Melamine Cyanurate (MCA) waa hufnaan sare oo halogen-free ololka deegaanka oo ka kooban nitrogen.Waxaa si weyn loogu isticmaalaa warshadaha balaastigga sida ololka.
Ka dib nuugista kulaylka sublimation iyo burburka heerkulka sare, MCA waxay u jajabisaa nitrogen, biyaha, carbon dioxide iyo gaas kale kuwaas oo ka qaada kulaylka falcelinta si loo gaaro ujeedada ololka.Sababtoo ah heerkulka kala-goynta sare ee sare iyo xasilloonida kulaylka wanaagsan, MCA waxaa loo isticmaali karaa inta badan farsamaynta resin.
Tilmaamid | TF- MCA-25 |
Muuqashada | budo cad |
MCA | ≥99.5 |
N ka kooban (w/w) | ≥49% |
Waxa ku jira MEL (w/w) | ≤0.1% |
Cyanuric acid (w/w) | ≤0.1% |
Qoyaanka (w/w) | ≤0.3% |
Solubility (25℃, g/100ml) | ≤0.05 |
Qiimaha PH (1% ganaax biyo ah, oo ah 25ºC) | 5.0-7.5 |
Cabbirka walxaha (µm) | D50≤6 |
D97≤30 | |
Caddaanka | ≥95 |
Heerkulka burburka | T99%≥300℃ |
T95%≥350℃ | |
Sunta iyo khataraha deegaanka | Midna |
MCA waa dabcelis aad waxtar u leh sababtoo ah waxa ku jira nitrogen oo sarreeya, taas oo ka dhigaysa doorasho aad u fiican alaabta u baahan dabci yar.Deganaanshaheeda kuleylkeeda, oo ay weheliso sunteeda hoose, waxay ka dhigtaa beddel caan ah oo ka duwan kuwa kale ee sida caadiga ah loo isticmaalo ololka sida xeryahooda brominated.Intaa waxaa dheer, MCA waa mid raqiis ah oo sahlan in la soo saaro, taasoo ka dhigaysa doorasho dhaqaale oo loogu talagalay codsiyada baaxadda leh.
MCA waxa loo isticmaalaa dabcelis ahaan agabyo kala duwan, oo ay ku jiraan polyamides, polyurethane, polyester, iyo resins epoxy.Waxay si gaar ah faa'iido u leedahay balaastikada injineernimada, kuwaas oo u baahan waxqabadka heerkulka sare iyo ololka hooseeya.MCA waxa kale oo loo isticmaali karaa dunta, rinjiga, iyo dahaarka si loo hagaajiyo caabbinta ololka.Warshadaha dhismaha, MCA waxaa lagu dari karaa qalabka dhismaha sida dahaarka xumbo si loo yareeyo fiditaanka dabka.
Marka lagu daro isticmaalkeeda dab-demiska, MCA waxay leedahay codsiyo kale sidoo kale.Waxa loo isticmaali karaa sidii daawaynta epoxies, waxaana la muujiyay in ay waxtar u leedahay yaraynta xadiga qiiqa ee la sii daayo inta lagu jiro dabka, taas oo ka dhigaysa qayb qiimo leh oo ka mid ah walxaha dab-demiska.
D50(μm) | D97(μm) | Codsiga |
≤6 | ≤30 | PA6, PA66, PBT, PET, EP iwm. |