Melamine formaldehyde resin yog ib hom melamine resin tshiab, uas yog ua los ntawm melamine thiab formaldehyde los ntawm polycondensation reaction. Melamine formaldehyde resin muaj cov khoom zoo heev rau lub cev thiab cov khoom siv kho tshuab, tiv taus tshuaj lom neeg, tiv taus kub thiab tiv taus dej. Nws cov khoom tiv taus dej thiab ruaj khov zoo dua li urea-formaldehyde resin, yog li nws siv dav hauv kev tsim rooj tog thiab kho kom zoo nkauj. Vim nws zoo rau ib puag ncig, melamine formaldehyde resin yog suav tias yog cov khoom zoo tshaj plaws los hloov urea-formaldehyde resin.
Nyob rau hauv xyoo tas los no, melamine formaldehyde resin tau dhau los ua hom tshiab zoo tshaj plaws ntawm cov nplaum rau kev ua cov ntoo vim nws qhov kub tsis kam, dej tsis kam thiab tshuaj lom neeg.
Piv nrog rau urea-formaldehyde resin, melamine-formaldehyde resin muaj qhov zoo hauv qab no: cov ntsiab lus tsis muaj formaldehyde, nyob rau hauv txoj kab nrog cov kev cai ntawm kev tiv thaiv ib puag ncig, cov txheej txheem tsim khoom yooj yim, cov khoom zoo, kev ua haujlwm ruaj khov, yooj yim rau txheej txheem thiab molding.
Muaj ob txoj hauv kev tseem ceeb rau melamine formaldehyde resin: ib qho yog txoj kev ncaj thiab lwm qhov yog txoj kev tsis ncaj. Txoj kev ncaj qha yog sib tov melamine thiab formaldehyde, cua sov txog li 70 ° C, thiab tom qab ntawd tswj qhov kub ntawm 80 ° C ~ 90 ° C los ntawm kev ntxiv cov ntaub ntawv, ua kom sov, nplawm, thiab lwm yam, thiab reacting rau 3 ~ 4h, ces cov melamine formaldehyde resin tuaj yeem tau. Hauv cov txheej txheem no, nitrogen yog siv los tiv thaiv formaldehyde los ntawm kev tso tawm. Txoj kev tsis ncaj ncees yog sib tov melamine thiab formaldehyde thiab ntxiv rau lub reactor rau cov tshuaj tiv thaiv. Txij li thaum melamine thiab formaldehyde yog ob qho tib si tsis muaj zog alkaline, H + thiab OH- tsim thaum lub sij hawm cov tshuaj tiv thaiv tuaj yeem hnov mob nrog CO2, H2O thiab lwm yam gases nyob rau hauv cov huab cua los tsim cov tshuaj gaseous, uas yog cais tawm ntawm huab cua los ntawm kev tawm ntawm lub hwj, thiab cov synthesized melamine-formaldehyde resin distillation.
Cov khoom sib txuas thiab gluing ntawm melamine-formaldehyde resins nce nrog nce melamine cov ntsiab lus hauv melamine-formaldehyde resins. Txawm li cas los xij, cov khoom sib txuas thiab gluing ntawm melamine formaldehyde resin txo nrog qhov kub thiab txias, thaum nws cov khoom gluing nce nrog nce kub. Thaum qhov kub nce mus rau ib qho twg, qhov viscosity txo qis rau qee yam nqi thiab tom qab ntawd pib nce ntxiv. Nyob rau hauv ib tug tej yam ntau yam, lub viscosity ntawm melamine formaldehyde resin txo nrog qhov nce ntawm melamine cov ntsiab lus. Piv nrog rau urea-formaldehyde resin, nws cov cua kub tsis kam, dej tsis kam thiab tshuaj lom neeg kuj zoo dua li ntawm urea-formaldehyde resin.
Melamine formaldehyde resin feem ntau yog siv rau hauv kev ua cov ntoo plywood, joinery, plywood thiab lwm yam, thiab siv tau ua lub substrate ntawm impregnated film paper veneer artificial board. Tsis tas li ntawd, nws kuj siv tau rau txhua yam ntawm cov ntoo ua los ntawm tib neeg uas dai kom zoo nkauj nrog impregnated paper thiab particle boards, medium density fiberboards, oriented strand boards dai kom zoo nkauj nrog impregnated film paper. Hauv kev kho kom zoo nkauj hauv tsev, melamine formaldehyde resin muaj kev tiv thaiv dej zoo heev thiab ruaj khov, thiab siv tau rau txhua yam khoom siv kho kom zoo nkauj sab hauv tsev thiab cov khoom siv kho kom zoo nkauj sab nraum zoov. Melamine formaldehyde resin kuj siv tau rau hauv kev tsim cov plywood uas tiv taus cua sov, melamine paper (hu ua melamine paper) thiab melamine impregnated paper. Nws siv tau ua lub substrate rau impregnated adhesive film paper-finish artificial boards, thiab tseem siv ua cov khoom siv kho kom zoo nkauj sab hauv tsev xws li particle board, medium density fiberboard thiab blockboard dai kom zoo nkauj nrog impregnated paper.
Melamine formaldehyde resin tuaj yeem siv los tsim cov rooj tog zaum thiab cov khoom siv ntoo, nrog rau cov khoom siv kho kom zoo nkauj xws li veneer, xim, plywood, blockboard, thiab cov boards. Melamine formaldehyde resin tuaj yeem siv los ua cov khoom siv hauv tsev thiab cov khoom siv kho kom zoo nkauj sab hauv, thiab tuaj yeem siv los ua cov khoom ntim khoom noj. Vim tias melamine formaldehyde resin muaj lub cev zoo thiab cov khoom siv kho mob thiab tshuaj lom neeg, nws yog dav siv hauv kev tsim cov plywood thiab blockboard. Cov txiaj ntsig tseem ceeb ntawm melamine-formaldehyde resin yog lub cev zoo thiab cov khoom siv kho tshuab, zoo cua sov thiab dej tsis kam, thiab nws yog feem ntau siv hauv kev tsim khoom ntawm nruab nrab ntom fiberboard thiab particleboard.
Xav paub ntxiv txog SINOYQX hloov kho melamine formaldehyde resin, thov hu rau peb ntawm email: [email protected] , lossis hu rau peb ntawm: + 86-28-8411-1861.
Qee cov duab thiab cov ntawv luam tawm los ntawm Is Taws Nem, thiab cov ntawv pov thawj yog los ntawm tus sau thawj. Yog tias muaj kev ua txhaum cai, thov hu rau peb kom tshem tawm.