首页/ 题库 / [问答题]某工地购得一批混凝土模板用胶合板,使用一的答案

某工地购得一批混凝土模板用胶合板,使用一定时间后发现其质量明显下降。经送检,发现该胶合板是使用脲醛树脂作胶粘剂。请分析原因。

问答题
2021-07-18 12:44
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正确答案
胶合板所使用得胶粘剂对其性能至关重要。用于混凝土模板得胶合板,应采用酚醛树脂或其它性能相当的胶粘剂,具有耐气候、耐水性,能适应在室外使用。而脲醛炻质胶粘剂尽管便宜,但不适于作室外使用。故其寿命短。

试题解析
胶合板所使用得胶粘剂对其性能至关重要。用于混凝土模板得胶合板,应采用酚醛树脂或其它性能相当的胶粘剂,具有耐气候、耐水性,能适应在室外使用。而脲醛炻质胶粘剂尽管便宜,但不适于作室外使用。故其寿命短。

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