Abstract

The main operational characteristics of adhesive compositions based on phenol–formaldehyde and melamine–carbamide–formaldehyde resins with such modifiers as pectol, technical lignosulfonates, and dolomite powder are investigated. The experiments show that addition of the modifiers improves physicochemical characteristics of the adhesives, increases the strength characteristics of plywood on their basis, and decreases the content of free formaldehyde. It is possible to decrease the assembly time of the products in molding machines when using modified adhesives, which increases the performance of plywood production.

中文翻译：

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基于改性合成树脂和胶合板的操作特性评估

摘要

研究了基于苯酚-甲醛和三聚氰胺-尿素-甲醛树脂以及果胶，工业木质磺酸盐和白云石粉等改性剂的胶粘剂组合物的主要操作特性。实验表明，改性剂的加入改善了胶粘剂的物理化学特性，提高了胶合板的强度特性，并降低了游离甲醛的含量。使用改性粘合剂时，可以减少产品在模塑机中的组装时间，从而提高胶合板的生产性能。