I-Flame Retardant Mechanism of Melamine Cyanirate

I-Melamine Cyanurate(I-MCA) iyinhlangano evame ukusetshenziswa yi-Flame Retame yemvelo esetshenziswayo, esetshenziswe kabanzi ezindaweni ezifana ne-polmeride (nylon, pa-66), i-polyerester (pet, pbt), i-polyolefing ne-halogen-free wire nentambo. Izakhiwo zayo ezihle kakhulu ze-Flame Retardant, ubuthi obuphansi kanye nokuqina okuhle okushisayo kwenze kwathinteka kabanzi futhi kusetshenziswe emasimini ama-elekthronikhi, izimoto nokwakha.

I-Melamine Cyanurate iyindawo ekhiqizwa ukusabela kwe-melamine ne-cyanuric acid. Isakhiwo se-molecular lattice esakhiwe nge-hydrogen bonding siqukethe izinto ezicebile ze-nitrogen. Lokhu kuvumela i-melamine ckuranute ukukhipha inani elithile le-nitrogen emazingeni okushisa aphezulu, ngaleyo ndlela kuvimbela ukusakazeka kwamalangabi. Isakhiwo saso samakhemikhali sinquma ukuthi sinokuqina okuhle okushisayo, amandla emishini kanye nomphumela omuhle kakhulu welangabi.

Ngaphezu kwalokho, i-MCA ayiqukethe izinto eziyingozi ze-halogen, ngakho-ke isetshenziswe kabanzi ngezikhathi eziningi ngezidingo eziphezulu zemvelo nezempilo, ikakhulukazi ezintweni zasendlini, izinto zokwakha kanye nezindwangu.

 

I-Flame Retardant Mechanism of Melamine Cyanirate

Indlela ye-Flame Retardant of Melamine Cyanirate iboniswa ikakhulukazi ezifweni zayo zokubola ezikhundleni eziphakeme zokushisa okuphezulu kanye nomphumela wokuvimbela inhibitory yesendlalelo sekhabhoni esakhiwe nge-flame. Ngokukhethekile, umphumela we-flame retardant we-MCA angahlaziywa ezintweni ezilandelayo:

(1) Ukukhishwa kwe-nitrogen ukuvimbela ukunikezwa komoya-mpilo

Amamolekyuli e-MCA aqukethe inani elikhulu lezinto ze-nitrogen. Ngesikhathi senqubo yokushisa, izakhi ze-nitrogen zizokhishwa ukwakha igesi (ikakhulukazi i-nitrogen gas). I-nitrogen igesi ngokwayo ayisekeli ukuhlanganiswa, ngakho-ke ingakufaka ngempumelelo i-oksijini yokuhlushwa komthombo womlilo, yehlise izinga lokushisa lelangabi, futhi ngaleyo ndlela linciphise izinga lokuvuthayo bese livimbela ukusakazeka kokuhlangana. Le nqubo ibalulekile ekuthuthukiseni izakhiwo ze-Flame Retardant of the okuqukethwe, ikakhulukazi ngaphansi kwezimo zokushisa eziphakeme.

(2) akhuthaze ukwakheka kwesendlalelo se-carbonised

Ngesikhathi senqubo ye-pyrolysis, i-MCA izobola futhi ikhiqize ungqimba lwe-carbonised ngesikhathi sokubola okushisayo. Lokhu i-inert carbonised arler inezakhiwo ezinhle kakhulu zokufakwa okushisayo futhi kungadala umgoqo phakathi kwendawo evuthayo nendawo yokushiswa, ukuvimba ukudluliswa kokushisa futhi kunciphise ukusakazwa kwelangabi.

Ngaphezu kwalokho, ungqimba lwe-carbonised lungahlukanisa umoya-mpilo emoyeni, wakhe ungqimba lokuzivikela ngokomzimba, uphinde unciphise ukuxhumana komoya-mpilo ngama-combustible, ngaleyo ndlela ukuvimbela ukuhlanganiswa. Ukwakheka kanye nokuqina kwalesi sandla se-carbonised kuyisihluthulelo sokuthi i-MCA ingadlala ngempumelelo indima njengelangabi lokubuyiselwa kwelanga.

(3) Ukusabela kwamakhemikhali kukhiqiza umphunga wamanzi

Ngaphansi kwendawo yokushisa ephakeme, i-MCA izosabela ngokuwohloka futhi ikhulule inani elithile le-vapor lamanzi. Umphunga wamanzi anganciphisa ngempumelelo amazinga okushisa endawo futhi asuse ukushisa ngokuhwamuka, ngaleyo ndlela apholise umthombo womlilo. Ngaphezu kwalokho, ukwakheka komoya wamanzi kunganciphisa futhi ukugcwala komoya-mpilo ozungeze umthombo womlilo, kuvinjelwe ukusakazeka kwamalangabi.

(4) Umphumela we-Synergistic nezinye izengezo

Ngaphezu komphumela wayo we-flame retardant, i-cyanurate ye-melamine ingahle futhi i-synergize nezinye izimbumbulu zamalangabi noma ama-filler ukuthuthukisa izakhiwo ze-flame retardant ezibonakalayo ezibonakalayo. Isibonelo, i-MCA ivame ukusetshenziswa ngokuhlanganiswa ne-phosphorus flame retadants, ama-filler we-inorganic, njll.

 

Izinzuzo kanye nokusetshenziswa kwe-cyanurate ye-melamine

(1) enobungane bemvelo futhi abanobuthi

Uma kuqhathaniswa ne-talogen ye-talogen yendabuko ye-talogen, i-MCA ayikhiphi amagesi ama-halogen ayingozi (njenge-hydrogen chloride, i-hydrogen bromide, njll.) Ngesikhathi senqubo yeFlame Retardant, ukunciphisa ukungcoliswa kwemvelo kanye nokulimala okungenzeka kwempilo yabantu. Inqubo yokukhishwa kwe-nitrogen ye-MCA iphephile ngokulinganayo, ngakho-ke inobungane kakhulu ngesikhathi sokusetshenziswa futhi inomthelela omncane endaweni yemvelo.

(2) Ukuqina okuhle okushisayo kanye nokumelana nesimo sezulu

I-MCA inokuqina okuphezulu okushisayo, ingagcina izakhiwo zamakhemikhali ezinzile eziteshini eziphakeme, futhi ivimbele ngempumelelo ukuhlanganiswa okubangelwa amazinga okushisa aphezulu. Kwezinye izindawo ezisebenzayo zokushisa okuphezulu, i-MCA inganikeza ukuvikela okuhlala isikhathi eside njenge-flame retardant.

Ngaphezu kwalokho, i-MCA ibuye ibe nokumelana kwesimo sezulu okuqinile, ingagcina ukusebenza kahle ekusetshenzisweni kwesikhathi eside, futhi ivumelane nezimo ezihlukile zesimo sezulu.

(3) intuthu ephansi

I-MCA ikhiqiza intuthu encane lapho ifudunyezwa emazingeni okushisa aphezulu. Uma kuqhathaniswa ne-talogen yendabuko yamalangabi, kunganciphisa kakhulu ukukhishwa kwamagesi anobuthi emililweni futhi kunciphise ukulimala kwentuthu kubasebenzi.

 

Njengomngane wemvelo futhi ungenzi ubuthiI-Flame Retardant, I-Melamine Cyanurate inendlela ehlukile ye-Flame Retardant Mechanism ekhombisa amathemba ahlukahlukene wesicelo ezintweni zesimanje. Ngokwenza ngcono okuqhubekayo kwezidingo zemvelo nokuphepha, i-cyanurate ye-melamine izosetshenziswa emasimini amaningi futhi ibe ngenye yezingxenye eziyinhloko zezinto zokwakha amalangabi.

 

Ngeminye imininingwane yokuthi ungayikhetha kanjani i-MCA ekulungele, sicela ubheke esihlokweni sami "Ungayikhetha kanjani i-cyanurate enhle ye-melamine?"Ngiyathemba ukuthi kuzokusiza.