Cov ntaub ntawv tseem ceeb ntawm meta-aramid yog isophthaloyl chloride (IPC) thiab meta-phenylenediamine (MPD).
Meta-aramid yog qhov loj hlob sai tshaj plaws-thev naus laus zis organic fiber ntau. Nws muaj thermal stability zoo, nplaim taws rov qab, hluav taws xob rwb thaiv tsev, tshuaj lom neeg ruaj khov thiab tiv taus hluav taws xob. Dav siv dav hauv dav hlau, tsheb ciav hlau ceev, tua hluav taws khaub ncaws, thiab lwm yam. Kev cob qhia khaub ncaws, ntsuas cua sov, tiv thaiv huab cua ib puag ncig, tiv taus cov khoom lag luam kub-tiv taus, hoses tsheb, suab nrov dhau, rwb thaiv tsev hluav taws xob thiab lwm yam haujlwm tseem ceeb.
Cov yam ntxwv tseem ceeb
1. Cov cua sov ruaj khov: Cov yam ntxwv tseem ceeb tshaj plaws ntawm aramid fiber ntau yog thermal stability ntev. Nws tuaj yeem siv tau ntev ntawm qhov kub siab ntawm 204 ° C thiab muaj kev ruaj ntseg zoo heev. Nws yuav tsis ua nkig, muag muag lossis yaj thaum raug kub txog 300 ° C rau lub sijhawm luv.
2. Cov nplaim hluav taws kub: Meta-aramid fiber ntau LOI oxygen index ≥ 28, yog ib yam ntawm cov nplaim hluav taws kub nyhiab uas tsis kub hnyiab, kub hnyiab, txhawb kev hlawv, thiab tua tus kheej hauv cov pa. .Qhov pib kub ntawm carbonization yog 400 ° C.
3. Kev tiv thaiv hluav taws xob: Meta-aramid muaj cov rwb thaiv hluav taws xob zoo heev, thiab cov ntawv ua insulating tuaj yeem tiv taus qhov hluav taws xob tawg mus txog 20kv/mm.
4. Tshuaj ruaj khov: Cov qauv tshuaj ntawm meta-aramid ruaj khov heev, tiv taus feem ntau cov tshuaj inorganic siab, thiab muaj alkali tiv taus zoo ntawm chav sov.
5. Kev tiv thaiv hluav taws xob: Meta-aramid muaj zog tiv taus β, α thiab X-ray hluav taws xob.