Indlela yokubuyiswa komlilo yeMelamine Cyanurate

I-Melamine Cynurate(MCA) yinto eqhelekileyo esetyenziswa ngokusingqongileyo idangatye, isetyenziswa ngokubanzi kwizinto zepolymer ezifana nepolyamide (Nayiloni, i-PA-6/PA-66), i-epoxy resin, i-polyurethane, i-polystyrene, i-polyester (i-PET, i-PBT), i-polyolefin kunye ne-halogen- ucingo lwasimahla kunye nentambo. Iimpawu zayo ezigqwesileyo zokubuyiswa komlilo, ubuthi obuphantsi kunye nokuzinza okuhle kwe-thermal zenze ukuba zixhalabe ngokubanzi kwaye zisetyenziswe kwiinkalo ze-electronics, iimoto kunye nokwakhiwa.

I-Melamine Cyanurate yikhompawundi eveliswa yi-reaction ye-Melamine kunye ne-cyanuric acid. I-molecular lattice structure eyenziwe yi-hydrogen bonding iqulethe izinto ezityebileyo zenitrogen. Oku kuvumela iMelamine Cyanurate ukuba ikhuphe umlinganiselo othile wenitrogen kumaqondo obushushu aphezulu, ngaloo ndlela inqanda ukusasazeka kwamadangatye. Ubume balo beekhemikhali bugqiba ukuba bunozinzo oluhle lwe-thermal, amandla omatshini kunye nefuthe elihle kakhulu lokutshatyalaliswa komlilo.

Ukongeza, i-MCA ayinayo i-halogen element ezinobungozi, ngoko ke isetyenziswe ngokubanzi kwizihlandlo ezininzi kunye neemfuno eziphezulu zokusingqongileyo kunye nempilo, ngakumbi kwizinto zombane zasekhaya, izinto zokwakha kunye neendwangu.

 

Indlela yokubuyiswa komlilo yeMelamine Cyanurate

I-melamine Cyanurate ye-flame retardant ibonakaliswa ikakhulu kwiimpawu zayo zokubola kumaqondo aphezulu okushisa kunye nefuthe elithintelayo lomaleko wekhabhoni owenziweyo ekusasazeni ilangatye. Ngokukodwa, isiphumo sokubuyiswa komlilo we-MCA sinokuhlahlelwa kule miba ilandelayo:

(1) Ukukhutshwa kwenitrogen ukuthintela ukunikezelwa kweoksijini

Iimolekyuli ze-MCA ziqulethe isixa esikhulu sezinto zenitrogen. Ngexesha lokufudumeza, izinto zenitrogen ziya kukhutshwa zenze igesi (ingakumbi igesi yenitrogen). Igesi ye-nitrojeni ngokwayo ayikuxhasi ukutsha, ngoko inokunciphisa ngokufanelekileyo i-oksijini yoxinaniso ejikeleze umthombo womlilo, ukunciphisa ubushushu bomlilo, kwaye ngaloo ndlela icothise isantya sokutsha kwaye inqanda ukusasazeka kokutsha. Le nkqubo ibalulekile ekuphuculeni iipropati ze-flame retardant zezinto, ngakumbi phantsi kweemeko eziphezulu zokushisa.

(2) Ukukhuthaza ukubunjwa kwe-carbonized layer

Ngethuba lenkqubo ye-pyrolysis, i-MCA iya kubola kwaye ivelise i-carbonized layer ngexesha lokubola kwe-thermal. Olu luhlu lwe-carbonized inert luneempawu ezibalaseleyo zokugquma kwe-thermal kwaye lunokwenza umqobo phakathi kwendawo evuthayo kunye nommandla ongatshiyo, ukuthintela ukuhanjiswa kobushushu kunye nokunciphisa ngakumbi ukusasazeka kwedangatye.

Ukongezelela, i-carbonized layer iyakwazi ukwahlula i-oksijini emoyeni, yenza umaleko okhuselayo womzimba, ukunciphisa ngakumbi ukudibanisa kwe-oksijini kunye nezinto ezinokutsha, ngaloo ndlela zikhusela ngokufanelekileyo ukutsha. Ukuqulunqwa kunye nokuzinza kolu luhlu lwe-carbonized luyisitshixo sokuba i-MCA inokudlala ngokufanelekileyo indima yomlilo we-flame retardant.

(3) Ukusabela kwemichiza kuvelisa umphunga wamanzi

Ngaphantsi kwemekobume yobushushu obuphezulu, i-MCA iya kusabela kwi-decomposition reaction kwaye ikhulule umyinge othile womphunga wamanzi. Umphunga wamanzi unokunciphisa ngokufanelekileyo ubushushu bendawo kwaye ususe ubushushu ngokuba ngumphunga, ngaloo ndlela upholisa umthombo womlilo. Ukongeza, ukubunjwa komphunga wamanzi kunokunciphisa ukuxinana kweoksijini ejikeleze umthombo womlilo, ukuthintela ngakumbi ukusasazeka kwamadangatye.

(4) Impembelelo ye-Synergistic kunye nezinye izongezo

Ukongeza kwisiphumo sayo sokubuyiswa komlilo, iMelamine Cyanurate inokudityaniswa nezinye iiretardants zomlilo okanye izihluzi ukukhulisa iipropathi zokubuyiswa komlilo zizonke. Ngokomzekelo, i-MCA idla ngokusetyenziswa ngokudibanisa ne-phosphorus flame retardants, i-inorganic fillers, njl., enokuthi iphucule ukuzinza kwe-thermal kunye neempawu zoomatshini bezinto eziphathekayo kwaye zenze impembelelo ebanzi yokutshatyalaliswa komlilo.

 

Izinto eziluncedo kunye nezicelo zeMelamine Cynurate

(1) Ayinabungozi kokusingqongileyo kwaye ayinabungozi

Xa kuthelekiswa ne-halogen retardants ye-flame retardants, i-MCA ayikhuphi iigesi ze-halogen ezinobungozi (ezifana ne-hydrogen chloride, i-hydrogen bromide, njl.) ngexesha lenkqubo ye-flame retardant, ukunciphisa ukungcoliseka kokusingqongileyo kunye nobungozi obunokwenzeka kwimpilo yabantu. Inkqubo yokukhutshwa kwe-nitrogen ye-MCA ikhuselekile, ngoko ihambelana nokusingqongileyo ngexesha lokusetyenziswa kwaye inempembelelo encinci kwindalo engqongileyo.

(2) Ukuzinza kakuhle kwe-thermal kunye nokumelana nemozulu

I-MCA inozinzo oluphezulu lwe-thermal, inokugcina iipropati zeekhemikhali ezizinzile kumaqondo aphezulu, kwaye ikhusele ngokufanelekileyo ukutsha okubangelwa ukushisa okuphezulu. Kwezinye iindawo zokusebenza ezinobushushu obuphezulu, i-MCA inokubonelela ngokhuseleko oluhlala ixesha elide njengedangatye lomlilo.

Ukongeza, i-MCA inamandla okumelana nemozulu, inokugcina ukusebenza kakuhle ekusebenziseni ixesha elide, kwaye ivumelane neemeko zemozulu ezahlukeneyo.

(3) Umsi ophantsi

I-MCA ivelisa umsi omncinci xa ishushu kumaqondo aphezulu. Xa kuthelekiswa nezixhobo zesiqhelo ze-halogen flame retardants, inokunciphisa kakhulu ukukhutshwa kweegesi eziyityhefu emililweni kunye nokunciphisa ingozi yomsi kubasebenzi.

 

Njengobume bendalo kunye ne-non-toxicukunqanda amadangatye, I-Melamine Cyanurate inendlela eyodwa yokunqanda ilangatye ebonisa uluhlu olubanzi lwezicelo zokusetyenziswa kwizinto zanamhlanje. Ngophuculo oluqhubekayo lokhuseleko lokusingqongileyo kunye neemfuno zokhuseleko, i-Melamine Cyanrate iya kusetyenziswa kwiindawo ezininzi kwaye ibe yinto ephambili yezinto ezithintela ilangatye.

 

Ngolwazi oluthe kratya malunga nendlela yokukhetha i-MCA ekulungeleyo, nceda ubhekiselele kwinqaku lam "Ungawukhetha njani uMgangatho oLungileyo weMelamine Cyanrate?Ndiyathemba ukuba iya kuba luncedo kuwe.