A new type of phenolic resin adhesive for casting was prepared by condensation polymerization of furfuryl alcohol and the reaction product between phenol, phenylphenol, urea and formaldehyde.
苯酚、苯基苯酚、尿素与甲醛的反应产物进一步与糖醇缩聚生成新型铸造用改性酚醛树脂粘结剂。
The application of polymeric flocculant, the condensation product on dicyandiamide and formaldehyde, in the coagulation process for SBR production was studied.
本工作研究了高分子絮凝剂(二腈二胺甲醛缩合物)在丁苯胶凝聚工艺中的应用。
The application of polymeric flocculant, the condensation product on dicyandiamide and formaldehyde, in the coagulation process for SBR production was studied.
本工作研究了高分子絮凝剂(二腈二胺甲醛缩合物)在丁苯胶凝聚工艺中的应用。
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