I-Melamine formaldehyde resin luhlobo olutsha lwe-melamine resin, eyenziwe nge-melamine kunye ne-formaldehyde nge-polycondensation reaction. I-Melamine formaldehyde resin ineempawu ezintle kakhulu zomzimba nezoomatshini, ukumelana okuphezulu kweekhemikhali, ukumelana nobushushu kunye nokumelana namanzi. Ukumelana namanzi kunye nokuqina kweemveliso zayo kungcono kunokwe-urea-formaldehyde resin, ngoko ke isetyenziswa kakhulu ekwenzeni ifenitshala kunye nokuhombisa izakhiwo. Ngenxa yobuhlobo bayo obuhle nokusingqongileyo, i-melamine formaldehyde resin ithathwa njengemveliso efanelekileyo yokutshintsha i-urea-formaldehyde resin.
Kwiminyaka yakutshanje, i-melamine formaldehyde resin iye yaba luhlobo olutsha oluncamathelayo lokuncamathelisa ukusetyenzwa komthi ngenxa yokumelana nobushushu obuphezulu, ukunganyangeki kwamanzi kunye nokunganyangeki kwemichiza.
Xa kuthelekiswa ne-urea-formaldehyde resin, i-melamine-formaldehyde resin ineenzuzo ezilandelayo: umxholo ophantsi we-formaldehyde, ngokuhambelana neemfuno zokukhuselwa kwendalo, inkqubo yokuvelisa elula, umgangatho omhle wemveliso, ukusebenza okuzinzile, kulula ukuyiqhuba kunye nokubumba.
Kukho iindlela ezimbini eziphambili zokudibanisa i-melamine formaldehyde resin: enye yindlela ethe ngqo kwaye enye yindlela engathanga ngqo. Indlela ethe ngqo kukuxuba i-melamine kunye ne-formaldehyde, ukufudumeza malunga ne-70 ° C, kwaye emva koko ulawule ukushisa phakathi kwe-80 ° C ~ 90 ° C ngokufaka izinto eziphathekayo, ukufudumala, ukuvuselela, njl., kunye nokusabela kwi-3 ~ 4h, ngoko i-melamine formaldehyde resin inokufumaneka. Kule nkqubo, initrogen isetyenziselwa ukukhusela iformaldehyde ekukhululweni. Indlela engathanga ngqo kukuxuba i-melamine kunye ne-formaldehyde kwaye uyifake kwi-reactor ukuze iphendule. Ekubeni i-melamine kunye ne-formaldehyde zombini zizinto ze-alkaline ezibuthathaka, i-H + kunye ne-OH- eveliswa ngexesha lokuphendula inokusabela nge-CO2, i-H2O kunye nezinye iigesi ezisemoyeni ukuvelisa izinto zegesi, ezibekwe zodwa emoyeni ngokukhupha ngaphandle kweketile, kunye ne-synthesized melamine-formaldehyde resin, enokufunyanwa nge-distillation.
Iipropati zokudibanisa kunye ne-gluing ye-melamine-formaldehyde resins yanda ngokunyuka komxholo we-melamine kwii-resin ze-melamine-formaldehyde. Nangona kunjalo, i-bonding kunye ne-gluing ye-melamine formaldehyde resin iyancipha ngokunyuka kweqondo lokushisa, ngelixa iimpawu zayo zokunamathela zinyuka ngokunyuka kweqondo lokushisa. Xa izinga lokushisa liphakama ukuya kwinqanaba elithile, i-viscosity iyancipha ukuya kwixabiso elithile kwaye iqala ukunyuka kwakhona. Kuluhlu oluthile, i-viscosity ye-melamine formaldehyde resin iyancipha ngokunyuka komxholo we-melamine. Xa kuthelekiswa ne-urea-formaldehyde resin, ukumelana nokushisa kwayo, ukuxhathisa kwamanzi kunye nokumelana neekhemikhali kungcono kune-urea-formaldehyde resin.
I-Melamine formaldehyde resin isetyenziswa kakhulu ekucubungulweni kweenkuni kwi-plywood, kwi-joinery, kwi-plywood njalo njalo, kwaye ingasetyenziswa njengesiseko sebhodi yokwenziwa ye-veneer yefilimu efakwe kwi-veneer. Ukongeza, ingasetyenziselwa zonke iintlobo zeebhodi ezenziwe ngumntu ezihonjiswe ngephepha elifakwe kwi-peat kunye neebhodi zee-particle, ii-fiberboards ezinoxinano oluphakathi, iibhodi ze-strand ezijoliswe kwi-oriented ezihonjiswe ngephepha lefilimu efakwe kwi-peat. Kwicandelo lokuhombisa izakhiwo, i-melamine formaldehyde resin inokumelana kakuhle kwamanzi kunye nokuqina, kwaye ingasetyenziswa kuzo zonke iintlobo zezinto zokuhombisa zangaphakathi kunye nezinto zokuhombisa zangaphandle. I-Melamine formaldehyde resin ingasetyenziswa nasekwenzeni i-plywood engatshisi ubushushu, iphepha le-melamine (elibizwa ngokuba liphepha le-melamine) kunye nephepha elifakwe kwi-melamine. Ingasetyenziswa njengesiseko seebhodi zokwenziwa zefilimu enamathelayo efakwe kwi-peat, kwaye ikwasetyenziswa njengezinto zokuhombisa zangaphakathi ezifana nebhodi yee-particle, i-fiberboard enoxinano oluphakathi kunye ne-blockboard ehonjiswe ngephepha elifakwe kwi-peat.
I-Melamine formaldehyde resin inokusetyenziselwa ukwenza ifanitshala kunye neemveliso zomthi, kunye nezinto zokuhombisa ezifana neveneer, ipeyinti, iplywood, ibhloko, kunye neebhodi ezenziweyo. I-Melamine formaldehyde resin inokusetyenziswa njengezinto zokwakha kunye nezinto zokuhombisa ngaphakathi, kwaye inokusetyenziswa njengezinto zokupakisha ukutya. Ngenxa yokuba i-melamine formaldehyde resin ineempawu ezibalaseleyo zomzimba kunye noomatshini kunye nokumelana neekhemikhali, isetyenziswa kakhulu ekwenzeni iplywood kunye ne-blockboard. Iinzuzo eziphambili ze-melamine-formaldehyde resin zizixhobo ezilungileyo zomzimba kunye noomatshini, ubushushu obuhle kunye nokumelana namanzi, kwaye isetyenziswa ngokuqhelekileyo ekwenzeni i-fiberboard ephakathi kunye ne-particleboard.
Ulwazi oluthe kratya malunga ne-SINOYQX modified melamine formaldehyde resin, nceda unxibelelane nathi nge-imeyile: [email protected] , okanye usithumelele umyalezo ku: +86-28-8411-1861.
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