiab hexamethylenediamine, nws muaj lub chaw rov qab uas muaj amide groups uas pab tau rau kev sib xyaw zoo siab, txawj tshuam rau ib qho chaw muaj crystalline uas muaj qhov kub txias mus rau 260°C. Qhov no pab PA66 muaj tensile strength ntawm 80-90 MPa thiab notch impact strength uas tiv thaiv kev puav tseg hauv kev siv nyob rau hauv qhov chaw nyob hauv yam ntxwv zoo li cov khoom siv rau lub ruota, cov khoom sib cuag rau hluav taws xob, thiab cov khoom siv rau kev lag luam. Nws cov nyob deb ntawm kub muaj feem tshooj siv ntev mus rau 120°C thiab muaj thermal conductivity tsawg tshaj 0.25 W/m·K, yog li nws yog ib qhov zoo tshaj rau kev tiv thaiv kub rau hauv cov chaw tshuab tiv thaiv kub rau hauv kev tsim kho, uas pab tiv thaiv kev sib txig kub thiab pab txhim kho kev siv hluav taws xob hauv tsev neeg. Tab sis, PA66 yog ib qho khoom uas dawb dej, tuaj yeem dab tsi dej txog 2.5% nyob rau hauv qhov chaw muaj dej siab, uas tuaj yeem tshwm sim rau kev tsis nyab xeeb thiab kev hloov pauv ntawm qhov zog; vim li no, yuav tsum siv dej ntsuab ua ntej nyob rau 80°C rau 4-6 teev saum toj ua ntej khiav rau injection molding lossis extrusion. Lub khoom no kuj muaj kev tiv thaiv zoo tshaj rau kev rub thiab kev puav tseg, tab sis nws tuaj yeem hloov pauv nyob rau hauv UV yog tsis muaj stabilizers. Nyob rau hauv qhov kev nyab xeeb, PA66 tuaj yeem rov siv dua los ntawm kev siv tshuaj, tab sis qhov tsim kho nws yog ib qho kev siv ntau hluav taws xob, uas tshuaj xyuas kev tsim kho cov khoom siv los ntawm dej. Cov kev siv khoom feem ntau li cov zipper thiab cov khoom siv rau kev nthuav dav mus rau cov khoom tseem ceeb hauv aerospace, siv nws cov nyiaj tsuag thiab kev nyab xeeb. Cov standard tso tseg los ntawm lub neej tsev neeg li ISO 527-2 coj mus rau kev test, tiv thaiv kev raug zoo tib yam hauv tag nrho qhov chaw muag khoom. Cov kev tshiab hauv kev tsim kho additive thiab nanocomposites tau txhim kho kev siv nws, tshuv ntxiv PA66 rau ib qhov khoom tseem ceeb hauv kev tsim kho tam sim no, thaum tshwj xeeb tshuaj xyuas cov teeb meem hauv kev sib cuag nrog lub ntiaj teb los ntawm kev txhim kho kev siv nyob deb.