Indlela yokubuyiswa komlilo ye-Melamine Cyanurate

I-Melamine Cynurate(MCA) iyisinqamuleli somlilo esivumela imvelo, sisetshenziswa kabanzi ezintweni ze-polymer ezifana ne-polyamide (Nylon, PA-6/PA-66), i-epoxy resin, i-polyurethane, i-polystyrene, i-polyester (i-PET, i-PBT), i-polyolefin ne-halogen- intambo yamahhala nekhebula. Izakhiwo zayo ezinhle kakhulu zokunqanda amalangabi, ubuthi obuphansi kanye nokuzinza okuhle kokushisa kuyenze yakhathazeka kakhulu futhi yasetshenziswa emkhakheni wezogesi, izimoto nezokwakha.

I-Melamine Cyanurate iyinhlanganisela ekhiqizwa ukusabela kwe-Melamine ne-cyanuric acid. Isakhiwo se-lattice yamangqamuzana esakhiwe yi-hydrogen bonding siqukethe izakhi ze-nitrogen ezinothile. Lokhu kuvumela i-Melamine Cyanrate ukuthi ikhiphe inani elithile le-nitrogen emazingeni okushisa aphezulu, ngaleyo ndlela ivimbele ukusabalala kwamalangabi. Isakhiwo sayo samakhemikhali sinquma ukuthi sinokuzinza okuhle kokushisa, amandla emishini kanye nomphumela omuhle kakhulu wokunqanda ilangabi.

Ngaphezu kwalokho, i-MCA ayinazo izakhi ze-halogen eziyingozi, ngakho-ke isetshenziswe kabanzi ezikhathini eziningi ezinezidingo eziphezulu zemvelo nempilo, ikakhulukazi ezintweni zasendlini, izinto zokwakha kanye nezindwangu.

 

Indlela yokubuyiswa komlilo ye-Melamine Cyanurate

I-melamine Cynurate ye-melamine retardant mechanism ibonakala ikakhulukazi ezicini zayo zokubola emazingeni okushisa aphezulu kanye nomphumela ovimbelayo wengqimba yekhabhoni eyakhiwe ekusakazeni ilangabi. Ngokucacile, umphumela we-MCA we-flame retardant ungahlaziywa kusukela kulezi zici ezilandelayo:

(1) Ukukhishwa kwe-nitrogen ukuze kuvinjwe ukutholakala komoyampilo

Ama-molecule e-MCA aqukethe inani elikhulu lezakhi ze-nitrogen. Phakathi nenqubo yokushisisa, izakhi ze-nitrogen zizokhishwa ukuze zakhe igesi (ikakhulukazi igesi ye-nitrogen). Igesi ye-nitrogen ngokwayo ayikusekeli ukuvutha, ngakho inganciphisa ngokuphumelelayo ukuhlushwa komoya-mpilo eduze komthombo womlilo, inciphise izinga lokushisa lomlilo, futhi ngaleyo ndlela ibambezele izinga lokuvutha futhi ivimbele ukusabalala kokuvutha. Le nqubo ibalulekile ekuthuthukiseni izakhiwo ezivimbela amalangabi, ikakhulukazi ngaphansi kwezimo zokushisa eziphezulu.

(2) Thuthukisa ukwakheka kwesendlalelo se-carbonized

Phakathi nenqubo ye-pyrolysis, i-MCA izobola futhi ikhiqize isendlalelo se-carbonized ngesikhathi sokubola okushisayo. Lolu ngqimba olune-carbonized inert lunezinto ezinhle kakhulu zokuvikela ukushisa futhi lungakha umgoqo phakathi kwendawo evuthayo nendawo engashiswanga, luvimbele ukudluliswa kokushisa futhi lunciphise ukusakazeka kwelangabi.

Ngaphezu kwalokho, ungqimba lwe-carbonized lungakwazi futhi ukuhlukanisa umoya-mpilo emoyeni, lwenza isendlalelo sokuzivikela ngokomzimba, sinciphise nakakhulu ukuthintana komoya-mpilo nezinto ezivuthayo, ngaleyo ndlela kuvimbele ngokuphumelelayo ukuvutha. Ukwakheka nokuzinza kwalesi singqimba se-carbonized kuyisihluthulelo sokuthi ingabe i-MCA ingadlala indima ngokuphumelelayo njengesinqamuleli somlilo.

(3) Ukusabela kwamakhemikhali kukhiqiza umhwamuko wamanzi

Ngaphansi kwezinga lokushisa eliphezulu, i-MCA izobhekana nokusabela kokubola futhi ikhulule inani elithile lomhwamuko wamanzi. Umhwamuko unganciphisa ngempumelelo izinga lokushisa lendawo futhi ususe ukushisa ngokuhwamuka, ngaleyo ndlela upholise umthombo womlilo. Ngaphezu kwalokho, ukwakheka komhwamuko wamanzi nakho kunganciphisa ukugcwala komoyampilo ezungeze umthombo womlilo, kuvimbele nakakhulu ukusakazeka kwamalangabi.

(4) Umphumela we-Synergistic nezinye izithasiselo

Ngokungeziwe kumphumela wayo we-flame retardant, i-Melamine Cyanurate ingabuye ihambisane nezinye izinto ezibuyisela amalangabi noma izigcwalisi ukuze kuthuthukiswe izakhiwo ezibushela ilangabi zento. Isibonelo, i-MCA ivame ukusetshenziswa ngokuhlanganiswa nama-phosphorus flame retardants, ama-inorganic fillers, njll., okungathuthukisa ukuqina okushisayo kanye nezakhiwo zemishini zento futhi ibe nomthelela obanzi wokubuyiswa komlilo.

 

Izinzuzo kanye nezicelo ze-Melamine Cynurate

(1) Ayinobungane futhi ayinabo ubuthi

Uma kuqhathaniswa nama-halogen flame retardants, i-MCA ayikhiphi amagesi e-halogen ayingozi (afana ne-hydrogen chloride, i-hydrogen bromide, njll.) phakathi nenqubo ye-flame retardant, enciphisa ukungcoliswa kwemvelo kanye nokulimala okungaba khona empilweni yomuntu. Inqubo yokukhishwa kwe-nitrogen ye-MCA iphephile uma kuqhathaniswa, ngakho-ke ihambisana kakhulu nemvelo ngesikhathi sokusetshenziswa futhi inomthelela omncane endaweni ezungezile.

(2) Ukuzinza okuhle kokushisa nokumelana nesimo sezulu

I-MCA inokuqina okuphezulu kwe-thermal, ingagcina izakhiwo zamakhemikhali ezinzile emazingeni okushisa aphezulu, futhi ivimbele ngokuphumelelayo ukusha okubangelwa ukushisa okuphezulu. Kwezinye izindawo zokusebenza ezinezinga eliphezulu lokushisa, i-MCA inganikeza ukuvikeleka okuhlala isikhathi eside njengesinqamuleli somlilo.

Ngaphezu kwalokho, i-MCA nayo inokumelana nesimo sezulu esiqinile, ingagcina ukusebenza kahle ekusetshenzisweni kwesikhathi eside, futhi ivumelane nezimo zezulu ezahlukene.

(3) Intuthu ephansi

I-MCA ikhiqiza intuthu encane uma ishiselwa kumazinga okushisa aphezulu. Uma kuqhathaniswa nama-halogen flame retardants, kunganciphisa kakhulu ukukhishwa kwamagesi anobuthi emlilweni futhi kunciphise ukulimala kwentuthu kubasebenzi.

 

Njengobungani bemvelo futhi non-toxici-flame retardant, I-Melamine Cyanurate inomshini oyingqayizivele we-flame retardant obonisa amathemba amaningi okusebenza ezintweni zanamuhla. Ngokuthuthukiswa okuqhubekayo kokuvikelwa kwemvelo kanye nezidingo zokuphepha, i-Melamine Cynurate izosetshenziswa emikhakheni eminingi futhi ibe enye yezingxenye eziyinhloko zezinto ezivimbela ilangabi.

 

Ukuze uthole ulwazi olwengeziwe mayelana nendlela yokukhetha i-MCA ekulungele, sicela ubheke isihloko sami "Ungayikhetha Kanjani Ikhwalithi Enhle I-Melamine Cyanrate?"Ngiyethemba kuzoba usizo kuwe.