Mafotokozedwe Akatundu
Urea-formaldehyde (uf), omwe amadziwikanso kuti urea-formaldehyde, ndikupanga kwa acidicyde choyambirira, kenako ndikupanga gawo lomaliza la uresablehyde, kenako ndikupanga gawo lokhala ndi zowonjezera. Thermosetting resin. Kuchiritsidwa Urea-formaldehyde Prin ndi opepuka mu utoto kuposa phenolic restin, omasuka, ofooka a alkalin alkali, ali ndi katundu wabwino, komanso wotsika mtengo. Ndiwosiyanasiyana kwambiri pakati pa zotsamba, makamaka pakupanga matabwa osiyanasiyana opangira nkhuni, urea-formaldehyde utoto ndi akaunti yomwe imasinthidwa pafupifupi 90% ya zomatira zonse. However, urea-formaldehyde resin is easy to decompose when exposed to strong acids and alkalis. It has poor weather resistance, poor initial viscosity, large shrinkage, brittleness, water resistance, and easy aging. Artificial boards produced with urea-formaldehyde resin release formaldehyde during the manufacturing and use process. problem, so it must be modified.

Karata yanchito
Itha kugwiritsidwa ntchito popanga zinthu zomwe sizifuna kutsutsana kwa madzi ndi ma sekondale, zosintha, zokongoletsera zamakina, zingwe, komanso zimatha kugwiritsidwanso ntchito popanga matebulo ena.

Urea-formaldehyde resin is the most commonly used type of adhesive. Makamaka pakupanga matabwa osiyanasiyana opangira nkhuni, urea-formaldehyde utoto ndi akaunti yomwe imasinthidwa pafupifupi 90% ya zotsatsa zonse.