I-Melamine formaldehyde resin uhlobo olusha lwe-melamine resin, eyenziwe nge-melamine kanye ne-formaldehyde nge-polycondensation reaction. I-Melamine formaldehyde resin inezakhiwo ezinhle kakhulu zomzimba nezemishini, ukumelana namakhemikhali aphezulu, ukumelana nokushisa kanye nokumelana namanzi. Ukumelana namanzi nokuqina kwemikhiqizo yayo kungcono kunokwe-urea-formaldehyde resin, ngakho-ke isetshenziswa kabanzi ekukhiqizeni ifenisha kanye nokuhlobisa izakhiwo. Ngenxa yobungani bayo obuhle bemvelo, i-melamine formaldehyde resin ibhekwa njengomkhiqizo ofanele kakhulu wokufaka esikhundleni se-urea-formaldehyde resin.
Eminyakeni yamuva nje, i-melamine formaldehyde resin isiwuhlobo olusha olufanele lokunamathela ukuze kucutshungulwe ukhuni ngenxa yokumelana nokushisa okuphezulu, ukumelana namanzi nokumelana namakhemikhali.
Uma kuqhathaniswa ne-urea-formaldehyde resin, i-melamine-formaldehyde resin inezinzuzo ezilandelayo: okuqukethwe okuphansi kwe-formaldehyde, ngokuhambisana nezidingo zokuvikelwa kwemvelo, inqubo yokukhiqiza elula, ikhwalithi yomkhiqizo omuhle, ukusebenza okuzinzile, ukucubungula okulula nokubunjwa.
Kunezindlela ezimbili eziyinhloko zokuhlanganisa i-melamine formaldehyde resin: enye indlela eqondile kanti enye indlela engaqondile. Indlela eqondile ukuxuba i-melamine ne-formaldehyde, ukushisa ku-70 ° C, bese ulawula izinga lokushisa phakathi kuka-80 ° C ~ 90 ° C ngokungeza izinto zokwakha, ukufudumala, ukugoqa, njll., nokusabela ku-3 ~ 4h, khona-ke i-melamine formaldehyde resin ingatholakala. Kule nqubo, i-nitrogen isetshenziselwa ukuvikela i-formaldehyde ekukhishweni. Indlela engaqondile ukuxuba i-melamine ne-formaldehyde bese uyifaka ku-reactor ukuze iphendule. Njengoba i-melamine ne-formaldehyde kokubili kuyizinto ze-alkaline ezibuthakathaka, i-H+ ne-OH- ekhiqizwa ngesikhathi sokusabela ingasabela nge-CO2, i-H2O namanye amagesi emoyeni ukuze kukhiqizwe izinto ezinegesi, ezihlukaniswa emoyeni ngokuphuma eketela, kanye ne-synthesized melamine-formaldehyde resin, engatholwa nge-distill.
Izakhiwo zokubopha kanye ne-gluing zama-melamine-formaldehyde resins ziyakhula ngokwanda kokuqukethwe kwe-melamine kumaresini e-melamine-formaldehyde. Kodwa-ke, izakhiwo zokubopha kanye ne-gluing ye-melamine formaldehyde resin ziyancipha ngokukhuphuka kwezinga lokushisa, kuyilapho izakhiwo zayo zokunamathisela zikhula ngokunyuka kwezinga lokushisa. Lapho izinga lokushisa likhuphuka ngezinga elithile, i-viscosity iyancipha ibe yinani elithile bese iqala ukuphakama futhi. Phakathi kwebanga elithile, i-viscosity ye-melamine formaldehyde resin iyancipha ngokwanda kokuqukethwe kwe-melamine. Uma kuqhathaniswa ne-urea-formaldehyde resin, ukumelana nokushisa kwayo, ukumelana kwamanzi nokumelana namakhemikhali kungcono kune-urea-formaldehyde resin.
I-Melamine formaldehyde resin isetshenziswa kakhulu ekucubungulweni kwezinkuni ze-plywood, i-joinery, i-plywood nokunye, futhi ingasetshenziswa njengesisekelo sebhodi lokwenziwa le-veneer lefilimu elifakwe ngaphakathi. Ngaphezu kwalokho, ingasetshenziswa futhi kuzo zonke izinhlobo zamabhodi enziwe ngabantu ahlotshiswe ngephepha elifakwe ngaphakathi kanye namabhodi ezinhlayiya, ama-fiberboard aphakathi nendawo, amabhodi e-strand aqondiswe ahlotshiswe ngephepha lefilimu elifakwe ngaphakathi. Emkhakheni wokuhlobisa isakhiwo, i-melamine formaldehyde resin inokumelana okuhle kwamanzi nokuqina, futhi ingasetshenziswa kuzo zonke izinhlobo zezinto zokuhlobisa zangaphakathi kanye nezinto zokuhlobisa zangaphandle. I-Melamine formaldehyde resin ingasetshenziswa futhi ekwenziweni kwe-plywood engashisi, iphepha le-melamine (elibizwa ngokuthi iphepha le-melamine) kanye nephepha elifakwe ngaphakathi le-melamine. Ingasetshenziswa njengesisekelo samabhodi okwenziwa ephepha anamathelayo afakwe ngaphakathi, kanye nezinto zokuhlobisa zangaphakathi njengebhodi lezinhlayiya, ibhodi le-fiberboard eliphakathi nendawo kanye nebhodi elihlotshiswe ngephepha elifakwe ngaphakathi.
I-Melamine formaldehyde resin ingasetshenziselwa ukwenza ifenisha nemikhiqizo yezinkuni, kanye nokwakha izinto zokuhlobisa njenge-veneer, upende, i-plywood, i-blockboard, kanye namabhodi okwenziwa. I-Melamine formaldehyde resin ingasetshenziswa njengezinto zokwakha nezinto zomhlobiso wangaphakathi, futhi ingasetshenziswa njengezinto zokupakisha ukudla. Ngenxa yokuthi i-melamine formaldehyde resin inezakhiwo ezinhle kakhulu zomzimba nemishini kanye nokumelana namakhemikhali, isetshenziswa kabanzi ekwenzeni i-plywood ne-blockboard. Izinzuzo eziyinhloko ze-melamine-formaldehyde resin yizici ezinhle zomzimba nemishini, ukushisa okuhle nokumelana namanzi, futhi ivame ukusetshenziswa ekwenzeni i-medium density fiberboard kanye ne-particleboard.
Ulwazi olwengeziwe mayelana ne-SINOYQX modified melamine formaldehyde resin, sicela usithinte nge-imeyili: [email protected] , noma usithumelele izwi ku: +86-28-8411-1861.
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