I-Urea Formaldehyde Glue Powder, Ilungele Ukuthunyelwa ~

Incazelo Yomkhiqizo
I-Urea-formaldehyde resin (UF), eyaziwa nangokuthi i-urea-formaldehyde resin, iwukujiya kwe-urea ne-formaldehyde ngaphansi kwesenzo se-catalyst (i-alkaline noma i-acidic catalyst) ukwakha i-resin yokuqala ye-urea-formaldehyde, bese yakha isigaba sokugcina esingancibiliki futhi esingangeni ngaphansi kwesenzo se-ejenti yokwelapha noma isithasiselo. I-Thermosetting resin. I-Cured urea-formaldehyde resin inombala okhanyayo kune-phenolic resin, ikhanya, imelana nama-acid abuthakathaka kanye ne-alkali ebuthakathaka, inezakhiwo ezinhle zokushisa, ukumelana okuhle kokuguguleka, futhi ishibhile. Yinhlobo evame ukusetshenziswa kakhulu phakathi kwezinamathiselo, ikakhulukazi ekukhiqizweni kwamabhodi ahlukahlukene okwenziwa embonini yokucubungula izinkuni, i-urea-formaldehyde resin kanye nemikhiqizo yayo eguquliwe ibiza cishe u-90% wokusetshenziswa kwe-adhesive okuphelele. Kodwa-ke, i-urea-formaldehyde resin kulula ukubola uma ivezwa kuma-acid aqinile nama-alkali. Inokumelana nesimo sezulu okubi, i-viscosity yokuqala embi, ukushwabana okukhulu, ubuthakathaka, ukumelana namanzi, kanye nokuguga kalula. Amabhodi okwenziwa akhiqizwa nge-urea-formaldehyde resin akhipha i-formaldehyde ngesikhathi senqubo yokukhiqiza nokusebenzisa.

Isicelo
Ingasetshenziswa emikhiqizweni engadingi ukumelana kwamanzi okuphezulu kanye nezakhiwo ze-dielectric, njengeziqeshana zamandla, izinkinobho, izibambo zomshini, izimbobo zezinsimbi, izinkinobho, izidingo zansuku zonke, imihlobiso, amathayili e-mahjong, izivalo zendlu yangasese, futhi ingasetshenziswa nasekukhiqizweni kwezinye izitsha zokudla.

I-urea-formaldehyde resin iwuhlobo lwe-glue olusetshenziswa kakhulu. Ikakhulukazi ekukhiqizweni kwamabhodi ahlukahlukene okwenziwa embonini yokucubungula izinkuni, i-urea-formaldehyde resin kanye nemikhiqizo yayo eguquliwe ithatha cishe u-90% wokusetshenziswa kwe-glue iyonke.