脲醛；尿素甲醛
The free formaldehyde of the urea formaldehyde resin adhesive agent is the main pollution source of artificial board.
尿醛樹脂膠粘劑中的遊離甲醛是人造闆中主要的污染源。
A novel method for producing urea formaldehyde resin with intensive viscidity, high solid content and low toxicity is introduced in this report.
介紹一種粘結強度大、固含量高、低毒環保型的脲醛樹脂粘合劑的合成方法。
With sulfonated melamine and urea as monomers and acids as catalysts, the synthesis of sulfonated melamine urea formaldehyde resin is carried out.
以磺化三聚氰胺和尿素為單體，在酸催化下，合成磺化三聚氰胺尿素甲醛樹脂。
Viscosity change of melamine urea formaldehyde glue line was investigated with a thermo mechanical analyzer (TMA) used as a parallel plates rheometer.
用熱機械分析（TMA）方法研究了三聚氰胺-尿素-甲醛樹脂固化初期膠層粘度的變化。
This paper aimed at the problem of moisture-resistance performance of finish foil, adopting melamine modified urea formaldehyde impregnated resin to make MUF.
本文采用三聚氰胺對脲醛樹脂進行改性，合成三聚氰胺改性脲醛樹脂（MUF），解決預油漆紙耐潮濕性的問題。
尿素甲醛（urea-formaldehyde）是一種由尿素和甲醛通過縮聚反應合成的熱固性樹脂，屬于氨基樹脂的重要類别。其化學結構以亞甲基鍵（—CH₂—）和亞甲基醚鍵（—CH₂—O—CH₂—）為主，形成三維交聯網絡，具有高硬度、耐熱性和絕緣性。
尿素甲醛樹脂在潮濕或高溫環境中可能緩慢釋放遊離甲醛。根據美國環保署（EPA）研究，長期暴露于高濃度甲醛可能引發呼吸道刺激，因此相關制品需符合甲醛釋放标準（如CARB認證）。
"Urea formaldehyde"（脲醛樹脂）是一種由尿素（urea）和甲醛（formaldehyde）通過縮聚反應合成的熱固性聚合物，屬于氨基樹脂的一種。以下是其詳細解釋：
若需進一步了解具體合成工藝或應用案例，可參考權威化學數據庫或專業文獻。
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