nplaim retardant mechanism ntawm Melamine Cyanurate

Melamine Cyanurate(MCA) yog ib qho khoom siv hluav taws xob zoo ib puag ncig, dav siv hauv cov khoom siv polymer xws li polyamide (Nylon, PA-6 / PA-66), epoxy resin, polyurethane, polystyrene, polyester (PET, PBT), polyolefin thiab halogen- dawb hlau thiab cable. Nws cov nplaim nplaim retardant zoo heev, tsis tshua muaj toxicity thiab zoo thermal stability tau ua rau nws muaj kev txhawj xeeb thiab siv rau hauv kev lag luam hluav taws xob, tsheb thiab kev tsim kho.

Melamine Cyanurate yog ib qho chaw tsim los ntawm cov tshuaj tiv thaiv ntawm Melamine thiab cyanuric acid. Cov qauv molecular lattice tsim los ntawm hydrogen bonding muaj cov nplua nuj nitrogen. Qhov no tso cai rau Melamine Cyanurate tso tawm ib qho nyiaj ntawm nitrogen ntawm qhov kub thiab txias, yog li inhibiting kev sib kis ntawm nplaim taws. Nws cov qauv tshuaj txiav txim siab tias nws muaj qhov zoo thermal stability, txhua yam muaj zog thiab cov nplaim hluav taws zoo heev.

Tsis tas li ntawd, MCA tsis muaj teeb meem halogen cov ntsiab lus, yog li nws tau siv dav hauv ntau lub sijhawm nrog kev xav tau ntawm ib puag ncig thiab kev noj qab haus huv, tshwj xeeb tshaj yog cov khoom siv hauv tsev, cov khoom siv hauv tsev thiab textiles.

 

nplaim retardant mechanism ntawm Melamine Cyanurate

Cov nplaim hluav taws kub nyhiab ntawm Melamine Cyanurate feem ntau yog tshwm sim hauv nws cov yam ntxwv decomposition ntawm qhov kub thiab txias thiab inhibitory nyhuv ntawm cov txheej txheem carbon ntawm nplaim hluav taws. Tshwj xeeb, cov nplaim hluav taws kub nyhiab ntawm MCA tuaj yeem txheeb xyuas los ntawm cov hauv qab no:

(1) Tso cov nitrogen los inhibit oxygen mov

MCA molecules muaj ntau cov ntsiab lus nitrogen. Thaum cov txheej txheem cua sov, cov ntsiab lus nitrogen yuav raug tso tawm los ua cov pa roj (feem ntau yog cov roj nitrogen). Nitrogen roj nws tus kheej tsis txhawb combustion, yog li nws tuaj yeem ua tau zoo dilute cov pa oxygen nyob ib puag ncig ntawm qhov hluav taws kub, txo qhov kub ntawm cov nplaim taws, thiab yog li ua kom qis qis qis thiab cuam tshuam kev sib kis ntawm combustion. Cov txheej txheem no tseem ceeb heev rau kev txhim kho cov nplaim hluav taws xob ntawm cov khoom siv, tshwj xeeb tshaj yog nyob rau hauv qhov kub thiab txias.

(2) Txhawb kev tsim cov txheej txheem carbonized

Thaum lub sij hawm pyrolysis txheej txheem, MCA yuav decompose thiab tsim ib txheej carbonized thaum thermal decomposition. Cov txheej inert carbonized no muaj cov thermal rwb thaiv tsev zoo heev thiab tuaj yeem tsim ib qho kev thaiv ntawm qhov chaw kub hnyiab thiab qhov chaw tsis muaj hluav taws kub, tiv thaiv kev hloov hluav taws xob thiab txwv kev sib kis ntawm cov nplaim taws.

Tsis tas li ntawd, cov txheej txheem carbonized tseem tuaj yeem cais cov pa oxygen hauv huab cua, tsim cov txheej txheem tiv thaiv lub cev, txo qis kev sib cuag ntawm oxygen nrog cov khoom siv hluav taws xob, yog li tiv thaiv kev sib tsoo zoo. Qhov tsim thiab ruaj khov ntawm cov txheej carbonized no yog tus yuam sij rau seb MCA tuaj yeem ua lub luag haujlwm zoo li nplaim taws.

(3) Cov tshuaj tiv thaiv ua rau dej vapor

Nyob rau hauv ib puag ncig kub kub, MCA yuav dhau los ua cov tshuaj tiv thaiv decomposition thiab tso tawm qee qhov dej vapor. Dej vapor tuaj yeem txo qhov kub hauv zos thiab tshem tawm cov cua sov los ntawm evaporation, yog li txias qhov hluav taws kub. Tsis tas li ntawd, kev tsim cov dej vapor kuj tuaj yeem txo qhov concentration ntawm oxygen nyob ib ncig ntawm qhov hluav taws kub, tiv thaiv kom tsis txhob muaj hluav taws kub.

(4) Synergistic nyhuv nrog lwm yam additives

Ntxiv nrog rau nws tus kheej cov nplaim hluav taws kub nyhiab, Melamine Cyanurate kuj tseem tuaj yeem sib koom ua ke nrog lwm cov nplaim hluav taws kub hnyiab los yog muab tso rau txhawm rau txhim kho cov nplaim hluav taws xob tag nrho ntawm cov khoom. Piv txwv li, MCA feem ntau yog siv ua ke nrog phosphorus nplaim retardants, inorganic fillers, thiab lwm yam., uas tuaj yeem txhim kho cov thermal stability thiab mechanical zog ntawm cov khoom thiab ua rau cov nplaim hluav taws kub retardant ntau dua.

 

Qhov zoo thiab kev siv ntawm Melamine Cyanurate

(1) Ib puag ncig tus phooj ywg thiab tsis muaj tshuaj lom

Piv nrog cov tshuaj halogen nplaim retardants, MCA tsis tso cov pa phem halogen (xws li hydrogen chloride, hydrogen bromide, thiab lwm yam) thaum lub sij hawm cov txheej txheem nplaim hluav taws, txo cov pa phem rau ib puag ncig thiab muaj peev xwm ua rau tib neeg noj qab haus huv. Cov txheej txheem tso tawm nitrogen ntawm MCA kuj muaj kev nyab xeeb, yog li nws muaj kev nyab xeeb ntau dua thaum siv thiab tsis muaj kev cuam tshuam rau ecological ib puag ncig.

(2) Zoo thermal stability thiab huab cua tsis kam

MCA muaj cov thermal stability siab, tuaj yeem tswj cov khoom siv tshuaj lom neeg ruaj khov ntawm qhov kub thiab txias, thiab tiv thaiv kev sib tsoo los ntawm qhov kub thiab txias. Hauv qee qhov chaw ua haujlwm kub kub, MCA tuaj yeem muab kev tiv thaiv ntev ntev raws li cov nplaim hluav taws.

Tsis tas li ntawd, MCA kuj tseem muaj zog tiv thaiv huab cua, tuaj yeem ua haujlwm tau zoo hauv kev siv mus ntev, thiab hloov mus rau qhov sib txawv ntawm huab cua.

(3) Cov pa luam yeeb tsawg

MCA tsim cov pa luam yeeb tsawg dua thaum tshav kub kub. Piv nrog cov tsoos halogen nplaim taws retardants, nws tuaj yeem txo qhov tso pa tawm ntawm cov pa phem hauv hluav taws thiab txo cov pa luam yeeb rau cov neeg ua haujlwm.

 

Raws li ib puag ncig tus phooj ywg thiab tsis muaj tshuaj lomnplaim retardant, Melamine Cyanurate muaj cov nplaim hluav taws xob tshwj xeeb uas qhia tau hais tias muaj ntau yam kev thov rau cov khoom siv niaj hnub no. Nrog rau kev txhim kho txuas ntxiv ntawm kev tiv thaiv ib puag ncig thiab kev nyab xeeb, Melamine Cyanurate yuav siv ntau thaj chaw thiab dhau los ua ib qho tseem ceeb ntawm cov khoom siv hluav taws xob.

 

Yog xav paub ntxiv txog yuav ua li cas xaiv MCA uas yog rau koj, thov mus saib kuv tsab xov xwm "Yuav Ua Li Cas Xaiv Zoo Melamine Cyanurate?"Kuv vam tias nws yuav pab tau koj.