ʻO ka wehewehe piha
Urea-formaldehyde resin (uf),ʻikeʻiaʻo URA-Noise i ka hana o ka urea-formaldehyde i luna Thermosetting resin. Ua hoʻomālamalamaʻiaʻo Ureaʻo Urea-formaldehyde resin ma kahi o ka condin resin, conslucent, nā pale kaua, a he lole maikaʻi loa, a he lole maikaʻi ʻO ia ka mea maʻamau maʻamau i waena o nā amelika,ʻoi loa i loko o ka hanaʻana i nā papa hana kūlohelohe a me nā mea hoʻohana o URaldehyDe e pili ana i ka 90% o ka hoʻohanaʻana i nā huahana hou. 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.

Noi
Hiki ke hoʻohanaʻia i nā huahana i ponoʻole i nā pale kaiʻai, nā mea kūʻai aku, nā mea hoʻohana pono, a mālamaʻia hoʻi i ka hana pākuʻi, a hiki iā ia ka mīkini paʻi, a hiki iā nīniki mīkini

Urea-formaldehyde resin is the most commonly used type of adhesive. ʻO ka hana nui loa i ka hanaʻana o nā papa hana nani i loko o kaʻoihana lāʻau lapaʻau, Urea-formaldehyde resin no ka 90% o ka hoʻohanaʻana i ka nui o nā huahana.