Urea formany Formanddedide ýelim poroşok, ibermäge taýyn ~

Önümiň beýany
Urea-formaldehyde resin (UF), also known as urea-formaldehyde resin, is the polycondensation of urea and formaldehyde under the action of a catalyst (alkaline or acidic catalyst) to form an initial urea-formaldehyde resin, and then forms an insoluble and infusible final phase under the action of a curing agent or additive. Termetirlemek rezin. Cured urea-formaldehyde resin is lighter in color than phenolic resin, translucent, resistant to weak acids and weak alkali, has good insulation properties, excellent wear resistance, and is cheap. It is the most commonly used variety among adhesives, especially in In the manufacturing of various artificial boards in the wood processing industry, urea-formaldehyde resin and its modified products account for about 90% of the total adhesive usage. Şeýle-de bolsa, Urea-formaldidey Reýni Riskralislere güýçli kislotalara we alkalislere sezewar bolanda dargamak aňsat. Howa garşylygy gamarçylyk gamyrynyň, uly ýapyşsyz, brinkeý, iňlis we aňsatlyk kömegi bar. Urea-formaldegidle bilen öndürilen emeli mekdepler önümçilik we ulanyş işinde formaldid işjeňleşdirişi boşatdy. mesele, şonuň üçin üýtgedilmeli.

Amaly

Karea-formaldidedide rezin has köp ulanylýan ýelimiň iň köp ulanylýan görnüşidir. Especially in the manufacturing of various artificial boards in the wood processing industry, urea-formaldehyde resin and its modified products account for about 90% of the total adhesive usage.