TF-MCA Melamine Cyanurate (MCA) mai hana harshen wuta mara halogen
Gabatarwa
Melamine Cyanurate (MCA) wani sinadari ne mai hana harshen wuta mai inganci wanda ba shi da halogen wanda ke ɗauke da sinadarin nitrogen. Ana amfani da shi sosai a masana'antar filastik a matsayin sinadari mai hana harshen wuta.
Bayan shan zafi na sublimation da kuma rugujewar zafin jiki mai yawa, MCA tana narkewa zuwa nitrogen, ruwa, carbon dioxide da sauran iskar gas waɗanda ke ɗauke da zafin amsawa don cimma manufar hana harshen wuta. Saboda yawan zafin da ke tattare da sublimation da kuma kyakkyawan kwanciyar hankali na zafi, ana iya amfani da MCA don yawancin sarrafa resin.
Ƙayyadewa
| Ƙayyadewa | TF- MCA-25 |
| Bayyanar | Foda fari |
| MCA | ≥99.5 |
| Abubuwan da ke cikin N (w/w) | ≥49% |
| Abubuwan da ke cikin MEL (w/w) | ≤0.1% |
| Sinanuric Acid (w/w) | ≤0.1% |
| Danshi (w/w) | ≤0.3% |
| Narkewa (25℃, g/100ml) | ≤0.05 |
| Darajar PH (1% dakatarwar ruwa, a 25ºC) | 5.0-7.5 |
| Girman ƙwayoyin cuta (µm) | D50≤6 |
| D97≤30 | |
| Farin fata | ≥95 |
| Zafin jiki na rugujewa | T99%≥300℃ |
| Tkashi 95%≥350℃ | |
| Guba da haɗarin muhalli | Babu |
Halaye
MCA na'urar rage harshen wuta ce mai matuƙar tasiri saboda yawan sinadarin nitrogen da ke cikinta, wanda hakan ya sa ta zama kyakkyawan zaɓi ga kayan da ke buƙatar ƙarancin ƙonewa. Daidaiton zafinsa, tare da ƙarancin gubarsa, ya sa ya zama sanannen madadin sauran na'urorin rage harshen wuta da ake amfani da su kamar mahaɗan brominated. Bugu da ƙari, MCA ba ta da arha kuma mai sauƙin ƙera ta, wanda hakan ya sa ta zama zaɓi mai araha ga manyan aikace-aikace.
Aikace-aikace
Ana amfani da MCA a matsayin maganin hana harshen wuta a cikin nau'ikan kayayyaki daban-daban, ciki har da polyamides, polyurethanes, polyester, da kuma resin epoxy. Yana da amfani musamman a fannin injiniyan robobi, waɗanda ke buƙatar aikin zafi mai yawa da ƙarancin ƙonewa. Haka kuma ana iya amfani da MCA a cikin yadi, fenti, da shafi don inganta juriyar harshen wuta. A masana'antar gini, ana iya ƙara MCA a cikin kayan gini kamar rufin kumfa don rage yaɗuwar wuta.
Baya ga amfani da shi a matsayin maganin hana wuta, MCA yana da wasu aikace-aikace. Ana iya amfani da shi a matsayin maganin warkarwa ga epoxies, kuma an nuna cewa yana da tasiri wajen rage yawan hayakin da ake fitarwa yayin gobara, wanda hakan ya sanya shi wani muhimmin sashi a cikin kayan hana wuta.
| D50（μm) | D97（μm) | Aikace-aikace |
| ≤6 | ≤30 | PA6, PA66, PBT, PET, EP da sauransu. |
