Umhla wokuPoswa:11,Feb,2022

Sulfonatedmelamineformaldehyderesinkubhekiselwa kuyo njengemelamine resin, kwaziwa njengemelamine formaldehyde resinokanyemelamine resin.Yinto ebalulekileyo yeringi ye-triazine.I-melamine resininokumelana okugqwesileyo kwamanzi, ukumelana nokuguga, ukunqanda ilangatye, ukumelana nobushushu, ukuxhathisa imichiza kunye neempawu zokugquma, kwaye ingasetyenziselwa ukwenziwa kwezinto zokubumba (itafile yemihla ngemihla kunye nezixhobo zombane), iipaneli ezisekwe ngamaplanga (iplywood, i-laminate flooring kunye neplastiki elaminethiweyo. iibhodi)) kunye neplastiki yogwebu, njl. Ukongeza, melamine resinikwasetyenziswa ngokubanzi njengezinto zokugquma, izinto zokuncamathelisa iinkuni, ipeyinti edibanisa i-agent edibanisa i-cross-linking, i-fiber textile finishing agents, ii-agent zamandla ezimanzi zephepha kunye ne-samente yokunciphisa amanzi.

I-melamine resininezi zicelo eziphambili zilandelayo:

1. Isicelo kwishishini lesikhumba:

Kwishishini lesikhumba,melamine resinyinto esetyenziswa ngokuqhelekileyo kwangaphambili, ukutshisa kunye nokuzalisa i-resin, phakathi kwayo i-trimethylolmelamine resinyeyona amino resin isetyenziswa kakhulu.I-amino resin inendlela yokutshisa efana ne-aldehyde tanning: i-prepolymer ingena eluswini, kwaye njengoko ixabiso le-pH liyancipha, i-prepolymer idibanisa ngokuzenzekelayo ibe yi-molecule enobungakanani obuthile esikhumbeni, kunye nesebenzayo -NHCH 2 OH kwaye i-collagen kwi-molecule idlula.Amaqela e-amino kwitsheyina le-peptide ayaconjululwa ukuze enze inkqubo edibanisayo yokudibanisa ukuwela ukuphumeza injongo yokulukwa.Ngexesha elifanayo, i-amino resin inefuthe lokuzalisa.I-Braum, i-Aloysins kunye nabanye basebenzisa i-GPS, i-IR, i-1H-NMR, i-13C-NMR kunye nezinye iindlela zokubona, kwaye bafumanisa ukuba le resin ineempawu zombini zokutshisa kunye nokuzalisa, kwaye inokuzaliswa kwisixa esikhulu phakathi kwe-collagen fibers yesikhumba ukuya. yenza umzimba wesikhumba utyebe.Isiphumo.I-melamine resini-ajenti yokulukwa isetyenziswa ekungcolisweni kolusu lwe-chrome-tanned ukwenza ulusu olugqityiweyo lube neenkozo ezintle, luzele ngamathambo, ukujiya okucacileyo, isiphumo esihle sokwenza mhlophe kunye nokukhawuleza kokukhanya okulungileyo.Kwaye iyahambelana kakuhle nezinye iiarhente zokulukwa.Isetyenziswe ngokudibeneyo kunye nee-agent zokutshisa imifuno, inokukhuthaza ukungena kunye nokufunxa i-agent ye-tanning agents, kunye nokwandisa ukuxhathisa kwe-abrasion kunye nokumelana nemozulu yesikhumba.Ukuba isetyenziselwa ukugcinwa kwe-suede, umphumo wokunyusa ulungile.

2. Ukusetyenziswa kushishino lwephepha:

Umgaqo kunye neempawu zokusebenza zokusetyenziswa njenge-ejenti yokomeleza okumanzi kunye ne-repellant yamanzi.Ngenxa yokubamelamine formaldehyde resiniqulethe i-methylol, inokwenza i-etherified structure phakathi kwee-fiber bundles.Le cross-linking phakathi kweemolekyuli ezahlukeneyo kuvelisa ukuxhathisa kwamanzi kwaye yenza iphepha lephepha.Ukufezekisa umphumo wamandla okuthambisa, isetyenziswa kakhulu njenge-ejenti yokomeleza okumanzi kunye ne-repellant yamanzi kwishishini lephepha.I-Trimethylol melamine isetyenziswa kakhulu kwishishini lephepha, kodwa ngenxa yokuba ukuzinza kwayo, ukunyibilika kwamanzi kunye nomxholo wamahhala we-formaldehyde ayifanelekanga, kwaye inefuthe elibi kumhlophe kunye nokuqina kwephepha, i-melamine elungisiweyo isetyenziswa ngokubanzi ngoku.intlaka.

3. Isetyenziswa njenge-ceramic kunye ne-samente dispersant:

I-Melamine formaldehyde resinI-sulfonate yi-anionic surfactant efanelekileyo kunye nomsebenzi ongaphezulu kunye nezinye iimpawu ezixabisekileyo.Ihlala isetyenziswa njenge-dispersant ephezulu okanye isinciphisi samanzi kwi-ceramics, isamente kunye nekhonkrithi ekhaya nakwamanye amazwe.Indlela yokusebenza kwayo ikakhulu: olu hlobo lwe-arhente yokunciphisa amanzi lunemisebenzi ye-adsorption, i-dispersion and lubrication, ngoko ke ukusebenza kwekhonkrithi kunokuphuculwa ngokusebenzisa amanzi amancinci, ukuze kufezekiswe injongo yokunciphisa amanzi.Ngenxa yokuncipha komlinganiselo wokuxuba amanzi, iipores kwikhonkrithi ziyancipha, okwenza i-samente ibe nzima kwaye ikhulise amandla, oko kunokunciphisa inani le-samente.Ngenxa yokungeniswa kwe-arhente yokunciphisa amanzi, ukukhula kweemveliso ze-cement hydration kucotha, kunye nesakhiwo sothungelwano lwekhonkrithi ye-sulfonated sixinene ngakumbi, okuluncedo ekunyuseni kwamandla exesha elide lekhonkrithi.

4. Isetyenziswa njengento yokuncamathelisa iinkuni:

Kwishishini lemithi,si-ulfonatedmelamineformaldehyderesinzisetyenziswa ikakhulu njengezinto zokuncamathelisa.Ngenxa yomsebenzi wayo ophezulu weekhemikhali, xa ingena kwiimveliso zokhuni, i-cross-linking kunye nesantya esinzima sikhawuleza, kwaye sinokuqiniswa kwe-thermal okanye iqiniswe kwiqondo lokushisa ngaphandle kwamanye ama-harder, ngaloo ndlela ivelise umphumo wokudibanisa.Ngenxa yokuzinza kwayo okuhle kwe-thermal, ukumelana kwamanzi kunye nokuchasana kweekhemikhali, isetyenziswe ngokubanzi kwiipaneli ezisekelwe kwimithi, imithi, ukwakhiwa, ukupakishwa kwephepha kunye nezinye iindawo.Ingqwalasela yalo mmandla yindlela yokoyisa i-phenomenon yokuqhekeka kwaye ufumanemelamine formaldehyde resinngokuguquguquka okuphakathi.Isisombululo sangoku kukongeza i-polyvinyl alcohol, kuba inokusabela nge-formaldehyde ukuvelisa i-polyvinyl acetal, esasazwa ngokulinganayo kwi-resin, ukwenzela ukuvimba i-nitrogen molecules ye-heterocyclic kwi-molecule ye-resin ye-MF ukuba isondele, idlale umphumo onzima kwaye thintela ukuqhekeka.

5. Isetyenziswa njenge-ejenti yokugqiba ilaphu kunye nokudaya:

Kushishino lwamalaphu,si-ulfonatedmelamineformaldehyderesinkunye ne-derivatives yayo zizinto ezibalulekileyo zokulungiswa kwendwangu yokuprinta, ukudaya kunye nokugqiba.Indlela yokusebenza kwayo isetyenziswa ikakhulu njengesilungisi somphezulu kunye nearhente yokudibanisa amalaphu, ngaloo ndlela iphucula i-anti-shrinkage, i-anti-wrinkle kunye neempawu zokuhlambela amanzi kwilaphu lomqhaphu.Nangona kunjalo, ngenxa yozinzo olulambathayo lokugcinwa, imvakalelo yesandla esirhabaxa kunye nokufunxeka lula kweklorin kunye nokuba tyheli kwelaphu emva kokufakwa kwesicelo, uphando oluninzi luye lwenziwa malunga nokuguqulwa kwayo.Okwangoku, i-methanol etherifiedmelamine resinkusetyenziswa, kunye nezilungisi ze-formaldehyde ezifana ne-cyclic vinylidene urea kunye neborax zongezwa ukufumana ulungiso olulungisiweyo.melamine formaldehyde resini-agent yokugqiba nge-ultra-low aldehyde kunye nokuzinza okuphezulu.I-resin elungisiweyo isetyenziselwa i-anti-shrinkage kunye ne-anti-wrinkle ye-bleached poplin Ukugqiba, ukulahleka kwe-yellowing kunye ne-chlorine kuphuculwe, kunye nokuchasana nokuhlamba kubhetele.Ngaphezu koko, ixesha lokugcinwa kwe-arhente yokugqiba ngu-210-365 d, umxholo we-formaldehyde wamahhala ngu-0.3%, kwaye umxholo oqinileyo malunga ne-40%.