Urea formaldehyde glass ufa, wokonzekera kutumiza ~

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 stun. 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. Komabe, urea-formaldehyde utoto ndizosavuta kuwola mukakhala ndi ma acid olimba ndi alkalis. Ili ndi nyengo yovuta nyengo, ufa wosauka kokha, kugwedeza kwakukulu, kubisalamo madzi, kukana madzi, komanso kukasavuta. Ma bolodi opanga omwe amapangidwa ndi urea-formaldehyde retun amatulutsa formaldehyde popanga ndikugwiritsa ntchito. Vuto, motero ayenera kusinthidwa.

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 utoto ndi mtundu womwe umagwiritsidwa ntchito kwambiri womatira. Makamaka pakupanga matabwa osiyanasiyana opangira nkhuni, urea-formaldehyde utoto ndi akaunti yomwe imasinthidwa pafupifupi 90% ya zotsatsa zonse.