Tsiku Lotumiza:11,Feb,2022

Sulfonatedmelamineformaldehyderesinimatchedwamelamine utomoni, amadziwikanso kutimelamine formaldehyde utomonikapenamelamine utomoni. Ndikofunikira kwa mphete ya triazine.Melamine utomoniali ndi kukana kwambiri kwamadzi, kukana kukalamba, kuletsa moto, kukana kutentha, kukana kwamankhwala ndi zinthu zotchinjiriza, ndipo angagwiritsidwe ntchito popanga zinthu zomangira (tableware yatsiku ndi tsiku ndi zida zamagetsi), mapanelo opangidwa ndi matabwa (plywood, laminate flooring ndi pulasitiki laminated matabwa)) ndi pulasitiki thovu, etc. Komanso, melamine utomoniamagwiritsidwanso ntchito kwambiri ngati zokutira, zomatira matabwa, zomangira zopaka utoto, zomangira nsalu za fiber, zida zonyowa zamapepala ndi zochepetsera madzi simenti.

Melamine utomoniili ndi zotsatirazi zazikulu:

1. Kugwiritsa ntchito pamakampani azikopa:

M'makampani achikopa,melamine utomonindizomwe zimagwiritsidwa ntchito nthawi zambiri zisanayambike, kuwotcha ndi kudzaza utomoni, pakati pawo trimethylolmelamine utomonindiamino resin yomwe imagwiritsidwa ntchito kwambiri. Utomoni wa amino umakhala ndi njira yowotchera ngati ya aldehyde: prepolymer imalowa pakhungu, ndipo pH ikatsika, prepolymer imadziunjikira kukhala molekyulu yokhala ndi kukula kwake pakhungu, ndi yogwira -NHCH 2 OH ndi collagen mu molekyulu amadutsamo. Magulu a amino pa unyolo wa peptide amafupikitsidwa kuti apange njira yolumikizirana yolumikizana kuti akwaniritse cholinga chofufutira. Nthawi yomweyo, utomoni wa amino umakhala ndi zotsatira zodzaza. Braum, Aloysins ndi ena adagwiritsa ntchito GPS, IR, 1H-NMR, 13C-NMR ndi njira zina zodziwira, ndipo adapeza kuti utomoniwu uli ndi mphamvu zowotcha komanso kudzaza, ndipo ukhoza kudzazidwa ndi kuchuluka kwakukulu pakati pa ulusi wa collagen wa chikopa mpaka panga thupi lachikopa kukhala lolemera. Zotsatira.Melamine utomonipofufuta amagwiritsidwa ntchito powotchanso chikopa chowala cha chrome kuti chikopa chomalizidwacho chikhale chowoneka bwino, chodzaza ndi mafupa, kukhuthala kodziwikiratu, kuyera bwino komanso kufulumira kwa kuwala. Ndipo imagwirizana bwino ndi zinthu zina zofufuta. Ntchito osakaniza masamba pofufuta wothandizila, akhoza kulimbikitsa malowedwe ndi mayamwidwe masamba pofufuta wothandizila, ndi kuonjezera abrasion kukana ndi nyengo kukana chikopa. Ngati agwiritsidwa ntchito pobwezeretsanso suede, kukweza kwake ndikwabwino.

2. Kugwiritsa ntchito pamakampani opanga mapepala:

Mfundo ndi magwiridwe antchito akugwiritsidwa ntchito ngati chonyowa cholimbikitsa komanso choletsa madzi. Chifukwa ndimelamine formaldehyde utomoniili ndi methylol, imatha kupanga kapangidwe ka etherified pakati pa mitolo ya ulusi. Kulumikizana kumeneku pakati pa mamolekyu osiyanasiyana kumatulutsa kukana kwa madzi ndikupanga pepala. Kuti akwaniritse zotsatira za mphamvu zowonongeka, zimagwiritsidwa ntchito makamaka ngati chowonjezera chonyowa komanso chochotsa madzi m'makampani a mapepala. Trimethylol melamine imagwiritsidwa ntchito makamaka pamakampani opanga mapepala, koma chifukwa kukhazikika kwake, kusungunuka kwamadzi ndi zinthu zaulere za formaldehyde sizoyenera, ndipo zimakhala ndi zotsatira zoyipa pakuyera komanso kulimba kwa pepala, melamine yosinthidwa imagwiritsidwa ntchito kwambiri pakadali pano. utomoni.

3. Amagwiritsidwa ntchito ngati zotayira za ceramic ndi simenti:

Melamine formaldehyde utomonisulfonate ndi wabwino anionic surfactant ndi ntchito pamwamba ndi zina zofunika. Nthawi zambiri amagwiritsidwa ntchito ngati dispersant yapamwamba kwambiri kapena yochepetsera madzi muzoumba, simenti ndi konkire kunyumba ndi kunja. Limagwirira ntchito zake makamaka: mtundu uwu wa madzi kuchepetsa wothandizira ali ndi ntchito adsorption, kubalalitsidwa ndi mafuta, kotero workability konkire akhoza bwino pogwiritsa ntchito madzi ochepa, kuti akwaniritse cholinga kuchepetsa madzi. Chifukwa cha kuchepa kwa chiŵerengero cha kusakaniza kwa madzi, ma pores mu konkire amachepetsedwa, kupanga simenti kukhala wandiweyani komanso kuonjezera mphamvu, zomwe zingachepetsenso simenti. Chifukwa cha kulowetsedwa kwa madzi ochepetsera madzi, kukula kwa zinthu za simenti za hydration kumachedwa, ndipo mawonekedwe a sulfonated konkire a konkire amakhala wandiweyani, zomwe zimapindulitsa kuonjezera mphamvu ya nthawi yaitali ya konkire.

4. Amagwiritsidwa ntchito ngati zomatira matabwa:

M'makampani a matabwa,smawonekedwemelamineformaldehyderesinamagwiritsidwa ntchito makamaka ngati zomatira. Chifukwa cha mankhwala ake okwera kwambiri, akamalowa muzinthu zamatabwa, kuthamanga kwa mtanda ndi kuuma kumathamanga kwambiri, ndipo kumatha kutenthedwa ndi kutentha kapena kuumitsa kutentha popanda zovuta zina, potero kumapanga mgwirizano. Chifukwa cha kukhazikika kwake kwa kutentha kwabwino, kukana madzi ndi kukana kwa mankhwala, amagwiritsidwa ntchito kwambiri pamapulaneti opangidwa ndi matabwa, matabwa, zomangamanga, kuyika mapepala ndi zina. Cholinga cha gawo ili ndi momwe mungagonjetsere vuto losweka ndikupezamelamine formaldehyde utomonindi kusinthasintha kwapakati. Njira yothetsera pano ndi kuwonjezera mowa wa polyvinyl, chifukwa umatha kuchitapo kanthu ndi formaldehyde kupanga polyvinyl acetal, yomwe imagawidwa mofanana mu utomoni, kuti atseke ma molekyulu atatu a nayitrogeni a heterocyclic mu mamolekyu a utomoni a MF kuti asayandikire. kupewa kusweka.

5. Amagwiritsidwa ntchito ngati chosindikizira cha nsalu ndi kumaliza utoto:

M'makampani opanga nsalu,smawonekedwemelamineformaldehyderesinndi zotumphukira zake ndizofunikira zopangira zopangira zosindikizira nsalu, zopaka utoto ndi zomaliza. Kachitidwe kake kachitidwe kake kamayenera kugwiritsidwa ntchito ngati chosinthira pamwamba komanso cholumikizira nsalu, potero kuwongolera anti-shrinkage, anti-khwinya ndi kutsuka madzi kwa nsalu za thonje. Komabe, chifukwa cha kusakhazikika kosungirako bwino, kumva kwaukali m'manja ndi kuyamwa kosavuta kwa chlorine ndi chikasu cha nsalu pambuyo poigwiritsa ntchito, kafukufuku wochulukirapo wachitika pakusintha kwake. Pakali pano, methanol etherifiedmelamine utomoniamagwiritsidwa ntchito, ndipo zosintha za formaldehyde monga cyclic vinylidene urea ndi borax zimawonjezeredwa kuti zisinthe.melamine formaldehyde utomonikumaliza wothandizira ndi ultra-low aldehyde ndi kukhazikika kwakukulu. Utoto wosinthidwa umagwiritsidwa ntchito poletsa kutsika ndi kukwinya kwa bleached poplin. Kuphatikiza apo, nthawi yosungiramo yomaliza ndi 210-365 d, zomwe zili zaulere za formaldehyde ndi 0.3%, ndipo zolimba zili pafupifupi 40%.