Nylon PA66 GF25 rau qhov chaw tshuab sov | Vaj huaim ntaj hlau thiab kev kho

Nylon PA 66, uas tseem muaj lub npe hu ua Polyamide 66, yog ib qhov siv zog siab thiab tshuaj siv rau kev tsim kho zog uas muaj luj ceev nyob rau hauv kev pab txhim kho, kev nyab xeeb rau kawm ntawv kho mob, thiab kev txaus siab rau yoj yim. Nws tau tsim los los ntawm kev sib faus ntawm hexamethylenediamine thiab adipic acid, txav mus rau ib qhov polymer muaj duab ntsiag tug uas muaj cov chaw nruj amide uas pab rau nws muaj kev sib xyaw siab hauv hydrogen bonding. Qhov kev txiav txim no pab nws muaj zog siab, feem ntau nyob rau hauv qhov 80 mus rau 90 MPa, thiab muaj qhov tshaj tawg uas pab nws tuaj yooj siv rau cov khoom siv zog. Nyob rau hauv qhov melting point ntawm li 260°C, PA 66 tuaj yeem tiv thaiv kev sib tham nrog teeb liab siab txog 120°C, yog li nws zoo rau siv rau cov khoom tshwj xeej hauv tsev neeg xov tooj xwm, xws li cov avtog tom qab rooj khaub ncaws thiab cov khoom sib sau. Nws muaj qhov thermal conductivity tsuas li 0.25 W/m·K, uas pab nws zoo rau siv rau cov khoom tiv thaiv kub, xws li cov chaw tiv thaiv kub hauv kev tsim kho, uas pab kom tsis sov dua thiab pab ntxiv kev nyab xeeb rau kev siv ntaub. Tab sis, PA 66 muaj kev nyob siab rau dej, nws tuaj yeem rub dej los ntawm dej ntsuab, uas tuaj yeem cuam tshuam rau qhov hluav taws xob thiab kev txo zog yog tias tsis tau siv dej saum toj ua ntej. Cov kev txhim kho xws li injection molding thiab extrusion feem ntau siv, thiab yuav tsum siv dej saum toj nyob rau 80°C rau 4-6 teev mus kom tiv thaiv kev phom sij. Tom qab ntawv, PA 66 muaj kev nyab xeeb rau kev sib tshuam thiab kev nyab xeeb rau kev sib tshuam, tab sis nws yuav tsum tau muaj cov khoom pab rau UV stability rau cov siv nyob saum tog. Nws muaj kev sib txawv mus rau cov tsoom fwv xws li khoom lag luam, uas siv nws rau cov roj hmab thiab cov khoom nruj, thiab rau cov khoom siv hauv avtog tom qab rooj khaub ncaws rau cov khoom nyob ruaj khov. Cov ntaub ntawv tshwj xeej rau dej num yog kev recyclability, tab sis kev puas tsuaj tuaj yeem tshwm sim thaum siv ntau hnub saum tog, uas yuav tsum tau muaj cov khoom pab stabilizers. Txhua yam, PA 66 muaj kev sib piv zoo ntawm kev tsim kho thiab kev siv zog, pab nws zoo rau kev siv rau cov kev tsim kho tshaj tawg, thaum nws tiv thaiv rau cov standard sab nraud xws li ISO 1874-1 rau kev daws tshuaj.