Idethi yokuthunyelwe:11,Feb,2022

I-Sulfonatedmelaminefi-ormaldehyderesinubizwa ngokuthii-melamine resin, obeye aziwe njengoI-melamine formaldehyde resinnomai-melamine resin. Kuyinhlanganisela ebalulekile yeringi ye-triazine.I-Melamine resininokumelana namanzi okuhle kakhulu, ukumelana nokuguga, i-flame retardant, ukumelana nokushisa, ukumelana namakhemikhali kanye nezindawo zokushisa, futhi ingasetshenziswa ekwenzeni izinhlanganisela zokubumba (i-tableware yansuku zonke nezinto zikagesi zikagesi), amaphaneli asekelwe ngokhuni (i-plywood, i-laminate flooring kanye nepulasitiki laminated amabhodi)) kanye nepulasitiki eyigwebu, njll. Ngaphezu kwalokho, i-melamine resinibuye isetshenziswe kabanzi njengezinto zokumboza, izinto zokunamathisela ngokhuni, ama-agent axhumanisa upende, ama-fiber textile finishing agents, ama-agent anamandla ephepha kanye nama-ejenti okunciphisa amanzi usimende.

I-Melamine resininalezi zicelo ezinkulu ezilandelayo:

1. Isicelo embonini yesikhumba:

Embonini yesikhumba,i-melamine resinisetshenziswa evame ukusetshenziswa pre-ukushuka, retanning kanye nokugcwalisa resin, phakathi kwayo trimethyloli-melamine resini-amino resin esetshenziswa kakhulu. I-amino resin inendlela yokushuka efana neye-aldehyde tanning: i-prepolymer ingena esikhumbeni, futhi njengoba inani le-pH lincipha, i-prepolymer ijiya ngokuzenzakalelayo ibe i-molecule enosayizi othile esikhumbeni, kanye ne-active -NHCH 2 OH futhi i-collagen ku-molecule idlula. Amaqembu e-amino ochungechungeni lwe-peptide ayafinyezwa ukuze akhe uhlelo oluhlangene lokuxhumanisa ukuze kuzuzwe inhloso yokushuka. Ngesikhathi esifanayo, i-amino resin inomphumela wokugcwalisa. I-Braum, i-Aloysins nabanye basebenzisa i-GPS, i-IR, i-1H-NMR, i-13C-NMR nezinye izindlela zokuhlonza, futhi bathola ukuthi le resin inazo zombili izici zokushuka nokugcwalisa, futhi ingagcwaliswa ngenani elikhulu phakathi kwemicu ye-collagen yesikhumba ukuze yenza umzimba wesikhumba utyebe. Umphumela.I-Melamine resini-ejenti yokushuka isetshenziswa ekwenziweni kabusha kwesikhumba esikhanyayo esi-chrome ukwenza isikhumba esiqediwe sibe yizinhlamvu ezinhle, sigcwele amathambo, ukujiya okusobala, umphumela omuhle wokuba mhlophe kanye nokushesha okuhle kokukhanya. Futhi inokuhambisana okuhle namanye ama-ejenti okushuka. Uma isetshenziswa ngokuhambisana nama-ejenti okushuka kwemifino, ingakhuthaza ukungena nokumuncwa kwama-ejenti okushuka kwemifino, futhi yandise ukumelana nemihuzuko kanye nokumelana nesimo sezulu sesikhumba. Uma isetshenziselwa ukugcotshwa kwe-suede, umphumela wokukhuphula muhle.

2. Isicelo embonini yamaphepha:

Isimiso kanye nezici zokusebenza zokusetshenziswa njenge-ejenti yokuqinisa emanzi kanye ne-repellant yamanzi. Ngoba iI-melamine formaldehyde resiniqukethe i-methylol, ingakha isakhiwo esine-etherified phakathi kwezibopho ze-fiber. Lokhu kuxhumanisa phakathi kwama-molecule ahlukene kukhiqiza ukumelana namanzi futhi kwenza ishidi lephepha. Ukuze kuzuzwe umphumela wamandla okuthambisa, isetshenziswa ikakhulukazi njenge-ejenti yokuqinisa emanzi kanye ne-repellant yamanzi embonini yamaphepha. I-Trimethylol melamine isetshenziswa kakhulu embonini yephepha, kodwa ngenxa yokuthi ukuzinza kwayo, ukuncibilika kwamanzi kanye nokuqukethwe kwamahhala kwe-formaldehyde akulungile, futhi kunomthelela omubi ekuba mhlophe nokuqina kwephepha, i-melamine eguquliwe isetshenziswa kabanzi okwamanje. inhlaka.

3. Isetshenziswa njenge-ceramic kanye ne-disperant yesimende:

I-Melamine formaldehyde resinI-sulfonate iyisisetshenziswa esihle se-anionic esisebenza phezulu nezinye izinto ezibalulekile. Ivamise ukusetshenziswa njenge-dispersant esebenza kahle kakhulu noma isinciphisi samanzi kuma-ceramics, usimende nokhonkolo ekhaya naphesheya. Indlela yokusebenza kwayo ikakhulukazi: lolu hlobo lwe-ejenti yokunciphisa amanzi lunemisebenzi yokukhangisa, ukusabalalisa kanye nokugcoba, ngakho-ke ukusebenza kokhonkolo kungathuthukiswa ngokusebenzisa amanzi amancane, ukuze kufezeke inhloso yokunciphisa amanzi. Ngenxa yokuncipha kwesilinganiso sokuxuba amanzi, ama-pores kukhonkolo ayancipha, okwenza usimende ube mkhulu futhi andise amandla, okungase futhi kunciphise inani likasimende. Ngenxa yokungena kwe-ejenti yokunciphisa amanzi, ukukhula kwemikhiqizo ye-cement hydration kuhamba kancane, futhi isakhiwo senethiwekhi ye-sulfonated ikhonkrithi siminyene kakhulu, okuzuzisa ekwandeni kwamandla esikhathi eside kakhonkolo.

4. Isetshenziswa njengengcina yezinkuni:

Embonini yezinkuni,si-ulfonatedmelaminefi-ormaldehyderesinasetshenziswa ngokuyinhloko njengama-adhesive. Ngenxa yokusebenza kwayo kwamakhemikhali aphezulu, lapho ingena emikhiqizweni yokhuni, isivinini sokuxhumanisa kanye nokuqina siyashesha, futhi singaqiniswa ngokushisa okushisayo noma sibe lukhuni ekamelweni lokushisa ngaphandle kwamanye ama-hardeners, ngaleyo ndlela kukhiqize umphumela wokubopha. Ngenxa yokuqina kwayo okuhle kokushisa, ukumelana kwamanzi nokumelana namakhemikhali, isetshenziswa kakhulu kumapaneli asekelwe ngokhuni, izinkuni, ukwakhiwa, ukupakishwa kwamaphepha kanye neminye imikhakha. Okugxilwe kulo mkhakha ukuthi unganqoba kanjani ukwenzeka kokuqhekeka nokutholwaI-melamine formaldehyde resinngokuguquguquka okulingene. Isixazululo samanje ukufaka i-polyvinyl alcohol, ngoba ingasabela nge-formaldehyde ukuze ikhiqize i-polyvinyl acetal, esabalaliswa ngokulinganayo ku-resin, ukuze kuvinjwe ama-molecule amathathu e-nitrogen heterocyclic kuma-molecule e-resin ye-MF ukuthi angasondeli, adlale umphumela oqinisayo futhi vimbela ukuqhekeka.

5. Isetshenziswa njenge-ejenti yokuqedela yokuphrinta nokudaya:

Embonini yendwangu,si-ulfonatedmelaminefi-ormaldehyderesinkanye nokuphuma kwayo kuyizinto ezibalulekile zokulungiswa kwendwangu yokunyathelisa, ukudaya nokuqeda ama-agent. Indlela yokusebenza kwayo ngokuyinhloko kufanele isetshenziswe njengesilungisi esingaphezulu kanye ne-ejenti yokuhlanganisa izindwangu, ngaleyo ndlela ithuthukise izakhiwo zokulwa nokushwabana, ukulwa nemibimbi kanye nezindawo zokugeza amanzi zezindwangu zikakotini. Kodwa-ke, ngenxa yokungaqini kahle kwesitoreji, umuzwa wesandla omahhadlahhadla kanye nokumuncwa kalula kwe-chlorine nokuba phuzi kwendwangu ngemva kokufakwa, ucwaningo olwengeziwe selwenziwe ngokulungiswa kwayo. Okwamanje, i-methanol etherifiedi-melamine resinisetshenziswa, futhi izilungisi ze-formaldehyde ezifana ne-cyclic vinylidene urea ne-borax ziyengezwa ukuze kutholwe okushintshiwe.I-melamine formaldehyde resini-ejenti yokuqedela ene-aldehyde ephansi kakhulu kanye nokuzinza okuphezulu. I-resin eguquliwe isetshenziselwa i-anti-shrinkage kanye ne-anti-wrinkle ye-bleached poplin Ukuqeda, ukuphuzi nokulahlekelwa kwe-chlorine kuyathuthukiswa, futhi ukumelana nokugeza nakho kungcono. Ngaphezu kwalokho, isikhathi sokugcina se-ejenti yokuqeda singama-210-365 d, okuqukethwe kwamahhala kwe-formaldehyde kungu-0.3%, futhi okuqukethwe okuqinile kungama-40%.