【摘要】 对合成脲醛树脂的反应机理进行了研究,在此基础上设计了"二次加甲醛,四次加尿素"的脲醛树脂合成方法,所制得的脲醛树脂,其游离醛含量(0.10%)、甲醛释放量等物理性能均符合新标准GB18580-2001的要求。更多还原

【Abstract】 The mechanism of preparation of UF resin is studied in this paper, based on which, we have designed a new method for preparing urea-formaldehyde resin by adding urea in four protions and formaldehyde in two portions. The urea-formaldehyde resin produced by this method is low free formaldehyde content and low formaldehyde emission meeting the standards of GB18580-2001.更多还原