脲醛胶生产的关键工艺条件控制

本文旨在为中小型脲醛胶生产厂产品质量的控制提供一些帮助。通过对当地脲醛胶厂的调研，总结出影响产品质量的两个共性问题，一是缩合阶段工艺条件的控制，另一个是产品贮存稳定性问题。关于工艺条件的控制包括反应体系的pH值、控制方法、测试手段和终点的掌握；影响贮存稳定性的因素有酸性合成阶段反应物的配比、最终产品的pH值、缩合度等。根据研究和生产经验，提出了解决问题的多种方案，生产实践证明这些方案的实施可提高产品质量、改善贮存稳定性。

Control of Technique Parameters in Urea-formaldehyde Adhesive Production

There are two major problems influenced the urea-formaldehyde adhesive quality in local factory,one is the technique parameters in the polymer reaction stage,and the other is the storage stability.The parameters should be controlled include PH value of reaction system,determination and the judgment of reaction end point.Factors affected the storage stability include ratio of the reactants,pH value of the end products and degree of condensation.Solution to these problems are given in this paper which can improve the product quality and storage stability.