1·Heating is performed in the phenolic aldehyde mixed liquid preparing process so as to quicken the dissolution.
在制酚醛混合液过程中加热，以加快其溶解速度。
2·Preparation of phenolic aldehyde-epoxy structural adhesive was elaborated and the factors which effect the properties of this adhesive were primarily discussed.
论述了酚醛-环氧结构胶粘剂的制备原理及工艺，讨论了影响酚醛-环氧结构胶粘剂的性能因素。
3·The invention aims to solve the problems of poor fire resistant property and strong brittleness in the prior polyurethane foam and phenolic aldehyde foam respectively.
本发明拟解决现有聚氨酯泡沫阻燃性差，酚醛泡沫酥脆性强的问题。
4·The structural groups of carbonized products of phenolic aldehyde resin and polystyrene cation exchange resin treated at different temperatures are tested and analyzed with IR method.
用红外光谱法对不同温度下处理的酚醛和聚苯乙烯阳离子交换树脂碳化产物的结构基团进行了测试分析。
5·It mainly produces phenolic aldehyde slab, environment-protecting plywood and medium and high-grade decorative boards. The products export to U. s. A., Korea, Japan, Saudi Arabia, Israel, and etc.
产品主要类型有酚醛胶板，环保型胶合板及各种高中档装饰板等，产品远销美国、韩国、日本、沙特、以色列等国家和地区。