The urea-formaldehyde resin is formed by the reaction of urea, formaldehyde, aldehyde, one or more stabilizers and modifier according to the route of weak base-weak acid-weak base.
脲醛树脂 由尿素、甲醛、二醛和一种或多种稳定剂、改性剂，按照弱碱-弱酸-弱碱 的路线反应而得。
The acid solution has a strong ability to dissolve source rock. No matter original solution is acid or basic, the reaction finally tends to be weak basic.
酸性溶液对烃源岩的溶解能力最强，无论原始反应溶液的酸碱性，反应结果都最终趋于弱碱性。
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